Cryopumped, Condensed Hydrogen Jet Target for the National Accelerator Laboratory Main Accelerator
In order to carry out proton-proton interaction experiments with the inner beam of the NAL main accelerator, a jet target was designed. This target produces a pulsed jet of condensed hydrogen with the following parameters: diameter, ∼ 10 mm; duration, 300 msec; density, ∼ 10−6 g/cm3[1–4]. The jet is pumped from the vacuum chamber with a helium-cooled cryopump. The jet is required so that the high backgrounds inherent with polymer foil targets are eliminated.
KeywordsHeat Exchanger Condensed Film Solid Hydrogen Hydrogen Supply Supply Pulse
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