| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2012: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2011: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2010: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
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| Research Abstract |
Medical accidents which are over and/or under dose of the irradiation mistake occur frequently in radiation therapy. To reduce these accidents and to increase accuracy of radiation therapy, we are developing an implantable real time mycrodosimetly system. Artificial ruby which is implanted in the patient body/or tumor generates scintillation during the irradiation is used as a sensor. And the doses of radiation are monitored by measuring the intensity of scintillation using photon counting system. As a first step, we made a miniaturized measurement system that is involves scintillator, pig meat as a phantom and measurement instruments. We got the scintillating data that through a thickness of 10cm pig meet, 694nm of scintillation is proportionally generated from artificial ruby scintillators when the LINAC is working at the dose rate of 6Gy/min. We used a 3D-CT image to quantify like an attenuation correction method of the nuclear medicine.
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