| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1687568 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2008 | 4 Pages |
Abstract
Beam experiment has been carried out at the HIMAC synchrotron to study characteristics of a beam extracted with alternate operation of a fast Q-magnet (FQ) to extract and RF-knockout to diffuse a circulating beam. The FQ coil current of a chopping wave was used to find a particle density distribution after the diffusion. Two kinds of RF-knockout signal were used: a colored noise and a frequency modulation signal. The results showed that the spill structure was like an exponential wave pattern roughly and nearly constant by use of the colored noise and was varied with the frequency modulation signal. The colored noise also gave a nearly constant diffusion rate.
Keywords
Related Topics
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Materials Science
Surfaces, Coatings and Films
Authors
Tetsuya Nakanishi, Takuji Furukawa, Koji Noda,