Author/Authors :
M.V. Dyug، نويسنده , , M.V and Isaeva، نويسنده , , L.G. and Lazarenko، نويسنده , , B.A. and Mishnev، نويسنده , , S.I. and Nikolenko، نويسنده , , D.M and Rachek، نويسنده , , I.A. and Shestakov، نويسنده , , Yu. V. and Sadykov، نويسنده , , R.Sh and Toporkov، نويسنده , , D.K. and Zevakov، نويسنده , , S.A and Osipov، نويسنده , , A.V and Stibunov، نويسنده , , V.N، نويسنده ,
Abstract :
Description of the polarized deuterium gas target used at the VEPP-3 electron storage ring for experiments on elastic and inelastic ed scattering is given. Superconducting sextupole magnets with the pole tip magnetic field up to 4.8 T are used in atomic beam source (ABS) to focus atoms. The flux of polarized atoms injected into the storage cell was measured to be 8.2×1016 at/s for deuterium and 7.9×1016 at/s for hydrogen. The measured target thickness 8×1013 at/cm2 is consistent with the thickness calculated from the measured beam intensity. The effective tensor polarization of the deuterium target during the experiment was found to be Pzz=0.397. Further improvements of the target and possible limitation of the beam intensity from ABS are discussed.
Keywords :
Internal target , Superconducting magnets , Atomic beam source , Storage cell for polarized atoms
