Development of a Dynamically Polarized D Target at TUNL
Abstract
We describe the modification of the TUNL dynamically polarized proton target cryostat to produce a polarized deuterium target for investigations of the spin dependence of the transmission of polarized neutrons. The ^3He evaporation cryostat includes a 2.5 tesla split-coil magnet which can be oriented to produce transverse or longitudinally polarized targets. The target material is partially deuterated 1,2 propanediol (D6) containing protons and deuterons, which are both polarized. Two separate NMR systems monitor the nuclear polarizations. The deuteron polarizations ( ~ 13% at T = 0.5 Kelvin) were determined by fitting the NMR spectra to theoretical models. The deuteron polarization was also compared to the measured proton polarization using the equal spin temperature hypothesis.
- Publication:
-
APS Division of Nuclear Physics Meeting Abstracts
- Pub Date:
- October 1998
- Bibcode:
- 1998APS..DNP..B701P