JPS5513816A - Ionization chamber type x-ray detector - Google Patents

Ionization chamber type x-ray detector

Info

Publication number
JPS5513816A
JPS5513816A JP8509178A JP8509178A JPS5513816A JP S5513816 A JPS5513816 A JP S5513816A JP 8509178 A JP8509178 A JP 8509178A JP 8509178 A JP8509178 A JP 8509178A JP S5513816 A JPS5513816 A JP S5513816A
Authority
JP
Japan
Prior art keywords
electrodes
ray detector
ionization chamber
chamber type
grooves
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
JP8509178A
Other languages
Japanese (ja)
Inventor
Kiyoshi Ishikawa
Minoru Yoshida
Takayuki Hayakawa
Seiichi Murayama
Shinji Yamamoto
Hideji Fujii
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.)
Hitachi Healthcare Manufacturing Ltd
Original Assignee
Hitachi Medical Corp
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 Hitachi Medical Corp filed Critical Hitachi Medical Corp
Priority to JP8509178A priority Critical patent/JPS5513816A/en
Publication of JPS5513816A publication Critical patent/JPS5513816A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J47/00—Tubes for determining the presence, intensity, density or energy of radiation or particles
    • H01J47/02—Ionisation chambers

Landscapes

  • Measurement Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Electron Tubes For Measurement (AREA)

Abstract

PURPOSE:To keep dark currents below a fixed value over all electrodes by elongating each parallel-surface distance between electrodes by providing grooves between respective anode electrodes and cathode electrodes. CONSTITUTION:Between holding grooves 2 of anode electrodes 5 and cathode electrodes 6 held by insulator 1, grooves 4 are provided so as to elongate each parallel-surface distance between electrodes 5 and 6. Consequently, dark-current values the signal detection circuit requires can be kept less than 10<-11>A over all electrodes.
JP8509178A 1978-07-14 1978-07-14 Ionization chamber type x-ray detector Pending JPS5513816A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8509178A JPS5513816A (en) 1978-07-14 1978-07-14 Ionization chamber type x-ray detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8509178A JPS5513816A (en) 1978-07-14 1978-07-14 Ionization chamber type x-ray detector

Publications (1)

Publication Number Publication Date
JPS5513816A true JPS5513816A (en) 1980-01-31

Family

ID=13848923

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8509178A Pending JPS5513816A (en) 1978-07-14 1978-07-14 Ionization chamber type x-ray detector

Country Status (1)

Country Link
JP (1) JPS5513816A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819347U (en) * 1981-07-31 1983-02-05 三洋電機株式会社 cash register machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819347U (en) * 1981-07-31 1983-02-05 三洋電機株式会社 cash register machine
JPS6245278Y2 (en) * 1981-07-31 1987-12-02

Similar Documents

Publication Publication Date Title
JPS52150571A (en) Vacuum breaker electrode
AU2671577A (en) Anode and cathode on insulator
GB2041637B (en) Oxide-coated cathode for electron tube
JPS5321777A (en) Vacuum breaker electrode
JPS5439191A (en) Oxygen detector
JPS5513816A (en) Ionization chamber type x-ray detector
JPS5519710A (en) Vacuum breaker electrode
GB2040557B (en) Electron tube cathode
JPS54161223A (en) High resolution cathode ray tube circuit
JPS5516310A (en) Ionization chamber of ray compensation type
JPS5587069A (en) Detector for radiation
JPS5427349A (en) Electron tube
JPS5239178A (en) Vacuum breaker electrode
JPS5476198A (en) Gas detector
JPS51118949A (en) Electrode assembling device of cathode-ray tube
JPS54153687A (en) Ionization chamber type radiation detector
JPS5313869A (en) Cathode ray tube
JPS5494092A (en) Mass analyzer
JPS5260586A (en) Rotary anode x-ray tube
JPS5414154A (en) Electron gun
GB1538738A (en) Electron emissive electrode
JPS5239177A (en) Vacuum breaker electrode
JPS5239179A (en) Vacuum breaker electrode
JPS52155958A (en) Electron gun for cathode ray tube
JPS5469791A (en) Bushing