Secondary neutron measurements in proton therapy with nuclear emulsion technology.

2017 Fiscal Year Final Research Report

• Project/Area Number: 16H07116
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Medical Physics and Radiological Technology
• Research Institution: Nagoya City University
• Principal Investigator: Kimura Mitsuhiro 名古屋市立大学, 大学院医学研究科, 研究員 (90782334)
• Project Period (FY): 2016-08-26 – 2018-03-31
• Keywords: 放射線医学

Outline of Final Research Achievements

We have evaluated detection capability of nuclear emulsion with submicron spatial resolution in order to investigate energy and spatial distributions for secondary neutrons induced by proton therapy. The Geant4 simulation was performed to optimize a detector construction, and test experiments were conducted to irradiate a water phantom with a therapeutic proton beam. Several experiments allowed us to detect clear recoil proton tracks in an emulsion film and reconstruct ten million tracks in the detector.

Free Research Field

医学物理