2008 Vol. 32, No. S2
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Abstract:
We briefly introduce the current status and progress in the field of radioactive ion beam physics and the study of super-heavy nuclei. Some important problems and research directions are outlined, such as the sub-barrier fusion reaction, the direct r...
We briefly introduce the current status and progress in the field of radioactive ion beam physics and the study of super-heavy nuclei. Some important problems and research directions are outlined, such as the sub-barrier fusion reaction, the direct r...
Abstract:
The status of heavy-ion cancer therapy has been reviewed. The existing and constructing heavy-ion beam facilities for cancer therapy in the world are introduced. The first clinical trials of superficially placed tumor therapy at heavy ion research fa...
The status of heavy-ion cancer therapy has been reviewed. The existing and constructing heavy-ion beam facilities for cancer therapy in the world are introduced. The first clinical trials of superficially placed tumor therapy at heavy ion research fa...
Abstract:
We calculated the relative abundances of charge hadron, KS0, Λ and Λ in the near-side and away-side cones correlated with triggered high pT particles in minimum bias in p+p collisions at √sNN=200 GeV in the PYTHIA model. From the quark and gluon jet ...
We calculated the relative abundances of charge hadron, KS0, Λ and Λ in the near-side and away-side cones correlated with triggered high pT particles in minimum bias in p+p collisions at √sNN=200 GeV in the PYTHIA model. From the quark and gluon jet ...
Abstract:
Uranium on uranium target (U+U) collision experiment has been proposed to be performed on Cooling Storage Ring (CSR), External Target Facility (ETF), which is to be built at Lanzhou, China, delivering the uranium beam up to 520 MeV/nucleon. It is pre...
Uranium on uranium target (U+U) collision experiment has been proposed to be performed on Cooling Storage Ring (CSR), External Target Facility (ETF), which is to be built at Lanzhou, China, delivering the uranium beam up to 520 MeV/nucleon. It is pre...
Abstract:
The non-central Au+Au collision at center-of-mass energy √sNN=200 GeV is simulated using AMPT model. It is found that both the integral and differential elliptic flow behaves differently for partons freezing out at different stages. It is shown that ...
The non-central Au+Au collision at center-of-mass energy √sNN=200 GeV is simulated using AMPT model. It is found that both the integral and differential elliptic flow behaves differently for partons freezing out at different stages. It is shown that ...
Abstract:
Using a multisource ideal gas (MSIG) model, we reconstruct the transverse emission source in the momentum space for light fragments produced in reactions 86Kr-124Sn at 25 MeV/nucleon and b=7—10 fm based on the theoretical predictions of the Isospin-D...
Using a multisource ideal gas (MSIG) model, we reconstruct the transverse emission source in the momentum space for light fragments produced in reactions 86Kr-124Sn at 25 MeV/nucleon and b=7—10 fm based on the theoretical predictions of the Isospin-D...
Abstract:
The predictions of the directed collective flow by using the relativistic quantum molecular dynamics model are presented for the heavy-ion reactions at HIRFL-CSR energies. The directive flow value as a function of the emitting nucloen rapidity in the...
The predictions of the directed collective flow by using the relativistic quantum molecular dynamics model are presented for the heavy-ion reactions at HIRFL-CSR energies. The directive flow value as a function of the emitting nucloen rapidity in the...
Abstract:
We introduce and summary our research progress on the effective masses of K meson in dense nuclear matter.
We introduce and summary our research progress on the effective masses of K meson in dense nuclear matter.
Abstract:
The longitudinal momentum distribution (P//) of fragments after one-proton removal from 23Al and reaction cross sections (σR) for 23,24Al on carbon target at 74A MeV have been measured simultaneously. An enhancement in σR is observed for 23Al compare...
The longitudinal momentum distribution (P//) of fragments after one-proton removal from 23Al and reaction cross sections (σR) for 23,24Al on carbon target at 74A MeV have been measured simultaneously. An enhancement in σR is observed for 23Al compare...
Abstract:
Some experimental techniques and theoretical analysis on unbound nuclei structure study are briefly introduced in this article. The unbound nuclei structure investigation can inspect the reliability of theoretical calculation, and is also important t...
Some experimental techniques and theoretical analysis on unbound nuclei structure study are briefly introduced in this article. The unbound nuclei structure investigation can inspect the reliability of theoretical calculation, and is also important t...
Abstract:
The β-delayed neutron and γ spectra of neutron-rich nucleus 21N using β-γ and β-n coincidence measurements were presented in this paper. Thirteen new neutron groups ranging from 0.28 MeV to 4.98 MeV and with a total branching ratio 88.7±4.2% were obs...
