JPS5664651A - Radiation image information read system - Google Patents

Radiation image information read system

Info

Publication number
JPS5664651A
JPS5664651A JP14112479A JP14112479A JPS5664651A JP S5664651 A JPS5664651 A JP S5664651A JP 14112479 A JP14112479 A JP 14112479A JP 14112479 A JP14112479 A JP 14112479A JP S5664651 A JPS5664651 A JP S5664651A
Authority
JP
Japan
Prior art keywords
radiation image
image information
photon
pmt
signals
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
JP14112479A
Other languages
Japanese (ja)
Other versions
JPH0348492B2 (en
Inventor
Shusaku Eguchi
Noboru Kodera
Yoshitsugu Nishimura
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.)
Dai Nippon Toryo KK
Original Assignee
Dai Nippon Toryo KK
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 Dai Nippon Toryo KK filed Critical Dai Nippon Toryo KK
Priority to JP14112479A priority Critical patent/JPS5664651A/en
Publication of JPS5664651A publication Critical patent/JPS5664651A/en
Publication of JPH0348492B2 publication Critical patent/JPH0348492B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/043—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using fluoroscopic examination, with visual observation or video transmission of fluoroscopic images

Abstract

PURPOSE:To improve an S/N by a method wherein anode current pulses generated at an anode of a photoelectron amplifier which is a light receiver of photon pulse signals are directly counted in accordance with the photon pulse signals of radiant ray, and radiation image information is changed into digital signals. CONSTITUTION:A radiant ray radiated from a radiation image conversion panel 11 where a radiation image information is stored is projected into a photon multiplier tube (PMT) 16 and a photo current corresponding to the photon signals is output from the PMT 16. This output signal containing a dark current from the PMT 16 is amplified through an AC amplifier 17 and thereafter, a noise such as a dark current is eliminated through a discriminator 18, and then, only photo current is picked up, thus, it is lead into a pulse counter 19 and then, it is entered in a display unit 20, or the digital signals obtained here is entered in a memory unit 21, temporarily.
JP14112479A 1979-10-31 1979-10-31 Radiation image information read system Granted JPS5664651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14112479A JPS5664651A (en) 1979-10-31 1979-10-31 Radiation image information read system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14112479A JPS5664651A (en) 1979-10-31 1979-10-31 Radiation image information read system

Publications (2)

Publication Number Publication Date
JPS5664651A true JPS5664651A (en) 1981-06-01
JPH0348492B2 JPH0348492B2 (en) 1991-07-24

Family

ID=15284713

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14112479A Granted JPS5664651A (en) 1979-10-31 1979-10-31 Radiation image information read system

Country Status (1)

Country Link
JP (1) JPS5664651A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62174511U (en) * 1986-04-21 1987-11-06

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3859527A (en) * 1973-01-02 1975-01-07 Eastman Kodak Co Apparatus and method for producing images corresponding to patterns of high energy radiation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3859527A (en) * 1973-01-02 1975-01-07 Eastman Kodak Co Apparatus and method for producing images corresponding to patterns of high energy radiation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62174511U (en) * 1986-04-21 1987-11-06

Also Published As

Publication number Publication date
JPH0348492B2 (en) 1991-07-24

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