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Title: Fermilab Recycler Collimation System Design

Abstract

To provide 700 kW proton beams for neutrino production in the NuMI facility, we employ slip stacking in the Recycler with transfer to the Main Injector for recapture and acceleration. Slip stacking with 12 Booster batches per 1.33 sec cycle of the Main Injector has been implemented and briefly tested while extensive operation with 8 batches and 10 batches per MI cycle has been demonstrated. Operation in this mode since 2013 shows that loss localization is an essential component for long term operation. Beam loss in the Recycler will be localized in a collimation region with design capability for absorbing up to 2 kW of lost protons in a pair of 20-Ton collimators (absorbers). This system will employ a two stage collimation with a thin molybdenum scattering foil to define the bottom edge of both the injected and decelerated-for-slipping beams. Optimization and engineering design of the collimator components and radiation shielding are based on comprehensive MARS15 simulations predicting high collimation efficiency as well as tolerable levels of prompt and residual radiation. The system installation during the Fermilab 2016 facility shutdown will permit commissioning in the subsequent operating period.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [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)
OSTI Identifier:
1329664
Report Number(s):
FERMILAB-CONF-16-425-AD
1493780
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Conference: 2nd North American Particle Accelerator Conference, Chicago, Illinois, USA, 10/09-10/14/2016
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Brown, B. C., Adamson, P., Ainsworth, R., Capista, D., Hazelwood, K., Kourbanis, I., Mokhov, N. V., Morris, D. K., Murphy, M., Sidorov, V., Stern, E., Tropin, I., and Yang, M-J. Fermilab Recycler Collimation System Design. United States: N. p., 2016. Web.
Brown, B. C., Adamson, P., Ainsworth, R., Capista, D., Hazelwood, K., Kourbanis, I., Mokhov, N. V., Morris, D. K., Murphy, M., Sidorov, V., Stern, E., Tropin, I., & Yang, M-J. Fermilab Recycler Collimation System Design. United States.
Brown, B. C., Adamson, P., Ainsworth, R., Capista, D., Hazelwood, K., Kourbanis, I., Mokhov, N. V., Morris, D. K., Murphy, M., Sidorov, V., Stern, E., Tropin, I., and Yang, M-J. 2016. "Fermilab Recycler Collimation System Design". United States. https://www.osti.gov/servlets/purl/1329664.
@article{osti_1329664,
title = {Fermilab Recycler Collimation System Design},
author = {Brown, B. C. and Adamson, P. and Ainsworth, R. and Capista, D. and Hazelwood, K. and Kourbanis, I. and Mokhov, N. V. and Morris, D. K. and Murphy, M. and Sidorov, V. and Stern, E. and Tropin, I. and Yang, M-J.},
abstractNote = {To provide 700 kW proton beams for neutrino production in the NuMI facility, we employ slip stacking in the Recycler with transfer to the Main Injector for recapture and acceleration. Slip stacking with 12 Booster batches per 1.33 sec cycle of the Main Injector has been implemented and briefly tested while extensive operation with 8 batches and 10 batches per MI cycle has been demonstrated. Operation in this mode since 2013 shows that loss localization is an essential component for long term operation. Beam loss in the Recycler will be localized in a collimation region with design capability for absorbing up to 2 kW of lost protons in a pair of 20-Ton collimators (absorbers). This system will employ a two stage collimation with a thin molybdenum scattering foil to define the bottom edge of both the injected and decelerated-for-slipping beams. Optimization and engineering design of the collimator components and radiation shielding are based on comprehensive MARS15 simulations predicting high collimation efficiency as well as tolerable levels of prompt and residual radiation. The system installation during the Fermilab 2016 facility shutdown will permit commissioning in the subsequent operating period.},
doi = {},
url = {https://www.osti.gov/biblio/1329664}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 04 00:00:00 EDT 2016},
month = {Tue Oct 04 00:00:00 EDT 2016}
}

Conference:
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