Study on three dimensional dose distribution measurement using photostimulated luminescence

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K18321
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nuclear engineering
• Research Institution: National Institutes for Quantum and Radiological Science and Technology (2016-2017); Japan Atomic Energy Agency (2015)
• Principal Investigator: Akihito Yokoyama 国立研究開発法人量子科学技術研究開発機構, 高崎量子応用研究所 放射線高度利用施設部, 主任技術員(定常) (10532088)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 重粒子線 / 線量分布 / ブラッグピーク

Outline of Final Research Achievements

Carbon beams at an energy of the order of hundreds MeV/n are used in heavy-ion therapy, and techniques of measuring the dose distribution given by the beam irradiation are necessary for improving the safety in the treatment. The purpose of this study was to examine whether the Bragg peak of the carbon beam can be measured by using glass material. The Bragg peak was measured by using the ionization chamber at the depths of 127 mm and the peak-plateau ratios was 4.4. Some improvements such as the amount of the activator were made for the the glass material G2000 so as to be used for dose measurement and quality-assurance programs involving therapeutic carbon beams.

Free Research Field

放射線計測