Bunch Shaping by RF Voltage Modulation with a Band-limited White Signal.
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Accession number;99A1045398
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| Title;Bunch Shaping by RF Voltage Modulation with a Band-limited White Signal. |
| Author;
TOYAMA T
(High Energy Accelerator Res. Organization(kek), Ibaraki, Jpn)
ARAKAWA D
(High Energy Accelerator Res. Organization(kek), Ibaraki, Jpn)
IGARASHI S
(High Energy Accelerator Res. Organization(kek), Ibaraki, Jpn)
KISHIRO J
(High Energy Accelerator Res. Organization(kek), Ibaraki, Jpn)
NAKAMURA E
(High Energy Accelerator Res. Organization(kek), Ibaraki, Jpn)
SHIMOSAKI Y
(High Energy Accelerator Res. Organization(kek), Ibaraki, Jpn)
SOMEYA H
(High Energy Accelerator Res. Organization(kek), Ibaraki, Jpn)
TAKAYAMA K
(High Energy Accelerator Res. Organization(kek), Ibaraki, Jpn)
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Journal Title;Proc Symp Accel Sci Technol
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Journal Code:F0512B
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ISSN:0914-2789
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VOL.12th;NO.;PAGE.96-98(1999)
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| Figure&Table&Reference;FIG.7, REF.10 |
| Pub. Country;Japan |
| Language;English |
| Abstract;In the 12-GeV synchrotron of the KEK PS, beam losses during the injection flat bottom and at the transition energy have been a serious and final obstacles to beam intensity upgrade for the long-baseline neutrino-oscillation experiment. To supplement existing schemes to cope with the losses, an additional method has been proposed: uniform bunch formation by modulating acceleration rf voltage with a band-limited white signal. A unique feature of this method is to increase the bunching factor without the longitudinal emittance blow-up, in principle. The temporal evolution of the beam distribution and the time constant have been evaluated through computer simulations and analytic considerations. This method has been successfully applied to the KEK PS. The intensity goal of 6*1012 protons per pulse has been achieved since May, 1999. (author abst.) |
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