GB662046A - Improvements in screens for absorbing secondary radiation in x-ray apparatus - Google Patents

Improvements in screens for absorbing secondary radiation in x-ray apparatus

Info

Publication number
GB662046A
GB662046A GB29260/49A GB2926049A GB662046A GB 662046 A GB662046 A GB 662046A GB 29260/49 A GB29260/49 A GB 29260/49A GB 2926049 A GB2926049 A GB 2926049A GB 662046 A GB662046 A GB 662046A
Authority
GB
United Kingdom
Prior art keywords
grooves
grid
plate
groups
ray
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.)
Expired
Application number
GB29260/49A
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.)
ROGER ANDRE DELHUMEAU
Original Assignee
ROGER ANDRE DELHUMEAU
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 ROGER ANDRE DELHUMEAU filed Critical ROGER ANDRE DELHUMEAU
Publication of GB662046A publication Critical patent/GB662046A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
    • G21K1/025—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using multiple collimators, e.g. Bucky screens; other devices for eliminating undesired or dispersed radiation

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

662,046. X-ray apparatus. DELHUMEAU, R. A. Nov. 15, 1949 [Nov. 25, 1948], No. 29260/49. Drawings to Specification. Class 98 (i). A grid for absorbing secondary radiation comprises a plate of a substance permeable to X-rays formed with fine and close grooves extending through part of its depth, filled with a substance impermeable to X-rays. The grooves may be parallel to each other, or may comprise two groups, grooves in each group being parallel and crossing the grooves of the other group. The grooves are cut or engraved in the plate, and may be directed towards the X-ray source by forming the grooves at progressively increasing inclination to the central groove or by bending the grooved plate. They are filled with thin sheets of lead foil, or with an X-ray absorbing liquid such as mercury or an amalgam of mercury with, e.g. silver. To fill the grooves with liquid, an auxiliary plate may be placed over the grooves, which are evacuated to draw the liquid into them. A second plate may be fixed to the grid to cover the grooves. The grooves may be so close and fine that when the grid is stationary during an exposure the pattern does not obscure the X-ray image, or the grid may be moved during exposure. When the grid has two groups of grooves and is to be moved, the grooves of both groups are formed at an angle to the direction of movement.
GB29260/49A 1948-11-25 1949-11-15 Improvements in screens for absorbing secondary radiation in x-ray apparatus Expired GB662046A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR662046X 1948-11-25

Publications (1)

Publication Number Publication Date
GB662046A true GB662046A (en) 1951-11-28

Family

ID=9011268

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29260/49A Expired GB662046A (en) 1948-11-25 1949-11-15 Improvements in screens for absorbing secondary radiation in x-ray apparatus

Country Status (1)

Country Link
GB (1) GB662046A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE953303C (en) * 1952-08-17 1956-11-29 Mueller C H F Ag Method and apparatus for producing anti-scatter grids
DE1017023B (en) * 1954-09-30 1957-10-03 Siemens Reiniger Werke Ag Method of manufacturing an X-ray scattering screen
EP0506029A1 (en) * 1991-03-27 1992-09-30 Kabushiki Kaisha Toshiba Precisely focused collimator and method for manufacturing precisely focused collimator
WO2013101571A1 (en) * 2011-12-27 2013-07-04 Rigaku Innovative Technologies, Inc. A method of manufacturing patterned x - ray optical elements
US11139088B2 (en) 2019-06-12 2021-10-05 alephFS—Systems for Imaging Grid for X-ray imaging

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE953303C (en) * 1952-08-17 1956-11-29 Mueller C H F Ag Method and apparatus for producing anti-scatter grids
DE1017023B (en) * 1954-09-30 1957-10-03 Siemens Reiniger Werke Ag Method of manufacturing an X-ray scattering screen
EP0506029A1 (en) * 1991-03-27 1992-09-30 Kabushiki Kaisha Toshiba Precisely focused collimator and method for manufacturing precisely focused collimator
US5303459A (en) * 1991-03-27 1994-04-19 Kabushiki Kaisha Toshiba Method for manufacturing precisely focused collimator
WO2013101571A1 (en) * 2011-12-27 2013-07-04 Rigaku Innovative Technologies, Inc. A method of manufacturing patterned x - ray optical elements
JP2015510581A (en) * 2011-12-27 2015-04-09 リガク イノベイティブ テクノロジーズ インコーポレイテッド Method for producing patterned X-ray optical element
US11139088B2 (en) 2019-06-12 2021-10-05 alephFS—Systems for Imaging Grid for X-ray imaging

Similar Documents

Publication Publication Date Title
JPS5344193A (en) X-ray source device
GB752283A (en) Improvements in or relating to fluorescent screens
GB662046A (en) Improvements in screens for absorbing secondary radiation in x-ray apparatus
GB660703A (en) Improvements in and relating to x-ray diffraction apparatus
CA935568A (en) Device for examining material by x-ray fluorescence
CA1008918A (en) Apparatus for use in the determination of focal spot size in x-ray tubes
CA1027262A (en) Drive mechanism for an x-ray anti-scatter grid
AU456094B2 (en) New development composition for radiographic film
US2679008A (en) X-ray grid
ES202256A1 (en) A radiological installation (Machine-translation by Google Translate, not legally binding)
JPS52115682A (en) X-ray radiographic image taking apparatus
JPS5950346A (en) Device for detecting proton-ray image
JPS5240190A (en) X-ray analysis device
GB791937A (en) Improvements in or relating to arrangements for producing a plurality of photographic exposures in one exposure process
GB923989A (en) Improved apparatus for producing bremsstrahlung radiation
JPS51124370A (en) Focus correction device for scanning type electron microscope
IT972278B (en) DEVICE FOR RADIATION WITH HIGH ENERGY CONTENT ELECTRONS
AU457738B2 (en) An intensifying screen for x-ray radiograph use
AU2250677A (en) Semicondutor target for an x-ray image intensifier tube
CA935244A (en) Intensifying screen for x-ray radiograph use
JPS51142277A (en) Device for electron-beam exposure
JPS51126754A (en) Cathode ray tube
CA892296A (en) Intensification screen for radiographic film
ES207782A1 (en) Improvements introduced in the construction of fluoroscopic screens and intensifying x-rays (Machine-translation by Google Translate, not legally binding)
FR2145062A5 (en) X-ray tube - with dual target for prodn of hard or soft radiation