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arXiv 1902.07210physics.ins-detnucl-ex
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非线性效应对CsI(Tl)scintillator晶体中轻带电粒子光输出定标的影响

Non-linearity effects on the light-output calibration of light charged particles in CsI(Tl) scintillator crystals

D. Dell'Aquila, S. Sweany, K. W. Brown, Z. Chajecki, W. G. Lynch, F. C. E. Teh, C. -Y. Tsang, M. B. Tsang, K. Zhu, C. Anderson, A. Anthony, S. Barlini, J. Barne… 展开作者

D. Dell'Aquila, S. Sweany, K. W. Brown, Z. Chajecki, W. G. Lynch, F. C. E. Teh, C. -Y. Tsang, M. B. Tsang, K. Zhu, C. Anderson, A. Anthony, S. Barlini, J. Barney, A. Camaiani, G. Jhang, J. Crosby, J. Estee, M. Ghazali, F. Guan, O. Khanal, S. Kodali, I. Lombardo, J. Manfredi, L. Morelli, P. Morfouace, C. Niu, G. Verde

摘要:

本文研究了轻离子(Z ≤ 4)在CsI(Tl)晶体中产生的光输出。能量-光校准数据集是用最近升级的高分辨率阵列(HiRA 10)中的10 cm晶体获得的。我们使用质子反冲数据从40,48 Ca + CH 2在28 MeV/u,56.6 MeV/u,39 MeV/u和139.8 MeV/u和数据从一个专门的实验与直接低能束。我们还使用了139.8MeV/u的40,48 Ca + 58,64 Ni,112,124 Sn碰撞反应中p,d,t粒子的穿通点。非线性,特别是从Tl掺杂和CsI晶体中的光收集效率,被发现显着影响的光输出,因此校准的光带电粒子,特别是氢同位素的检测器响应。一个新的经验参数化的氢光输出,L(E,Z=1,A),提出了解释所观察到的效果。结果被发现是一致的所有48 CsI(Tl)晶体在集群的12个HiRA 10望远镜。

英文摘要:

The light output produced by light ions (Z<=4) in CsI(Tl) crystals is studied over a wide range of detected energies (E<=300 MeV). Energy-light calibration data sets are obtained with the 10 cm crystals in the recently upgraded High-Resolution Array (HiRA10). We use proton recoil data from 40,48Ca + CH2 at 28 MeV/u, 56.6 MeV/u, 39 MeV/u and 139.8 MeV/u and data from a dedicated experiment with direct low-energy beams. We also use the punch through points of p, d, and t particles from 40,48Ca + 58,64Ni, 112,124Sn collisions reactions at 139.8 MeV/u. Non-linearities, arising in particular from Tl doping and light collection efficiency in the CsI crystals, are found to significantly affect the light output and therefore the calibration of the detector response for light charged particles, especially the hydrogen isotopes. A new empirical parametrization of the hydrogen light output, L(E,Z=1,A), is proposed to account for the observed effects. Results are found to be consistent for all 48 CsI(Tl) crystals in a cluster of 12 HiRA10 telescopes.

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