In-beam Measurement of β<SUP>+</SUP> Delay Particle Decay on RIBLL

XIAO Zhi-Gang; WANG Hong-Wei; WU He-Yu; LIU Yong-Ying; JIN Gen-Ming; ZHANG Bao-Guo; LI Zu-Yu; DUAN Li-Min; WEI Zhi-Yong; WANG Su-Fang; LU Zhao-Hui; HU Rong-Jiang; ZHU Hai-Dong; CEN Ling; CHEN Ke-Liang; LI Xiang-Qing; CHEN Tao; HUA Hui

Chinese Physics C> 2001, Vol. 25> Issue(5) : 394-398

In-beam Measurement of β⁺ Delay Particle Decay on RIBLL

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China2. Department of Technical Physics, Beijing University, Beijing 100871, China

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Abstract：
The in beam measurement of β⁺ delay α decay of ²⁰Na on the Radioactive Ion Beam Line in Lanzhou(RIBLL) is reported. The radioactive ion ²⁰Na was identified in beam by means of TOF-ΔE method. The implantation depth of the secondary beam in the detectors was optimized by a group of degraders with different thickness. The procedure of data acquisition was divided into two stages, i.e., in beam and off beam stage, to record the RIB and the β⁺ delay α particles respectively. Four resonant energy levels, 2.69, 3.09, 4.74, and 5.54MeV of ²⁰Ne, have been observed with their relative amplitudes of 100, 4.15, 1.10 and 15.2, respectively. The half life of ²⁰Na—→β⁺ ²⁰Ne*→¹⁶O+α decay is preliminarily determined to be 459ms by using a time scaler combined with a pulse generator. The results are in good agreement with the ones of other group.

References

[1]

Mueller A C,Bazin Detal.Z Phys.,1988,330:63-682 Arnold M.Nucl.Phys.,1992,A538:493c-504c3 XIAO Zhi Gang,ZHANG Bao Guo et al.Nuclear Techniques,2000,23:1(in Chinese)(肖志刚,张保国等.核技术,2000,23:1)4 Anne R,Bazin D et al.Ganil Annual Report,1989,33-345 Kubono S et al.Phys.Rev.,1992,C46:3616 Dufour M.Descouvemont P,Baye D.Phys.Rev.,1994,C50:795-8017 ZHAN Wen Long,GUO Zhong Yan et al.Science in China,1999,20:77-84(inChinese)(詹文龙,郭忠言等.中国科学,1999,20:77-84)8 LI Jia Xing,ZHAN Wen Long,GUO Zhong Yan et al.High Energy Phys.and Nucl.Phys.,1999,23:231-236(in Chinese)(李加兴,詹文龙,郭忠言等.高能物理与核物理,1999,23:231-236)9 GUO Zhong Yan,ZHAN Wen Long,SUN Zhi Yu et al.High Energy Phys.and Nucl.Phys.,1999,23:237-243(in Chinese)(郭忠言,詹文龙,孙志宇等.高能物理与核物理,1999,23:237-243)10 ZHAO You Xiong,ZHAN Wen Long,GUO Zhong Yan et al.Nucl.Instr.Meth.,1995,A355:46411 DONG Ju Xin,JIA Tian Cheng,TANG Jing Yu et al.Nuclear Electronics and Detection Technology,1999,19:280(in Chinese)(董菊心,贾天成,唐靖宇等.核电子学与核探测技术,1999,19:280)12 Clifford E T H,Hagberg E et al.Nucl.Phys.,1989,A493:293-32213 Ajzenberg-Selove F.Nucl.Phys.,1987,A475:1-198

