Abstract
Thin gaseous ionization detectors have been developed based on a current-integration mode for measurements of high-energy hadron beams. In the present detector R&D, two different types of prototype detectors with an active area of 16 × 16 cm2, each equipped with 256-signal processing channels, were manufactured and tested with 43-MeV protons provided by the MC50 proton cyclotron at the Korea Institute of Radiological and Medical Science (KIRAMS). The first one was equipped with a single gas electron multiplier (GEM), and the second one was a thin-plane ionization detector without the GEM foil loaded. The linearities of the detector responses for both detectors were examined for various proton-beam intensities. The quantitative accuracies for the channel-response data and for the total detector responses measured for 43-MeV protons were 0.4% and 0.34%, respectively. We conclude from the beam test that operating both types of detectors in the current-integration mode will allow quality measurements of dynamic-mode hadron beams to be performed with accuracies of better than 1%.
Original language | English |
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Pages (from-to) | 958-964 |
Number of pages | 7 |
Journal | Journal of the Korean Physical Society |
Volume | 64 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2014 |
Keywords
- Beam monitor
- Doseverification measurement
- Gas electron multiplier
- Gaseous ionization detector
- Hadron beam
ASJC Scopus subject areas
- Physics and Astronomy(all)