A One‐Mev/Nucleon Sloan and Lawrence Heavy‐Ion Linear Accelerator
| Autor: | V. E. Miller, S. Devons, G. Nassibian, J. R. J. Bennett, R. W. R. Hoisington, D. Broadbent |
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| Rok vydání: | 1961 |
| Předmět: | |
| Zdroj: | Review of Scientific Instruments. 32:1316-1326 |
| ISSN: | 1089-7623 0034-6748 |
| DOI: | 10.1063/1.1717241 |
| Popis: | A description is given of a small heavy‐ion linear accelerator based on the use of a twin transmission line as first suggested by Sloan and Lawrence. Ions are accepted if their e/m values are ⅛ or greater (relative to the proton) and are accelerated to a final energy of 1.04 Mev/nucleon. The accelerator has 40 drift tubes fitted with focusing grids, and about 350 kw of pulsed rf are needed for ions of e/m=⅛. The radio frequency is 25 Mc, and the accelerator is pulsed at up to 50 pps with a pulse length of 500 μsec. Injection velocity is 0.007 c, corresponding to a dc acceleration from the ion source through 180 kv for an ion of e/m=⅛. Ions are produced in a pulsed dc arc of the Penning type operating in a magnetic field of 1000 gauss and the dc accelerating voltage is supplied by an electrostatic generator. Typical pulsed meter currents so far obtained are, for He+, input 4 ma, output 150 μa; for N2+, input 3 ma, output 75 μa. The accelerator is the first stage of three which will take the ions to a final... |
| Databáze: | OpenAIRE |
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