August 2006

Conference Paper

A Detector for 2-D Neutron Imaging for the Spallation Neutron Source

By:
Britton Jr, Charles L; Bryan, William L; Wintenberg, Alan ; Clonts, Lloyd G; Warmack, Robert J; Mcknight, Timothy E; Frank, Steven S; Cooper, Ronald G; Dudney, Nancy J; Veith, Gabriel M
Journal Name:
IEEE Nuclear Science Symposium - Conference Record
Page Number:
616-618
Volume:
N/A
Issue Number:
N/A
Publication Date:
August 2006
Conference Name:
2005 IEEE Nuclear Science Symposium COnference Record
Conference Location:
Fajardo, Mexico

Abstract

Abstract - We have designed, built, and tested a 2-D pixellated thermal neutron detector. The detector is modeled after the MicroMegas-type structure previously published for collider-type experiments. The detector consists of a 4X4 square array of 1 cm 2 pixels each of which is connected to an individual preamplifier-shaper-data acquisition system. The neutron converter is a 10B film on an aluminum substrate. We describe the construction of the detector and the test results utilizing 252Cf sources in Lucite to thermalize the neutrons.Drift electrode (Aluminum) Converter (10B) 3 mm Conversion gap neutron (-900 V)