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| MOPMB020 |
Transverse Intensity Distribution Measurement of Ion Beams Using Gafchromic Films |
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- Y. Yuri, T. Agematsu, T. Ishizaka, K. Narumi, S. Okumura, H. Seito, T. Yuyama
JAEA/TARRI, Gunma-ken, Japan
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A possible method of measuring the transverse spatial distribution of energetic ion beams is developed at Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology (formerly, Japan Atomic Energy Agency). For this purpose, a radiochromic film, Gafchromic film (Ashland Inc.), is employed since it enables us to easily measure a large-area irradiation field distribution at a high spatial resolution. Gafchromic EBT3 and HD-V2 films are irradiated with ion beams of various species and kinetic energies extracted from a cyclotron and electrostatic accelerators at QST/Takasaki. Then, the coloration response of the films is analyzed in terms of the optical density. It is demonstrated that EBT3 and HD-V2 films are useful for the beam profile measurement at low fluence and at low energy, respectively.
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