Solenoid Magnet System for the Fermilab Mu2e Experiment

Journal Article · Tue Dec 13 23:00:00 EST 2011 · IEEE Transactions on Applied Superconductivity

DOI:https://doi.org/10.1109/TASC.2011.2179835· OSTI ID:1039346

Lamm, M. J. ^[1]; Andreev, N. ^[1]; Ambrosio, G. ^[1]; Brandt, J. ^[1]; Coleman, R. ^[1]; Evbota, D. ^[1]; Kashikhin, V. V. ^[1]; Lopes, M. ^[1]; Miller, J. ^[1]; Nicol, T. ^[1]; Ostojic, R. ^[1]; Page, T. ^[1]; Peterson, T. ^[1]; Popp, J. ^[1]; Pronskikh, V. ^[1]; Tang, Z. ^[1]; Tartaglia, M. ^[1]; Wake, M. ^[1]; Wands, R. ^[1]; Yamada, R. ^[1]

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1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

The Fermilab Mu2e experiment seeks to measure the rare process of direct muon to electron conversion in the field of a nucleus. Key to the design of the experiment is a system of three superconducting solenoids; a muon production solenoid (PS) which is a 1.8 m aperture axially graded solenoid with a peak field of 5 T used to focus secondary pions and muons from a production target located in the solenoid aperture; an 'S shaped' transport solenoid (TS) which selects and transports the subsequent muons towards a stopping target; a detector solenoid (DS) which is an axially graded solenoid at the upstream end to focus transported muons to a stopping target, and a spectrometer solenoid at the downstream end to accurately measure the momentum of the outgoing conversion elections. The magnetic field requirements, the significant magnetic coupling between the solenoids, the curved muon transport geometry and the large beam induced energy deposition into the superconducting coils pose significant challenges to the magnetic, mechanical, and thermal design of this system. In this paper a conceptual design for the magnetic system which meets the Mu2e experiment requirements is presented.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL
• Sponsoring Organization: USDOE Office of Science (SC)
• Grant/Contract Number: AC02-07CH11359
• OSTI ID: 1039346
• Report Number(s): FERMILAB--PUB-11-428-TD
• Journal Information: IEEE Transactions on Applied Superconductivity, Journal Name: IEEE Transactions on Applied Superconductivity Journal Issue: 3 Vol. 22; ISSN 1051-8223
• Publisher: Institute of Electrical and Electronics Engineers (IEEE)
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM
APERTURES
Accelerators
muon production solenoid
Mu2e experiment
superconducting solenoids
DESIGN
ELECTRONS
FERMILAB
MAGNETIC FIELDS
MAGNETS
MUONS
PIONS
PRODUCTION
SOLENOIDS
SPECTROMETERS
SUPERCONDUCTING COILS
SUPERCONDUCTING MAGNETS
TARGETS
TRANSPORT