Heavy ion acceleration at the Heidelberg Tandem postaccelerator combination

Conference · Wed Apr 01 04:00:00 EST 1981 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:5470860

Huck, B; Ingwersen, H; Jaeschke, E; Kolb, B; Repnov, R; Walcher, Th

At the MPI fur Kernphysik the range of heavy ions available with energy higher than 5 MeV/N has been extended to masses of about A=100 by combining the upgraded 13 MV MP-Tandem with a normal conducting RF-linac consisting of 32 independently phased spiral resonators. A first part of the linac of 10 resonators had already been operated between 1977 and 1979 with maximum effective voltages of 3.3 MV (CW) and 5.5 MV (pulse mode). After completion the extended booster now yields 9.7 MV in CW mode and 18.5 MV in pulse mode (duty factor 0.25). The high flexibility of the booster guaranteed by the independent phasing principle allows operation of the machine in the mass range of A=10 to A=100 with nearly constant acceleration voltage and with almost negligible set up times due to the flexible computer control. The maximum energies obtained so far are for some ions: 164 MeV /sup 12/C, 332 MeV /sup 32/S, 337 MeV /sup 35/Cl, 476 MeV /sup 79/Br and 511 MeV /sup 127/J. The tandemlike beam quality of the Tandem Booster combination (radial emittance < 2 ..pi.. mm mrad, energy resolution < 10/sup -3/ (with debuncher)) and the available beam pulse width of less than 100 ps are an important contribution to the heavy ion nuclear and atomic physics experiments at MPI since March 1980. The overall availability of the postaccelerator together with the MP Tandem was above 80% of the scheduled user beam time.

• Research Organization: Max-Planck-Institut fur Kernphysik, Heidelberg
• OSTI ID: 5470860
• Report Number(s): CONF-801111-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-28:2
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities &amp; Equipment
ACCELERATORS
BEAMS
CAMAC SYSTEM
CHARGED PARTICLES
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
ELECTRONIC EQUIPMENT
ELECTROSTATIC ACCELERATORS
EQUIPMENT
HEAVY IONS
ION BEAMS
IONS
PERFORMANCE
RESONATORS
RF SYSTEMS
TANDEM ELECTROSTATIC ACCELERATORS