JP2013164352A - 移動物の可視化方法及び可視化装置 - Google Patents
移動物の可視化方法及び可視化装置 Download PDFInfo
- Publication number
- JP2013164352A JP2013164352A JP2012027833A JP2012027833A JP2013164352A JP 2013164352 A JP2013164352 A JP 2013164352A JP 2012027833 A JP2012027833 A JP 2012027833A JP 2012027833 A JP2012027833 A JP 2012027833A JP 2013164352 A JP2013164352 A JP 2013164352A
- Authority
- JP
- Japan
- Prior art keywords
- directions
- radiation detector
- transmission
- measurement object
- image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007794 visualization technique Methods 0.000 title claims abstract description 14
- 238000012800 visualization Methods 0.000 title claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 52
- 230000005855 radiation Effects 0.000 claims abstract description 52
- 238000005259 measurement Methods 0.000 claims description 36
- 238000001514 detection method Methods 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 13
- 238000009835 boiling Methods 0.000 abstract description 10
- 230000005514 two-phase flow Effects 0.000 abstract description 8
- 238000013139 quantization Methods 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000013170 computed tomography imaging Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Analysing Materials By The Use Of Radiation (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
【解決手段】 移動物が内方を移動する測定対象1の周囲に放射線源11及び放射線検出器12を配置し、当該放射線源及び放射線検出器と前記測定対象との何れか一方を他方に対して相対的に移動することにより、前記測定対象の周囲に前記放射線源及び放射線検出器を回転させて当該測定対象の全方位から透過像を撮影し、全方位からの透過像を再構成して断面画像を得る可視化方法であって、前記測定対象の周囲に前記放射線源及び放射線検出器を複数回回転させて当該測定対象の全方位から透過像を複数組撮影し、複数組の全方位からの透過像を方位毎に重ね合わせて加算した全方位からの透過像を得、この加算した全方位からの透過像を再構成して断面画像を得る。
【選択図】 図1
Description
図3に記載した本発明に係る可視化方法と、図4に示す比較例に係る手法とで、出現率の低い気泡についての測定シミュレーションを行った。この結果を図6及び図7に示す。
10 基台
11 X線源
11 測定対象
12,12A 放射線検出器
13,13A 検出素子
15 遮蔽体
21,22,31 透過像
23,32,33 断面画像
Claims (3)
- 移動物が内方を移動する測定対象の周囲に放射線源及び放射線検出器を配置し、当該放射線源及び放射線検出器と前記測定対象との何れか一方を他方に対して相対的に移動することにより、前記測定対象の周囲に前記放射線源及び放射線検出器を回転させて当該測定対象の全方位から透過像を撮影し、全方位からの透過像を再構成して断面画像を得る可視化方法であって、
前記測定対象の周囲に前記放射線源及び放射線検出器を複数回回転させて当該測定対象の全方位から透過像を複数組撮影し、複数組の全方位からの透過像を方位毎に重ね合わせて加算した全方位からの透過像を得、この加算した全方位からの透過像を再構成して断面画像を得る
ことを特徴とする移動物の可視化方法。 - 請求項1に記載の移動物の可視化方法において、
前記放射線検出器は、複数の検出素子を具備し、各検出素子の間には、各検出素子と同等以上の大きさの遮蔽部材を備え、
全方位からの透過像の撮影を、所定量だけずらした撮影位置とした複数回転の撮影で行い、この全方位からの透過像の撮影を複数回繰り返して全方位からの透過像を複数組撮影する
ことを特徴とする移動物の可視化方法。 - 移動物が内方を移動する測定対象の周囲に配置される放射線源及び放射線検出器を具備し、当該放射線源及び放射線検出器と前記測定対象との何れか一方を他方に対して相対的に移動することにより、前記測定対象の周囲に前記放射線源及び放射線検出器を回転させて当該測定対象の全方位から透過像を撮影し、全方位からの透過像を再構成して断面画像を得る可視化装置であって、
前記放射線検出器は、複数の検出素子を具備し、各検出素子の間には、各検出素子と同等以上の大きさの遮蔽部材を備えた
ことを特徴とする可視化装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012027833A JP5920917B2 (ja) | 2012-02-10 | 2012-02-10 | 移動物の可視化方法及び可視化装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012027833A JP5920917B2 (ja) | 2012-02-10 | 2012-02-10 | 移動物の可視化方法及び可視化装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013164352A true JP2013164352A (ja) | 2013-08-22 |
JP5920917B2 JP5920917B2 (ja) | 2016-05-18 |
Family
ID=49175775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012027833A Active JP5920917B2 (ja) | 2012-02-10 | 2012-02-10 | 移動物の可視化方法及び可視化装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5920917B2 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016133397A (ja) * | 2015-01-20 | 2016-07-25 | 日本装置開発株式会社 | X線検査装置およびx線検査装置の調整方法 |
JP2019045272A (ja) * | 2017-08-31 | 2019-03-22 | 学校法人近畿大学 | 非破壊流動解析方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5832745A (ja) * | 1981-08-19 | 1983-02-25 | 株式会社東芝 | 放射線断層撮影装置 |
JPS58118734A (ja) * | 1982-01-06 | 1983-07-14 | 株式会社日立製作所 | Ctスキヤナ装置 |
JPS6015546A (ja) * | 1983-07-07 | 1985-01-26 | Toshiba Corp | 局所ボイド率分布の測定方法 |
JPS6198241A (ja) * | 1984-10-19 | 1986-05-16 | 株式会社東芝 | Ctスキヤナ装置 |
JPS63167248A (ja) * | 1986-12-27 | 1988-07-11 | Toshiba Corp | 産業用ctスキヤナ |
