Flat-top acceleration system for the variable-energy multiparticle AVF cyclotron
| العنوان: | Flat-top acceleration system for the variable-energy multiparticle AVF cyclotron |
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| المؤلفون: | Satoshi Kurashima, Y. Nakamura, Yukio Kumata, Katsuhiko Saito, Kazuo Arakawa, Nobumasa Miyawaki, Ken-ichi Yoshida, Yasushi Fukumoto, Mitsuhiro Fukuda, Ikuo Ishibori, Susumu Okumura, W. Yokota, T. Nara, Takashi Agematsu |
| المصدر: | Review of Scientific Instruments. 74:2293-2299 |
| بيانات النشر: | AIP Publishing, 2003. |
| سنة النشر: | 2003 |
| مصطلحات موضوعية: | Physics, Ion beam, Amplifier, Cyclotron, Dissipation, Computational physics, law.invention, Acceleration, law, Harmonics, Physics::Accelerator Physics, Atomic physics, Instrumentation, Beam (structure), Voltage |
| الوصف: | A flat-top acceleration system appropriate to minimization of energy spread in an ion beam was investigated for the JAERI AVF cyclotron. A combination of the fundamental- and the fifth-harmonic voltages to obtain a homogeneous energy gain distribution of accelerated particles is ideally suited to a variable-energy multiparticle cyclotron using acceleration harmonics of 1, 2, and 3. The flat topping of the energy gain distribution using the fifth harmonics has the advantages of minimizing amplifier power, reducing power dissipation in a resonator, and increasing the energy gain per turn. The flat-top acceleration system was designed to reduce the energy spread to 0.02%, which fulfills a beam focusing condition for production of a microbeam with a beam spot diameter of 1 μm. Tolerable fluctuations of acceleration voltages, required to achieve the energy spread of 0.02%, were 2.0×10−4 for the fundamental voltage and 1.0×10−3 for the fifth-harmonic voltage. Both fundamental- and fifth-harmonic phases were req... |
| تدمد: | 1089-7623 0034-6748 |
| DOI: | 10.1063/1.1556941 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::c44c5486819f041426ee98c781f45af7 https://doi.org/10.1063/1.1556941 |
| رقم الانضمام: | edsair.doi...........c44c5486819f041426ee98c781f45af7 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10897623 00346748 |
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| DOI: | 10.1063/1.1556941 |