2009
DOI: 10.4103/0971-6203.48718
|View full text |Cite
|
Sign up to set email alerts
|

Extrapolation chamber mounted on perspex for calibration of high energy photon and electron beams from a clinical linear accelerator

Abstract: The objective of the present study is to establish radiation standards for absorbed doses, for clinical high energy linear accelerator beams. In the nonavailability of a cobalt-60 beam for arriving at Nd, water values for thimble chambers, we investigated the efficacy of perspex mounted extrapolation chamber (EC) used earlier for low energy x-rays and beta dosimetry. Extrapolation chamber with facility for achieving variable electrode separations 10.5mm to 0.5mm using micrometer screw was used for calibrations… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1

Citation Types

0
1
0

Year Published

2013
2013
2014
2014

Publication Types

Select...
2
2

Relationship

0
4

Authors

Journals

citations
Cited by 4 publications
(1 citation statement)
references
References 5 publications
0
1
0
Order By: Relevance
“…As there is no telecobalt machine available for surveillance of dosimetry methods, an attempt was earlier made to study the efficacy of an extrapolation chamber as a ‘secondary standard’ for institutional use. [ 3 ] The IAEA dosimetry protocol (TRS 398)[ 4 ] highlights the uncertainties involved in various steps of dissemination of measurement parameters. Another report[ 5 ] emphasizes the overall uncertainty situation in megavoltage radiotherapy beam calibration.…”
Section: Introductionmentioning
confidence: 99%
“…As there is no telecobalt machine available for surveillance of dosimetry methods, an attempt was earlier made to study the efficacy of an extrapolation chamber as a ‘secondary standard’ for institutional use. [ 3 ] The IAEA dosimetry protocol (TRS 398)[ 4 ] highlights the uncertainties involved in various steps of dissemination of measurement parameters. Another report[ 5 ] emphasizes the overall uncertainty situation in megavoltage radiotherapy beam calibration.…”
Section: Introductionmentioning
confidence: 99%