DocumentCode
815173
Title
Gamma-Free Smoke and Particle Detector Using Tritiated Foils
Author
Liu, Baojun ; Alvarez-Ossa, Diego ; Kherani, Nazir P. ; Zukotynski, Stefan ; Chen, Kevin P.
Author_Institution
Dept. of Electr. & Comput. Eng., Pittsburgh Univ., PA
Volume
7
Issue
6
fYear
2007
fDate
6/1/2007 12:00:00 AM
Firstpage
917
Lastpage
918
Abstract
A smoke and particle ionization detector using tritiated amorphous silicon film as the radiation source is demonstrated. The ion chamber design includes both bipolar and unipolar regions, thereby enhancing the particle detection responsivity. The results show that this gamma-free detector is several-fold to fortyfold more responsive than traditional ionization detectors using Am-241. In addition, this ion chamber can function as a dual detector having both photoelectric and ionization detector responsivities
Keywords
amorphous semiconductors; elemental semiconductors; semiconductor thin films; silicon; smoke detectors; gamma-free smoke; ion chamber design; particle detector; smoke detection; tritiated foils; Amorphous silicon; Chemical industry; Fires; Gamma ray detection; Gamma ray detectors; Ionization; Radiation detectors; Semiconductor films; Smoke detectors; Testing; High responsivity; ionization; particle detection; smoke detection; tritium;
fLanguage
English
Journal_Title
Sensors Journal, IEEE
Publisher
ieee
ISSN
1530-437X
Type
jour
DOI
10.1109/JSEN.2007.895971
Filename
4162469
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