Dose measurements for gamma knife with radiophotoluminescent glass dosemeter and radiochromic film

Stereotactic radiosurgery (SRS) is designed for patients with small lesion areas that are not suitable for actual surgery. SRS delivers high dose to the lesion with high gradient on the irradiation margin area. In this study, radiophotoluminescent glass dosemeter (RPLGD) and radiochromic film were u...

Full description

Saved in:
Bibliographic Details
Published in:Radiation protection dosimetry 2011-07, Vol.146 (1-3), p.256-259
Main Authors: Hsu, Shih-Ming, Lee, Jeng-Hung, Hsu, Fang-Yuh, Lee, Hsiu-Wen, Hung, Shih-Kai, Liao, Yi-Jen, Lee, Moon-Sing
Format: Article
Language:English
Subjects:
Dosimetry
Film Dosimetry - instrumentation
Glass - chemistry
helmets
Humans
Irradiation
Lesions
Luminescence
Monte Carlo Method
Monte Carlo simulation
Phantoms, Imaging
Radiation Monitoring - methods
Radiosurgery - instrumentation
Radiotherapy Dosage
surgery
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Stereotactic radiosurgery (SRS) is designed for patients with small lesion areas that are not suitable for actual surgery. SRS delivers high dose to the lesion with high gradient on the irradiation margin area. In this study, radiophotoluminescent glass dosemeter (RPLGD) and radiochromic film were used to measure the output factor of a gamma knife. Also, a Monte Carlo code (OMEGA/BEAM) was applied to simulate the output factor. For 14 and 8 mm sizes of helmet collimators, the variations of output factors determined with RPLGD, radiochromic film, the Monte Carlo code and Elekta were all within 0.5 %. When helmet collimator size was 4 mm, the output factors detected from RPLGD, radiochromic film and Monte Carlo simulation were all within 3.2 % when compared with Elekta. Taken together, RPLGD, radiochromic film and Monte Carlo simulation will be used as precise tools to measure the output factor of a gamma knife.
ISSN:0144-8420
1742-3406
DOI:10.1093/rpd/ncr164