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IJPAP Vol.50(11) [November 2012] >


Title: Experimental investigation of synchrotron and Bremsstrahlung dose at lithography beam line of Indus-2 SRS
Authors: Nayak, M K
Sahani, P K
Khare, Mukesh
Sahu, T K
Haridas, P
Dev, Vipin
Dashora, S
Dhamgaye, Vishal
Haridas, G
Sarkar, P K
Keywords: Synchrotron radiation
Bremsstrahlung radiation
SR beam line-07
Ion chamber
Issue Date: Nov-2012
Publisher: NISCAIR-CSIR, India
Abstract: Measurement was performed during the initial trial operation of Lithography beam line (BL-07) of Indus-2 SRS. Transmission of SR through the beam line was optimized by providing bump to electron beam, prior to the measurement. Thin window ion chamber was used for SR measurement in direct beam. Ion current is converted to exposure rate using a calibration factor obtained with respect to Co-60 source. 6 mm thick Cu absorber was used for eliminating SR contribution during BR dose measurement. The exposure rates obtained are 3.83103 Gy/h/mA for SR and 4.210-4 Gy/h/mA for BR. Energy of bremsstrahlung radiation was also experimentally evaluated using attenuation technique. Details of these measurement and results are presented.
Page(s): 829-831
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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