Gamma-ray imaging with a Si/CsI(Tl) Compton detector

A S Hoover; J P Sullivan; B Baird; S P Brumby; R M Kippen; C W McCluskey; M W Rawool-Sullivan; E B Sorensen

doi:10.1016/j.apradiso.2006.05.015

Gamma-ray imaging with a Si/CsI(Tl) Compton detector

Appl Radiat Isot. 2006 Dec;64(12):1648-54. doi: 10.1016/j.apradiso.2006.05.015. Epub 2006 Jul 11.

Authors

A S Hoover¹, J P Sullivan, B Baird, S P Brumby, R M Kippen, C W McCluskey, M W Rawool-Sullivan, E B Sorensen

Affiliation

¹ Los Alamos National Laboratory, Los Alamos, NM 87545, USA. ahoover@lanl.gov

PMID: 16837205
DOI: 10.1016/j.apradiso.2006.05.015

Abstract

We present results from Compton imaging of gamma-ray sources using an instrument constructed from thin silicon scattering detectors and CsI(Tl) absorbing detectors. We have successfully imaged single and double point sources for several common radioactive isotopes ((137)Cs, (60)Co, (22)Na, (54)Mn). The measured angular resolution is 11.6( composite function) FWHM at 662keV. In parallel with the hardware effort, a GEANT4-based simulation code was developed. Comparisons between real and simulated data are discussed.

MeSH terms

Cesium*
Equipment Design
Gamma Rays*
Iodides*
Radiation Monitoring / instrumentation
Silicon*
Spectrometry, Gamma / instrumentation*

Substances

Iodides
Cesium
cesium iodide
Silicon