| Autor: |
Blinov, B. B., Gladycheva, S. E., Kageya, T., Kantsyrev, D. Yu., Krisch, A. D., Luppov, V. G., Morozov, V. S., Murray, J. R., Raymond, R. S., Borisov, N. S., Fimushkin, V. V., Grishin, V. N., Mysnik, A. I., Kleppner, D. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2001, Vol. 570 Issue 1, p856, 5p |
| Abstrakt: |
To study spin effects in high energy collisions, we are developing an ultra-cold high-density jet target of proton-spin-polarized hydrogen atoms. The target uses a 12 Tesla magnetic field and a 0.3 K separation cell coated with superfluid helium-4 to produce a slow monochromatic electron-spin-polarized atomic hydrogen beam, which is then focused by a superconducting sextupole into the interaction region. In recent tests, we studied a polarized beam of hydrogen atoms focused by the superconducting sextupole into a compression tube detector, which measured the polarized atoms' intensity. The Jet produced, at the detector, a spin-polarized atomic hydrogen beam with a measured intensity of about 2.8·10[sup 15] H s[sup -1] and a FWHM area of less than 0.13 cm². This intensity corresponds to a free jet density of about 1·10[sup 12] H cm[sup -3] with a proton polarization of about 50%. When the transition RF unit is installed, we expect a proton polarization higher than 90%. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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