Current status of permanent magnet radiation resiliency studies at CEBAF

Ryan Bodenstein; William Shields; C Decker; K.E. Dietrick; B.R. Gamage; J.F. Gubeli; D. Hamlette; M Janak; J Meyers; B. Mosbrucker; E. Nissen; J. Samari; S. Shriner; M. Smith; N. Wilson; S.J. Brooks; Stewart Boogert; B. Shepherd; L. Nevay

doi:10.18429/JACoW-IPAC25-THPB093

Current status of permanent magnet radiation resiliency studies at CEBAF

Ryan Bodenstein
, William Shields
, C Decker
, K.E. Dietrick
, B.R. Gamage
, J.F. Gubeli
, D. Hamlette
, M Janak
, J Meyers
, B. Mosbrucker
, E. Nissen
, J. Samari
, S. Shriner
, M. Smith
, N. Wilson
, S.J. Brooks
, Stewart Boogert
, B. Shepherd
, L. Nevay

Research output: Contribution to journal › Conference article

Abstract

One possible future for Jefferson Lab’s Continuous Electron Beam Accelerator Facility (CEBAF) lies in upgrading its maximum nominal energy using Fixed-Field Alternating-gradient (FFA) technology for its recirculating arcs. The current proposal aims to use permanent magnets to supply the fixed fields. One concern among reviewers is the degradation of these permanent magnets during operation due to the radiation environment in which they will be present. This work, funded by a Laboratory Directed R&D grant, aims to measure the magnet degradation in the CEBAF tunnel enclosure, and extrapolate to the energies expected from the upgrade. We present the latest results of this study, as well as plans moving forward.

Original language	English
Article number	THPB093
Pages (from-to)	2664
Number of pages	2667
Journal	JACoW
Volume	IPAC2025
DOIs	https://doi.org/10.18429/JACoW-IPAC25-THPB093
Publication status	Published - 10 Jul 2025

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10.18429/JACoW-IPAC25-THPB093Licence: CC BY

Cite this

Bodenstein, R., Shields, W., Decker, C., Dietrick, K. E., Gamage, B. R., Gubeli, J. F., Hamlette, D., Janak, M., Meyers, J., Mosbrucker, B., Nissen, E., Samari, J., Shriner, S., Smith, M., Wilson, N., Brooks, S. J., Boogert, S., Shepherd, B., & Nevay, L. (2025). Current status of permanent magnet radiation resiliency studies at CEBAF. JACoW, IPAC2025, 2664. Article THPB093. https://doi.org/10.18429/JACoW-IPAC25-THPB093

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title = "Current status of permanent magnet radiation resiliency studies at CEBAF",

abstract = "One possible future for Jefferson Lab{\textquoteright}s Continuous Electron Beam Accelerator Facility (CEBAF) lies in upgrading its maximum nominal energy using Fixed-Field Alternating-gradient (FFA) technology for its recirculating arcs. The current proposal aims to use permanent magnets to supply the fixed fields. One concern among reviewers is the degradation of these permanent magnets during operation due to the radiation environment in which they will be present. This work, funded by a Laboratory Directed R\&D grant, aims to measure the magnet degradation in the CEBAF tunnel enclosure, and extrapolate to the energies expected from the upgrade. We present the latest results of this study, as well as plans moving forward.",

author = "Ryan Bodenstein and William Shields and C Decker and K.E. Dietrick and B.R. Gamage and J.F. Gubeli and D. Hamlette and M Janak and J Meyers and B. Mosbrucker and E. Nissen and J. Samari and S. Shriner and M. Smith and N. Wilson and S.J. Brooks and Stewart Boogert and B. Shepherd and L. Nevay",

year = "2025",

month = jul,

day = "10",

doi = "10.18429/JACoW-IPAC25-THPB093",

language = "English",

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Bodenstein, R, Shields, W, Decker, C, Dietrick, KE, Gamage, BR, Gubeli, JF, Hamlette, D, Janak, M, Meyers, J, Mosbrucker, B, Nissen, E, Samari, J, Shriner, S, Smith, M, Wilson, N, Brooks, SJ, Boogert, S, Shepherd, B & Nevay, L 2025, 'Current status of permanent magnet radiation resiliency studies at CEBAF', JACoW, vol. IPAC2025, THPB093, pp. 2664. https://doi.org/10.18429/JACoW-IPAC25-THPB093

TY - JOUR

T1 - Current status of permanent magnet radiation resiliency studies at CEBAF

AU - Bodenstein, Ryan

AU - Shields, William

AU - Decker, C

AU - Dietrick, K.E.

AU - Gamage, B.R.

AU - Gubeli, J.F.

AU - Hamlette, D.

AU - Janak, M

AU - Meyers, J

AU - Mosbrucker, B.

AU - Nissen, E.

AU - Samari, J.

AU - Shriner, S.

AU - Smith, M.

AU - Wilson, N.

AU - Brooks, S.J.

AU - Boogert, Stewart

AU - Shepherd, B.

AU - Nevay, L.

PY - 2025/7/10

Y1 - 2025/7/10

N2 - One possible future for Jefferson Lab’s Continuous Electron Beam Accelerator Facility (CEBAF) lies in upgrading its maximum nominal energy using Fixed-Field Alternating-gradient (FFA) technology for its recirculating arcs. The current proposal aims to use permanent magnets to supply the fixed fields. One concern among reviewers is the degradation of these permanent magnets during operation due to the radiation environment in which they will be present. This work, funded by a Laboratory Directed R&D grant, aims to measure the magnet degradation in the CEBAF tunnel enclosure, and extrapolate to the energies expected from the upgrade. We present the latest results of this study, as well as plans moving forward.

AB - One possible future for Jefferson Lab’s Continuous Electron Beam Accelerator Facility (CEBAF) lies in upgrading its maximum nominal energy using Fixed-Field Alternating-gradient (FFA) technology for its recirculating arcs. The current proposal aims to use permanent magnets to supply the fixed fields. One concern among reviewers is the degradation of these permanent magnets during operation due to the radiation environment in which they will be present. This work, funded by a Laboratory Directed R&D grant, aims to measure the magnet degradation in the CEBAF tunnel enclosure, and extrapolate to the energies expected from the upgrade. We present the latest results of this study, as well as plans moving forward.

U2 - 10.18429/JACoW-IPAC25-THPB093

DO - 10.18429/JACoW-IPAC25-THPB093

M3 - Conference article

VL - IPAC2025

SP - 2664

JO - JACoW

JF - JACoW

M1 - THPB093

ER -