[1]	M.P.Stockli . Measuring and Analyzing Transverse Low-Energy Ion Beam Emittances. Chinese Physics C, 2007, 31(S1): 182-186.
[2]	ZHANG Xue-Heng , SUN Zhi-Yu , HU Zheng-Guo , XU Zhi-Guo , XU Hu-Shan , WANG Meng , MAO Rui-Shi , FU Fen , ZHANG Hong-Bin , HUANG Tian-Heng , ZHENG Chuan , GAO Hui , , , , . A Transverse Field Gas Ionization Chamber Performed at RIBLL. Chinese Physics C, 2007, 31(4): 384-387.
[3]	XU Shu-Wei , XIE Yuan-Xiang , LI Zhan-Kui , XU Fu-Rong , LIU Hong-Liang . β-Delayed Proton Decays of ¹³³Sm and ¹⁴⁹Yb. Chinese Physics C, 2006, 30(11): 1067-1070.
[4]	LOU Jian-Ling , LI Zhi-Huan , YE Yan-Lin , CAO Zhong-Xin , JIANG Dong-Xing , HUA Hui , ZHENG Tao , LI Xiang-Qing , GE Yu-Cheng , WU Cui-E , LI Chen , PANG Dan-Yang , LU Fei , FAN Feng-Ying , MA Li-Ying . Property Optimization and Test for β-Delayed Neutron Detection Array. Chinese Physics C, 2006, 30(S2): 205-207.
[5]	XU Shu-Wei , LI Zhan-Kui , XIE Yuan-Xiang , GUO Wen-Tao . β-Delayed Proton Decays in the Rare-Earth Region Near Drip Line. Chinese Physics C, 2006, 30(S2): 131-135.
[6]	XU Hua-Gen , XU Hu-Shan , LI Wen-Fei , ZHAN Wen-Long , XIAO Guo-Qing , SUN Zhi-Yu , GUO Zhong-Yan , LI Song-Lin , DUAN Li-Min , WANG Hong-Wei , XIAO Zhi-Gang , HUANG Wen-Xue , LI C , , , . Monte Carlo Study of the Neutron Detection Wall at RIBLLⅡ in HIRFL-CSR. Chinese Physics C, 2006, 30(1): 57-61.
[7]	LI Jia-Cai , ZHANG Liang-Sheng , HU Chun-Liang , WU Yuan-Ming , CUI Xiang-Zong , LIU Zheng-Quan , ZHANG Shao-Ping , ZHOU Bao-Qing , ZHENG Lin-Sheng . Design and Performance Measurement of the 1GeV/c Multiparticle Magnetic Spectrometer in the BEPC-LINAC Test Beam. Chinese Physics C, 2005, 29(1): 55-61.
[8]	XU Shu-Wei , LI Zhang-Kui , XIE Yuan-Xiang , HUANG Wen-Xue , SHU Neng-Chuan , CHEN Yong-Shou , XU Fu-Rong , WANG Kun . β-Delayed Proton Decays Near the Proton Drip Line. Chinese Physics C, 2004, 28(S1): 1-4.
[9]	WANG Xu-Dong , XU Shu-Wei , LI Zhan-Kui , XIE Yuan-Xiang , WU Zhe-Ying , XU Fu-Rong , GUO Bin , LENG Chang-Geng , WANG Chun-Fang , YU Yong . β-Delayed Proton Decay of ⁹³Pd. Chinese Physics C, 2003, 27(4): 309-312.
[10]	GUO Zhong-Yan , XIAO Guo-Qing , ZHAN Wen-Long , XU Hu-Shan , SUN Zhi-Yu , LI Jia-Xing , WANG Meng , CHEN Zhi-Qiang , MAO Rui-Shi , WANG Wu-Sheng , BAI Jie , HU Zheng-Guo , CHEN Li-Xin , LI Chen . Development of Beam Diagnosis at RIBLL. Chinese Physics C, 2003, 27(2): 158-162.
[11]	WANG Shu-Hong , YE Qiang , CAO Jian-She , MA Li , LIU Yu-Cheng , LE Qi , PEI Guo-Xi , ZHANG Jia-Fei . Emittance Measurement by Multi-Changing Focusing Strength. Chinese Physics C, 2002, 26(11): 1184-1188.
[12]	LIU Yong-Ying , WANG Su-Fang , DUAN Li-Min , JIN Gen-Ming , ZHU Hai-Dong , ZHANG Bao-Guo , WEN Wan-Xin , LI Zu-Yu , HE Zhi-Yong , WANG Hong-Wei , XIAO Zhi-Gang , WU He-Yu , WEI Zhi-Yong . Emission Time of Light Particles with Respect to Measurement Angle. Chinese Physics C, 2001, 25(11): 1065-1070.
[13]	WANG Hong-Wei , WU He-Yu , JIN Gen-Ming , ZHANG Bao-Guo , XIAO Zhi-Gang , DUAN Li-Min , WEI Zhi-Yong , LI Zu-Yu , LU Zhao-Hui , LIU Yong-Ying , CHEN Ke-Liang , HU Rong-Jiang , ZHU Hai-Dong , CEN Ling , WANG Su-Fang , LI Xiang-Qing , CHEN Tao , HUA Hui . Measurement of β⁺ Delayed α Decay of ²⁰Na. Chinese Physics C, 2001, 25(8): 731-735.
[14]	PAN Qiang-Yan , ZHOU Xiao-Hong , ZHANG Yu-Hu , GUO Ying-Xiang , XU Yan-Bing , LEI Xiang-Guo , HUANG Wen-Xue , WANG Xu-Dong , HE Jian-Jun , FENG Xi-Chen , Xiao Guo-Qing , GUO Zhong-Yan , LI Jia-Xing , YUAN Shuang-Gui , LUO Yi-Xiao . Experimental Methods of Nuclear Spectroscopic Study at RIBLL. Chinese Physics C, 2000, 24(S1): 108-112.
[15]	CHEN ZhiQiang , WANG Meng , ZHAN WenLong , GUO ZhongYan , XIAO GuoQing , WANG JinChuan , WANG QuanJin , NING ZhenJiang , LI JiaXing , WANG JianFeng , ZHENG Rui , DONG XiaoNan . Gas Ionization Chamber for Particle Identification at RIBLL. Chinese Physics C, 2000, 24(9): 858-863.
[16]	Sun Zhiyu , Zhan Wenlong , Guo Zhongyan , Xiao Guoqing , Jiang Shanhong , Li Jiaxing , Wang Jinchuan , Meng Xiangwei , Zhang Wansheng , Qin Lijun , Wang Quanjin . Control System of RIBLL. Chinese Physics C, 1999, 23(3): 298-301.
[17]	Li Jiaxing , Zhan Wenlong , Guo Zhongyan , Sun Zhiyu , Xiao Guoqing , Wang Jinchuan , Meng Xiangwei , Jiang Shanhong , Qin Lijun , Zhang Wansheng , Wang Quanjin . TOF Measurement in RIBLL. Chinese Physics C, 1999, 23(3): 231-236.
[18]	Guo Zhongyan , Zhan Wenlong , Sun Zhiyu , Xiao Guoqing , Jiang Shanhong , Li Jiaxing , Meng Xiangwei , Wang Jinchuan , Zhang Wansheng , Qin Lijun , Wang Quanjin . RIBLL Beam Diagnostics. Chinese Physics C, 1999, 23(3): 237-243.
[19]	Guo Zhongyan , Zhan Wenlong , Zhou Jianqun , Zhao Youxiong , Wang Jinchuan , Luo Yongfeng , Liu Guanhua , Lei Huaihong , Zhang Wansheng , Qi Zhong , Lin Yuangen . Experimental Setup at RIBLL1. Chinese Physics C, 1996, 20(6): 491-497.
[20]	Guo Zhongyan , Zhan Wenlong , Zhou Jianqun , Zao Youxiong , Wang Jinchuan , Luo Yongfeng , Liu Guanhua , Lei Huihong , Zhang Wansheng , Qi Zhong , Lin Yuangen . RIBLL1 Terminal Experimental Setup. Chinese Physics C, 1996, 20(S3): 225-232.

