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KMID : 1164220050170010057
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Journal of Korean Society for Radiotherapeutic Technology
2005 Volume.17 No. 1 p.57 ~ p.71
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The evaluation of dose of TSEI with TLD and diode dector of the uterine cervix cancer
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Jae Young-Wan
Na Kyoung-Su
Yoon Il-Kyu
Park Heung-Deuk
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Abstract
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Purpose : To evaluate radiation dose and accuracy with TLD and diode detector when treat total skin with electron beam.
Materials and Methods : Using Stanford Technique, we treated patient with Mycosis Fungoides. 6 MeV electron beam of LINAC was used and the SSD was 300 cm. Also, acrylic speller(0.8 cm) was used. The patient position was 6 types and the gantry angle was 64, 90 and . The patient’s skin dose and the output were detected 5 to 6 times with TLD and diode.
Result : The deviations of dose detected with TLD from tumor dose were CA , thigh , umbilicus , calf , vertex , deep axillae , anus and testis , sole and nails shielded with 4mm lead . The deviations of dose detected with diode were at the patient center and at the speller.
Conclusion : The deviation of total skin dose was and that deviation was within the acceptable range(). The boost dose was irradiated for the low dose areas(vertex, anus, sole). The electron beam output detected at the sootier was stable. It is thought that the deviation of dose at patient center detected with diode was induced by detection point and patient position.
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KEYWORD
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TLD, diode detector, TSEI, evaluate radiation dose
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