The β-delayed neutron and γ spectra of neutron-rich nucleus 21N using β-γ and β-n coincidence measurements were presented in this paper. Thirteen new neutron groups ranging from 0.28 MeV to 4.98 MeV and with a total branching ratio 88.7±4.2% were obs...
Abstract:
The structures of N=7 and N=8 isotones in Be-F mass range are investigated in the framework of the single-particle shell model. Different from the traditional potential terms, the l2 coupling is included in the average nuclear potential. Calculations...
The structures of N=7 and N=8 isotones in Be-F mass range are investigated in the framework of the single-particle shell model. Different from the traditional potential terms, the l2 coupling is included in the average nuclear potential. Calculations...
Abstract:
Experimental data of nuclear β+-decay half-lives are systematically analyzed and investigated. We present an exponential law between the half-life of β+-decay with the same forbiddenness and the nucleon number (Z,N) of parent nucleus far from the β-s...
Experimental data of nuclear β+-decay half-lives are systematically analyzed and investigated. We present an exponential law between the half-life of β+-decay with the same forbiddenness and the nucleon number (Z,N) of parent nucleus far from the β-s...
Abstract:
The basic process of an exotic decay mode namely β-delayed fission is simply introduced. The progress status of the study in the world is essentialized. The observation of β-delayed fission of 228Ac is reported. The radium was radiochemically separat...
The basic process of an exotic decay mode namely β-delayed fission is simply introduced. The progress status of the study in the world is essentialized. The observation of β-delayed fission of 228Ac is reported. The radium was radiochemically separat...
Abstract:
A thick natural uranium target was bombarded with a 60 MeV/u 18O beam. The neutron-rich isotope 230Ra as the target residue was produced through the multinucleon transfer reaction(238U-4p-4n). The barium and radium fraction as BaCl2 precipitate were ...
A thick natural uranium target was bombarded with a 60 MeV/u 18O beam. The neutron-rich isotope 230Ra as the target residue was produced through the multinucleon transfer reaction(238U-4p-4n). The barium and radium fraction as BaCl2 precipitate were ...
Abstract:
This paper described the nuclear astrophysical studies using the unstable ion beam facility GIRAFFE in CIAE, by indirect measurements. We measured the angular distributions for some single proton or neutron transfer reactions, such as 7Be(d,n)8B, 11C...
This paper described the nuclear astrophysical studies using the unstable ion beam facility GIRAFFE in CIAE, by indirect measurements. We measured the angular distributions for some single proton or neutron transfer reactions, such as 7Be(d,n)8B, 11C...
Abstract:
We have developed the formula and the numerical code for calculating the rearrangement contribution to the single particle (s.p.) properties in asymmetric nuclear matter induced by three-body forces within the framework of the Brueckner theory extend...
We have developed the formula and the numerical code for calculating the rearrangement contribution to the single particle (s.p.) properties in asymmetric nuclear matter induced by three-body forces within the framework of the Brueckner theory extend...
Abstract:
We calculate the in-medium nucleon-nucleon scattering cross sections from the G-matrix using the Dirac-Brueckner-Hartree-Fock (DBHF) approach. And we investigate the influence of the different representations of the G-matrix to the cross sections, ...
We calculate the in-medium nucleon-nucleon scattering cross sections from the G-matrix using the Dirac-Brueckner-Hartree-Fock (DBHF) approach. And we investigate the influence of the different representations of the G-matrix to the cross sections, ...
Abstract:
The neutron 3PF2 pairing gap in pure neutron matter, neutron 3PF2 gap and neutron-proton 3SD1 gap in symmetric nuclear matter have been studied by using the Brueckner-Hartree-Fock(BHF) approach and the BCS theory. We have concentrated on investigatin...
The neutron 3PF2 pairing gap in pure neutron matter, neutron 3PF2 gap and neutron-proton 3SD1 gap in symmetric nuclear matter have been studied by using the Brueckner-Hartree-Fock(BHF) approach and the BCS theory. We have concentrated on investigatin...
Abstract:
We study the hadron-quark phase transition in the interior of neutron stars. The relativistic mean field (RMF) theory is adopted to describe the hadronic matter phase, while the Nambu-Jona-Lasinio (NJL) model is used for the quark matter phase. We in...
