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- W207699369 abstract "A polarized gas target intended for eventual use as an internal target in a storage ring was produced by injecting polarized deuterium atoms from an atomic-beam source into a Teflon coated target cell of 6.3 mm diameter and 19 cm length. The target thickness is 10{sup 13} atoms/cm{sup 2}. Retention of the polarization during the 350 wall collisions in the cell was tested by ionizing target atoms with a 0.25 mA beam of 2 KeV electrons. An axial magnetic field of 500 G was applied to decouple the nuclear spin from the electron spin. Extracted ions, accelerated to 65 keV, passed through a mass-analyzer before striking a tritiated Ti target. The tensor polarization of the ions was deduced from the anisotropy of the {sup 3}H(d,n){sup 4}He neutrons. For cell walls at room temperature, (92{plus_minus}2)% of the initial nuclear polarization is retained. Cold walls are of interest to increase the target density. At 100K, the polarization of the atoms is still 80%, but 18% of the atoms are found to recombine to D2, leading to an average nuclear polarization of 66%." @default.
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- W207699369 date "1992-12-01" @default.
- W207699369 modified "2023-09-28" @default.
- W207699369 title "Test of a polarized deuterium gas target cell in a strong magnetic field" @default.
- W207699369 hasPublicationYear "1992" @default.
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