Tissue-equivalent TL sheet dosimetry system for X- and gamma-ray dose mapping.
To measure dose distribution for X- and gamma rays simply and accurately, a tissue-equivalent thermoluminescent (TL) sheet-type dosemeter and reader system were developed. The TL sheet is composed of LiF:Mg,Cu,P and ETFE polymer, and the thickness is 0.2 mm. For the TL reading, a square heating plate, 20 cm on each side, was developed, and the temperature distribution was measured with an infrared thermal imaging camera. As a result, linearity within 2% and the homogeneity within 3% were confirmed. The TL signal emitted is detected using a CCD camera and displayed as a spatial dose distribution. Irradiation using synchrotron radiation between 10 and 100 keV and (60)Co gamma rays showed that the TL sheet dosimetry system was promising for radiation dose mapping for various purposes.
Nariyama
N
N
Japan Synchrotron Radiation Research Institute, Mikazuki, Sayo, Hyogo 679-5198, Japan. nariyama@spring8.or.jp
Konnai
A
A
Ohnishi
S
S
Odano
N
N
Yamaji
A
A
Ozasa
N
N
Ishikawa
Y
Y
D032701:Biomimetics / Q000295:instrumentation* / Q000379:methods; D001822:Body Burden; D004307:Dose-Response Relationship, Radiation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005459:Fluorides / Q000737:chemistry* / Q000528:radiation effects*; D005720:Gamma Rays; D006801:Humans; D018020:Lithium Compounds / Q000737:chemistry* / Q000528:radiation effects*; D008422:Materials Testing; D008567:Membranes, Artificial; D011829:Radiation Dosage; D011835:Radiation Protection / Q000295:instrumentation* / Q000379:methods; D012062:Relative Biological Effectiveness; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation* / Q000379:methods; D014965:X-Rays
D018020:Lithium Compounds; D008567:Membranes, Artificial; C027651:lithium fluoride; D005459:Fluorides