Development of a semi-cylindrical time projection chamber prototype for () charge exchange reaction experiment

Zhixuan He; Meng Li; Wenjuan Bu; Chaoyuan Xiao; Xianglun Wei; Yuansheng Yang; Zhi Qin; Shanhaowei He; Tianli Qiu; Peng Ma; Chengui Lu; Limin Duan; Bitao Hu; Yi Zhang; Herun Yang

doi:10.1140/epjc/s10052-023-12170-x

2023 Impact factor 4.2

Particles and Fields

Open Access

Eur. Phys. J. C (2023) 83: 1092
https://doi.org/10.1140/epjc/s10052-023-12170-x

Regular Article - Experimental Physics

Development of a semi-cylindrical time projection chamber prototype for ( $^{3} He, t$ $^{3}{\textrm{He}},t$ ) charge exchange reaction experiment

Zhixuan He¹, Meng Li²^b, Wenjuan Bu¹, Chaoyuan Xiao³, Xianglun Wei⁴^,5, Yuansheng Yang⁴^,5, Zhi Qin⁶, Shanhaowei He¹, Tianli Qiu⁴^,5, Peng Ma⁴^,5, Chengui Lu⁴^,5, Limin Duan⁴^,5, Bitao Hu¹, Yi Zhang¹ and Herun Yang⁴^,5^r

¹ School of Nuclear Science and Technology, Lanzhou University, 730000, Lanzhou, Gansu, China
² Department of Oncology, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China
³ China Nuclear Power Technology Research Institute Co., Ltd., 518000, Shenzhen, Guangdong, China
⁴ Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou, Gansu, China
⁵ School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 100049, Beijing, China
⁶ Department of Physics, Tsinghua University, 100084, Beijing, China

^b limeng8073@csu.edu.cn
^r yanghr@impcas.ac.cn

Received: 12 July 2023
Accepted: 19 October 2023
Published online: 30 November 2023

Abstract

The charge exchange (CE) reaction is an effective probe to study the structure of atomic nuclei in the isospin dimension, which has been studied for decades. To expand the range of nuclei studied by CE reactions to a wider range and research the structure characteristics of unstable nuclei, including the isospin symmetry, spin-isospin excitation, and nuclear symmetry energy, a semi-cylindrical time projection chamber (scTPC) prototype was designed and constructed to probe ( $^{3}$ $^{\textrm{3}}$ He,t) CE reactions in inverse kinematics. The 266 nm UV laser was used to achieve electron-drift-velocity calibration. The scTPC has an energy resolution (FWHM) of 5.6% for $α$ $\alpha$ particles emitted by $^{241}$ $^{\textrm{241}}$ Am radioactive source. The position resolution of scTPC is described by the residual method. The spatial resolution on the pad plane is 409 $μ$ $\upmu$ m. And the position resolution in the drift direction is 326 $μ$ $\upmu$ m, equivalent to an angular resolution of 0.4 $^{\circ}$ $^\circ$ . These performances suggest that the scTPC can measure $Δ E$ $\Delta E$ and particle tracks precisely. The successful development of the scTPC prototype provides better conditions for the next step of experimental data analysis and processing.

© The Author(s) 2023

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