Particle identification using digital pulse shape discrimination in a nTD silicon detector with a 1 GHz sampling digitizer
Particle identification using digital pulse shape discrimination in a nTD silicon detector with a 1 GHz sampling digitizer
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DOI：
10.1016/j.nima.2018.03.052
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发表时间：
2018-04
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影响因子：
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通讯作者：
K. Mahata;A. Shrivastava;J. Gore;S. Pandit;V. Parkar;K. Ramachandran;A. Kumar;S. Gupta;P. Patale
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文献类型：
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作者：
K. Mahata;A. Shrivastava;J. Gore;S. Pandit;V. Parkar;K. Ramachandran;A. Kumar;S. Gupta;P. Patale
在 500 μm 厚的中子嬗变掺杂 (nTD) 硅探测器中，使用数字脉冲形状分析进行了粒子识别的束内测试实验，该探测器配有自主开发的基于 FPGA 的 12 位分辨率、1 GHz 采样数字化仪。 nTD Si 探测器用于低场注入装置中，用于检测 ~ 5 MeV/A 7 Li 和 12 C 束在不同目标上反应中产生的轻重离子。脉冲高度、上升时间和电流最大值是从高带宽电荷和电流敏感前置放大器的数字化电荷输出中获得的。在轻重离子的情况下，仅使用数字化电荷输出就可以实现良好的同位素分离。该装置可用于涉及库仑势垒能量附近的轻重离子的核反应中的带电粒子光谱。
In beam test experiments have been carried out for particle identification using digital pulse shape analysis in a 500 μ m thick Neutron Transmutation Doped (nTD) silicon detector with an indigenously developed FPGA based 12 bit resolution, 1 GHz sampling digitizer. The nTD Si detector was used in a low-field injection setup to detect light heavy-ions produced in reactions of∼ 5 MeV/A 7 Li and 12 C beams on different targets. Pulse height, rise time and current maximum have been obtained from the digitized charge output of a high bandwidth charge and current sensitive pre-amplifier. Good isotopic separation have been achieved using only the digitized charge output in case of light heavy-ions. The setup can be used for charged particle spectroscopy in nuclear reactions involving light heavy-ions around the Coulomb barrier energies.