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25 April 2024 |
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A High Power Hydrogen Target for Parity Violation Experiments | E.J. Beise
; D.H. Beck
; E. Candell
; R. Carr
; F. Duncan
; T. Forest
; W. Korsch
; J.W. Mark
; R.D. McKeown
; B.A. Mueller
; S. Wells
; | Date: |
14 Feb 1996 | Journal: | Nucl.Instrum.Meth. A378 (1996) 383-391 | Subject: | nucl-ex | Abstract: | Parity-violating electron scattering measurements on hydrogen and deuterium, such as those underway at the Bates and CEBAF laboratories, require luminosities exceeding $10^{38}$cm$^{-2}$s$^{-1}$, resulting in large beam power deposition into cryogenic liquid. Such targets must be able to absorb 500 watts or more with minimal change in target density. A 40~cm long liquid hydrogen target, designed to absorb 500~watts of beam power without boiling, has been developed for the SAMPLE experiment at Bates. In recent tests with 40~$mu$A of incident beam, no evidence was seen for density fluctuations in the target, at a sensitivity level of better than 1\%. A summary of the target design and operational experience will be presented. | Source: | arXiv, nucl-ex/9602002 | Services: | Forum | Review | PDF | Favorites |
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