| Project/Area Number |
11680515
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nuclear engineering
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| Research Institution | Nagoya University |
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Principal Investigator |
TAMIYA Tadashi School of Health Sciences, Nagoya University, Assist. Prof., 医学部, 助教授 (60167509)
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| Co-Investigator(Kenkyū-buntansha) |
NARITA Norihiko School of Health Sciences, Nagoya University, Research Associate., 医学部, 助手 (90283449)
KOYAMA Syuji School of Health Sciences, Nagoya University, Research Associate., 医学部, 助手 (20242878)
TABUSHI Katsuyoshi School of Health Sciences, Nagoya University, Prof., 医学部, 教授 (80283448)
TSUZAKA Masatoshi School of Health Sciences, Nagoya University, Lecturer, 医学部, 講師 (40155354)
OBATA Yasunori School of Health Sciences, Nagoya University, Prof., 医学部, 教授 (70160934)
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| Project Period (FY) |
1999 – 2000
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| Project Status |
Completed (Fiscal Year 2000)
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| Budget Amount *help |
¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 2000: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1999: ¥3,100,000 (Direct Cost: ¥3,100,000)
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| Keywords | Synchrotron Radiation / Monochromatic X-ray / Radiophotoluminescence Glass Dosimeter / Energy Characteristics / Low Energy X-ray / Mammography / Mixed X-ray Energy / Film Badge / フィルムバッジ |
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| Research Abstract |
Dosimeter (GD) is one of personal dosimeters. Proper information such as definite radiation energy and dose in the field are needed for the calibration of dosimetry. Effective energy of the continuousX-ray from generator has been generally substituted for monochromatic X-ray.
In this time, we got a chance to investigate the characteristics of monochromatic X-rays generated from synchrotron radiation, which was provided by The High Energy Research Institute, Tsukuba (KEK) and Japan Synchrotoron Radiation Research Institue, Harima (Spring-8).
To examine the possibility of the monochromatic X-ray as a radiation exposure field, X-ray spectrum was confirmed with high-purity germanium detector.
Furthermore, X-ray energy was calculated from mass attenuation coefficient obtained using a shallow ionization chamber and an aluminium absorption plate. We also confirmed whether the Radiophotoluminescene Glass Dosimeter (GD) accurately measured monochromatic X-rays from synchrotron radiation.
These experimental results suggested the high performance of the monochromatic X-ray field with proper uniformity.
No effect of harmonic X-rays on the GD was observed. The radiation field used in this study, however, was too small to measure the radiation dose by the shallow chamber. The Gd scanning the radiation field field showed a good desired response to exposure with 15 keV monochromatic X-ray, whereas the mixed exposure with 15 keV and 30 keV produced unfavorable result.
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