JPS54130891A - Tomograph using analogue picture memory - Google Patents

Tomograph using analogue picture memory

Info

Publication number
JPS54130891A
JPS54130891A JP3816478A JP3816478A JPS54130891A JP S54130891 A JPS54130891 A JP S54130891A JP 3816478 A JP3816478 A JP 3816478A JP 3816478 A JP3816478 A JP 3816478A JP S54130891 A JPS54130891 A JP S54130891A
Authority
JP
Japan
Prior art keywords
rays
memory
picture memory
analogue
tomograph
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.)
Pending
Application number
JP3816478A
Other languages
Japanese (ja)
Inventor
Tatsuo Goto
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP3816478A priority Critical patent/JPS54130891A/en
Publication of JPS54130891A publication Critical patent/JPS54130891A/en
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/025—Tomosynthesis

Abstract

PURPOSE:To make it possible to obtain sectional pictures in a high speed and apply tomograph to the industry measurement field by using an analogue memory as the picture meory. CONSTITUTION:An object which has a uniform transmittivity for X rays and has one position difficult to transmit X rays through is scanned by narrow beam-shaped X rays from an X-ray source, and X rays are received a detector to obtain waveform p1. Next, the position of the X-ray source and the detector is changed to obtain waveforms p2 and p3. Sectional image A' which corresponds to the position difficult to transmit X rays through is obtained while scanning picture memory 5 correspondingly to the scanning results above. Here, a scan converter is used as an analogue picture memory which can overwrite data onto picture memory 5. In respect to the scan converter, influences caused by accessing the memory face by beam can be eliminated if a proper potential is given to the secondary electron control grid to balance the charge of incident electrons and the charge of the secondary electrons. Then, read operation is performed by detecting emitted secondary electrons, and write operation is performed by changing the potential of the control grid.
JP3816478A 1978-04-03 1978-04-03 Tomograph using analogue picture memory Pending JPS54130891A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3816478A JPS54130891A (en) 1978-04-03 1978-04-03 Tomograph using analogue picture memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3816478A JPS54130891A (en) 1978-04-03 1978-04-03 Tomograph using analogue picture memory

Publications (1)

Publication Number Publication Date
JPS54130891A true JPS54130891A (en) 1979-10-11

Family

ID=12517752

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3816478A Pending JPS54130891A (en) 1978-04-03 1978-04-03 Tomograph using analogue picture memory

Country Status (1)

Country Link
JP (1) JPS54130891A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58117445A (en) * 1981-12-30 1983-07-13 Nippon Steel Corp Steel pipe detecting method by radiation penetration
JPS60203841A (en) * 1984-03-29 1985-10-15 Nippon Steel Corp X-ray transmission testing method of sintered ore and pellet
US4672650A (en) * 1984-02-16 1987-06-09 Kabushiki Kaisha Toshiba Tomographic testing apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52140286A (en) * 1976-05-17 1977-11-22 Optische Ind De Oude Delft Nv Method and device for forming sectional photograph

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52140286A (en) * 1976-05-17 1977-11-22 Optische Ind De Oude Delft Nv Method and device for forming sectional photograph

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58117445A (en) * 1981-12-30 1983-07-13 Nippon Steel Corp Steel pipe detecting method by radiation penetration
US4672650A (en) * 1984-02-16 1987-06-09 Kabushiki Kaisha Toshiba Tomographic testing apparatus
JPS60203841A (en) * 1984-03-29 1985-10-15 Nippon Steel Corp X-ray transmission testing method of sintered ore and pellet

Similar Documents

Publication Publication Date Title
CA1079871A (en) Device for measuring the absorption of radiation in a slice of a body
US4670652A (en) Charged particle beam microprobe apparatus
GB1492480A (en) X-ray picture coding
JPS54130891A (en) Tomograph using analogue picture memory
CA1154882A (en) Scintillation camera
CA1145069A (en) Automatic energy dispersive x-ray fluorescence analysing apparatus
US4761802A (en) High-contrast X-ray image detecting apparatus
US4529883A (en) Multi-imaging apparatus for the scintillation camera
Jeavons et al. Two-dimensional proportional chamber readout using digital techniques
JPS5676153A (en) Image signal processor for scanning electron microscope
SU1498201A1 (en) Analogue-computational tomograph
JPS54138467A (en) Scanning type electron microscope or resembling apparatus
JPH0329867A (en) Observation of voltage distribution image by electron beam apparatus
GB2095935A (en) Apparatus and method for digitization of fast analog waveforms
US3621251A (en) Electronic radioactive sensing and scanning device
SU798967A1 (en) Device for displaying quick-passing processes
JPH04364454A (en) Scattered x-ray measuring apparatus
Ditta et al. Test of a position sensitive photomultiplier hodoscope
JPS5472993A (en) X-ray tomographic equipment
Chaturvedi et al. Application of microbeam analysis of biomedical samples
SU466842A1 (en) Gammatomograf
SU1008779A1 (en) Device for reproducing flaws of investigated object on the crt screen
GB834815A (en) Radiographic method and apparatus
JPS647345B2 (en)
Bordner et al. A computer controlled precision film scanner