Commissioning of electron cooling in CSRm

YANG Xiao-Dong; LI Jie; MAO Li-Jun; LI Guo-Hong; ZHAN Wen-Long; XIA Jia-Wen; ZHAO Hong-Wei; XIAO Guo-Qing; YUAN You-Jin; SONG Ming-Tao; LIU Yong; YANG Jian-Cheng; GAO Da-Qing; ZHOU Zhong-Zu; HE Yuan; ZHANG Wei; ZHANG Jian-Hua; MAO Rui-Shi; ZHAO Tie-Cheng; Parkhomchuk Vasily

doi:10.1088/1674-1137/33/S2/005

Chinese Physics C> 2009, Vol. 33> Issue(S2) : 18-21 DOI: 10.1088/1674-1137/33/S2/005

Commissioning of electron cooling in CSRm

Abstract
HTML
Reference
Related

PDF

Abstract：
A new generation electron cooler has started operation in the heavy ion synchrotron CSRm which is used to increase the intensity of heavy ions. Transverse cooling of the ion beam after horizontal multi-turn injection allows beam accumulation at the injection energy. After optimization of the accumulation process an intensity increase in a synchrotron pulse by more than one order of magnitude has been achieved. In given accumulation time interval of 10 seconds, 10⁸ particles have been accumulated and accelerated to the final energy. The momentum spread after accumulation and acceleration in the 10^－4 range has been demonstrated in six species of ion beams. Primary measurements of accumulation process varying with electron energy, electron beam current, electron beam profile, expansion factor and injection interval have been performed. The lifetimes of ion beams in the presence of electron beams were roughly measured with the help of DCCT signal.

References

[1]

. YANG X D et al. Commissioning of electron cooling in CSRm. COOL'07, Bad Kreuznach, Germany, September,2007, 59-632. XIA J W et al. Construction and Commissioning of the HIRFL-CSR. APAC'2007, Indore, India, January, 2007,534-5383. STECK M et al. NIM. A, 2000, 441: 1754. ZHAO H W et al. HEP NP, 2007, 31(S1): 8(in Chinese)

