Application of internal gas target for beam polarization measurement in the electron storage ring.

There is an interest in the problem of polarized fusion with the neutronfree d³He reaction. Up to now, the experimental data on the cross sections of two dd reactions, which produce neutrons at once or through secondary dt reaction, are absent for polarized deuterons. There is a relatively cheap way to carry out the experiments with polarized deuterons at the Charles University in Prague. A polarized deuteron beam with energy from 100 keV up to approximately 1 MeV may be produced on the Van de Graaff accelerator by the channeling of a deuteron beam through magnetized Ni single crystal foil, according M. Kaminsky [Phys. Rev. Lett. 23, 819 (1969)]. This method permits to produce a polarized deuteron beam of an energy ≤ 1 MeV with a current of ∼ 1 nA, vector polarization P[sub 3] up to 2/3 and tensor polarization P[sub 33] = 0. It will be necessary to modify the existing polarized target at Charles University for work with a low energy deuteron beam [N.S. Borisov et al., Nucl. Instr. & Meth. A 345, 421 (1994)]. [ABSTRACT FROM AUTHOR]