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Derivation of total filtration thickness for diagnostic x-ray source assembly
http://hdl.handle.net/2241/00144240
http://hdl.handle.net/2241/00144240a9f52e56-ea64-44d0-a488-7e0e9e5a1f43
名前 / ファイル | ライセンス | アクション |
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PMB_61-16 (706.9 kB)
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Item type | Journal Article(1) | |||||
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公開日 | 2016-10-31 | |||||
タイトル | ||||||
タイトル | Derivation of total filtration thickness for diagnostic x-ray source assembly | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Sekimoto, Michiharu
× Sekimoto, Michiharu× Katoh, Yoh |
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著者別名 |
関本, 道治
× 関本, 道治 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The method defined by the IEC 60522 for determining the inherent filtration of an x-ray source device is applicable only for a limited range of tube voltage. Because the users cannot legally remove the x-ray movable diaphragm of the x-ray source device, total filtration, which is the sum of the additional filtration diaphragm movable for specific filtration and x-ray, cannot be measured. We develop a method for simply obtaining the total filtration for different tube voltage values. Total filtration can be estimated from a ratio R' of the air kerma $K_{x+T}^{\prime}$ , which is measured with an Al plate with thickness T, and $K_{x}^{\prime}$ measured without an Al plate. The conditions of the target material of the x-ray source device are then entered into the Report 78 Spectrum Processor to calculate the air kerma K x and K x+T for Al thicknesses x and (x + T), respectively, to obtain R. The minimum value of x, which is the difference between the R and R', is the total filtration of the x-ray source device. The total filtration calculated using the industrial x-ray source device was within ±1% in the 40–120 kV range. This method can calculate the total filtration using air kerma measurements with and without the Al plate. Therefore, the load on the x-ray tube can be reduced, and preparation of multiple Al plates is not necessary. Furthermore, for the 40–120 kV tube voltage range, the user can easily measure the total filtration. |
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書誌情報 |
Physics in medicine and biology 巻 61, 号 16, p. 6011-6024, 発行日 2016-08 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0031-9155 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00774048 | |||||
PubMed番号 | ||||||
識別子タイプ | PMID | |||||
関連識別子 | 27444803 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1088/0031-9155/61/16/6011 | |||||
権利 | ||||||
権利情報 | © 2016 Institute of Physics and Engineering in Medicine | |||||
権利 | ||||||
権利情報 | Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | |||||
著者版フラグ | ||||||
値 | publisher | |||||
出版者 | ||||||
出版者 | IOP Publishing |