- By:
- Berry, Kevin D; Clonts, Lloyd G; Crow Jr, Morris L; Diawara, Yacouba ; Funk, Loren L; Hannan, Bruce W; Hodges, Jason P; Riedel, Richard A; Wang, Cailin
- Page Number:
- 180-184
- Publication Date:
- December 5, 2012
- Conference Name:
- 2012 IEEE Nuclear Science Symposium
- Conference Location:
- Anaheim, California, United States of America
Abstract
The wavelength-shifting (WLS) fiber scintillator neutron detectors were developed for two time-of-flight (TOF) neutron powder diffractometers (POWGEN, VULCAN) at Spallation Neutron Source (SNS). In a recent module (v3.0), however, there are 32 1-inch-diameter photomultiplier tubes (PMTs) which are bulky and expensive. We built a new detector module (v3.1) based on four multi-anode (MA) PMTs, and tested its performance including detection efficiency, count rate capability, spatial resolution, ghosting properties, and gamma-ray sensitivity. The v3.1 module was compared with two prior v3.0 modules, and 3He tube detectors.
