scholarly journals Neutron to Gamma Pulse Shape Discrimination in Liquid Argon Detectors with High Quantum Effciency Photomultiplier Tubes

2012 ◽  
Vol 37 ◽  
pp. 1113-1121 ◽  
Author(s):  
R. Acciarri ◽  
N. Canci ◽  
F. Cavanna ◽  
P. Kryczynski ◽  
L. Pandola ◽  
...  
Keyword(s):  
Pulse Shape ◽  
Liquid Argon ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination ◽  
Photomultiplier Tubes ◽  
High Quantum

scholarly journals Backgrounds and pulse shape discrimination in the ArDM liquid argon TPC

2018 ◽  
Vol 2018 (12) ◽  
pp. 011-011 ◽  
Author(s):  
J. Calvo ◽  
C. Cantini ◽  
P. Crivelli ◽  
M. Daniel ◽  
S. Di Luise ◽  
...  
Keyword(s):  
Pulse Shape ◽  
Liquid Argon ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination

scholarly journals Pulse-shape discrimination against low-energy Ar-39 beta decays in liquid argon with 4.5 tonne-years of DEAP-3600 data

2021 ◽  
Vol 81 (9) ◽  
Author(s):  
P. Adhikari ◽  
R. Ajaj ◽  
M. Alpízar-Venegas ◽  
P.-A. Amaudruz ◽  
D. J. Auty ◽  
...  
Keyword(s):  
Likelihood Ratio ◽  
Pulse Shape ◽  
Time Window ◽  
Liquid Argon ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination ◽  
Scintillation Signal ◽  
Log Likelihood ◽  
Log Likelihood Ratio ◽  
Beta Decays

AbstractThe DEAP-3600 detector searches for the scintillation signal from dark matter particles scattering on a 3.3 tonne liquid argon target. The largest background comes from $$^{39}\text{ Ar }$$ 39 Ar beta decays and is suppressed using pulse-shape discrimination (PSD). We use two types of PSD estimator: the prompt-fraction, which considers the fraction of the scintillation signal in a narrow and a wide time window around the event peak, and the log-likelihood-ratio, which compares the observed photon arrival times to a signal and a background model. We furthermore use two algorithms to determine the number of photons detected at a given time: (1) simply dividing the charge of each PMT pulse by the mean single-photoelectron charge, and (2) a likelihood analysis that considers the probability to detect a certain number of photons at a given time, based on a model for the scintillation pulse shape and for afterpulsing in the light detectors. The prompt-fraction performs approximately as well as the log-likelihood-ratio PSD algorithm if the photon detection times are not biased by detector effects. We explain this result using a model for the information carried by scintillation photons as a function of the time when they are detected.

scholarly journals Pulse-shape discrimination and energy resolution of a liquid-argon scintillator with xenon doping

2014 ◽  
Vol 9 (06) ◽  
pp. P06013-P06013 ◽  
Author(s):  
C G Wahl ◽  
E P Bernard ◽  
W H Lippincott ◽  
J A Nikkel ◽  
Y Shin ◽  
...  
Keyword(s):  
Energy Resolution ◽  
Pulse Shape ◽  
Liquid Argon ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination

scholarly journals Erratum: Scintillation time dependence and pulse shape discrimination in liquid argon [Phys. Rev. C78, 035801 (2008)]

2010 ◽  
Vol 81 (3) ◽  
Author(s):  
W. H. Lippincott ◽  
K. J. Coakley ◽  
D. Gastler ◽  
A. Hime ◽  
E. Kearns ◽  
...  
Keyword(s):  
Time Dependence ◽  
Pulse Shape ◽  
Liquid Argon ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination

scholarly journals Scintillation time dependence and pulse shape discrimination in liquid argon

2008 ◽  
Vol 78 (3) ◽  
Author(s):  
W. H. Lippincott ◽  
K. J. Coakley ◽  
D. Gastler ◽  
A. Hime ◽  
E. Kearns ◽  
...  
Keyword(s):  
Time Dependence ◽  
Pulse Shape ◽  
Liquid Argon ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination

Solar Flare Energetic Neutral Emission Measurements in the Project Coronas-I

1994 ◽  
Vol 144 ◽  
pp. 635-639
Author(s):  
J. Baláž ◽  
A. V. Dmitriev ◽  
M. A. Kovalevskaya ◽  
K. Kudela ◽  
S. N. Kuznetsov ◽  
...  
Keyword(s):  
Solar Flare ◽  
Energy Range ◽  
Gamma Rays ◽  
Pulse Shape ◽  
Gamma Ray ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination ◽  
Solar Neutron ◽  
Low Altitude

AbstractThe experiment SONG (SOlar Neutron and Gamma rays) for the low altitude satellite CORONAS-I is described. The instrument is capable to provide gamma-ray line and continuum detection in the energy range 0.1 – 100 MeV as well as detection of neutrons with energies above 30 MeV. As a by-product, the electrons in the range 11 – 108 MeV will be measured too. The pulse shape discrimination technique (PSD) is used.

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