Diagnostic and numerical studies of the IPNS LINAC with a recently installed buncher amplifier.

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Description

The Intense Pulse Neutron Source (IPNS) 50-MeV Drift-Tube Linac uses a single-gap, single-harmonic buncher cavity to increase transmission efficiency. However, it is also the case that the linac output beam longitudinal and transverse emittance is dependent on buncher amplitude and phase as well as with the input beam energy and emittance. The linac is the injector for a Rapid Cycling Synchrotron (RCS) that increases the beam energy to 450 MeV and shortens the pulse to the 100 ns region. The RCS is operated loss-limited, and its operating current is strongly dependent on the properties (emittance, and its variation during the ... continued below

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3 pages

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Dooling, J. C.; Donley, L. I.; McMichael, G. E. & Stipp, V. F. September 17, 2002.

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Description

The Intense Pulse Neutron Source (IPNS) 50-MeV Drift-Tube Linac uses a single-gap, single-harmonic buncher cavity to increase transmission efficiency. However, it is also the case that the linac output beam longitudinal and transverse emittance is dependent on buncher amplitude and phase as well as with the input beam energy and emittance. The linac is the injector for a Rapid Cycling Synchrotron (RCS) that increases the beam energy to 450 MeV and shortens the pulse to the 100 ns region. The RCS is operated loss-limited, and its operating current is strongly dependent on the properties (emittance, and its variation during the pulse) of the beam from the linac. A new amplifier has been installed allowing for better amplitude and phase control of buncher rf. This new amplifier gives independent control of amplitude and phase, permitting more systematic studies of the relation between linac and RCS performance. This paper presents the results of recent studies where we characterize beam properties that lead to high efficiency operation in both linac and RCS, and compare them with simulation calculations.

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3 pages

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  • 21st International Linear Accelerator Conference (LINAC 2002), Gyeongju (KR), 08/19/2002--08/23/2002

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  • Report No.: ANL/IPNS/CP-107371
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 801596
  • Archival Resource Key: ark:/67531/metadc735727

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  • September 17, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • March 29, 2016, 4:37 p.m.

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Dooling, J. C.; Donley, L. I.; McMichael, G. E. & Stipp, V. F. Diagnostic and numerical studies of the IPNS LINAC with a recently installed buncher amplifier., article, September 17, 2002; Illinois. (digital.library.unt.edu/ark:/67531/metadc735727/: accessed August 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.