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

Abstract

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.

Authors:
 [1];  [1];  [1];  [1];  [2];  [1];  [3];  [3];  [4]
  1. Univ. di Ferrara and INFN, Ferrara (Italy)
  2. Istituto Nazionale di Fisica Nucleare (INFN), Ferrara (Italy)
  3. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  4. Istituto Nazionale di Fisica Nucleare (INFN), Bari (Italy)
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP); Istituto Nazionale di Fisica Nucleare (INFN)
OSTI Identifier:
1419740
Alternate Identifier(s):
OSTI ID: 1549055
Report Number(s):
JLAB-PHY-18-2611; DOE/OR/-23177-4350
Journal ID: ISSN 0168-9002; PII: S0168900217311336; TRN: US1801380
Grant/Contract Number:  
AC05-06OR23177
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 882; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Bulk superconductor; MgB2; HDice; Superconducting shield; Trapped field; Zero-field cooling

Citation Formats

Statera, M., Balossino, I., Barion, L., Ciullo, G., Contalbrigo, M., Lenisa, P., Lowry, M. M., Sandorfi, A. M., and Tagliente, G. A bulk superconducting MgB2 cylinder for holding transversely polarized targets. United States: N. p., 2017. Web. doi:10.1016/j.nima.2017.10.051.
Statera, M., Balossino, I., Barion, L., Ciullo, G., Contalbrigo, M., Lenisa, P., Lowry, M. M., Sandorfi, A. M., & Tagliente, G. A bulk superconducting MgB2 cylinder for holding transversely polarized targets. United States. https://doi.org/10.1016/j.nima.2017.10.051
Statera, M., Balossino, I., Barion, L., Ciullo, G., Contalbrigo, M., Lenisa, P., Lowry, M. M., Sandorfi, A. M., and Tagliente, G. Mon . "A bulk superconducting MgB2 cylinder for holding transversely polarized targets". United States. https://doi.org/10.1016/j.nima.2017.10.051. https://www.osti.gov/servlets/purl/1419740.
@article{osti_1419740,
title = {A bulk superconducting MgB2 cylinder for holding transversely polarized targets},
author = {Statera, M. and Balossino, I. and Barion, L. and Ciullo, G. and Contalbrigo, M. and Lenisa, P. and Lowry, M. M. and Sandorfi, A. M. and Tagliente, G.},
abstractNote = {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.},
doi = {10.1016/j.nima.2017.10.051},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 882,
place = {United States},
year = {Mon Nov 06 00:00:00 EST 2017},
month = {Mon Nov 06 00:00:00 EST 2017}
}

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Cited by: 8 works
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Works referenced in this record:

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Works referencing / citing this record:

Anisotropy of the thermal conductivity of bulk melt-cast Bi-2212 superconducting tubes
journal, January 2020

  • Szewczyk, Daria; Stachowiak, Piotr; Mucha, Jan
  • Superconductor Science and Technology, Vol. 33, Issue 2
  • DOI: 10.1088/1361-6668/ab601c

Magnetic shielding of various geometries of bulk semi-closed superconducting cylinders subjected to axial and transverse fields
journal, June 2019

  • Fagnard, J. F.; Vanderheyden, B.; Pardo, E.
  • Superconductor Science and Technology, Vol. 32, Issue 7
  • DOI: 10.1088/1361-6668/ab1824

Magnetic shielding of a short thick GdBCO tube fabricated by the buffer aided top-seeded infiltration and growth method
journal, October 2019

  • Yang, Pengtao; Fagnard, Jean-Francois; Vanderbemden, Philippe
  • Superconductor Science and Technology, Vol. 32, Issue 11
  • DOI: 10.1088/1361-6668/ab4309