FR938859A - Perfectionnements aux tubes à décharge électrique - Google Patents

Perfectionnements aux tubes à décharge électrique

Info

Publication number
FR938859A
FR938859A FR938859DA FR938859A FR 938859 A FR938859 A FR 938859A FR 938859D A FR938859D A FR 938859DA FR 938859 A FR938859 A FR 938859A
Authority
FR
France
Prior art keywords
electric discharge
discharge tubes
tubes
electric
discharge
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
Application number
Other languages
English (en)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR938859A publication Critical patent/FR938859A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/06—Making by means of profiled members other than rolls, e.g. reciprocating flat dies or jaws, moved longitudinally or curvilinearly with respect to each other
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/32—Tubes wherein the X-rays are produced at or near the end of the tube or a part thereof which tube or part has a small cross-section to facilitate introduction into a small hole or cavity

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • X-Ray Techniques (AREA)
FR938859D 1943-04-15 1946-11-29 Perfectionnements aux tubes à décharge électrique Expired FR938859A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US483157A US2362816A (en) 1943-04-15 1943-04-15 Electrical discharge device

Publications (1)

Publication Number Publication Date
FR938859A true FR938859A (fr) 1948-10-27

Family

ID=23918892

Family Applications (1)

Application Number Title Priority Date Filing Date
FR938859D Expired FR938859A (fr) 1943-04-15 1946-11-29 Perfectionnements aux tubes à décharge électrique

Country Status (3)

Country Link
US (1) US2362816A (fr)
BE (1) BE475255A (fr)
FR (1) FR938859A (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2497755A (en) * 1941-06-19 1950-02-14 Hartford Nat Bank & Trust Co X-ray tube with movable directing cone
NL77655C (fr) * 1945-11-26
US2488200A (en) * 1946-07-01 1949-11-15 Gen Electric X Ray Corp Rotating vacuum seal
US2900542A (en) * 1954-09-22 1959-08-18 Harry B Mceuen X-ray apparatus
NL126562C (fr) * 1959-06-11
GB943022A (en) * 1960-04-08 1963-11-27 Ass Elect Ind Improvements in and relating to x-ray tube construction
US3043972A (en) * 1960-04-21 1962-07-10 Avco Corp High temperature implement
US3243624A (en) * 1963-06-14 1966-03-29 Varian Associates Electron tube and socket
GB1084015A (en) * 1964-05-29 1967-09-20 Atomic Energy Authority Uk Flash x-ray tubes
US3510713A (en) * 1966-07-19 1970-05-05 Willard H Bennett Method of and appparatus for producing a highly concentrated beam of electrons
US4126805A (en) * 1975-10-18 1978-11-21 Emi Limited X-ray tubes
US5452720A (en) * 1990-09-05 1995-09-26 Photoelectron Corporation Method for treating brain tumors
US5442678A (en) * 1990-09-05 1995-08-15 Photoelectron Corporation X-ray source with improved beam steering
US5165093A (en) * 1992-03-23 1992-11-17 The Titan Corporation Interstitial X-ray needle
EP1217642A1 (fr) * 2000-12-22 2002-06-26 Radi Medical Technologies AB Refroidissement actif d'un tube miniature à rayons x

Also Published As

Publication number Publication date
US2362816A (en) 1944-11-14
BE475255A (fr) 1947-09-30

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