Measurements of the magnetic field direction for the polarized He-3 target.
ORAL
Abstract
For accurate measurement of the neutron electric form factor the direction of the magnetic field should be determined with a few milli radian accuracy. Furthermore, to achieve high polarization of the He-3 target, precise knowledge of both the direction and the gradient of the field is required. We have developed custom tools based on the Hall probes for such a measurement. The results of the measurements will be presented and compared with detailed calculations based on OPERA.
*The US DOE Office of Science and Office of Nuclear Physics under the Contract Nos. DE-AC02-05CH11231, DE-AC02- 06CH11357, and DE-SC0016577, as well as DOE Con- tract No. DE-AC05-06OR23177, under which JSA, LLC operates JLab.
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Presenters
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William P Henry
- Jefferson Lab/Jefferson Science Associates