Ultra-cold spin-polarized jet for the NEPTUN - A experiment at UNK
1993
A high-intensity jet of proton-spin-polarized atomic hydrogen is being designed for use as an internal target in the 400 GeV and 3 TeV UNK accelerator. An ultra-cold (300 mK) helium-film-coated cell located in the gradient of a 12 T solenoid will produce a beam of electron-spin-polarized hydrogen atoms. The beam transport components include a quasi-parabolic hydrogen-focusing mirror, an RF transition unit and a superconducting sextupole. The target thickness design goal is 10{sup 14} protons cm{sup {minus}2}.
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