A TECHNIQUE FOR MEASURING THE TIME RESPONSE AND THROUGH-PUT DELAY OF NEUTRON TIME-OF-FLIGHT (nTOF) SCINTILLATION DETECTORS USING COSMIC RADIATION IN A COINCIDENCE SYSTEM

Plastic scintillator-based neutron time-of-flight (nTOF) detectors are used to measure neutron signals from fusion experiments. These nTOF signals yield a temporal pulse width that is used to determine ion temperatures after the de-convolution of the experimentally determined detector time response and shifted to account for the detector through-put delay. Typically, time response and through-put delays are measured at an accelerator or laser facility. However, an alternative method can use cosmic radiation to measure time response and through-put delay. Two plastic scintillator detectors in a coincidence system can detect an incident cosmic ray. If a third nTOF detector is placed between these coincident detectors, the output cosmic ray signal in the nTOF detector can be analyzed to produce the time response and through-put delay. Measurements taken using cosmic radiation were mostly within one standard deviation of data taken on the same detectors at an electron accelerator.

Name thesis:degree_name

Nuclear Engineering

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Nuclear Engineering

Year

2014

Author dc:creator

• Bonura, Michael

Contributors dc:contributor

• Cooper, Gary
• Busch, Robert
• Ruiz, Carlos

• nTOF
• nTOF Detector Time Response
• nTOF Detector Through-put Delay
• Cosmic Radiation
• Exponentially-Modified Gaussian Function

Language dc:language

English

Identifier

https://digitalrepository.unm.edu/ne_etds/35

OAI identifier oai:identifier

oai:digitalrepository.unm.edu:ne_etds-1034