We study the hadron-quark phase transition in the interior of neutron stars. The relativistic mean field (RMF) theory is adopted to describe the hadronic matter phase, while the Nambu-Jona-Lasinio (NJL) model is used for the quark matter phase. We in...
Abstract:
We study the medium modifications of nucleon properties in nuclear matter and finite nuclei. The nucleons are described as nontopological solitons, which interact through the self-consistent exchange of scalar and vector mesons. The model adopted inc...
We study the medium modifications of nucleon properties in nuclear matter and finite nuclei. The nucleons are described as nontopological solitons, which interact through the self-consistent exchange of scalar and vector mesons. The model adopted inc...
Abstract:
We study the influence of strong magnetic fields on antikaon condensation in neutron star matter using the quark-meson coupling (QMC) model. The QMC model describes a nuclear many-body system as nonoverlapping MIT bags interacting through the self-co...
We study the influence of strong magnetic fields on antikaon condensation in neutron star matter using the quark-meson coupling (QMC) model. The QMC model describes a nuclear many-body system as nonoverlapping MIT bags interacting through the self-co...
Abstract:
We calculate the charge form factors of the even-even isotopes on the Z=20 and 28 isotopic chains, including both the stable nuclei and unstable ones, and investigate the influences of the change of neutron number on the charge form factors of the Ca...
We calculate the charge form factors of the even-even isotopes on the Z=20 and 28 isotopic chains, including both the stable nuclei and unstable ones, and investigate the influences of the change of neutron number on the charge form factors of the Ca...
Abstract:
With the CDCC approach, the reactions induced by weakly bound nucleus deuteron are studied. By comparing the results from CDCC approach and spherical optical model with our global deuteron optical potential, we find that it is reasonable and valuable...
With the CDCC approach, the reactions induced by weakly bound nucleus deuteron are studied. By comparing the results from CDCC approach and spherical optical model with our global deuteron optical potential, we find that it is reasonable and valuable...
Abstract:
Based on the urgent requirement of the (n,γ) reaction cross-section in the energy range of keV~MeV, 4π gamma total absorption facility (GTAF) is being constructed at China Institute of Atomic Energy (CIAE). In this paper, firstly the review of histor...
Based on the urgent requirement of the (n,γ) reaction cross-section in the energy range of keV~MeV, 4π gamma total absorption facility (GTAF) is being constructed at China Institute of Atomic Energy (CIAE). In this paper, firstly the review of histor...
Abstract:
In this paper we study collective motion under random two-body interactions in the fermion dynamical symmetry Model (FDSM). It is found that a Hamiltonian with the SO(8) symmetry of the FDSM does not give generic vibration and rotation under random i...
In this paper we study collective motion under random two-body interactions in the fermion dynamical symmetry Model (FDSM). It is found that a Hamiltonian with the SO(8) symmetry of the FDSM does not give generic vibration and rotation under random i...
Abstract:
Projected SD-pair shell model is used to study the collectivity of low-lying state for even-even Xe isotopes. It is found that the collectivity can be reproduced in term of a three-parameter Hamiltonian.
Projected SD-pair shell model is used to study the collectivity of low-lying state for even-even Xe isotopes. It is found that the collectivity can be reproduced in term of a three-parameter Hamiltonian.
Abstract:
The yrast bands of 51,52,53Fe have been studied with a microscopical effective Hamiltonian derived from the charge-dependent Bonn NN potential. Calculations obtain satisfactory agreements with experimental data, reproducing the observed isomeric stat...
The yrast bands of 51,52,53Fe have been studied with a microscopical effective Hamiltonian derived from the charge-dependent Bonn NN potential. Calculations obtain satisfactory agreements with experimental data, reproducing the observed isomeric stat...
Abstract:
By using a new five-parameter formula derived from the WKB approximation, we systematically calculate the spontaneous fission half-lives of even-even nuclei with Z=90—108. The isospin effect is taken into account in the new formula. The calculated ha...
By using a new five-parameter formula derived from the WKB approximation, we systematically calculate the spontaneous fission half-lives of even-even nuclei with Z=90—108. The isospin effect is taken into account in the new formula. The calculated ha...
Abstract:
The high spin states of 106Ag were populated via the fusion-evaporation reaction 100Mo(11B,5n)106Ag at a beam energy of 60 MeV. A new level scheme of 106Ag is presented. The positive parity band based on the configuration of πg9/2⊙ν[h211/2(g7/2/d5/2)...
The high spin states of 106Ag were populated via the fusion-evaporation reaction 100Mo(11B,5n)106Ag at a beam energy of 60 MeV. A new level scheme of 106Ag is presented. The positive parity band based on the configuration of πg9/2⊙ν[h211/2(g7/2/d5/2)...
