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JPS5258354A - Electronic beam iris unit - Google Patents

Electronic beam iris unit

Info

Publication number
JPS5258354A
JPS5258354A JP50133843A JP13384375A JPS5258354A JP S5258354 A JPS5258354 A JP S5258354A JP 50133843 A JP50133843 A JP 50133843A JP 13384375 A JP13384375 A JP 13384375A JP S5258354 A JPS5258354 A JP S5258354A
Authority
JP
Japan
Prior art keywords
electronic beam
iris unit
ray
beam iris
collision
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
JP50133843A
Other languages
Japanese (ja)
Inventor
Tadao Watabe
Shigeto Sunakozawa
Minoru Shinohara
Moriki Kubozoe
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 Ltd
Original Assignee
Hitachi Ltd
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 Ltd filed Critical Hitachi Ltd
Priority to JP50133843A priority Critical patent/JPS5258354A/en
Publication of JPS5258354A publication Critical patent/JPS5258354A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase the detection limit of chemical element, by absorbing X ray developed by damping radiation in the collision of electronic beam thru the iris unit itself and by turning the X ray away to the test piece to be analyzed.
COPYRIGHT: (C)1977,JPO&Japio
JP50133843A 1975-11-07 1975-11-07 Electronic beam iris unit Pending JPS5258354A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50133843A JPS5258354A (en) 1975-11-07 1975-11-07 Electronic beam iris unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50133843A JPS5258354A (en) 1975-11-07 1975-11-07 Electronic beam iris unit

Publications (1)

Publication Number Publication Date
JPS5258354A true JPS5258354A (en) 1977-05-13

Family

ID=15114326

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50133843A Pending JPS5258354A (en) 1975-11-07 1975-11-07 Electronic beam iris unit

Country Status (1)

Country Link
JP (1) JPS5258354A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5665445A (en) * 1979-10-31 1981-06-03 Hitachi Ltd Electron beam applying device
JPS57130357A (en) * 1981-02-04 1982-08-12 Toshiba Corp Electronic optical bodytube
JPS63146334A (en) * 1986-12-09 1988-06-18 Jeol Ltd Camera unit for electron microscope fitted with electron beam deflecting device
US10550521B2 (en) 2015-09-30 2020-02-04 Daio Paper Corporation Toilet paper

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS503079U (en) * 1973-05-09 1975-01-13

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS503079U (en) * 1973-05-09 1975-01-13

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5665445A (en) * 1979-10-31 1981-06-03 Hitachi Ltd Electron beam applying device
JPS624818B2 (en) * 1979-10-31 1987-02-02 Hitachi Ltd
JPS57130357A (en) * 1981-02-04 1982-08-12 Toshiba Corp Electronic optical bodytube
JPS63146334A (en) * 1986-12-09 1988-06-18 Jeol Ltd Camera unit for electron microscope fitted with electron beam deflecting device
US10550521B2 (en) 2015-09-30 2020-02-04 Daio Paper Corporation Toilet paper

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