9-14 September 2018
University of Ferrara
Europe/Rome timezone
23RD INTERNATIONAL SPIN SYMPOSIUM

Measurements of the transverse magnetization of a bulk MgB2 cylinder

11 Sep 2018, 17:00
20m
A9 (Polo degli Adelardi - Via Adelardi, 33)

A9

Polo degli Adelardi - Via Adelardi, 33

Parallel Sessions Polarized Ion and Lepton Sources and Targets Polarized Ion and Lepton Sources and Targets

Speaker

Marco Statera (MI)

Description

An innovative magnetic solution is being pursued for inserting a transversely polarized target inside the central solenoid of the CLAS12 detector at Jefferson Lab, in order to measure transverse spin effect in SIDIS with the 11 GeV upgrade of CEBAF. A feasibility study of a bulk superconducting magnetic system is underway, to provide a transverse holding field for the target while compensating for the spectrometer field within the target volume and meeting the stringent requirements of geometry, compactness and material budget imposed by the high-energy measurements. We review a bench test in which a cylinder of MgB2 is conductively cooled by a cold head, temperature controlled by a heater and magnetized by external resistive coils. The transverse magnetization of a bulk MgB2 cylinder has been studied, along with its magnetic shielding efficiency. Updated results will be reported, along with the corresponding long-term stability performance.

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Co-authors

Presentation Materials