TY - JOUR
T1 - Strong-focusing in tandem accelerator with alternating voltage gradient
AU - Sagara, K.
AU - Nakashima, T.
AU - Nakamura, M.
AU - Okuda, H.
AU - Yagita, T.
AU - Tsuruta, K.
AU - Ikeda, N.
AU - Morinobu, S.
N1 - Funding Information:
The authors wish to thank T. Maeda and H. Koga for their support in fabricating electronic devises and in machining parts for the accel–decel operation. This work was supported in part by Japan Ministry for Education, Science and Culture under Grant-in-Aids No. 10874044 and No. 08404017.
PY - 2002/5/21
Y1 - 2002/5/21
N2 - A new method to obtain low-energy high-intensity beams from a tandem accelerator of a high design-voltage is presented. In this method, the beam undergoes repeated actions of acceleration and deceleration from alternating voltage gradient along the beam axis, so that the beam divergence is minimized. The practical test was carried out at the 10 MV tandem accelerator at Kyushu University, and the beam transmission efficiency at a low operation voltage of 1 MV was found to be an order of magnitude increased. The method also enables the accelerator to stand a high beam load. The necessary changes in the accelerator configuration are quite simple and easily achievable at a low cost.
AB - A new method to obtain low-energy high-intensity beams from a tandem accelerator of a high design-voltage is presented. In this method, the beam undergoes repeated actions of acceleration and deceleration from alternating voltage gradient along the beam axis, so that the beam divergence is minimized. The practical test was carried out at the 10 MV tandem accelerator at Kyushu University, and the beam transmission efficiency at a low operation voltage of 1 MV was found to be an order of magnitude increased. The method also enables the accelerator to stand a high beam load. The necessary changes in the accelerator configuration are quite simple and easily achievable at a low cost.
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U2 - 10.1016/S0168-9002(01)02063-0
DO - 10.1016/S0168-9002(01)02063-0
M3 - Article
AN - SCOPUS:0037150146
SN - 0168-9002
VL - 484
SP - 88
EP - 94
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 - 1-3
ER -