Report on booster high pulse repetition rate operation tests conducted on March 29, 1998

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The proposed MiniBooNE experiment requires pulses of 8 GeV beam from the Fermilab Booster at an average repetition rate of 5 Hz and expects to run simultaneously with both Tevatron Collider and NUMI experiment operation. NUMI and antiproton production for the Tevatron Collider together require Booster beam on six consecutive 15 Hz cycles each 1.867 seconds (i.e. every twenty-eight 15 Hz cycles). In this same interval, nine to ten beam pulses are necessary to satisfy MiniBooNE. Booster is therefore expected to accelerate beam on sixteen of every twenty-eight 15 Hz cycles, corresponding to average beam pulse operation of 8.6 Hz. ... continued below

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195 pages

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Webber, R.C. April 8, 1999.

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Description

The proposed MiniBooNE experiment requires pulses of 8 GeV beam from the Fermilab Booster at an average repetition rate of 5 Hz and expects to run simultaneously with both Tevatron Collider and NUMI experiment operation. NUMI and antiproton production for the Tevatron Collider together require Booster beam on six consecutive 15 Hz cycles each 1.867 seconds (i.e. every twenty-eight 15 Hz cycles). In this same interval, nine to ten beam pulses are necessary to satisfy MiniBooNE. Booster is therefore expected to accelerate beam on sixteen of every twenty-eight 15 Hz cycles, corresponding to average beam pulse operation of 8.6 Hz. The Booster cycle rate is nominally 15 Hz although not all Booster equipment is capable of pulsing continuously at that rate. The Booster gradient magnets are cycled continuously at 15 Hz, but the RF systems and pulsed injection and extraction devices are not. These devices are triggered on each beam cycle and on one or two 15 Hz cycles immediately prior to each beam cycle (or burst of 15 Hz beam cycles). This pre-pulsing is done to establish a fresh charge on energy storage elements in the power supplies and to reset remnant fields in preparation for beam. The pre-pulses result in an average pulse repetition rate for the power equipment somewhat higher than that of the beam. A high pulse repetition rate test of all Booster systems was conducted on March 29, 1998, to identify equipment in need of modification, upgrade, or replacement in order to satisfy the expectations identified above. In general, Booster beam was not run during these tests. The procedure and results of the tests are described in this note.

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195 pages

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INIS; OSTI as DE00005495

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  • Other Information: PBD: 8 Apr 1999

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  • Report No.: FERMILAB-TM-2074
  • Grant Number: AC02-76CH03000
  • DOI: 10.2172/5495 | External Link
  • Office of Scientific & Technical Information Report Number: 5495
  • Archival Resource Key: ark:/67531/metadc691748

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  • April 8, 1999

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  • Aug. 14, 2015, 8:43 a.m.

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  • April 1, 2016, 5:47 p.m.

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Webber, R.C. Report on booster high pulse repetition rate operation tests conducted on March 29, 1998, report, April 8, 1999; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc691748/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.