Heidelberg 3MV c-w heavy ion postaccelerator section using independently phased spiral resonators

Conference · Wed Jun 01 04:00:00 EDT 1977 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:7294959

Jaeschke, E; Repnow, R; Walcher, T; Ingwersen, H; Ihmels, G; Kolb, B; Schwarz, H; Gamp, A

The Heidelberg 3MV heavy ion postaccelerator section based on independently phased normal conducting spiral resonators working at 108 MHz is described. The design velocity of the spiral resonators is ..beta../sub 0/ = 0.10. The peak voltage drop is 0.37 MV at 20 kW C-W input power (0.74 MV at 80 kW, duty factor 0.25) corresponding to a peak accelerating field of 1.7 MV/m (3.4 MV/m) averaged over the external length of the resonator. Using a synchronous phase of phi = -20/sup 0/ gives a maximum effective voltage of 0.35/sup s/MV (0.7 MV). The resonators are stacked in modules of four with one external quadrupole doublet. The total effective voltage of this first test section of the Heidelberg postaccelerator under construction is 3 MV C-W (6 MV d.f. 0.25) providing ion energies up to 6 MeV/nucleon at mass A=40. The postaccelerator will be integrated into the existing experimental area. Beam matching to the longitudinal acceptance of the postaccelerator is done by a separate spiral resonator as rebuncher. The high quality of the tandem beam with respect to longitudinal and transverse phase space is maintained in the designed postaccelerator.

• Research Organization: Max-Planck-Institut fuer Kernphysik, Heidelberg
• OSTI ID: 7294959
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-24:3
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430100* -- Particle Accelerators-- Design
Development
& Operation
ACCELERATORS
BEAM TRANSPORT
CAVITY RESONATORS
CONFIGURATION
FUNCTIONAL MODELS
HEAVY ION ACCELERATORS
PERFORMANCE TESTING
RF SYSTEMS
SPIRAL CONFIGURATION
TESTING