Experimental Verification of Track Structure Models

被引:0
|
作者
Bashkirov, V. [1 ]
Schulte, R. [1 ]
Wroe, A. [1 ]
Breskin, A. [2 ]
Chechik, R. [2 ]
Schemelinin, S. [2 ]
Garty, G. [3 ]
Sadrozinski, H. [4 ]
Gargioni, E. [5 ]
Grosswendt, B. [5 ]
机构
[1] Loma Linda Univ, Med Ctr, Dept Radiat Med, Loma Linda, CA 92350 USA
[2] Weizmann Inst Sci, Dept Particle Phys, Rehovot, Israel
[3] Columbia Univ, RARAF, Nevis Lab, Irvington, NY 10533 USA
[4] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA
[5] Phys Tech Bundesanstalt, Braunschweig, Germany
关键词
RADIATION BIOLOGY; NANODOSIMETRY;
D O I
暂无
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
A tracking ion counting nanodosimeter was employed to acquire spatial ionization patterns produced by charged particles in propane gas at 1.3 mbar. Data were taken at the James M. Slater MD Proton Treatment and Research Center with 250 MeV, 17 MeV, 5 MeV and 1.5 MeV proton beams, 4.8 MeV alpha particles and electrons from a Sr-90/Y-90 source. For each particle type, measurable quantities used for track structure reconstruction included the number of ionizations and their location within a wall-less, cylindrical sensitive volume measured with a resolution of about 5 tissue-equivalent nanometers, and primary particle coordinates. Measured ionization frequency distributions as a function of distance from particle track were compared with results of a dedicated Monte Carlo track structure code.
引用
收藏
页码:2165 / +
页数:3
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