Abstract:
The high spin states of 112In have been populated via the 110Pd(7Li,5n)112In reaction with a beam energy of 50 MeV. By analyzing the γ-γ coincidence relations and DCO ratios of γ transitions，A new level scheme of 112In including seventy-four new gamm...
The high spin states of 112In have been populated via the 110Pd(7Li,5n)112In reaction with a beam energy of 50 MeV. By analyzing the γ-γ coincidence relations and DCO ratios of γ transitions，A new level scheme of 112In including seventy-four new gamm...
Abstract:
Recent progress in research on octupole deformation around Z=56, N=88 neutron-rich nuclei by our cooperative groups of Tsinghua University, Vanderbilt University and Lawrence Berkeley National Laboratory has been introduced. The experiment was carrie...
Recent progress in research on octupole deformation around Z=56, N=88 neutron-rich nuclei by our cooperative groups of Tsinghua University, Vanderbilt University and Lawrence Berkeley National Laboratory has been introduced. The experiment was carrie...
Abstract:
High-spin isomeric states in proton-rich A~190 nuclei have been investigated using configuration-constrained calculations of potential-energy surfaces. The calculations reproduce reasonably the experimental data, and predict shape coexistence of high...
High-spin isomeric states in proton-rich A~190 nuclei have been investigated using configuration-constrained calculations of potential-energy surfaces. The calculations reproduce reasonably the experimental data, and predict shape coexistence of high...
Abstract:
High-spin states of 160Tm have been studied through the 146Nd(19F, 5n) reaction at a beam energy of 102 MeV. The previously known πh11/2⊙νi13/2 yrast band and πh11/2⊙νh9/2 side band are confirmed, and several low-lying levels are observed. A 4-quasip...
High-spin states of 160Tm have been studied through the 146Nd(19F, 5n) reaction at a beam energy of 102 MeV. The previously known πh11/2⊙νi13/2 yrast band and πh11/2⊙νh9/2 side band are confirmed, and several low-lying levels are observed. A 4-quasip...
Abstract:
The criteria for chiral doublet bands based on one particle and one hole coupled to a triaxial rotor have been summarized. Candidate chiral doublet bands in A~100 and 130 odd-odd nuclei were checked against these chiral criteria. Two representative c...
The criteria for chiral doublet bands based on one particle and one hole coupled to a triaxial rotor have been summarized. Candidate chiral doublet bands in A~100 and 130 odd-odd nuclei were checked against these chiral criteria. Two representative c...
Abstract:
The high spin states of 129Ce have been populated via heavy-ion fusion evaporation reaction 96Mo (37Cl, 1p3n) 129Ce. The comparison between the signature- and B(M1)-staggering defined by Hagemann and Hamamoto have been showed in the negative-parity b...
The high spin states of 129Ce have been populated via heavy-ion fusion evaporation reaction 96Mo (37Cl, 1p3n) 129Ce. The comparison between the signature- and B(M1)-staggering defined by Hagemann and Hamamoto have been showed in the negative-parity b...
Abstract:
The high-spin states of 110Ag were populated via fusion evaporation reaction 110Pd(7Li, 2p2n)110Ag and a new level scheme has been presented. The systematics of signature splitting and signature inversion of the πg9/2⊙νh11/2 configuration band in Ag ...
The high-spin states of 110Ag were populated via fusion evaporation reaction 110Pd(7Li, 2p2n)110Ag and a new level scheme has been presented. The systematics of signature splitting and signature inversion of the πg9/2⊙νh11/2 configuration band in Ag ...
Abstract:
The excitation spectra of nuclei in the regions 150156Gd. Also we have shown the result of the nucleus 102Ru which is given as an example of the reverse transition, i.e., vibration to rotation. The TRS plots reveal that, as the spin increases up the ...
The excitation spectra of nuclei in the regions 150156Gd. Also we have shown the result of the nucleus 102Ru which is given as an example of the reverse transition, i.e., vibration to rotation. The TRS plots reveal that, as the spin increases up the ...
Abstract:
We have employed the shell model and Skyrme-Hartree-Fock methods to investigate the structure of the neutron-rich nucleus 19N. The level scheme of 19N from the shell-model calculation with the WBT interaction is displayed. The potential-energy-surfac...
We have employed the shell model and Skyrme-Hartree-Fock methods to investigate the structure of the neutron-rich nucleus 19N. The level scheme of 19N from the shell-model calculation with the WBT interaction is displayed. The potential-energy-surfac...
