LOW-ENERGY BACKGROUND IN MERCURIC IODIDE X-RAY SPECTROMETERS

Authors
BAO XJ NATARAJAN M HENDERSON J
Citation
Xj. Bao et al., LOW-ENERGY BACKGROUND IN MERCURIC IODIDE X-RAY SPECTROMETERS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 380(1-2), 1996, pp. 58-61
Citations number
10
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
380
Issue
1-2
Year of publication
1996
Pages
58 - 61
Database
ISI
SICI code
0168-9002(1996)380:1-2<58:LBIMIX>2.0.ZU;2-B
Abstract
The origins of the continuous background (window effect or dead layer) in mercuric iodide X-ray spectrometers are investigated. It is found that photo-electron escape and carrier diffusion are the dominant mech anisms of incomplete charge collection in the energy range of interest (from 3-60 keV). X-ray spectra measurements, computer calculation and photo-response measurements are presented in support of the proposed model. Many observations of detector behavior made in the manufacturin g and application of mercuric iodide X-ray detectors can be explained by this model.