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Title: MEBT Laser Notcher (Chopper) for Booster Loss Reduction

Abstract

The Fermilab Booster, which utilizes multi-turn injection and adiabatic capture, the extraction gap (aka "notch") has been created in the ring at injection energy using fast kickers which deposit the beam in a shielded absorber within the accelerator tunnel. This process, while effective at creating the extraction notch, was responsible for a significant fraction of the total beam power loss in the Booster tunnel and created significant residual activation within the Booster tunnel in the absorber region and beyond. With increasing beam demand from the Experimental Program, the Fermilab Proton Improvement Plan (PIP) initiated an R&D project to build a laser system to create the notch within a linac beam pulse at 750 keV, where activation in not an issue. This talk will discuss moving from R&D to an operational laser system and its integration into the accelerator complex. We will also cover the loss reduction in the Booster, increased efficiency, and increased proton throughput. We will touch on other potential applications for this bunch-by-bunch neutralization approach.

Authors:
ORCiD logo [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]; ORCiD logo [1];  [1]
  1. Fermilab
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1478046
Report Number(s):
FERMILAB-CONF-18-442-AD
1689695
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Conference: 61st ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams, Daejeon, Korea, 06/17-06/22/2018
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Johnson, David, Bhat, Chandra, Chaurize, Salah, Duel, Kevin, Johnson, Todd, Karns, Patrick, Pellico, William, Schupbach, Brian, Seiya, Kiyomi, and Slimmer, David. MEBT Laser Notcher (Chopper) for Booster Loss Reduction. United States: N. p., 2018. Web. doi:10.18429/JACoW-HB2018-THP1WC01.
Johnson, David, Bhat, Chandra, Chaurize, Salah, Duel, Kevin, Johnson, Todd, Karns, Patrick, Pellico, William, Schupbach, Brian, Seiya, Kiyomi, & Slimmer, David. MEBT Laser Notcher (Chopper) for Booster Loss Reduction. United States. doi:10.18429/JACoW-HB2018-THP1WC01.
Johnson, David, Bhat, Chandra, Chaurize, Salah, Duel, Kevin, Johnson, Todd, Karns, Patrick, Pellico, William, Schupbach, Brian, Seiya, Kiyomi, and Slimmer, David. Sun . "MEBT Laser Notcher (Chopper) for Booster Loss Reduction". United States. doi:10.18429/JACoW-HB2018-THP1WC01. https://www.osti.gov/servlets/purl/1478046.
@article{osti_1478046,
title = {MEBT Laser Notcher (Chopper) for Booster Loss Reduction},
author = {Johnson, David and Bhat, Chandra and Chaurize, Salah and Duel, Kevin and Johnson, Todd and Karns, Patrick and Pellico, William and Schupbach, Brian and Seiya, Kiyomi and Slimmer, David},
abstractNote = {The Fermilab Booster, which utilizes multi-turn injection and adiabatic capture, the extraction gap (aka "notch") has been created in the ring at injection energy using fast kickers which deposit the beam in a shielded absorber within the accelerator tunnel. This process, while effective at creating the extraction notch, was responsible for a significant fraction of the total beam power loss in the Booster tunnel and created significant residual activation within the Booster tunnel in the absorber region and beyond. With increasing beam demand from the Experimental Program, the Fermilab Proton Improvement Plan (PIP) initiated an R&D project to build a laser system to create the notch within a linac beam pulse at 750 keV, where activation in not an issue. This talk will discuss moving from R&D to an operational laser system and its integration into the accelerator complex. We will also cover the loss reduction in the Booster, increased efficiency, and increased proton throughput. We will touch on other potential applications for this bunch-by-bunch neutralization approach.},
doi = {10.18429/JACoW-HB2018-THP1WC01},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {7}
}

Conference:
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