Abstract:
Shape coexistence appears in the region of superheavy nuclei. Calculations for the nobelium isotopes have been carried out with the cranking TRS model. It shows that normal deformed and superdeformed prolate shapes coexist. Particularly for the nucle...
Shape coexistence appears in the region of superheavy nuclei. Calculations for the nobelium isotopes have been carried out with the cranking TRS model. It shows that normal deformed and superdeformed prolate shapes coexist. Particularly for the nucle...
Abstract:
The effects of the spin-orbit interaction in exotic nuclei are investigated by studying the binding energies and deformations of Si, S and Ar isotopes. The calculations were obtained by Skyrme-Hartree-Fock model with various spin-orbit potentials. Th...
The effects of the spin-orbit interaction in exotic nuclei are investigated by studying the binding energies and deformations of Si, S and Ar isotopes. The calculations were obtained by Skyrme-Hartree-Fock model with various spin-orbit potentials. Th...
Abstract:
The reflection asymmetric shell model (RASM) has been applied to describe the
alternating-parity rotational bands in neutron-rich 142,144,146,148Ba octupole nuclei. The calculated rotational bands are in good agreement with the available experimental ...
The reflection asymmetric shell model (RASM) has been applied to describe the
alternating-parity rotational bands in neutron-rich 142,144,146,148Ba octupole nuclei. The calculated rotational bands are in good agreement with the available experimental ...
Abstract:
If is there enhanced sensitivity to variations of fine structure constant, nucleon mass and meson masses in the transition between the low energy and long-lived nuclear isomer and ground states? To answer this open problem, we investigate the transit...
If is there enhanced sensitivity to variations of fine structure constant, nucleon mass and meson masses in the transition between the low energy and long-lived nuclear isomer and ground states? To answer this open problem, we investigate the transit...
Abstract:
The measurement of the electromagnetic polarizabilities have been given extensive attention, which is also a fresh field of the experimental nuclear physics. Now we will use the method - the light nucleus scattered by the heavy nucleus at energies be...
The measurement of the electromagnetic polarizabilities have been given extensive attention, which is also a fresh field of the experimental nuclear physics. Now we will use the method - the light nucleus scattered by the heavy nucleus at energies be...
Abstract:
The magnetic-rotational band in 85Zr was populated by the fusion-evaporation reaction 60Ni(28Si, 2pn)85Zr with a 98 MeV Si beam from the HI-13 tandem accelerator at China Institute of Atomic Energy. The g-factors of the high spin states of this magne...
The magnetic-rotational band in 85Zr was populated by the fusion-evaporation reaction 60Ni(28Si, 2pn)85Zr with a 98 MeV Si beam from the HI-13 tandem accelerator at China Institute of Atomic Energy. The g-factors of the high spin states of this magne...
Abstract:
The spin polarized β-emitting mirror nuclei 12B(Iπ=1+,T1/2=20.18 ms) and 12N(Iπ=1+,T1/2=11 ms) are produced by the low nuclear reactions 11B(d, p) 12B and 10B(3He,n) 12N and by selecting the projectile energy and the recoil angle. Their magnetic mome...
The spin polarized β-emitting mirror nuclei 12B(Iπ=1+,T1/2=20.18 ms) and 12N(Iπ=1+,T1/2=11 ms) are produced by the low nuclear reactions 11B(d, p) 12B and 10B(3He,n) 12N and by selecting the projectile energy and the recoil angle. Their magnetic mome...
Development of Accurate/Advanced Radiotherapy Treatment Planning and Quality Assurance System (ARTS)
Abstract:
A prototype of accurate/advanced radiotherapy treatment planning and quality assurance system (ARTS) is developed and key technical issues related to the improvement of the treatment accuracy is studied. After a brief introduction to the prototype of...
A prototype of accurate/advanced radiotherapy treatment planning and quality assurance system (ARTS) is developed and key technical issues related to the improvement of the treatment accuracy is studied. After a brief introduction to the prototype of...
Abstract:
A facility has been constructed for research of charged particle emission
induced by fast neutron reactions ((n, x) reaction) based on the white
neutron source and the quasi-monoenergetic neutron source which will be
provided by the upgrade of the HI-13...
Abstract:
The research of the in-beam efficiency calibration of Neutron Detector Array of Peking University using 17N and 16C beams was introduced in this paper. The efficiency of neutron wall and ball are comparable to the foreign similar devices and neutrons...
