Privacy and Security Notice

Time Activity Comment

Time

Activity

Comment

04/23 - 04/30

continue tagger, Moller, and CLAS commissioning

05/01 - 06/01

run g1 (Miskimen, 2.48 GeV)

06/02 - 06/08

maintenance and facility development

06/09 - 07/02

run g6 (Marchand, 4.23 GeV)

07/03 - 07/12

He processing of accelerator cavities

re-install Cerenkov counters (if ready)

07/13 - 07/26

continue to run g1 at 1.83 GeV

1)

27-Jul

start removing standard cryo-target and beam line

start drift chamber repair (top 2 Region III)

if polarized target installation is delayed

beyond 08/03/98.

if the polarized target is on schedule for

installation on 08/03/98, drift chamber repair

will be delayed till January 1999

08/03 - 08/18

polarized target installation

re-install remaining Cerenkov counters

08/19 - 08/20

eg1 commissioning

08/21 - 12/24

run eg1 (for 91 days)

 

1) The g1 run extension will restore most of the time lost at the beginning of the g1 run (g1 was supposed to start 04/13/98). Three-pass beam will not be available, since it is occupied by Gen in Hall C. The 1.83 GeV (2-pass) beam energy had originally been arranged for eg1. At 1.83 GeV, one will get perfect longitudinal polarization (at the 75% level). While this energy is too low for some of the g1 experiments, it will represent a unique opportunity to get circularly polarized photons with high polarization, e.g. for measuring the polarization transfer from circularly polarized photons to photo-produced Lambda's.