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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.50 [2012] >
IJPAP Vol.50(11) [November 2012] >
| Title: | Alanine-EPR dosimetry in 10 MeV electron beam to optimize process parameters for food irradiation |
| Authors: | Sanyal, Bhaskar
Kumar, Sanjeev
Kumar, Mukesh
Mittal, K C
Sharma, Arun |
| Keywords: | LINAC
Food irradiation
Alanine-EPR
Dosimetry system |
| Issue Date: | Nov-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Absorbed dose in
food product is determined and controlled by several parameters of the LINAC
irradiation facility as well as those of the product. Standardization of the
parameters characterizing the facility parameters, process load and the
irradiation conditions collectively termed as ‘process parameters’ are
important for successful dose delivery to the food products. In the present
study, alanine-EPR dosimetry system was employed to optimize process parameters
of 10 MeV electron beam of a LINAC facility for commercial irradiation of food
products. Three sets of experiments were carried out with different food
commodities namely, mango, potato and semolina (coarsely ground wheat, local
name Rawa) with the available product conveying system of different irradiation
geometries in one sided or two sided mode of irradiation. Three dimensional
dose distributions into the process load for low dose requiring food
commodities (0.25 to 1 kGy) were measured in each experiment. The actual depth
dose profile in food product and useful scan width of the electron beam were
found to be satisfactory for commercial radiation processing of food. Finally,
a scaled up experiment with a commercial food product (packets of semolina)
exhibited adequate dose uniformity ratio allowing use of the facility for large
scale radiation processing of food commodities. |
| Page(s): | 870-873 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.50(11) [November 2012]
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