Bulletin of the American Physical Society
5th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Volume 63, Number 12
Tuesday–Saturday, October 23–27, 2018; Waikoloa, Hawaii
Session HA: Conference Experience for Undergraduates Poster Session (2:00pm - 3:45pm)
2:00 PM,
Friday, October 26, 2018
Hilton
Room: Grand Promenade
Abstract ID: BAPS.2018.HAW.HA.103
Abstract: HA.00103 : Determining Light Decay Curves in Plastic Scintillators using Cosmic Ray Muons*
Presenter:
Sarah Mandanas
(State Univ of NY - Geneseo)
Authors:
Stephen J Padalino
(State Univ of NY - Geneseo)
Sarah Mandanas
(State Univ of NY - Geneseo)
Praveen Wakwella
(State Univ of NY - Geneseo)
Hannah McClow
(State Univ of NY - Geneseo)
Emily Vanderbilt
(State Univ of NY - Geneseo)
Kazuyoshi Sampson
(State Univ of NY - Geneseo)
Sean Regan
(Laboratory for Laser Energetics)
Craig Sangster
(Laboratory for Laser Energetics)
Plastic scintillators are used in HEDP and ICF research to measure neutron energies using a time of flight method. The energy resolution and sensitivity of an nToF system has a direct correlation to the scintillation decay time of the plastic. To decrease the decay time, xylene scintillators are quenched with oxygen and consequentially become less efficient at producing light. As time passes, the scintillator becomes oxygen deficient which increases light production and the decay time. Mono-energetic calibration neutrons used to monitor these increases are unavailable at most HEDP and ICF facilities. As a result, it is difficult to determine if oxygen concentration has decreased within these systems. Here, a possible method of calibrating xylene detectors in situ is presented. If the detectors response to cosmic ray muons is known, it can be used to determine the scintillation decay curve produced by a mono energetic neutron. As a result, the need for the remote accelerator based calibration of the xylene detectors is eliminated.
*Funded in part by the United States Department of Energy through the Laboratory for Laser Energetics
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.HAW.HA.103
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