[1]	Xiao-Zhuang Wang , Hong-Liang Dai , Zhi Wu , Yue-Kun Heng , Jie Zhang , Ping Cao , Xiao-Lu Ji , Cheng Li , Wei-Jia Sun , Si-Yu Wang , Yun Wang . BESIII ETOF upgrade readout electronics commissioning. Chinese Physics C, 2017, 41(1): 016103. doi: 10.1088/1674-1137/41/1/016103
[2]	Guo-Dong Shen , Jian-Cheng Yang , Jia-Wen Xia , Li-Jun Mao , Da-Yu Yin , Wei-Ping Chai , Jian Shi , Li-Na Sheng , A.Smirnov , Bo Wu , He Zhao . Injection method of barrier bucket supported by off-aligned electron cooling for CRing of HIAF. Chinese Physics C, 2016, 40(8): 087004. doi: 10.1088/1674-1137/40/8/087004
[3]	HU Xue-Jing , YUAN You-Jin , WU Jun-Xia , ZHANG Xiao-Hu , JIA Huan . Particle tracking simulation in the CSRe stochastic cooling system. Chinese Physics C, 2015, 39(8): 087001. doi: 10.1088/1674-1137/39/8/087001
[4]	TANG Mei-Tang , YANG Xiao-Dong , MAO Li-Jun , LI Jie , MA Xiao-Ming , YAN Tai-Lai , ZHENG Wen-Heng , ZHAO He , WU Bo , WANG Geng , RUAN Shuang , SHA Xiao-Ping . Side-effects of the space charge field introduced by a hollow electron beam in the electron cooler of CSRm. Chinese Physics C, 2015, 39(12): 127003. doi: 10.1088/1674-1137/39/12/127003
[5]	DING Wen-Bo , YU Zi , MI Geng , WANG Chun-Yan . Neutron star cooling in various sets of nucleon coupling constants. Chinese Physics C, 2013, 37(5): 055101. doi: 10.1088/1674-1137/37/5/055101
[6]	YIN Da-Yu , LIU Yong , YUAN You-Jing , YANG Jian-Cheng , LI Peng , LI Jie , CHAI Wei-Ping , SHA Xiao-Ping . Study of the heavy ion bunch compression in CSRm. Chinese Physics C, 2013, 37(5): 057001. doi: 10.1088/1674-1137/37/5/057001
[7]	MENG Ling-Jie , MA Xin-Wen , YANG Xiao-Dong , LI Jie , MAO Li-Jun , MA Xiao-Ming , YAN Tai-Lai , XIA Jia-Wen , YUAN You-Jin , XU Hu-Shan , YANG Jian-Cheng , XIAO Guo-Qing . Research of the detuning system of cooling electron beam for dielectronic recombination experiment at CSRm. Chinese Physics C, 2013, 37(1): 017004. doi: 10.1088/1674-1137/37/1/017004
[8]	YIN Da-Yu , LIU Yong , YUAN You-Jin , YANG Jian-Cheng , LI Peng , MEI Li-Rong , CHAI Wei-Ping , ZHANG Xiao-Hu . Bunch compression study using the envelope model in CSRm. Chinese Physics C, 2012, 36(6): 552-554 . doi: 10.1088/1674-1137/36/6/012
[9]	K. Hara (for the ATLAS collaboration) . ATLAS commissioning and early physics of resonance and jet production. Chinese Physics C, 2010, 34(9): 1530-1533. doi: 10.1088/1674-1137/34/9/092
[10]	YANG Xiao-Dong , MAO Li-Jun , LI Guo-Hong , LI Jie , MA Xiao-Ming , YAN Tai-Lai , YUAN You-Jin , SONG Ming-Tao , YANG Jian-Cheng , LIU Yong , ZHAO Tie-Cheng , XIA Jia-Wen , ZHANG Wei , GAO Da-Qing , ZHOU Zhong-Zu , YAN Hong-Bin , MAO Rui-Shi , HE Yuan , HAN Shao-Fei , ZHENG Jian-Hua , YANG Xiao-Tian , ZHAO Hong-Wei , XIAO Guo-Qing , YIN Da-Yu , LI Peng , JIA Huan , Parkhomchuk Vasily , Reva Vladimir , Skorobogatov Dmitry . Commissioning of electron cooling in CSRe. Chinese Physics C, 2010, 34(7): 998-1004. doi: 10.1088/1674-1137/34/7/013
[11]	XIA Jia-Wen , YUAN You-Jin , LIU Yong , YANG Jian-Cheng , XU Hu-Shan , XIAO Guo-Qing , YANG Xiao-Dong , ZHANG Wei , GAO Da-Qing , ZHOU Zhong-Zu , MAO Rui-Shi , MAO Li-Jun , HE Yuan , XU Zhe , YANG Ya-Qing , XIAO Chen , YIN Da-Yu , ZHAO Tie-Cheng , WU Jun-Xia , LI Guo-Hong , LI Jie , LI Peng , LI Ke , HU Zheng-Guo . HIRFL-CSR commissioning in 2006 and 2007. Chinese Physics C, 2009, 33(S2): 12-17. doi: 10.1088/1674-1137/33/S2/004
[12]	ZHOU Xue-Mei . Measurement of optics for the SSRF storage ring in commissioning. Chinese Physics C, 2009, 33(S2): 78-82. doi: 10.1088/1674-1137/33/S2/020
[13]	ZHANG Chuang . BEPCⅡ: construction and commissioning. Chinese Physics C, 2009, 33(S2): 60-64. doi: 10.1088/1674-1137/33/S2/016
[14]	Zhou Xue-Mei , XIA Jia-Wen , YUAN You-Jin , WU Jun-Xia , YANG Jian-Cheng , LIU Yong , LIU Wei , Mao Li-Jun , ZHOU Jun . Coupling Effect of Solenoid in CSRm. Chinese Physics C, 2006, 30(5): 462-465.
[15]	WU Jun-Xia , XIA Jia-Wen , YANG Jian-Cheng , ZHOU Xue-Mei , LIU Wei , ZHOU Jun , MAO Li-Jun , LIU Yong . Primary Design of Stochastic Cooling in CSRm. Chinese Physics C, 2006, 30(8): 797-801.
[16]	LIU Wei , XIA Jia-Wen , ZHANG Wen-Zhi , LIU Yong , XIA Guo-Xing , YANG Jian-Cheng , WU Jun-Xia , YIN Xue-Jun . Investigation of the Adiabatic Capture in CSRm. Chinese Physics C, 2004, 28(1): 92-95.
[17]	WU Jun-Xia , XIA Jia-Wen , YANG Jian-Cheng , LIU Wei , YIN Xue-Jun , LIU Yong . Stochastic Momentum Cooling——Palmer Cooling at HIRFL-CSRm. Chinese Physics C, 2004, 28(4): 437-440.
[18]	WU Jun-Xia , XIA Jia-Wen , YANG Jian-Cheng , LIU Wei , YIN Xue-Jun , LIU Yong . Betatron Stochastic Cooling in HIRFL-CSRm. Chinese Physics C, 2004, 28(7): 767-770.
[19]	Liu Shengli , Zhang Wenzhi , Xia Jiawen , Wei Baowen . Simulation Study of the Closed Orbit Distortion and Its Correction for CSRm. Chinese Physics C, 1998, 22(2): 176-179.
[20]	Rao Yinong , Xia Jiawen , Yuan Youjin , Wei Baowen . Simulation of Electron Cooling Process in a Storage Ring. Chinese Physics C, 1997, 21(S2): 73-84.

Access

Get Citation

YANG Xiao-Dong, LI Jie, MAO Li-Jun, LI Guo-Hong, ZHAN Wen-Long, XIA Jia-Wen, ZHAO Hong-Wei, XIAO Guo-Qing, YUAN You-Jin, SONG Ming-Tao, LIU Yong, YANG Jian-Cheng, GAO Da-Qing, ZHOU Zhong-Zu, HE Yuan, ZHANG Wei, ZHANG Jian-Hua, MAO Rui-Shi, ZHAO Tie-Cheng and Parkhomchuk Vasily. Commissioning of electron cooling in CSRm[J]. Chinese Physics C, 2009, 33(S2): 18-21. doi: 10.1088/1674-1137/33/S2/005

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2009-01-06
Revised: 1900-01-01

Article Metric

Article Views(4020)
PDF Downloads(636)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Commissioning of electron cooling in CSRm

Corresponding author: YANG Xiao-Dong,

Received Date: 2009-01-06

Accepted Date: 1900-01-01

Available Online: 2009-01-08

Abstract: A new generation electron cooler has started operation in the heavy ion synchrotron CSRm which is used to increase the intensity of heavy ions. Transverse cooling of the ion beam after horizontal multi-turn injection allows beam accumulation at the injection energy. After optimization of the accumulation process an intensity increase in a synchrotron pulse by more than one order of magnitude has been achieved. In given accumulation time interval of 10 seconds, 10⁸ particles have been accumulated and accelerated to the final energy. The momentum spread after accumulation and acceleration in the 10^－4 range has been demonstrated in six species of ion beams. Primary measurements of accumulation process varying with electron energy, electron beam current, electron beam profile, expansion factor and injection interval have been performed. The lifetimes of ion beams in the presence of electron beams were roughly measured with the help of DCCT signal.

HTML

Reference (1)

Commissioning of electron cooling in CSRm

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article