Temperature dependence of 3He polarization in aluminum storage cells Article

cited authors

  • Korsch, W; Carr, RW; DeSchepper, D; Dvoredsky, A; Kramer, LH; Li, Y; McKeown, RD; Milner, RG; Pate, SF; Pitt, ML; Shin, T

fiu authors

abstract

  • The temperature dependence of the polarization of 3He atoms in an internal target cell has been studied. Metastable optically pumped polarized 3He atoms with typical polarization values of 40% were injected into a thin-walled aluminum cell of 40 cm length and a 29.0 × 9.8 mm2 elliptical cross-section. The cell temperature was varied between 5 and 85 K. The polarization inside the target cell was measured via an asymmetry in the 3He→ (d,p)4He reaction at a deuteron energy of 4 MeV. An exponential decrease of the polarization was found for temperatures less than 15 K. For a temperature of ∼6 K a polarization consistent with zero was measured.

publication date

  • April 21, 1997

Digital Object Identifier (DOI)

start page

  • 389

end page

  • 397

volume

  • 389

issue

  • 3