推动闪烁体探测器在高计数率极限下用于苛刻中子俘获实验
仪器与探测器
2023-11-03 v1 核实验
摘要
当结合飞行时间与总能量探测器技术准确确定中子俘获截面时，关键方面之一是对与测量装置相关的系统不确定度的表征与控制。在本工作中，我们探究了与严苛计数率条件相关的最显著影响：死时间与堆积效应。若未妥善处理，这两种效应均会导致中子截面确定中的大系统不确定度和偏差。在 CERN n_TOF 设施开展的大多数中子俘获测量中，所选探测器为 CD 液体型，形式或为大型体积池，或为近期投用的 sTED 探测器阵列（由体积更小的模块构成）。为考虑上述效应，我们引入这些探测器的蒙特卡洛模型，以模拟类似于 CERN n_TOF 20~m 飞行路径垂直测量站出现的严苛计数率条件。模型参数通过与同一设施 2022 年实验周期所取实验数据比对提取。我们提出一种新方法，对这些快探测器同时考虑死时间与堆积效应，并检验其对来自 Au(,) 的实验数据的适用性，包括作为中子截面测量归一化重要组分的饱和 4.9~eV 共振。
引用
@article{arxiv.2311.01365,
title = {Pushing the high count rate limits of scintillation detectors for challenging neutron-capture experiments},
author = {J. Balibrea Correa and J. Lerendegui-Marco and V. Babiano-Suarez and C. Domingo-Pardo and I. Ladarescu and A. Tarifeño-Saldivia and V. Alcayne and D. Cano-Ott and E. González-Romero and T. Martínez and E. Mendoza and A. Pérez de Rada and J. Plaza del Olmo and A. Sánchez-Caballero and A. Casanovas and F. Calviño and S. Valenta and O. Aberle and S. Altieri and S. Amaducci and J. Andrzejewski and M. Bacak and C. Beltrami and S. Bennett and A. P. Bernardes and E. Berthoumieux and R. Beyer and M. Boromiza and D. Bosnar and M. Caamaño and M. Calviani and D. M. Castelluccio and F. Cerutti and G. Cescutti and S. Chasapoglou and E. Chiaveri and P. Colombetti and N. Colonna and P. Console Camprini and G. Cortés and M. A. Cortés-Giraldo and L. Cosentino and S. Cristallo and S. Dellmann and M. Di Castro and S. Di Maria and M. Diakaki and M. Dietz and R. Dressler and E. Dupont and I. Durán and Z. Eleme and S. Fargier and B. Fernández and B. Fernández-Domínguez and P. Finocchiaro and S. Fiore and V. Furman and F. García-Infantes and A. Gawlik-Ramikega and G. Gervino and S. Gilardoni and C. Guerrero and F. Gunsing and C. Gustavino and J. Heyse and W. Hillman and D. G. Jenkins and E. Jericha and A. Junghans and Y. Kadi and K. Kaperoni and G. Kaur and A. Kimura and I. Knapová and M. Kokkoris and Y. Kopatch and M. Krtička and N. Kyritsis and C. Lederer-Woods and G. Lerner and A. Manna and A. Masi and C. Massimi and P. Mastinu and M. Mastromarco and E. A. Maugeri and A. Mazzone and A. Mengoni and V. Michalopoulou and P. M. Milazzo and R. Mucciola and F. Murtas and E. Musacchio-Gonzalez and A. Musumarra and A. Negret and P. Pérez-Maroto and N. Patronis and J. A. Pavón-Rodríguez and M. G. Pellegriti and J. Perkowski and C. Petrone and E. Pirovano and S. Pomp and I. Porras and J. Praena and J. M. Quesada and R. Reifarth and D. Rochman and Y. Romanets and C. Rubbia and M. Sabaté-Gilarte and P. Schillebeeckx and D. Schumann and A. Sekhar and A. G. Smith and N. V. Sosnin and M. E. Stamati and A. Sturniolo and G. Tagliente and D. Tarrío and P. Torres-Sánchez and E. Vagena and V. Variale and P. Vaz and G. Vecchio and D. Vescovi and V. Vlachoudis and R. Vlastou and A. Wallner and P. J. Woods and T. Wright and R. Zarrella and P. Žugec},
journal= {arXiv preprint arXiv:2311.01365},
year = {2023}
}