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Message ID: 198     Entry time: Tue, 15.01.2013 17:15:58
Author: MG 
Subject: S4 position change to field on 
17:11 (MG) S4 is moved to the Be at 19A GeV/c position for 20 GeV/c field, i.e. to 8.4 mm

8.4 = 14 (proton beam position) x 4 (Be Z) / 7 (Be A) x 20 (momentum for the nominal position) /19 (actual momentum) = 8.42 mm
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