| Autor: |
J. Yoshizawa, A. Ando, A. Mizobuchi, Toshiyuki Hattori, M. Yoshizawa, Ryozo Nagai, K. Noda, M. Tomizawa, K. Chida, Mitsutaka Kanazawa, Y. Arakaki, Hideshi Muto, Akira Noda |
| Rok vydání: |
1993 |
| Předmět: |
|
| Zdroj: |
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 326:399-406 |
| ISSN: |
0168-9002 |
| DOI: |
10.1016/0168-9002(93)90842-6 |
| Popis: |
A slow beam extraction system using the third order resonance has been constructed at TARN II and beam extraction tests have been performed. By the ordinary scheme where the tune is shifted to the resonance with ramping the excitation strength of the lattice quadrupole magnets, an extraction efficiency of 90% is attained. A new scheme increasing the horizontal emittance of the circulating beam is applied to extract the beam. A very long beam spill of 800 s is obtained by this scheme. A method using a transverse rf field is also studied experimentally, resulting in an extracted beam with smaller emittance. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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