JPS5547467A - Wedge filter - Google Patents

Wedge filter

Info

Publication number
JPS5547467A
JPS5547467A JP12040978A JP12040978A JPS5547467A JP S5547467 A JPS5547467 A JP S5547467A JP 12040978 A JP12040978 A JP 12040978A JP 12040978 A JP12040978 A JP 12040978A JP S5547467 A JPS5547467 A JP S5547467A
Authority
JP
Japan
Prior art keywords
ray
wedge filter
filter
ratio
absorption coefficient
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
Application number
JP12040978A
Other languages
Japanese (ja)
Other versions
JPS6363854B2 (en
Inventor
Shigeru Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12040978A priority Critical patent/JPS5547467A/en
Publication of JPS5547467A publication Critical patent/JPS5547467A/en
Publication of JPS6363854B2 publication Critical patent/JPS6363854B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Analysing Materials By The Use Of Radiation (AREA)
  • Measurement Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Nuclear Medicine (AREA)

Abstract

PURPOSE: To improve the measuring accuracy of a wedge filter by combining a plurality of materials so that the ratio of composite radiation absorption coefficient of radiant ray of any energy to that of water of the same energy becomes constant.
CONSTITUTION: A wedge filter 5 used for an X-ray computer tomograph (CT) consists, for ecample, of carbon material 5b having a plane one surface (the surface of X-ray source side) and other arcuate recess curved surface (the surface of detected side), and aluminum material 5a so formed as to be rolled substantially in uniform thickness along the recessed surface of the material 5b. When the ratio in thickness of the material 5a to the material 5b is set to 1:16, the radiant ray absorption coefficient of the filter 5 becomes most uniform.
COPYRIGHT: (C)1980,JPO&Japio
JP12040978A 1978-10-02 1978-10-02 Wedge filter Granted JPS5547467A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12040978A JPS5547467A (en) 1978-10-02 1978-10-02 Wedge filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12040978A JPS5547467A (en) 1978-10-02 1978-10-02 Wedge filter

Publications (2)

Publication Number Publication Date
JPS5547467A true JPS5547467A (en) 1980-04-03
JPS6363854B2 JPS6363854B2 (en) 1988-12-08

Family

ID=14785497

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12040978A Granted JPS5547467A (en) 1978-10-02 1978-10-02 Wedge filter

Country Status (1)

Country Link
JP (1) JPS5547467A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58165657U (en) * 1982-04-15 1983-11-04 横河電機株式会社 X-ray filter
JPS60174139A (en) * 1984-02-20 1985-09-07 理学電機株式会社 X-ray tomography apparatus
JP2001133554A (en) * 1999-11-01 2001-05-18 Toshiba Corp Radiation detector and radioactive diagnosing apparatus
WO2013136994A1 (en) * 2012-03-13 2013-09-19 株式会社前川製作所 X-ray image capturing device and method for bone-in meat, and bone-in meat deboning system provided with said device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58165657U (en) * 1982-04-15 1983-11-04 横河電機株式会社 X-ray filter
JPS60174139A (en) * 1984-02-20 1985-09-07 理学電機株式会社 X-ray tomography apparatus
JP2001133554A (en) * 1999-11-01 2001-05-18 Toshiba Corp Radiation detector and radioactive diagnosing apparatus
JP4585064B2 (en) * 1999-11-01 2010-11-24 株式会社東芝 Radiation diagnostic equipment
WO2013136994A1 (en) * 2012-03-13 2013-09-19 株式会社前川製作所 X-ray image capturing device and method for bone-in meat, and bone-in meat deboning system provided with said device
JPWO2013136994A1 (en) * 2012-03-13 2015-08-03 株式会社前川製作所 Bone meat X-ray imaging apparatus and method, and bone meat deboning system equipped with the apparatus

Also Published As

Publication number Publication date
JPS6363854B2 (en) 1988-12-08

Similar Documents

Publication Publication Date Title
ES462752A1 (en) Apparatus for measuring local absorption differences
DE3279479D1 (en) Apparatus for measuring thickness
EP0465797A3 (en) Apparatus for measuring the iron content in zinc layers
JPS5547467A (en) Wedge filter
EP0206735A3 (en) Coating weight and thickness gauges
JPS54122176A (en) White x-ray stress measuring apparatus
JPS522777A (en) Radiation detector
JPS5368994A (en) X-ray apparatus
Joyet et al. Determination of the Electronic density and the average atomic number of tissues in man by γ-ray attenuation
JPS53128994A (en) Ct scanner
Datsenko Dynamical Scattering of X-Rays and Structural Perfection of Real Crystals
JPS53146655A (en) Thickness abnormality detector of paper form objects
JPS52155085A (en) Tomographic apparatus
JPS53147566A (en) Position detector
Jenkins et al. Measurement of coating thickness on irregular shaped objects
GB1529831A (en) Radiography
JPS5221886A (en) Measuring head of radiation measuring apparatus
JPS55116286A (en) Radiant ray detector
JPS542104A (en) Face run-out detector of rotating bodies
JPS53148400A (en) Radiant ray detector of semiconductor
JPS5340194A (en) Neutron detector
JPS52155086A (en) Tomographic apparatus
JPS5215987A (en) Detection device for radioactive foreign substance within liquid metal
JPS52140354A (en) Radiant ray thickness measuring device
JPS5389791A (en) X-ray spectroscope