Publications
Publication Information
| Title | A bulk superconducting MgB2 cylinder for holding transversely polarized targets | ||
| Authors | Michael Lowry, Andrew Sandorfi, M. Statera, I. Balossino, L. Barion, G. Ciullo, M. Contalbribo, P. Lenisa, M. Lowry, A. Sandorfi, G. Tagliente | ||
| JLAB number | JLAB-PHY-18-2611 | ||
| LANL number | (None) | ||
| Other number | DOE/OR/23177-4350 | ||
| Document Type(s) | (Journal Article) | ||
| Associated with EIC: | No | ||
| Supported by Jefferson Lab LDRD Funding: | No | ||
| Funding Source: | Nuclear Physics (NP) | ||
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Journal Compiled for Nuclear Instruments & Methods in Physics Research, Section A Volume 882 Page(s) 17-21 Refereed | |||
| Publication 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. 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. | ||
| Experiment Numbers: | |||
| Group: | Hall B | ||
| Document: | |||
| DOI: | https://doi.org/10.1016/j.nima.2017.10.051 | ||
| Accepted Manuscript: | |||
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