BARC/PUB/2012/1305

 
 

Dosimetric evaluation of an indigenously developed 10 MeV industrial electron beam irradiator

 
     
 
Author(s)

Chilkulwar, R. H.; Sharma, S. D.; Chaudhary, N.; Acharya, S.; Mayya, Y. S.; Mittal, K. C.; Gantayet, L. M.
(RP&AD;A&PPD)

Source

Radiation Measurements, 2012. Vol. 47 (8): pp. 628-633

ABSTRACT

The high dose rate electron beams are increasingly being used for radiation processing of various products worldwide. A comprehensive dosimetric evaluation of an in-house developed 10 MeV industrial electron beam irradiator was carried out in static as well as in dynamic mode of irradiations. Radiochromic B3 film and graphite calorimeter were used for dosimetric measurements. The dose rate from the electron beam was also calculated using the empirical relation prescribed in the ASTM report E2232-02. The measured electron beam profile indicates the dose rate variation within 8% in the irradiated product boxes. The most probable energy determined from the depth dose distribution in PMMA, Al and water was found in agreement with the intended energy of the electron beam. Measured dose rate using radiochromic film and graphite calorimeter were found in good agreement with each other and also found comparable with the theoretically estimated dose rates. Experimentally measured dose rates were considered for the trial irradiation of medical and industrial products. Dosimetric data obtained through this study confirms the suitability of the irradiator for routine radiation processing of various products.

 
 
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