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

Shih Ming Hsu, Jeng Hung Lee, Fang Yuh Hsu, Hsiu Wen Lee, Shih Kai Hung, Yi Jen Liao, Moon Sing Lee

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article numberncr164
Pages (from-to)256-259
Number of pages4
JournalRadiation Protection Dosimetry
Volume146
Issue number1-3
DOIs
Publication statusPublished - Jul 2011
Externally publishedYes

Fingerprint

Glass
Head Protective Devices
dosage
Radiosurgery
glass
output
helmets
collimators
lesions
surgery
margins
simulation
gradients
irradiation

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology
  • Radiation
  • Public Health, Environmental and Occupational Health

Cite this

Dose measurements for gamma knife with radiophotoluminescent glass dosemeter and radiochromic film. / Hsu, Shih Ming; Lee, Jeng Hung; Hsu, Fang Yuh; Lee, Hsiu Wen; Hung, Shih Kai; Liao, Yi Jen; Lee, Moon Sing.

In: Radiation Protection Dosimetry, Vol. 146, No. 1-3, ncr164, 07.2011, p. 256-259.

Research output: Contribution to journalArticle

Hsu, Shih Ming ; Lee, Jeng Hung ; Hsu, Fang Yuh ; Lee, Hsiu Wen ; Hung, Shih Kai ; Liao, Yi Jen ; Lee, Moon Sing. / Dose measurements for gamma knife with radiophotoluminescent glass dosemeter and radiochromic film. In: Radiation Protection Dosimetry. 2011 ; Vol. 146, No. 1-3. pp. 256-259.
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