Megavolt heavy ion injector for a tandem accelerator
| Autor: | P.R. Chagnon, W.C. Miller, C.P. Browne, E.D. Berners, J.W. Kaiser |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 1977 |
| Předmět: |
tandem accelerator
010308 nuclear & particles physics Chemistry heavy ion injector sputter ion source energy resolution electrostatic accelerators mass resolution Injector Tandem accelerator Ion gun 7. Clean energy 01 natural sciences law.invention 010309 optics Nuclear physics ion sources terminal voltage stabilizing system law [PHYS.HIST]Physics [physics]/Physics archives 0103 physical sciences generating voltmeter circuit Heavy ion Hiconex Model 833 |
| Zdroj: | Revue de Physique Appliquée Revue de Physique Appliquée, Société française de physique / EDP, 1977, 12 (10), pp.1407-1411. ⟨10.1051/rphysap:0197700120100140700⟩ |
| ISSN: | 0035-1687 2777-3671 |
| DOI: | 10.1051/rphysap:0197700120100140700⟩ |
| Popis: | A sputter ion source, Hiconex Model 833, is mounted in the terminal of the Notre-Dame ± 4MV electrostatic accelerator. The terminal contains a gridded einzel lens, an accelerating gap for external beam focus, and a 9° electrostatic deflector which prevents neutral caesium atoms from reaching the accelerating tube. Source parameters are observed through a 16 channel modulated light beam telemetry system. The existing terminal voltage stabilizing system which controls belt charge and tank liner voltage was modified for improved response to the generating voltmeter. A new generating voltmeter circuit which has no inherent frequency limitation has been developed and is functionning. Magnetic and electrostatic analysis of the accelerated negative ion beam provide mass resolution of 1.4 % (measured) and energy resolution of 0.1 % (calculated). Electrostatic steering and focusing elements transport the analyzed beam through 34 meters and a 123° deflection for injection into an FN Tandem. In early testing at 2MeV, an analyzed beam of 4 μA of 12C was obtained. We have also measured 50 nA of 11B, completely resolved from the 10B component and also from a large 12C contaminant beam. |
| Databáze: | OpenAIRE |
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