JPH02201253A (ja) * | 1989-01-31 | 1990-08-09 | Hitachi Medical Corp | 放射線ct装置における走査方法 |
JP2004157076A (ja) * | 2002-11-08 | 2004-06-03 | Toyota Motor Corp | X線検査装置 |
-
2012
- 2012-02-10 JP JP2012027833A patent/JP5920917B2/ja active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5832745A (ja) * | 1981-08-19 | 1983-02-25 | 株式会社東芝 | 放射線断層撮影装置 |
JPS58118734A (ja) * | 1982-01-06 | 1983-07-14 | 株式会社日立製作所 | Ctスキヤナ装置 |
JPS6015546A (ja) * | 1983-07-07 | 1985-01-26 | Toshiba Corp | 局所ボイド率分布の測定方法 |
JPS6198241A (ja) * | 1984-10-19 | 1986-05-16 | 株式会社東芝 | Ctスキヤナ装置 |
JPS63167248A (ja) * | 1986-12-27 | 1988-07-11 | Toshiba Corp | 産業用ctスキヤナ |
JPH02201253A (ja) * | 1989-01-31 | 1990-08-09 | Hitachi Medical Corp | 放射線ct装置における走査方法 |
JP2004157076A (ja) * | 2002-11-08 | 2004-06-03 | Toyota Motor Corp | X線検査装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016133397A (ja) * | 2015-01-20 | 2016-07-25 | 日本装置開発株式会社 | X線検査装置およびx線検査装置の調整方法 |
JP2019045272A (ja) * | 2017-08-31 | 2019-03-22 | 学校法人近畿大学 | 非破壊流動解析方法 |
Also Published As
Publication number | Publication date |
---|---|
JP5920917B2 (ja) | 2016-05-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5815048B2 (ja) | X線ct装置 | |
Attivissimo et al. | A technique to improve the image quality in computer tomography | |
Acciavatti et al. | Observation of super‐resolution in digital breast tomosynthesis | |
Mackenzie et al. | Characterisation of noise and sharpness of images from four digital breast tomosynthesis systems for simulation of images for virtual clinical trials | |
Coolens et al. | Dynamic volume vs respiratory correlated 4DCT for motion assessment in radiation therapy simulation | |
Meng et al. | Energy window optimization for X-ray K-edge tomographic imaging | |
CN106796717A (zh) | 辐射图像降噪 | |
JP2014083234A (ja) | 散乱線補正方法、画像処理装置および断層撮影装置 | |
Hossein et al. | Image quality and dose assessment of collimator slit width effect in SLOT-SCAN X-ray imaging system | |
WO2011058612A1 (ja) | 放射線撮影装置 | |
Vent et al. | Development and evaluation of the Fourier spectral distortion metric | |
JP5920917B2 (ja) | 移動物の可視化方法及び可視化装置 | |
Dietze et al. | Interventional respiratory motion compensation by simultaneous fluoroscopic and nuclear imaging: a phantom study | |
Li et al. | LOR-interleaving image reconstruction for PET imaging with fractional-crystal collimation | |
Rawlik et al. | Refraction beats attenuation in breast CT | |
KR101994539B1 (ko) | 콤프턴 단층 촬영 시스템 및 방법 | |
JP2017058191A (ja) | 放射線撮像装置 | |
Chen et al. | Super-resolution imaging in a multiple layer EPID | |
Olgar et al. | Quantitative image quality measurements of a digital breast tomosynthesis system | |
US8867699B2 (en) | Radiographic device | |
Kim et al. | Characterizing X-ray detectors for prototype digital breast tomosynthesis systems | |
Trapp | Novel Methods for the Reduction of Systematic and Statistical Measurement Deviations and Spatial Resolution Optimization in X-Ray Computed Tomography | |
KR102449932B1 (ko) | 컴프턴 효과를 활용한 방사선 민감도 증진 방법 및 방사선 민감도 증진 시스템 | |
Francis et al. | Elimination of Central Artefacts of L-SPECT with Modular Partial Ring Detectors by Shifting Center of Scanning | |
Islami Rad et al. | Motion detection in CT images with a novel fast technique |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20141202 |
|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20150422 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20150812 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20150909 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20151109 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20160113 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20160406 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20160407 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5920917 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |