Chinese Physics C > 2016, Vol. 40 > Issue(11): 116004 DOI: 10.1088/1674-1137/40/11/116004

A multilayer ΔE-E_Rtelescope for breakup reactions at energies around the Coulomb barrier

1.
China Institute of Atomic Energy, Beijing 102413, China
2.
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
3.
School of Physics and Nuclear Energy Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract：
The breakup reactions of weakly-bound nuclei at energies around the Coulomb barrier and the corresponding coupling effect on the other reaction channels are hot topics nowadays. To overcome the difficulty in identifying both heavier and lighter fragments simultaneously, a new kind of ionization-chamber based detector telescope has been designed and manufactured. It consists of a PCB ionization chamber and three different thickness silicon detectors installed inside the chamber, which form a multilayer Δ E- E _Rtelescope. The working conditions were surveyed by using an αsource. An in-beam test experiment shows that the detector has good particle identification for heavy particles like ¹⁷F and ¹⁶O as well as light particles like protons and alpha particles. The measured quasi-elastic scattering angular distribution and the related discussions for ¹⁷F+ ²⁰⁸Pb are presented.
- breakup reaction,
- weakly-bound nuclei,
- particle identification,
- E-ER telescope,
- grid ionization chamber

References

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Nan-Ru Ma, Cheng-Jian Lin, Jian-Song Wang, Lei Yang, Dong-Xi Wang, Lei Zheng, Shi-Wei Xu, Li-Jie Sun, Hui-Ming Jia, Jun-Bing Ma, Peng Ma, Shi-Lun Jin, Zhen Bai, Yan-Yun Yang, Xin-Xing Xu, Gao-Long Zhang, Feng Yang, Jian-Jun He, Huan-Qiao Zhang and Zu-Hua Liu. A multilayer Δ E- E _Rtelescope for breakup reactions at energies around the Coulomb barrier[J]. Chinese Physics C, 2016, 40(11): 116004. doi: 10.1088/1674-1137/40/11/116004

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Received: 2016-05-13

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Supported by National Key Basic Research Development Program of China (2013CB834404) and National Natural Science Foundation of China (11375268, 11475263, U1432127, U1432246)

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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

A multilayer ΔE-E_Rtelescope for breakup reactions at energies around the Coulomb barrier

Corresponding author:Cheng-Jian Lin,

1. China Institute of Atomic Energy, Beijing 102413, China
2. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
3. School of Physics and Nuclear Energy Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

Received Date:2016-05-13
Available Online:2016-11-05

Fund Project:Supported by National Key Basic Research Development Program of China (2013CB834404) and National Natural Science Foundation of China (11375268, 11475263, U1432127, U1432246)

Abstract:The breakup reactions of weakly-bound nuclei at energies around the Coulomb barrier and the corresponding coupling effect on the other reaction channels are hot topics nowadays. To overcome the difficulty in identifying both heavier and lighter fragments simultaneously, a new kind of ionization-chamber based detector telescope has been designed and manufactured. It consists of a PCB ionization chamber and three different thickness silicon detectors installed inside the chamber, which form a multilayer ΔE-E_Rtelescope. The working conditions were surveyed by using anαsource. An in-beam test experiment shows that the detector has good particle identification for heavy particles like¹⁷F and¹⁶O as well as light particles like protons and alpha particles. The measured quasi-elastic scattering angular distribution and the related discussions for¹⁷F+²⁰⁸Pb are presented.