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XIAO Zhi-Gang, WANG Hong-Wei, WU He-Yu, LIU Yong-Ying, JIN Gen-Ming, ZHANG Bao-Guo, LI Zu-Yu, DUAN Li-Min, WEI Zhi-Yong, WANG Su-Fang, LU Zhao-Hui, HU Rong-Jiang, ZHU Hai-Dong, CEN Ling, CHEN Ke-Liang, LI Xiang-Qing, CHEN Tao and HUA Hui. In-beam Measurement of β⁺ Delay Particle Decay on RIBLL[J]. Chinese Physics C, 2001, 25(5): 394-398.

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Received: 2000-04-13
Revised: 1900-01-01

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

In-beam Measurement of β⁺ Delay Particle Decay on RIBLL

Corresponding author: XIAO Zhi-Gang,

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China2. Department of Technical Physics, Beijing University, Beijing 100871, China

Received Date: 2000-04-13

Accepted Date: 1900-01-01

Available Online: 2001-05-05

Abstract: The in beam measurement of β⁺ delay α decay of ²⁰Na on the Radioactive Ion Beam Line in Lanzhou(RIBLL) is reported. The radioactive ion ²⁰Na was identified in beam by means of TOF-ΔE method. The implantation depth of the secondary beam in the detectors was optimized by a group of degraders with different thickness. The procedure of data acquisition was divided into two stages, i.e., in beam and off beam stage, to record the RIB and the β⁺ delay α particles respectively. Four resonant energy levels, 2.69, 3.09, 4.74, and 5.54MeV of ²⁰Ne, have been observed with their relative amplitudes of 100, 4.15, 1.10 and 15.2, respectively. The half life of ²⁰Na—→β⁺ ²⁰Ne*→¹⁶O+α decay is preliminarily determined to be 459ms by using a time scaler combined with a pulse generator. The results are in good agreement with the ones of other group.

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In-beam Measurement of β+ Delay Particle Decay on RIBLL

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In-beam Measurement of β⁺ Delay Particle Decay on RIBLL

In-beam Measurement of β⁺ Delay Particle Decay on RIBLL