GB1309366A - Ion source for a cyclotron - Google Patents

Ion source for a cyclotron

Info

Publication number
GB1309366A
GB1309366A GB1963371A GB1963371A GB1309366A GB 1309366 A GB1309366 A GB 1309366A GB 1963371 A GB1963371 A GB 1963371A GB 1963371 A GB1963371 A GB 1963371A GB 1309366 A GB1309366 A GB 1309366A
Authority
GB
United Kingdom
Prior art keywords
discharge
tip
chamber
carbide
june
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
GB1963371A
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.)
Gesellschaft fuer Kernforschung mbH
Original Assignee
Gesellschaft fuer Kernforschung mbH
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 Gesellschaft fuer Kernforschung mbH filed Critical Gesellschaft fuer Kernforschung mbH
Publication of GB1309366A publication Critical patent/GB1309366A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J27/00—Ion beam tubes
    • H01J27/02—Ion sources; Ion guns
    • H01J27/04—Ion sources; Ion guns using reflex discharge, e.g. Penning ion sources
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H13/00—Magnetic resonance accelerators; Cyclotrons

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electron Sources, Ion Sources (AREA)

Abstract

1309366 Ion sources KERNFORSCHUNG mbH GES FUER 9 June 1971 [16 June 1970] 19633/71 Heading H1D A metal wire stirrup 12 acting as a thermionic cathode in an ion source for a cyclotron is provided with a tip 13 of refractory metal or metal carbide located opposite an electron reflector 7. The discharge chamber comprises an enlarged lower part 5 of Mo and a narrower neck portion 2 of tantalum carbide. The discharge is constructed by a magnetic field located in or parallel to the plane of the discharge. The reflector 7 of W or hafnium carbide is insulated from the chamber 2 by an insulator 6 of boron nitrite which may carry a Mo plate to prevent evaporation of the insulator. The tip 13 which may be cylindrical, as shown, or conical is preferably made of hafnium carbide and is located in a holder 15 of Ta having a pin 17 which is brazed into a bore in the bight 14 of the W cathode 12. Alternatively, a pin 17 may be formed on a tip 13 of W, the holder 15 being omitted. Ions are extracted through a slot 9 in the wall of the discharge chamber by an electrode 8. The chamber is filled with deuterium, hydrogen, or helium at a pressure of 0À2 to 0À4 torr.
GB1963371A 1970-06-16 1971-06-09 Ion source for a cyclotron Expired GB1309366A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702029571 DE2029571C3 (en) 1970-06-16 1970-06-16 Ion source for a cyclotron

Publications (1)

Publication Number Publication Date
GB1309366A true GB1309366A (en) 1973-03-07

Family

ID=5774056

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1963371A Expired GB1309366A (en) 1970-06-16 1971-06-09 Ion source for a cyclotron

Country Status (4)

Country Link
DE (1) DE2029571C3 (en)
FR (1) FR2097902A5 (en)
GB (1) GB1309366A (en)
NL (1) NL150610B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108419356A (en) * 2018-05-16 2018-08-17 中国工程物理研究院流体物理研究所 Method and ion source apparatus for promoting the cyclotron internal ion-source service life
CN113038686A (en) * 2021-03-15 2021-06-25 合肥中科离子医学技术装备有限公司 Device for maintaining ion source of superconducting cyclotron

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2242986C3 (en) * 1972-09-01 1981-05-07 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Hot cathode
DE8717818U1 (en) * 1987-01-28 1990-05-23 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe, De

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108419356A (en) * 2018-05-16 2018-08-17 中国工程物理研究院流体物理研究所 Method and ion source apparatus for promoting the cyclotron internal ion-source service life
CN108419356B (en) * 2018-05-16 2023-09-22 中国工程物理研究院流体物理研究所 Method for improving service life of ion source in cyclotron and ion source equipment
CN113038686A (en) * 2021-03-15 2021-06-25 合肥中科离子医学技术装备有限公司 Device for maintaining ion source of superconducting cyclotron

Also Published As

Publication number Publication date
FR2097902A5 (en) 1972-03-03
NL150610B (en) 1976-08-16
DE2029571A1 (en) 1971-12-23
DE2029571B2 (en) 1980-01-10
NL7108271A (en) 1971-12-20
DE2029571C3 (en) 1980-09-11

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee