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Minutes of Weekly JLC Physics Group Meeting
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Place: 3F Bldg 3, KEK
Time: 10:30, 99/01/08
[0] Agenda
0.1) CDC R&D Status
[1] CDC R&D Status
[1-1] Lorentz Angle Measurement (Hoshina)
K.Hoshina described a new measurement system using two
laser beams to measure two drift length points at one
time. This is to overcome a known vibration problem with
the previous measurement system. The data will be read
out with FADC's.
[1-2] Two-Track Separation (Kuroiwa)
H.Kuroiwa showed preliminary results on the per-wire
efficiency as a function of the two-hit distance.
The efficiency started dropping at around 5mm in the
two-hit distance, possibly due to space charge effects.
More studies are necessary to draw any solid conclusions.
fujiik@jlcux1.kek.jp