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Title: A 100 GeV SLAC Linac

Abstract

The SLAC beam energy can be increased from the current 50 GeV to 100 GeV, if we change the operating frequency from the present 2856 MHz to 11424 MHz, using technology developed for the NLC. We replace the power distribution system with a proposed NLC distribution system as shown in Fig. 1. The four 3 meter s-band 820 nS fill time accelerator sections are replaced by six 2 meter x-band 120 nS fill time sections. Thus the accelerator length per klystron retains the same length, 12 meters. The 4050 65MW-3.5 {micro}S klystrons are replaced by 75MW-1.5 {micro}S permanent magnet klystrons developed here and in Japan. The present input to the klystrons would be multiplied by a factor of 4 and possibly amplified. The SLED [1] cavities have to be replaced. The increase in beam voltage is due to the higher elastance to group velocity ratio, higher compression ratio and higher unloaded to external Q ratio of the new SLED cavities. The average power input is reduced because of the narrower klystron pulse width and because the klystron electro-magnets are replaced by permanent magnets.

Authors:
Publication Date:
Research Org.:
Stanford Linear Accelerator Center, Menlo Park, CA (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
799011
Report Number(s):
SLAC-AP-140
TRN: US0205154
DOE Contract Number:  
AC03-76SF00515
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 7 Mar 2002
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; CAVITIES; DISTRIBUTION; JAPAN; KLYSTRONS; LINEAR ACCELERATORS; PERMANENT MAGNETS; POWER DISTRIBUTION SYSTEMS; POWER INPUT; VELOCITY

Citation Formats

Farkas, Zoltan D. A 100 GeV SLAC Linac. United States: N. p., 2002. Web. doi:10.2172/799011.
Farkas, Zoltan D. A 100 GeV SLAC Linac. United States. doi:10.2172/799011.
Farkas, Zoltan D. Thu . "A 100 GeV SLAC Linac". United States. doi:10.2172/799011. https://www.osti.gov/servlets/purl/799011.
@article{osti_799011,
title = {A 100 GeV SLAC Linac},
author = {Farkas, Zoltan D},
abstractNote = {The SLAC beam energy can be increased from the current 50 GeV to 100 GeV, if we change the operating frequency from the present 2856 MHz to 11424 MHz, using technology developed for the NLC. We replace the power distribution system with a proposed NLC distribution system as shown in Fig. 1. The four 3 meter s-band 820 nS fill time accelerator sections are replaced by six 2 meter x-band 120 nS fill time sections. Thus the accelerator length per klystron retains the same length, 12 meters. The 4050 65MW-3.5 {micro}S klystrons are replaced by 75MW-1.5 {micro}S permanent magnet klystrons developed here and in Japan. The present input to the klystrons would be multiplied by a factor of 4 and possibly amplified. The SLED [1] cavities have to be replaced. The increase in beam voltage is due to the higher elastance to group velocity ratio, higher compression ratio and higher unloaded to external Q ratio of the new SLED cavities. The average power input is reduced because of the narrower klystron pulse width and because the klystron electro-magnets are replaced by permanent magnets.},
doi = {10.2172/799011},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {3}
}

Technical Report:

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