A detector for 2-D neutron imaging for the spallation neutron source

Author

Britton, Charles L. ; Bryan, William L. ; Wintenberg, Alan L. ; Clonts, Lloyd G. ; Warmack, Robert J. ; Mcknight, Timothy E. ; Frank, S. Shane ; Cooper, Ronald G. ; Dudney, Nancy J. ; Veith, Gabriel M.

Author_Institution

Oak Ridge Nat. Lab., TN, USA

Volume

1

fYear

2005

Firstpage

616

Lastpage

618

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 4×4 square array of 1 cm² 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.

Keywords

data acquisition; imaging; neutron detection; neutron sources; nuclear spallation; position sensitive particle detectors; preamplifiers; 2-D neutron imaging; 2-D pixellated thermal neutron detector; ¹⁰B film; ²⁵²Cf sources; MicroMegas-type structure; aluminum substrate; neutron converter; preamplifier-shaper-data acquisition system; spallation neutron source; Aluminum; Anodes; Argon; Detectors; Electrodes; Neutrons; Sensor arrays; Substrates; Telephony; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2005 IEEE

ISSN

1095-7863

Print_ISBN

0-7803-9221-3

Type

conf

DOI

10.1109/NSSMIC.2005.1596326

Filename

1596326