CVD diamond for beta particle detection in a gamma-ray background
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2018-09-13 |
| Authors | Paul R. Bennett, L. Cirignano, Alireza Kargar, Hadong Kim, Kanai S. Shah |
| Institutions | Radiation Monitoring Devices (United States) |
| Citations | 3 |
Abstract
Section titled āAbstractāHigh purity, CVD grown diamond is a good candidate material for beta particle detection at elevated temperature in the presence of a gamma ray background. Due to its wide band gap, low noise detector operation is possible at temperatures in excess of 200 Ā°C. Its low atomic number limits its gamma-ray interaction probability. Stacked diamond detectors operated in coincidence can further reduce background due to gamma-ray interactions. In addition, high charge carrier mobility and high breakdown voltage enable high count rate operation. In this paper we report on gamma-ray and beta particle detection of CVD diamond detectors with thickness ranging from ~ 0.1 mm to 0.5 mm. CVD grown diamond materials were acquired from Element Six. Planar devices were fabricated by depositing Au/Cr contacts by thermal evaporation. Measurements of single diamond detectors and stacked detectors operated in coincidence as well as measurements at elevated temperatures are presented in this paper.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
Section titled āReferencesā- 2011 - Advanced Surveillance Technologies for Used Fuel Long-Term Storage and Transportation