The research of the in-beam efficiency calibration of Neutron Detector Array of Peking University using 17N and 16C beams was introduced in this paper. The efficiency of neutron wall and ball are comparable to the foreign similar devices and neutrons...
Abstract:
Shanghai Laser Electron Gamma Source, a high intensity beam line of γ-ray, is expected to generate γ-rays up to the maximum energy of 22 MeV by Compton backscattering between a CO2 laser and electrons in the 3.5 GeV storage ring of the Shanghai Synch...
Shanghai Laser Electron Gamma Source, a high intensity beam line of γ-ray, is expected to generate γ-rays up to the maximum energy of 22 MeV by Compton backscattering between a CO2 laser and electrons in the 3.5 GeV storage ring of the Shanghai Synch...
Abstract:
A new forward vertex detector is under construction for the PHENIX experiment and will be installed in 2011. The device consists of two sets of four disks of silicon mini-strips and matches the acceptance of the existing muon detectors, and will prov...
A new forward vertex detector is under construction for the PHENIX experiment and will be installed in 2011. The device consists of two sets of four disks of silicon mini-strips and matches the acceptance of the existing muon detectors, and will prov...
Abstract:
A Penning trap, which can measure the atomic masses with the highest precision, is one of the most important facilities in nuclear physics research nowadays. The precision mass data play an important role in the studies of nuclear models, mass formul...
A Penning trap, which can measure the atomic masses with the highest precision, is one of the most important facilities in nuclear physics research nowadays. The precision mass data play an important role in the studies of nuclear models, mass formul...
Abstract:
The present detection limit for 182Hf at CIAE HI-13 AMS systems could not satisfy various applications (e. g. detection of a nearby supernovae signal). Therefore, techniques were developed in this work to improve the AMS measurement of 182Hf mainly o...
The present detection limit for 182Hf at CIAE HI-13 AMS systems could not satisfy various applications (e. g. detection of a nearby supernovae signal). Therefore, techniques were developed in this work to improve the AMS measurement of 182Hf mainly o...
Abstract:
A new method for measuring selenium-79 with AMS, which is based on extracting molecular negative ions, is described in this paper. According to the experimental results, the extraction ion form SeO2－ could depress the interference of Bromine-79 as mu...
A new method for measuring selenium-79 with AMS, which is based on extracting molecular negative ions, is described in this paper. According to the experimental results, the extraction ion form SeO2－ could depress the interference of Bromine-79 as mu...
Abstract:
The schematic layout and principle of a Bragg curve detector were showed in this paper. A Bragg curve detector was systemically modified and its performance was improved. The total energy resolution of the detector is 0.9% for alpha particle at energ...
The schematic layout and principle of a Bragg curve detector were showed in this paper. A Bragg curve detector was systemically modified and its performance was improved. The total energy resolution of the detector is 0.9% for alpha particle at energ...
Abstract:
Tumor radiotherapy was a promising modality and over 100 years. Beams of heavy-charged particles show high RBE advantages and become the optimum tool for tumors therapy. Newly, along with the development of accelerators, scintillators, micro-electron...
Tumor radiotherapy was a promising modality and over 100 years. Beams of heavy-charged particles show high RBE advantages and become the optimum tool for tumors therapy. Newly, along with the development of accelerators, scintillators, micro-electron...
Abstract:
This article has introduced the origin and speciality of fast-transient signal, and told the meaning of researching on fast-transient signal. The main troubles of sampling on fast-transient signal is its `fast' and `transient', and the experiment's b...
This article has introduced the origin and speciality of fast-transient signal, and told the meaning of researching on fast-transient signal. The main troubles of sampling on fast-transient signal is its `fast' and `transient', and the experiment's b...
Abstract:
The RFQ cooler and buncher RFQ1L is a key device of the SHANS (Spectrometer for Heavy Atoms and Nuclear Structure). The status of the machining and assembly of the central part is introduced, and the structure of the whole RFQ1L system and the prelim...
The RFQ cooler and buncher RFQ1L is a key device of the SHANS (Spectrometer for Heavy Atoms and Nuclear Structure). The status of the machining and assembly of the central part is introduced, and the structure of the whole RFQ1L system and the prelim...
Abstract:
A new type of particle identification (PID) detector based on measurements of 1-D Time-Of-Propagation (TOP) and 1-D space information is described. Geant4 toolkit is used to simulate the propagation of Cherenkov photon in thin quartz bar radiator. Co...
