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Title: Single-gap multi-harmonic buncher for NSC pelletron
Authors: Sarkar, A
Ghosh, S
Barua, P
Joshi, R
Ahuja, R
Rao, S
Krishnan, S A
Malyadri, A J
Kumar, R.
Gargari, S
Chopra, S
Kanjilal, D
Datta, S K
Roy, A
Bhowmik, R K
Tilbrook, I R
Clifft, B E
Issue Date: Jan-2001
Publisher: NISCAIR-CSIR, India
Abstract: A single-gap multi-harmonic buncher, developed in collaboration with Argonne National Laboratory, has been installed in the pre-acceleration region of NSC Pelletron. This buncher is required for injecting bunched beam into the booster LINAC, presently under construction. A saw-tooth voltage generated across a single gap formed by a closely spaced pair of grids is used for hunching the de ion beam produced by the Pelletron accelerator. This saw-tooth voltage is produced by adding a sinewave with its three higher harmonics in proper phase and amplitude.28Si beam has been bunched successfully using this buncher. The best FWHM of the bunched beam was 1.5ns and the maximum efficiency of bunching was 50%. The bunching voltage had no steering effect on the beam.
Page(s): 15-19
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.39(01-02) [January-February 2001]

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