| アイテムタイプ |
文献 / Documents(1) |
| 公開日 |
2017-09-14 |
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版社版DOI |
|
|
|
関連識別子 |
https://doi.org/10.1007/s12194-016-0362-5 |
| 出版タイプ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| タイトル |
|
|
タイトル |
Estimation of identification limit for a small-type OSL dosimeter on the medical images by measurement of X-ray spectra |
| 著者 |
タケガミ, カズキ
林, 裕晃
オキノ, ヒロキ
キモト, ナツミ
マエハタ, イツミ
金澤, 裕樹
オカザキ, トオル
ハシズメ, タクヤ
コバヤシ, イクオ
|
| 抄録 |
|
|
内容記述 |
Our aim in this study is to derive an identification limit on a dosimeter for not disturbing a medical image when patients wear a small-type optically stimulated luminescence (OSL) dosimeter on their bodies during X-ray diagnostic imaging. For evaluation of the detection limit based on an analysis of X-ray spectra, we propose a new quantitative identification method. We performed experiments for which we used diagnostic X-ray equipment, a soft-tissue-equivalent phantom (1–20 cm), and a CdTe X-ray spectrometer assuming one pixel of the X-ray imaging detector. Then, with the following two experimental settings, corresponding X-ray spectra were measured with 40–120 kVp and 0.5–1000 mAs at a source-to-detector distance of 100 cm: (1) X-rays penetrating a soft-tissue-equivalent phantom with the OSL dosimeter attached directly on the phantom, and (2) X-rays penetrating only the soft-tissue-equivalent phantom. Next, the energy fluence and errors in the fluence were calculated from the spectra. When the energy fluence with errors concerning these two experimental conditions was estimated to be indistinctive, we defined the condition as the OSL dosimeter not being identified on the X-ray image. Based on our analysis, we determined the identification limit of the dosimeter. We then compared our results with those for the general irradiation conditions used in clinics. We found that the OSL dosimeter could not be identified under the irradiation conditions of abdominal and chest radiography, namely, one can apply the OSL dosimeter to measurement of the exposure dose in the irradiation field of X-rays without disturbing medical images. |
| キーワード |
|
|
主題 |
OSL dosimeter |
| キーワード |
|
|
主題 |
CdTe detector |
| キーワード |
|
|
主題 |
Patient exposure dose measurement |
| キーワード |
|
|
主題 |
Diagnostic X-rays |
| 書誌情報 |
en : Radiological Physics and Technology
巻 9,
号 2,
p. 286-292,
発行日 2016-06-03
|
| 収録物ID |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
18650333 |
| 収録物ID |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
18650341 |
| 収録物ID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA12236881 |
| 出版者 |
|
|
出版者 |
Springer Japan |
| 備考 |
|
|
値 |
The final publication is available at Springer via http://dx.doi.org/10.1007/s12194-016-0362-5. |
| 権利情報 |
|
|
権利情報 |
Copyright © Japanese Society of Radiological Technology and Japan Society of Medical Physics 2016 |
| EID |
|
|
識別子 |
312281 |
| 言語 |
|
|
言語 |
eng |
rpt_9_2_286.pdf (409 KB)
