分类： 物理学 >> 核物理学 提交时间： 2025-04-27
Wang, Mr. Haorui
Lin, Dr. Chengjian (Nuclear physics)
Ma, Dr. Nanru
Yang, Dr. Lei
Yang, Dr. Feng
Jia, Dr. Huiming
Wen, Mr. Peiwei
Luo, Mr. Tianpeng
Chang, Mr. Chang
Duan, Ms. Hairui
Zhu, Ms. Songxian
Huang, Mr. Zhijie
Yin, Mr. Cheng
Fan, Mr. Zerui
Fu, Mr. Lingyi
Li, Ms. Huiyan
Mo, Mr. Shaowen
Lu, Mr. Hao
Wu, Mr. Chenxu
摘要： A heavy-ion time-of-flight spectrometer called HiToF with magnet focusing accomplished by quadrupole triplet lens has been constructed at Beijing Tandem Accelerator National Laboratory, mainly for studies of multi-nucleon transfer reactions at energies near the Coulomb barrier. The spectrometer is equipped a rotating chamber with a diameter of 40 cm and can be rotated in a large angular range from -40° to 160°. The length from target to the focal plane is 2.7 m, enabling high-precision time-of-flight measurements by two micro-channel-plate detectors with 1.9 m apart and typical time resolution of 120 ps. A multi-sampling position-sensitive ionization chamber for ΔE-E measurement is placed on the focal plane, which offers ΔZ/Z resolution of 1/50. The setup provides a maximum solid angle ΔΩ = 20 msr. An experiment of 32S + 90,94Zr at the beam energy of 135 MeV was performed to test the performance. The projectile-like ions were identified clearly with the mass resolution σ = 0.2 amu. Results show that the HiToF spectrometer is a powerful setup for studying the heavy-ion reaction mechanisms at low-energies.
分类： 物理学 >> 核物理学 提交时间： 2025-02-28
Wang, Mr. Haorui
Lin, Dr. Chengjian (Nuclear physics)
Ma, Dr. Nanru
Yang, Dr. Lei
Yang, Dr. Feng
Jia, Dr. Huiming
Wen, Mr. Peiwei
Luo, Mr. Tianpeng
Chang, Mr. Chang
Duan, Ms. Hairui
Zhu, Ms. Songxian
Huang, Mr. Zhijie
Yin, Mr. Cheng
Fan, Mr. Zerui
Fu, Mr. Lingyi
Li, Ms. Huiyan
Mo, Mr. Shaowen
Lu, Mr. Hao
Wu, Mr. Chenxu
摘要： A heavy-ion time-of-flight spectrometer called HiToF with magnet focusing accomplished by quadrupole triplet lens has been constructed at Beijing Tandem Accelerator National Laboratory, mainly for studies of multi-nucleon transfer reactions at energies near the Coulomb barrier. The spectrometer is equipped a rotating chamber with a diameter of 40 cm and can be rotated in a large angular range from -40° to 160°. The length from target to the focal plane is 2.7 m, enabling high-precision time-of-flight measurements by two micro-channel-plate detectors with 1.9 m apart and typical time resolution of 120 ps. A multi-sampling position-sensitive ionization chamber for ΔE-E measurement is placed on the focal plane, which offers ΔZ/Z resolution of 1/50. The setup provides a maximum solid angle ΔΩ = 20 msr. An experiment of 32S + 90,94Zr at the beam energy of 135 MeV was performed to test the performance. The projectile-like ions were identified clearly with the mass resolution σ = 0.2 amu. Results show that the HiToF spectrometer is a powerful setup for studying the mechanism of heavy-ion reactions at low-energies.
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