Simulation of the CBETA 4-pass FFAG ERL using field maps — exclusively

Meot, Francois; Berg, J. S.; Brooks, S.; Trbojevic, D.; Tsoupas, N.; Crittenden, J.

doi:10.1142/S0217751X19420387

Title: Simulation of the CBETA 4-pass FFAG ERL using field maps — exclusively

Abstract

The Cornell-BNL Electron Test Accelerator (CBETA), a four-pass, 150 MeV energy recovery linac (ERL), is now in construction at Cornell. Commissioning commenced on March 2019. A particularity of CBETA is that a single channel loop recirculates the four energies (42, 78, 114 and 150 MeV). The return loop arcs are based on fixed-field alternating gradient (FFAG) optics. The loop is comprised of 107 quadrupole-doublet cells, built using Halbach permanent magnet technology. Spreader and combiner sections (4 independent beam lines each) connect the 36 MeV linac to the FFAG arcs. We introduce here a start-to-end simulation of the 4-pass ERL, based entirely, and exclusively, on the use of magnetic field maps to model the optical components.

Authors:

Meot, Francois ^[1]; Berg, J. S. ^[1]; Brooks, S. ^[1]; Trbojevic, D. ^[1]; Tsoupas, N. ^[1]; Crittenden, J. ^[2]

Brookhaven National Lab. (BNL), Upton, NY (United States)
Cornell Univ., Ithaca, NY (United States)

Publication Date:: Wed Dec 11 00:00:00 EST 2019

Research Org.:: Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP)

OSTI Identifier:: 1529889

Alternate Identifier(s):: OSTI ID: 1602466

Report Number(s):: BNL-211811-2019-JAAM
Journal ID: ISSN 0217-751X

Grant/Contract Number:: SC0012704

Resource Type:: Accepted Manuscript

Journal Name:: International Journal of Modern Physics A

Additional Journal Information:: Journal Volume: 34; Journal Issue: 36; Journal ID: ISSN 0217-751X

Publisher:: World Scientific

Country of Publication:: United States

Language:: English

Subject:: 43 PARTICLE ACCELERATORS; CBETA; FFAG; ERL; Zgoubi

Citation Formats


                    Meot, Francois, Berg, J. S., Brooks, S., Trbojevic, D., Tsoupas, N., and Crittenden, J. Simulation of the CBETA 4-pass FFAG ERL using field maps — exclusively.  United States: N. p., 2019. 
Web.  doi:10.1142/S0217751X19420387.

Copy to clipboard


                    Meot, Francois, Berg, J. S., Brooks, S., Trbojevic, D., Tsoupas, N., & Crittenden, J. Simulation of the CBETA 4-pass FFAG ERL using field maps — exclusively.  United States.  https://doi.org/10.1142/S0217751X19420387

Copy to clipboard


                    Meot, Francois, Berg, J. S., Brooks, S., Trbojevic, D., Tsoupas, N., and Crittenden, J. Wed .  
"Simulation of the CBETA 4-pass FFAG ERL using field maps — exclusively".  United States.  https://doi.org/10.1142/S0217751X19420387.  https://www.osti.gov/servlets/purl/1529889.

Copy to clipboard


                    
@article{osti_1529889,

  title        = {Simulation of the CBETA 4-pass FFAG ERL using field maps — exclusively},

  author       = {Meot, Francois and Berg, J. S. and Brooks, S. and Trbojevic, D. and Tsoupas, N. and Crittenden, J.},

  abstractNote = {The Cornell-BNL Electron Test Accelerator (CBETA), a four-pass, 150 MeV energy recovery linac (ERL), is now in construction at Cornell. Commissioning commenced on March 2019. A particularity of CBETA is that a single channel loop recirculates the four energies (42, 78, 114 and 150 MeV). The return loop arcs are based on fixed-field alternating gradient (FFAG) optics. The loop is comprised of 107 quadrupole-doublet cells, built using Halbach permanent magnet technology. Spreader and combiner sections (4 independent beam lines each) connect the 36 MeV linac to the FFAG arcs. We introduce here a start-to-end simulation of the 4-pass ERL, based entirely, and exclusively, on the use of magnetic field maps to model the optical components.},

  doi          = {10.1142/S0217751X19420387},

  journal      = {International Journal of Modern Physics A},

  number       = 36,

  volume       = 34,

  place        = {United States},

  year         = {Wed Dec 11 00:00:00 EST 2019},

  month        = {Wed Dec 11 00:00:00 EST 2019}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1142/S0217751X19420387

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 1 work

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Beam dynamics validation of the Halbach Technology FFAG Cell for Cornell-BNL Energy Recovery Linac
journal, July 2018

Méot, F.; Tsoupas, N.; Brooks, S.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 896
DOI: 10.1016/j.nima.2018.04.017

Similar Records in DOE PAGES and OSTI.GOV collections:

Beam dynamics validation of the Halbach Technology FFAG Cell for Cornell-BNL Energy Recovery Linac

Technical Report Meot, Francois ; Tsoupas, N. ; Brooks, S. ; ...

