Charge trapping correction and energy performance of the Majorana Demonstrator
Charge trapping correction and energy performance of the Majorana Demonstrator
复制标题
马约拉纳演示器的电荷捕获校正和能量性能
DOI:
10.1103/physrevc.107.045503
复制
发表时间:
2023
影响因子:
3.1
通讯作者:
Caldwell, T. S.
中科院分区:
文献类型:
--
作者:
Arnquist, I. J.;Avignone, F. T.;Barabash, A. S.;Barton, C. J.;Bhimani, K. H.;Blalock, E.;Bos, B.;Busch, M.;Buuck, M.;Caldwell, T. S.
-type point contact (PPC) high-purity germanium detectors are an important technology in astroparticle and nuclear physics due to their superb energy resolution, low noise, and pulse shape discrimination capabilities. Analysis of data from theMajorana Demonstrator, a neutrinoless double-decay experiment deploying PPC detectors enriched in, has led to several novel improvements in the analysis of PPC signals. In this work we discuss charge trapping in PPC detectors and its effect on energy resolution. Small dislocations or impurities in the crystal lattice result in trapping of charge carriers from an ionization event of interest, attenuating the signal, and degrading the measured energy. We present a modified digital pole-zero correction to the signal energy estimation that counters the effects of charge trapping and improves the energy resolutionof theMajorana Demonstratorby approximatelyto around 2.4 keV full width at half-maximum at 2039 keV, thevalue. An alternative approach achieving similar resolution enhancement is also presented.
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DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
E. Aguayo;M. Busch;R. Daniels;J. Fast;M. Green;D. J. Reid
通讯作者:
D. J. Reid
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
E. Hull;E. Jackson;C. Lister;R. Pehl
通讯作者:
R. Pehl
影响因子:
3.1
作者:
F. T. Avignone III;S. Elliott
通讯作者:
S. Elliott
影响因子:
64.8
作者:
CUORE Collaboration
通讯作者:
CUORE Collaboration
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
J. Kephart;C. Aalseth;H. Miley
通讯作者:
H. Miley