Author/Authors :
S. Mikirtychyants، نويسنده , , M. and Engels، نويسنده , , R. and Grigoryev، نويسنده , , K. and Kleines، نويسنده , , H. and Kravtsov، نويسنده , , P. and Lorenz، نويسنده , , S. V. Nekipelov، نويسنده , , M. and Nelyubin، نويسنده , , V. and Rathmann، نويسنده , , F. and Sarkadi، نويسنده , , J. and Paetz gen. Schieck، نويسنده , , H. and Seyfarth، نويسنده , , H. and Steffens، نويسنده , , E. and Strِher، نويسنده , , H. and Vasilyev، نويسنده , , A.، نويسنده ,
Abstract :
A polarized atomic beam source was developed for the polarized internal storage-cell gas target at the magnet spectrometer ANKE of COSY-Jülich. The intensities of the beams injected into the storage cell, measured with a compression tube, are 7.5 × 10 16 hydrogen atoms/s (two hyperfine states) and 3.9 × 10 16 deuterium atoms/s (three hyperfine states). For the hydrogen beam the achieved vector polarizations are p z ≈ ± 0.92 . For the deuterium beam, the obtained combinations of vector and tensor ( p zz ) polarizations are p z ≈ ± 0.90 (with a constant p zz ≈ + 0.86 ), and p zz =+ 0.90 or p zz = − 1.71 (both with vanishing p z ). The paper includes a detailed technical description of the apparatus and of the investigations performed during the development. This source has been very successfully used for single and double polarization measurements at ANKE as well as for studies of the polarization of recombining hydrogen molecules.