The Cornell-BNL Electron Test Accelerator (CBETA), a 150 MeV energy recovery linac (ERL) now in construction at Cornell, employs a fixedfield alternating gradient (FFAG) optics return loop: a single beam line comprised of quadrupole doublet cells, which accepts four recirculated energies. CBETA FFAG cell uses Halbach permanent magnet technology, its design studies have covered an extended period of time supported all the way by extensive particle dynamics simulations using computed 3-D field map models. This approach, which supported the choice of Halbach technology for CBETA FFAG ERL in 2016, is discussed and illustrated here based on the final stage inmore »« less
https://doi.org/10.2172/1425173

Full Text Available
Beam dynamics validation of the Halbach Technology FFAG Cell for Cornell-BNL Energy Recovery Linac

Journal Article Meot, Francois ; Tsoupas, N. ; Brooks, S. ; ... - Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

The Cornell-BNL Electron Test Accelerator (CBETA), a 150 MeV energy recovery linac (ERL) now in construction at Cornell, employs a fixed-field alternating gradient optics return loop: a single beam line comprised of FFAG cells, which accepts four recirculated energies. CBETA FFAG cell uses Halbach permanent magnet technology, its design studies have covered an extended period of time supported by extensive particle dynamics simulations using computed 3-D field map models. As a result, this approach is discussed, and illustrated here, based on the final stage in these beam dynamics studies, namely the validation of a ultimate, optimized design of the Halbachmore » cell.« less
Cited by 4
https://doi.org/10.1016/j.nima.2018.04.017

Full Text Available
Initial performance of the magnet system in the splitter/combiner section of the Cornell-Brookhaven Energy-Recovery Linac Test Accelerator

Technical Report Crittenden, J. A. ; Berg, J. S.

The Cornell-Brookhaven Energy-recovery Linac Test Ac- celerator is a four-pass, 150-MeV electron accelerator with a six-cell 1.3 GHz superconducting-RF linear accelerator and a fixed-field alternating-gradient (FFAG) return loop made up of Halbach-style quadrupole magnets. The optics matching between the linear accelerator and the return loop is achieved with a conventional magnet system comprised of 50 dipole magnets and 64 quadrupole magnets in four beamlines at each end of the linac. The 42-, 78-, 114- and 150-MeV electron beams are separated into independent vacuum chambers in order to allow for the path-length ad- justment required by energy recovery. We report onmore »« less
https://doi.org/10.2172/1475158

Full Text Available
Design of a modified Halbach magnet for the CBETA Project

Technical Report Tsoupas, Nicholaos ; Berg, J. S. ; Brooks, S. ; ...

A modified Halbach magnet has been designed to be installed in the splitter/merger section of the CBETA project which is under construction at Cornell University. The splitter/merger of the CBETA consists of 4 beam lines and is shown in Fig. 1. Two of the functions of the splitter/merger lines are; first to match the beam parameters at the exit of the Energy Recovery Linac (ERL) to those at the entrance of the Fixed Field Alternating Gradient (FFAG) arc, and second to place the trajectories of the reference particles of the beam bunches at the entrance of the FFAG arc onmore »« less
https://doi.org/10.2172/1436281

Full Text Available
Magnet design for the splitter/combiner regions of CBETA, the Cornell-Brookhaven Energy-Recovery-Linac Test Accelerator

Technical Report Crittendon, J. A. ; Burke, D. C. ; Fuentes, Y. L.P. ; ...

The Cornell-Brookhaven Energy-Recovery-Linac Test Accelerator (CBETA) will provide a 150-MeV electron beam using four acceleration and four deceleration passes through the Cornell Main Linac Cryomodule housing six 1.3-GHz superconducting RF cavities. The return path of this 76-m-circumference accelerator will be provided by 106 fixed-field alternating-gradient (FFAG) cells which carry the four beams of 42, 78, 114 and 150 MeV. Here we describe magnet designs for the splitter and combiner regions which serve to match the on-axis linac beam to the off-axis beams in the FFAG cells, providing the path-length adjustment necessary to energy recovery for each of the four beams.more »« less
https://doi.org/10.2172/1412709

Full Text Available

Similar Records

Title: Simulation of the CBETA 4-pass FFAG ERL using field maps — exclusively

Abstract

Citation Formats

Beam dynamics validation of the Halbach Technology FFAG Cell for Cornell-BNL Energy Recovery Linac journal, July 2018

Beam dynamics validation of the Halbach Technology FFAG Cell for Cornell-BNL Energy Recovery Linac
journal, July 2018