Abstract
A microscope with band-pass filters was used to measure the optical-density distribution of GafChromic films irradiated with multi-slit microbeam X-rays. The planar width was 25 μm, and the center-to-center distance was 200 μm. The peak and valley dose rates in air were found to be 120 and 0.7 Gy/s, respectively. In a polymethylmethacrylate phantom, the peak-to-valley dose ratio decreased to 80 at a 1-mm depth. Doses calculated with the PENELOPE code agreed with those around the peak but became smaller in the valley.
Original language | English |
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Pages (from-to) | 155-159 |
Number of pages | 5 |
Journal | Applied Radiation and Isotopes |
Volume | 67 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2009 Jan |
Keywords
- Dose
- GafChromic film
- Microbeam
- PENELOPE
- Synchrotron radiation
ASJC Scopus subject areas
- Radiation