A new type of particle identification (PID) detector based on measurements of 1-D Time-Of-Propagation (TOP) and 1-D space information is described. Geant4 toolkit is used to simulate the propagation of Cherenkov photon in thin quartz bar radiator. Co...
Abstract:
This paper mainly summarizes investigation of TU GAS (Ar:CH4:CF4=90:7:3) with the GEM-TPC detection system that had been developed , especially, the gas's bigger attachment coefficient was obtained and the result does not agree with the results of th...
This paper mainly summarizes investigation of TU GAS (Ar:CH4:CF4=90:7:3) with the GEM-TPC detection system that had been developed , especially, the gas's bigger attachment coefficient was obtained and the result does not agree with the results of th...
Abstract:
Based on the principles of transmission line and the output signal of GEM detector, a full simulation model of delay-line circuit has been described in this paper. The consistency of simulation results and experimental data shows that the method is v...
Abstract:
Neutron penumbral imaging technique is an important diagnosis method in Inertial Confined Fusion, and the design of the aperture shape will affect the resolution of the imaging system. In this paper, several designs of the aperture shape are discusse...
Neutron penumbral imaging technique is an important diagnosis method in Inertial Confined Fusion, and the design of the aperture shape will affect the resolution of the imaging system. In this paper, several designs of the aperture shape are discusse...
Abstract:
PIN detectors have been extensively used to detect charged particles and X-ray. The new type PIN detectors were irradiated by different energy protons, and their irradiation tolerance was investigated. Relative charge collection efficiency, energy sp...
PIN detectors have been extensively used to detect charged particles and X-ray. The new type PIN detectors were irradiated by different energy protons, and their irradiation tolerance was investigated. Relative charge collection efficiency, energy sp...
Displacement damage dose approach to analyze ion irradiation effects on homemade GaAs/Ge solar cells
Abstract:
Displacement damage dose is applied to analyze the irradiation effects of 2 MeV carbon ions and 0.28~20 MeV protons on homemade GaAs/Ge solar cells. The NIEL for each ion is modified by taking into account the distribution of Bragg damage peak in the...
Displacement damage dose is applied to analyze the irradiation effects of 2 MeV carbon ions and 0.28~20 MeV protons on homemade GaAs/Ge solar cells. The NIEL for each ion is modified by taking into account the distribution of Bragg damage peak in the...
Abstract:
The total electron emission yields following the interaction of slow highly charged ions (SHCI) O4+ with different material surfaces (W, Au, Si and SiO2) have been measured. It is found that the electron emission yield γ increases proportionally with...
The total electron emission yields following the interaction of slow highly charged ions (SHCI) O4+ with different material surfaces (W, Au, Si and SiO2) have been measured. It is found that the electron emission yield γ increases proportionally with...
Abstract:
Amorphous SiO2 thin films with about 400—500 nm in thickness were thermally grown on single crystalline silicon. These SiO2/Si samples were firstly implanted at room temperature (RT) with 100 keV carbon ions to 2.0×1017, 5.0×1017 or 1.2×1018 ions/cm2...
Amorphous SiO2 thin films with about 400—500 nm in thickness were thermally grown on single crystalline silicon. These SiO2/Si samples were firstly implanted at room temperature (RT) with 100 keV carbon ions to 2.0×1017, 5.0×1017 or 1.2×1018 ions/cm2...
Abstract:
Single-crystalline Si (100) samples were implanted with 30 keV He2+ ions to doses ranging from 2.0×1016 to 2.0×1017ions /cm2 and subsequently thermally annealed at 800℃ for 30min. The morphological change of the samples with the increase of implantat...
Single-crystalline Si (100) samples were implanted with 30 keV He2+ ions to doses ranging from 2.0×1016 to 2.0×1017ions /cm2 and subsequently thermally annealed at 800℃ for 30min. The morphological change of the samples with the increase of implantat...
Abstract:
The quadrupole interaction in nano-soft magnetic material Fe73.5Cu1Nb3Si13.5B9 has been studied by perturbed angular correlation using 62Zn probe nuclei from the ISOL radioactive nuclear beam facility at CIAE HI-13 tandem accelerator. Two quadrupole ...
The quadrupole interaction in nano-soft magnetic material Fe73.5Cu1Nb3Si13.5B9 has been studied by perturbed angular correlation using 62Zn probe nuclei from the ISOL radioactive nuclear beam facility at CIAE HI-13 tandem accelerator. Two quadrupole ...
