Title :
First beam tests of the INS split coaxial RFQ for radioactive nuclei
Author :
Arai, S. ; Imanishi, A. ; Niki, K. ; Okada, M. ; Takeda, Y. ; Tojyo, E. ; Tokuda, N.
Author_Institution :
Inst. for Nucl. Study, Tokyo Univ., Japan
Abstract :
A 25.5-MHz split coaxial RFQ has come into operation at INS. This linac was designed so as to accelerate ions with a charge-to-mass ratio greater than 1/30 from 2 to 172 keV/u. The maximum intervane voltage so far achieved is 91 kV. We have conducted acceleration tests by using Ne + and N+ ions. Through N+ acceleration we obtained the following preliminary results. The output-beam emittances are well in the design ellipses of 0.06 π cm·mrad (normalized). The data of transmission efficiency vs intervane voltage agree well with PARMTEQ results. The transmission at the nominal voltage is measured to be 90%
Keywords :
accelerator RF systems; ion accelerators; 25.5 MHz; 91 kV; INS; N; N+; Ne; Ne+; PARMTEQ; intervane voltage; output-beam emittance; radioactive nuclei; split coaxial RFQ; transmission efficiency; Acceleration; Aging; Calibration; Coaxial components; Life estimation; Particle beams; Power generation; Structural beams; Testing; Voltage;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.504657
