JPH02101456U - - Google Patents

Info

Publication number
JPH02101456U
JPH02101456U JP870789U JP870789U JPH02101456U JP H02101456 U JPH02101456 U JP H02101456U JP 870789 U JP870789 U JP 870789U JP 870789 U JP870789 U JP 870789U JP H02101456 U JPH02101456 U JP H02101456U
Authority
JP
Japan
Prior art keywords
wehnelt electrode
divided
rectangular hole
filament
rectangular
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
JP870789U
Other languages
English (en)
Japanese (ja)
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 filed Critical
Priority to JP870789U priority Critical patent/JPH02101456U/ja
Publication of JPH02101456U publication Critical patent/JPH02101456U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Electron Sources, Ion Sources (AREA)
JP870789U 1989-01-27 1989-01-27 Pending JPH02101456U (US06174465-20010116-C00003.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP870789U JPH02101456U (US06174465-20010116-C00003.png) 1989-01-27 1989-01-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP870789U JPH02101456U (US06174465-20010116-C00003.png) 1989-01-27 1989-01-27

Publications (1)

Publication Number Publication Date
JPH02101456U true JPH02101456U (US06174465-20010116-C00003.png) 1990-08-13

Family

ID=31214821

Family Applications (1)

Application Number Title Priority Date Filing Date
JP870789U Pending JPH02101456U (US06174465-20010116-C00003.png) 1989-01-27 1989-01-27

Country Status (1)

Country Link
JP (1) JPH02101456U (US06174465-20010116-C00003.png)

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