TY - JOUR
T1 - Development of RF acceleration system for 150 MeV FFAG accelerator
AU - Yonemura, Y.
AU - Takagi, A.
AU - Yoshii, M.
AU - Mori, Y.
AU - Aiba, M.
AU - Okabe, K.
AU - Ikeda, N.
PY - 2007/6/21
Y1 - 2007/6/21
N2 - An RF accelerating system was developed for the 150 MeV FFAG accelerator to demonstrate rapid cycling acceleration. The 150 MeV FFAG accelerator has been developed as a prototype for various applications, such as proton cancer therapy. To achieve rapid cycling acceleration, a high-field gradient and a broadband impedance of the RF cavity were necessary. Therefore, we employed a magnetic alloy (MA) for a core material. The required field gradient and the bandwidth were 35 kV/m and 3.0 ± 1.5 MHz, respectively. Because of the strong fringing field of the focusing magnets of the FFAG accelerator, the RF cavity had to be magnetically shielded. An effective cooling system for the MA cores was also needed because of the large power dissipation of more than 1 W / cm3. We have developed an RF system satisfying these requirements and successfully demonstrated a rapid cycling acceleration of 100 Hz.
AB - An RF accelerating system was developed for the 150 MeV FFAG accelerator to demonstrate rapid cycling acceleration. The 150 MeV FFAG accelerator has been developed as a prototype for various applications, such as proton cancer therapy. To achieve rapid cycling acceleration, a high-field gradient and a broadband impedance of the RF cavity were necessary. Therefore, we employed a magnetic alloy (MA) for a core material. The required field gradient and the bandwidth were 35 kV/m and 3.0 ± 1.5 MHz, respectively. Because of the strong fringing field of the focusing magnets of the FFAG accelerator, the RF cavity had to be magnetically shielded. An effective cooling system for the MA cores was also needed because of the large power dissipation of more than 1 W / cm3. We have developed an RF system satisfying these requirements and successfully demonstrated a rapid cycling acceleration of 100 Hz.
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U2 - 10.1016/j.nima.2006.11.072
DO - 10.1016/j.nima.2006.11.072
M3 - Article
AN - SCOPUS:34248657284
SN - 0168-9002
VL - 576
SP - 294
EP - 300
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 2-3
ER -
