NL277862A - - Google Patents

Info

Publication number
NL277862A
NL277862A NL277862DA NL277862A NL 277862 A NL277862 A NL 277862A NL 277862D A NL277862D A NL 277862DA NL 277862 A NL277862 A NL 277862A
Authority
NL
Netherlands
Application number
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.)
Publication of NL277862A publication Critical patent/NL277862A/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/087—Magnetic focusing arrangements
    • H01J23/0873—Magnetic focusing arrangements with at least one axial-field reversal along the interaction space, e.g. P.P.M. focusing
NL277862D 1961-05-02 NL277862A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES73780A DE1298197B (de) 1961-05-02 1961-05-02 Permanentmagnetsystem zur gebuendelten Fuehrung des Elektronenstrahls einer Lauffeldroehre

Publications (1)

Publication Number Publication Date
NL277862A true NL277862A (xx)

Family

ID=7504183

Family Applications (1)

Application Number Title Priority Date Filing Date
NL277862D NL277862A (xx) 1961-05-02

Country Status (4)

Country Link
US (1) US3181042A (xx)
DE (1) DE1298197B (xx)
GB (1) GB940055A (xx)
NL (1) NL277862A (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5744910A (en) * 1993-04-02 1998-04-28 Litton Systems, Inc. Periodic permanent magnet focusing system for electron beam
US10338002B1 (en) 2016-02-01 2019-07-02 Kla-Tencor Corporation Methods and systems for selecting recipe for defect inspection
US10211021B2 (en) 2016-04-11 2019-02-19 Kla-Tencor Corporation Permanent-magnet particle beam apparatus and method incorporating a non-magnetic metal portion for tunability

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1071237B (xx) * 1953-04-29
NL99653C (xx) * 1956-03-01
US2791718A (en) * 1956-04-23 1957-05-07 Bell Telephone Labor Inc Magnetic structure for traveling wave tubes
NL107303C (xx) * 1957-07-11
US2957102A (en) * 1958-10-02 1960-10-18 Hughes Aircraft Co Self-aligning traveling wave tube and method

Also Published As

Publication number Publication date
DE1298197B (de) 1969-06-26
US3181042A (en) 1965-04-27
GB940055A (en) 1963-10-23

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