US2227030A - Electron amplifier - Google Patents

Electron amplifier Download PDF

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Publication number
US2227030A
US2227030A US188951A US18895138A US2227030A US 2227030 A US2227030 A US 2227030A US 188951 A US188951 A US 188951A US 18895138 A US18895138 A US 18895138A US 2227030 A US2227030 A US 2227030A
Authority
US
United States
Prior art keywords
photo
cathode
nets
electrodes
multiplying
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.)
Expired - Lifetime
Application number
US188951A
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English (en)
Inventor
Schlesinger Kurt
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.)
LOEWE RADIO Inc
Original Assignee
LOEWE RADIO Inc
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 LOEWE RADIO Inc filed Critical LOEWE RADIO Inc
Application granted granted Critical
Publication of US2227030A publication Critical patent/US2227030A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/04—Electron multipliers

Definitions

  • these nets can also be included in the cooling by employ- "ing good heat-conductive supports l2 made preferably of copper and having a sufficient diameter for supporting the first concentrating cylinder 3, and at the same time placing these supports in good thermal contact with the glass body [ID by 3 and l are in any case electrically connected.
  • the cylinder 3 then exerts a cooling effect, particularly if the surface of the concentrating cylinder is designed as a black or approximately black body.
  • the last rests of basic noise cannot be overcome by measures of any kind. It can merely be accomplished that in the case of black transmission, the noise disappears entirely which condition is sufficient for a good transmission.
  • a photo-electric tube for multiplying photo-electric currents by means of secondary electron emission comprising a primary photocathode, a series of secondary cathodes activated for secondary electron emission, and receptacle means supporting said photo-cathode for cooling said photo-cathode below room temperature.

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
US188951A 1937-02-16 1938-02-05 Electron amplifier Expired - Lifetime US2227030A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE512711X 1937-02-16

Publications (1)

Publication Number Publication Date
US2227030A true US2227030A (en) 1940-12-31

Family

ID=6548209

Family Applications (1)

Application Number Title Priority Date Filing Date
US188951A Expired - Lifetime US2227030A (en) 1937-02-16 1938-02-05 Electron amplifier

Country Status (4)

Country Link
US (1) US2227030A (xx)
BE (1) BE426405A (xx)
FR (1) FR833741A (xx)
GB (2) GB517806A (xx)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2702865A (en) * 1949-04-02 1955-02-22 Texas Co Electron multiplier
US2727119A (en) * 1954-11-02 1955-12-13 Electronics Corp America Radiation-sensitive device
US2920205A (en) * 1957-10-02 1960-01-05 Wolfgang J Choyke Radiant energy detector
US3333133A (en) * 1948-04-15 1967-07-25 George A Morton Pick up tube with infra-red sensitive thermionic cathode with cooling means spaced from the thermionic cathode

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3333133A (en) * 1948-04-15 1967-07-25 George A Morton Pick up tube with infra-red sensitive thermionic cathode with cooling means spaced from the thermionic cathode
US2702865A (en) * 1949-04-02 1955-02-22 Texas Co Electron multiplier
US2727119A (en) * 1954-11-02 1955-12-13 Electronics Corp America Radiation-sensitive device
US2920205A (en) * 1957-10-02 1960-01-05 Wolfgang J Choyke Radiant energy detector

Also Published As

Publication number Publication date
GB512711A (en) 1939-09-25
FR833741A (fr) 1938-10-28
BE426405A (xx)
GB517806A (en) 1940-02-08

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