Please use this identifier to cite or link to this item:
http://nopr.niscpr.res.in/handle/123456789/26683| Title: | Use of nitrogen filled ion chamber for wide-range gamma monitoring |
| Authors: | Balagi, V Prasad, K R Jakati, R K Kataria, S K |
| Issue Date: | Sep-2001 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | A gamma-sensitive ion chamber has been developed for area gamma monitoring. It has 800 cc sensitive volume filled with nitrogen at 120 psig pressure. With a current sensitivity of 0.6 nA/R/h the chamber needs 250 V for 90 % saturation at 10R/h. However, the use of the tanh formula proposed by Fallone and Podgorsak (Med-Phys, 10(1983) 191) has enabled the authors to develop an instrument to derive exposure rates as high as 80.000 R/h with the help of a single current reading at an applied voltage of 300 V. The instrument can be used to measure unknown exposure rate with accuracy within ±3.5%. |
| Page(s): | 607-610 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Appears in Collections: | IJPAP Vol.39(09) [September 2001] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJPAP 39(9) 607-610.pdf | 618.07 kB | Adobe PDF | View/Open |
Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.