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Year : 2010  |  Volume : 33  |  Issue : 4  |  Page : 216-218

Gamma dose mapping at D 2 O heat exchanger room, valve room-dhruva reactor using EPR dosimetry

1 Radiation Safety Systems Division, BARC, Mumbai, India
2 Radiochemistry Division, BARC, Mumbai, India

Correspondence Address:
S Murali
Radiation Safety Systems Division, BARC, Mumbai
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Source of Support: None, Conflict of Interest: None

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EPR dosimetry finds application in gamma dose measurements whenever the dose range is above Gy level. Suitable matrices are used as cumulative dosimeters. The present study describes the dose mapping of D 2 O heat exchanger room and Valve room of Dhruva reactor, while the EPR dosimetry was used with Alanine and Lithium Carbonate as the dosimeters for cumulative gamma dose measurements. The samples in duplicate, were irradiated for two different irradiation time intervals. Results of the two sets of irradiations for 600 hours (~25 days) and 1200 hours (~50 days) of gamma irradiation and their dosimetric signal readings, found to agree within ±5%, are presented.

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