Measuring of betatron collimated bremsstrahlung profile
| Parent link: | IPAC'16: proceedings of the 7th International Particle Accelerator Conference : May 8-13, 2016, BEXCO, Busan, Korea, PAL, Pohang Accelerator Laboratory/ ed. board: Christine Petit-Jean-Genaz [et al.]. [P. 258-260].— , 2016 |
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| Corporate Authors: | , |
| Other Authors: | , , , , , |
| Summary: | Title screen Bremsstrahlung beams of a betatron with energy lower than 10 MeV are successfully used in X-ray and γ-ray introscopy for recognition of groups of materials according to their atomic number [1], for a digital diagnostics in medicine [2] and etc. In this case it is necessary to collimate the beam to obtain required size of a field on an object. Divergence of bremsstrahlung beam is determined by the electrons energy and the thickness of target. It can reach values about < θγ >∼30° for the electrons energy ∼ 5 MeV. On the distance L ∼ 500 mm between a radiator and an irradiated object the size of a beam must not exceed S ∼ 0.1L. This requirement is in order to prevent any distortions of defect image because of the beam divergence. In this article dependence of a "pattern" size on the distance L at a fixed size of a collimator located right on the betatron is investigated. |
| Published: |
2016
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.18429/JACoW-IPAC2016-MOPMR015 http://accelconf.web.cern.ch/AccelConf/ipac2016/papers/mopmr015.pdf |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=655285 |
| Summary: | Title screen Bremsstrahlung beams of a betatron with energy lower than 10 MeV are successfully used in X-ray and γ-ray introscopy for recognition of groups of materials according to their atomic number [1], for a digital diagnostics in medicine [2] and etc. In this case it is necessary to collimate the beam to obtain required size of a field on an object. Divergence of bremsstrahlung beam is determined by the electrons energy and the thickness of target. It can reach values about < θγ >∼30° for the electrons energy ∼ 5 MeV. On the distance L ∼ 500 mm between a radiator and an irradiated object the size of a beam must not exceed S ∼ 0.1L. This requirement is in order to prevent any distortions of defect image because of the beam divergence. In this article dependence of a "pattern" size on the distance L at a fixed size of a collimator located right on the betatron is investigated. |
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| DOI: | 10.18429/JACoW-IPAC2016-MOPMR015 |