Abstract

Research Article

Design and Development of a Dual-Volume Ionization Chamber for an Accident Monitor to Detect Gamma Radiation During Emergency Conditions in a Nuclear Reactor

Girish Kumar Palvai*, G Dhanunjaya, K Venkateswar Rao and PC Swain

Published: 30 October, 2023 | Volume 6 - Issue 2 | Pages: 189-193

A Gamma Ionization Chamber was developed for the purpose of high gamma radiation detection during accident conditions in a Light Water reactor. The pre-eminence of the detector is that it was designed and developed to monitor gamma exposure rates in the wide range of 100 mR/hr to 107 R/hr. The detector has an overall diameter of 90 mm with a length of 400 mm. The response of the detector is accurate and the sensitivity is within ± 6% over gamma energies ranging from 660 KeV to 1.25 MeV. 
The detector operates with a DC voltage of 500V. The V0.9 voltage is about 250V for 107 R/hr. The estimated operation life of the detector is about 20 years. 

Read Full Article HTML DOI: 10.29328/journal.ijpra.1001071 Cite this Article Read Full Article PDF

Keywords:

Gamma ionization chamber; Gamma radiation; Accident monitoring; Nuclear power reactor

References

  1. Attix FA. Introduction to Radiological Physics and Radiation Dosimetry.
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  4. IEC 60951-3, Nuclear Power Plants – Radiation Monitoring for Accident & Post Accident conditions; Equipment for continuous high range area gamma monitoring.
  5. Kim JC, Kim JK, Kim YK, Park SH. Analysis of Design Characteristics of Cylindrical Ion Chamber made by KAERI. A Comparison between EGSnrc, MCNP and experiment. Journal of Nuclear Science and Technology. https://doi.org/10.1080/00223131.2004.10875705
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