JPS6474488A - Electronic counting device - Google Patents

Electronic counting device

Info

Publication number
JPS6474488A
JPS6474488A JP23279787A JP23279787A JPS6474488A JP S6474488 A JPS6474488 A JP S6474488A JP 23279787 A JP23279787 A JP 23279787A JP 23279787 A JP23279787 A JP 23279787A JP S6474488 A JPS6474488 A JP S6474488A
Authority
JP
Japan
Prior art keywords
discharging phenomenon
anode ring
light
gas
avalanche
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
JP23279787A
Other languages
Japanese (ja)
Inventor
Masashi Uda
Atsushi Manmoto
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.)
Hochiki Corp
RIKEN Institute of Physical and Chemical Research
Original Assignee
Hochiki Corp
RIKEN Institute of Physical and Chemical Research
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 Hochiki Corp, RIKEN Institute of Physical and Chemical Research filed Critical Hochiki Corp
Priority to JP23279787A priority Critical patent/JPS6474488A/en
Publication of JPS6474488A publication Critical patent/JPS6474488A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To inhibit an avalanche discharging phenomenon from entering when sample-emitted electrons are attracted detection part or providing a quenching gas generation material. CONSTITUTION:A sample 10 is irradiated with light from a light source unit 9 to emit electrons, which are admitted in through the detection windows 2 of the electron detection part 1 and attracted to the anode ring 4 with an electric field determined by the electrode voltages of the anode ring 4, a 1st grid electrode 5, and a 2nd grid electrode 6. Then a gas discharging phenomenon is caused and an voltage applied to the anode ring 3 drops to generate a voltage pulse. This voltage pulse is amplified 18 and then counted 24. Secondary electrodes emitted with light and positive ions generated by the gas discharging phenomenon are adsorbed by the quenching gas, e.g. gaseous methane produced by a quenching gas producing material 30 and neutralized to inhibit the avalanche discharging phenomenon.
JP23279787A 1987-09-17 1987-09-17 Electronic counting device Pending JPS6474488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23279787A JPS6474488A (en) 1987-09-17 1987-09-17 Electronic counting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23279787A JPS6474488A (en) 1987-09-17 1987-09-17 Electronic counting device

Publications (1)

Publication Number Publication Date
JPS6474488A true JPS6474488A (en) 1989-03-20

Family

ID=16944905

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23279787A Pending JPS6474488A (en) 1987-09-17 1987-09-17 Electronic counting device

Country Status (1)

Country Link
JP (1) JPS6474488A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59146388A (en) * 1983-02-02 1984-08-22 オウトクンプ　オイ Extension of life for proportional counter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59146388A (en) * 1983-02-02 1984-08-22 オウトクンプ　オイ Extension of life for proportional counter

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