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Chinese Physics C> 2001, Vol. 25> Issue(4) : 304-308 

Measurement of 248Cm/252Cf Cf Spontaneous Prompt Fission Neutron Spectrum

  •  The Iinstitute of Heavy Ion Physics,Peking University,Beijing 100871,China1 V.G Klopin Radio Instiute,The Second Munnsky Av,28,194021 Saint Petersburg,Russia

  • In order to treat the waste material of nuclear power and develop new type of clean nuclear power,it is necessary to measure the neutron adta of long half life nuclei existed in the waste material.The prompt spontaneous neutron spectrum is one of the most important unclear data for new type nuclear power facilities as well as for understanding the mechanism of fission neutron emission.The measurements of 248Cm/252Cf spontaneous prompt fission neutron spectrum in the neutron energy range form 200keV to 12MeV wer performed by using TOF method.A micro-ionization chamber aws used as fission fragment detector and stibene crystal as neutron detector.The flying paths of neutrons for the measurements were 30cm,50cm and 100cm respectively.The spontaneous prompt fission neutron spectrum of 248Cm was fitted by the Maxwellian distribution and the temperature was determined as (1.401±0.006)MeV in the corresponding neutron energy range.
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    [1] Batenkov O I, Blinov A B, Blinov M V et al. Pnr. of Inter. Conf. On Nuclear Data for Science and Technology at the Forschungszentrum J iilich. Fed , Rep. Of Germany 13-17 May, 1991. 523-5252 BA0 Shang-Lian. Proc. Of the Beijing Inter. Symposium on Fast Neutron Physics, 9-13 Sep. 1991,73-753 Mannhart W. Physikalisch-Technische Bundesansalt, Braunschweig , Fed. Rep. Of Germany , IAEA Report, TECDOC-410, 1987.158-1704 LIU Jin-Quan. Doctoral Thesis of DEpt. Technology Physics. Peking University, 1993.32-35 (in Chinese)(刘金泉. 北京大学技术物理系博士论文,, 1993. 32-35)5 Blinov M. IAEA report IN DC(NDS)-114/GT, 19956 LIU Wen-Long, BAO Shang-Lian,FAN Tie-Shuan et al. Nuclear Electronics Derect Technology, 2000, 12(in Chinese)(刘文龙, 包尚联, 樊铁栓等. 核电子学与核探测技术,2000,12)7 BAO Shang-lian,WEN Chen-lin,LIU Wen-Long et al. Science and Technology of Nuclear Energy, 2000(in Chinese)(包尚联, 温琛林, 刘文龙等. 原子能科学技术, 2000(待发表))

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BAO Shang-Lian, LIU Wen-Long, WEN Chen-Lin, FAN Tie-Shuan, Measurement of 248Cm/252Cf Cf Spontaneous Prompt Fission Neutron Spectrum[J]. Chinese Physics C, 2001, 25(4): 304-308.
BAO Shang-Lian, LIU Wen-Long, WEN Chen-Lin, FAN Tie-Shuan, Measurement of 248Cm/252Cf Cf Spontaneous Prompt Fission Neutron Spectrum[J]. Chinese Physics C, 2001, 25(4): 304-308. shu
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Received: 2000-01-12
Revised: 1900-01-01
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Measurement of 248Cm/252Cf Cf Spontaneous Prompt Fission Neutron Spectrum

    Corresponding author: BAO Shang-Lian,
  • The Iinstitute of Heavy Ion Physics,Peking University,Beijing 100871,China1 V.G Klopin Radio Instiute,The Second Munnsky Av,28,194021 Saint Petersburg,Russia
  • Received Date: 2000-01-12
  • Accepted Date: 1900-01-01
  • Available Online: 2001-04-05

Abstract: In order to treat the waste material of nuclear power and develop new type of clean nuclear power,it is necessary to measure the neutron adta of long half life nuclei existed in the waste material.The prompt spontaneous neutron spectrum is one of the most important unclear data for new type nuclear power facilities as well as for understanding the mechanism of fission neutron emission.The measurements of 248Cm/252Cf spontaneous prompt fission neutron spectrum in the neutron energy range form 200keV to 12MeV wer performed by using TOF method.A micro-ionization chamber aws used as fission fragment detector and stibene crystal as neutron detector.The flying paths of neutrons for the measurements were 30cm,50cm and 100cm respectively.The spontaneous prompt fission neutron spectrum of 248Cm was fitted by the Maxwellian distribution and the temperature was determined as (1.401±0.006)MeV in the corresponding neutron energy range.

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