A bulk superconducting MgB2 cylinder for holding transversely polarized targets

Statera, M.; Balossino, I.; Barion, L.; Ciullo, G.; Contalbrigo, M.; Lenisa, P.; Lowry, M. M.; Sandorfi, A. M.; Tagliente, G.

doi:10.1016/j.nima.2017.10.051

Title: A bulk superconducting MgB $_{2}$ cylinder for holding transversely polarized targets

Journal Article · Mon Nov 06 00:00:00 EST 2017 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2017.10.051· OSTI ID:1419740

Statera, M. ^[1]; Balossino, I. ^[1]; Barion, L. ^[1]; Ciullo, G. ^[1]; Contalbrigo, M. ^[2]; Lenisa, P. ^[1]; Lowry, M. M. ^[3]; Sandorfi, A. M. ^[3]; Tagliente, G. ^[4]

Univ. di Ferrara and INFN, Ferrara (Italy)
Istituto Nazionale di Fisica Nucleare (INFN), Ferrara (Italy)
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Istituto Nazionale di Fisica Nucleare (INFN), Bari (Italy)

An innovative solution is being pursued for the challenging magnetic problem of producing an internal transverse field around a polarized target, while shielding out an external longitudinal field from a detector. A hollow bulk superconductor can trap a transverse field that is present when cooled through its transition temperature, and also shield its interior from any subsequent field changes. Here, a feasibility study with a prototype bulk MgB₂ superconducting cylinder is described. Promising measurements taken of the interior field retention and exterior field exclusion, together with the corresponding long-term stability performance, are reported. In the context of an electron scattering experiment, such a solution minimizes beam deflection and the energy loss of reaction products, while also eliminating the heat load to the target cryostat from current leads that would be used with conventional electromagnets.

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Research Organization:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP); Istituto Nazionale di Fisica Nucleare (INFN)

Grant/Contract Number:: AC05-06OR23177

OSTI ID:: 1419740

Alternate ID(s):: OSTI ID: 1549055

Report Number(s):: JLAB-PHY-18-2611; DOE/OR/-23177-4350; PII: S0168900217311336; TRN: US1801380

Journal Information:: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 882, Issue C; ISSN 0168-9002

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 8 works

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References (8)

Model for flux trapping and shielding by tubular superconducting samples in transverse fields Frankel, D. IEEE Transactions on Magnetics, Vol. 15, Issue 5 https://doi.org/10.1109/TMAG.1979.1060310	journal	September 1979
Magnetic shielding properties of a superconducting hollow cylinder containing slits: modelling and experiment Fagnard, J-F; Elschner, S.; Hobl, A. Superconductor Science and Technology, Vol. 25, Issue 10 https://doi.org/10.1088/0953-2048/25/10/104006	journal	September 2012
A portable cryostat for the cold transfer of polarized solid HD targets: HDice-I Bass, C. D.; Bade, C.; Blecher, M. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 737 https://doi.org/10.1016/j.nima.2013.10.056	journal	February 2014
Prospects for MgB ₂ superconductors for magnet application Vinod, K.; Kumar, R. G. Abhilash; Syamaprasad, U. Superconductor Science and Technology, Vol. 20, Issue 1 https://doi.org/10.1088/0953-2048/20/1/R01	journal	December 2006
Magnetic System for the CLAS12 Proposal Statera, M.; Contalbrigo, M.; Pappalardo, L. IEEE Transactions on Applied Superconductivity, Vol. 23, Issue 3 https://doi.org/10.1109/TASC.2012.2234204	journal	June 2013
HIGH DENSITY M g B ₂ OBTAINED BY REACTIVE LIQUID M g INFILTRATION Giunchi, Giovanni International Journal of Modern Physics B, Vol. 17, Issue 04n06 https://doi.org/10.1142/S0217979203016091	journal	March 2003
A magnetic field cloak for charged particle beams Capobianco-Hogan, K. G.; Cervantes, R.; Deshpande, A. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 877 https://doi.org/10.1016/j.nima.2017.09.034	journal	January 2018
Relaxation Phenomena in a Long MgB ₂ Tube Subjected to Transverse Magnetic Field, at 4.2 K Giunchi, Giovanni; Barna, Daniel; Bajas, Hugues IEEE Transactions on Applied Superconductivity, Vol. 28, Issue 4 https://doi.org/10.1109/TASC.2018.2816101	journal	June 2018

Cited By (3)

Anisotropy of the thermal conductivity of bulk melt-cast Bi-2212 superconducting tubes Szewczyk, Daria; Stachowiak, Piotr; Mucha, Jan Superconductor Science and Technology, Vol. 33, Issue 2 https://doi.org/10.1088/1361-6668/ab601c	journal	January 2020
Magnetic shielding of various geometries of bulk semi-closed superconducting cylinders subjected to axial and transverse fields Fagnard, J. F.; Vanderheyden, B.; Pardo, E. Superconductor Science and Technology, Vol. 32, Issue 7 https://doi.org/10.1088/1361-6668/ab1824	journal	June 2019
Magnetic shielding of a short thick GdBCO tube fabricated by the buffer aided top-seeded infiltration and growth method Yang, Pengtao; Fagnard, Jean-Francois; Vanderbemden, Philippe Superconductor Science and Technology, Vol. 32, Issue 11 https://doi.org/10.1088/1361-6668/ab4309	journal	October 2019

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Title: A bulk superconducting MgB 2 cylinder for holding transversely polarized targets

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Title: A bulk superconducting MgB $_{2}$ cylinder for holding transversely polarized targets