High-accuracy fluence determination in ion beams using fluorescent nuclear track detectors |
| |
| Affiliation: | 2. Department of Medical Physics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA;3. Department of Biomedical Engineering, Michigan Technological University, Houghton, Michigan, USA;4. Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA |
| |
| Abstract: | We present an approach to use Al2O3:C,Mg-based fluorescent nuclear track detectors (FNTDs) and confocal laser scanning microscopy as a semiautomatic tool for fluence measurements in clinical ion beams. The method was found to cover a linear energy transfer (LET) range from at least L∞(Al2O3) = 0.5 keV/μm to 61,000 keV/μm with a detection efficiency ≥99.83% (20 MeV protons) at particle fluences up to at least 5 × 107 per cm2. Our technique allows to determine the spatial fluence distribution on a microscopic scale and enables detailed track-by-track comparison studies between different fluence detectors. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
