Construction and operation of a test RFQ linac for heavy ions
Creators
- 1. Tokyo Univ., Tanashi (Japan). Inst. for Nuclear Study
- 2. National Inst. of Radiological Sciences, Chiba (Japan)
Description
The INS radio-frequency quadrupole (RFQ) linac LITL (Lithium Ion Test Linac), a four-vane structure driven at 100 MHz by a single loop coupler, has been constructed. A field uniformity with an error of +-1 % has been obtained by using capacitive end tuners and inductive side tuners. An unloaded Q value of 11,000, 60% of the ideal value, has been obtained. Beam dynamics has been studied by means of a formulation of the potential function for the radial matching section and for a method of rapid bunching. Ion beams such as H+, H2+, 3He+, and 6,7Li+ are injected at 5 keV/amu and accelerated up to 138 keV/amu through the vane length of 1.22 m. The results of the beam tests agree with computer simulations with PARMTEQ, and the techniques developed in this work have been validated. (author)
Additional details
Publishing Information
- Journal Title
- Part. Accel.
- Journal Volume
- 20
- Journal Issue
- 3-4
- Series
- Part. Accel.
- Journal Page Range
- 183-209
- ISSN
- 0031-2460
- CODEN
- PLACB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- Switzerland
- INIS RN
- 18041972
- Subject category
- S43: PARTICLE ACCELERATORS;
- Descriptors DEI
- BEAM DYNAMICS; HEAVY IONS; HELIUM 3 BEAMS; LINEAR ACCELERATORS; LITHIUM 6 BEAMS; LITHIUM 7 BEAMS; P CODES; QUADRUPOLE LINACS; RF SYSTEMS
- Descriptors DEC
- ACCELERATORS; BEAMS; CHARGED PARTICLES; COMPUTER CODES; DYNAMICS; ION BEAMS; IONS; MECHANICS