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Weekly JLC Physics Group Meeting
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Place: BLDG 3, KEK
Time: 10:30, 97/03/21
[0] Agenda
0.1) General Notifications
0.2) CAL Subgroup Status
0.3) CDC Subgroup Status
[1] General Notifications
1.1) JLC Workstation Cluster Reconfiguration (Miyamoto)
Now all the jlcux's are running with HP-UX10.10.
Together with this, major reconfiguration is on-going
as explained in /jlc/adm/TO-DO.
Some points of interest:
(i) Disk rearrangement
jlcux1 -- home directory (a new 8GB disk)
/mnt/lcusers/ux01a
disks on which utilities reside
/mnt/utility ..... /kek/local/
/mnt/usr/local ... /usr/local/ : HP-UX 9.05
/mnt/jlc ......... /jlc/local/ : HP-UX 10.10
jlcsv1 -- group disks
(ii) New standard .login and .cshrc are available
from
jlc/adm/Csh.jlcux/d.login
jlc/adm/Csh.jlcux/d.cshrc
for test use. Modify yours following these examples.
1.2) Sudou's farewell party (Yamaguchi)
18:00 Today at Tsubohachi in Kuidaore.
1.3) Pretalks for JPS Spring Meeting 97
10:00, March 26.
Toeda, Suzuki, and Yamaguchi
[2] CAL Subgroup Status (Suzuki and Toeda)
Preliminary results from beam tests are reported.
Looked at 6:2, 8:2, and 10:2 data. Found some muon
contamination.
After elimination of this, observed
(i) overcompensation
(ii) energy resolutions as expected.
[3] CDC Subgroup Status (Yamaguchi)
Finished cosmic ray data taking and replaced the windows
by transparent ones. Chamber gas is now CO2 without isobutane.
Nominal H.V. for CO2+Isobutane could be applied.
---> Finished electrostatic sag measurments for the
five sense wires in the central cell.
---> CCD camera calibration data showed good linearity
as before.
---> The sag data will be used in the analysis of the cosmic
ray data.
Residual distribution for each sense wire eliminating itself from
the line fit shows a clear z-dependence:
---> Electrostatic sags are less prominent near the chamber ends.
---> Determination of spatial resolution requires the correction
for the wire sags.
fujiik@jlcux1.kek.jp