Studies on optimisation of collimator thickness and aperture for hot spot identification system using Monte Carlo technique

The optimum collimator design in terms of aperture and thickness for accomplishing improved performance for wide energy radiation field has been investigated in the present paper. A 2"x2" NaI(Tl) detector was used as sensor in proposed Hot Spot Identification system. The spectral response...

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Bibliographic Details
Published in:Indian journal of pure & applied physics 2012-11, Vol.50 (11), p.874-875
Main Authors: Verma, Amit K, Anilkumar, S, Thakur, Vaishali M, Jain, Amit, Babu, D A R, Sharma, D N
Format: Article
Language:English
Subjects:
Apertures
Collimators
Design engineering
Detectors
Hot spots
Monte Carlo methods
Optimization
Shields
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Summary:The optimum collimator design in terms of aperture and thickness for accomplishing improved performance for wide energy radiation field has been investigated in the present paper. A 2"x2" NaI(Tl) detector was used as sensor in proposed Hot Spot Identification system. The spectral response of the detector with various collimator apertures and thickness was developed using Monte Carlo methods for optimizing the collimator design. The optimum size of collimator aperture is found to be 2 mm and thickness of 5 cm. Studies were also carried out to optimize lead shield thickness around the detector.
ISSN:0019-5596