Detector optimization to reduce the cosmogenic neutron backgrounds in the TAO experiment
Detector optimization to reduce the cosmogenic neutron backgrounds in the TAO experiment
复制标题
探测器优化以减少 TAO 实验中的宇宙中子背景
DOI:
10.1088/1748-0221/17/09/p09024
复制
发表时间:
2022-06
影响因子:
1.3
通讯作者:
Liang Zhan
中科院分区:
文献类型:
--
作者:
Ruhui Li;Guofu Cao;Jun Cao;Yichen Li;Yifang Wang;Zhimin Wang;Liang Zhan
Abstract. Short-baseline reactor antineutrino experiments with shallow overburden usually have large cosmogenic neutron backgrounds. The Taishan Antineutrino Observatory (TAO) is a ton-level liquid scintillator detector located at about 30 m from a core of the Taishan Nuclear Power Plant. It will measure the reactor antineutrino spectrum with high precision and high energy resolution to provide a reference spectrum for JUNO and other reactor antineutrino experiments, and provide a benchmark measurement to test nuclear databases. Background is one of the critical concerns of TAO since the overburden is just 10meter-water-equivalent. The cosmogenic neutron background was estimated to be ∼10% of signals[1]. With detailed Monte Carlo simulations, we propose several measures in this work to reduce the neutron backgrounds, including doping Gadolinium in the buffer liquid, adding a polyethylene layer above the bottom lead shield, and optimization of the veto strategy. With these improvements, the neutron background-to-signal ratio can be reduced to ∼2%, and might be further suppressed with pulse shape discrimination.
登录
查看更多内容
DOI:
10.1063/1.4826754
发表时间:
2013-11
期刊:
ArXiv
影响因子:
--
作者:
J. Ling
通讯作者:
J. Ling
影响因子:
8.6
作者:
An, F. P.;Bai, J. Z.;Zou, J. H.
通讯作者:
Zou, J. H.
DOI:
--
发表时间:
2015-08
期刊:
arXiv: Instrumentation and Detectors
影响因子:
--
作者:
T. Adam;F. An;G. An;Q. An;N. Anfimov;V. Antonelli;G. Baccolo;M. Baldoncini;E. Baussan;
通讯作者:
T. Adam;F. An;G. An;Q. An;N. Anfimov;V. Antonelli;G. Baccolo;M. Baldoncini;E. Baussan;
影响因子:
5
作者:
A. Serebrov;R. Samoilov;V. Ivochkin;A. Fomin;V. Zinoviev;P. Neustroev;V. Golovtsov;S. Volkov;A. Chernyj;O. Zherebtsov;M. Chaikovskii;A. Petelin;A. Izhutov;A. Tuzov;S. Sazontov;M. Gromov;V. Afanasiev;M. Zaytsev;A. Gerasimov;V. Fedorov
通讯作者:
A. Serebrov;R. Samoilov;V. Ivochkin;A. Fomin;V. Zinoviev;P. Neustroev;V. Golovtsov;S. Volkov;A. Chernyj;O. Zherebtsov;M. Chaikovskii;A. Petelin;A. Izhutov;A. Tuzov;S. Sazontov;M. Gromov;V. Afanasiev;M. Zaytsev;A. Gerasimov;V. Fedorov
影响因子:
56.9
作者:
COWAN, CL;REINES, F;MCGUIRE, AD
通讯作者:
MCGUIRE, AD