Abstract:
Two kinds of Fe/Cu multilayers with different modulation wavelength were deposited on cleaved Si(100) substrates and then irradiated at room temperature using 400 keV Xe20+ in a wide range of irradiation fluences. As a comparison, thermal annealing a...
Two kinds of Fe/Cu multilayers with different modulation wavelength were deposited on cleaved Si(100) substrates and then irradiated at room temperature using 400 keV Xe20+ in a wide range of irradiation fluences. As a comparison, thermal annealing a...
Abstract:
Crystalline n-type Si (100) wafers were implanted at room temperature with
160 keV He ions to a fluence of 5×1016cm－2 or 40 keV H ions to a fluence of 1×1016cm－2, singly or in combination, followed by thermal annealing. Scanning electron microscopy (S...
Crystalline n-type Si (100) wafers were implanted at room temperature with
160 keV He ions to a fluence of 5×1016cm－2 or 40 keV H ions to a fluence of 1×1016cm－2, singly or in combination, followed by thermal annealing. Scanning electron microscopy (S...
Abstract:
One of main difficulties in the experiments of inner-shell ionization of atoms by positron impact near threshold energy region is the relatively high low-energy background, which is caused by the deposited part of energy in semi-conductor X-ray detec...
One of main difficulties in the experiments of inner-shell ionization of atoms by positron impact near threshold energy region is the relatively high low-energy background, which is caused by the deposited part of energy in semi-conductor X-ray detec...
Abstract:
The paper selects 15 samples of the pottery warriors in Qinshihuang Mausoleum Pit K0006, 21 samples of pottery warriors in Qinshihuang Mausoleum Pit K0007 and 75 samples of clay nearby Qinshihuang mausoleum. The contents of 23 elements were measured ...
The paper selects 15 samples of the pottery warriors in Qinshihuang Mausoleum Pit K0006, 21 samples of pottery warriors in Qinshihuang Mausoleum Pit K0007 and 75 samples of clay nearby Qinshihuang mausoleum. The contents of 23 elements were measured ...
Abstract:
Loess is the most important and the most typical continental classic sediments of Quaternary. So the measurement of In-situ produced cosmogenic 10Be is expected to be used for the Loess stratigraphic age. But the production rate of In-situ produced c...
Loess is the most important and the most typical continental classic sediments of Quaternary. So the measurement of In-situ produced cosmogenic 10Be is expected to be used for the Loess stratigraphic age. But the production rate of In-situ produced c...
Abstract:
Nuclear analytical technique is an efficient method in study of rarity cultural relic for its advantage of nondestructive analysis. Longquan celadon is one kind of the most important ancient porcelain in China. In order to determine the inner provena...
Nuclear analytical technique is an efficient method in study of rarity cultural relic for its advantage of nondestructive analysis. Longquan celadon is one kind of the most important ancient porcelain in China. In order to determine the inner provena...
Abstract:
The excess 3H (tritium) have been observed in the volcanic lakes Nemrut (Turkey), Laacher (Germany) and Pavin (France). The 4He and 3He concentrations in Lakes Nemrut, Laacher, and Pavin were determined to be 25 and 190, 10 and 50, and 70 and 500 tim...
The excess 3H (tritium) have been observed in the volcanic lakes Nemrut (Turkey), Laacher (Germany) and Pavin (France). The 4He and 3He concentrations in Lakes Nemrut, Laacher, and Pavin were determined to be 25 and 190, 10 and 50, and 70 and 500 tim...
Abstract:
Treatment planning of heavy-ion radiotherapy involves predictive calculation of not only the physical dose but also the biological dose in a patient body. The goal in designing beam-modulating devices for heavy ion therapy is to achieve uniform biolo...
Treatment planning of heavy-ion radiotherapy involves predictive calculation of not only the physical dose but also the biological dose in a patient body. The goal in designing beam-modulating devices for heavy ion therapy is to achieve uniform biolo...
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- Cover Story (Issue 1, 2025) Comments on Prediction of Energy Resolution inthe JUNO Experiment
- Cover Story (Issue 12, 2024) | Doubly heavy meson puzzle: precise prediction of the mass spectra and hadronic decay with coupled channel effects to hunt for beauty-charm family
- Cover Story (Issue 9, 2024) Measurement of solar pp neutrino flux using electron recoil data from PandaX-4T commissioning run
- Cover Story (Issue 11, 2024) ï½ Form factor for Dalitz decays from J/Ï to light pseudoscalars
- Cover Story (Issue 3, 2024) | First measurement of the ground-state mass of 22Al helps to evaluate the ab-initio theory
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