Time: 17:00 (JST) -
Site: ATF LC container meeting room (KEK)
Participants: Terunuma, Tauch, Okugi, Yamanaka, Oroku
* Damage threshold of optics
- Sigma Koki optics now used in IP-BSM reach limit when EXT LW laser is used.
-> if the replacement of optics is needed, they should be done in this summer shutdown.
- need to prepare laser dump before making transport line
* Laser transport line from EXT LW
- It is no problem with Aryshev's plan
* Injection to the Shintake monitor optical table
- inject from the north side of the table in beam height (EXT LW laser height is
already in beam height)
- attach horizontally movalble mirror to switch the EXT LW laser and the present laser
* Slit of knife edge
- should care not only the roughness but also the uniformity of the edge
* Detector upgrade
- install gain monitor to calibrate the light correction efficiensy of all blocks of scintillator
- make new housing for nitrogen parge
- make fan for stabilize temparature
* Schedule
- should make a schedule during the summer shutdown
- should place priority on making screen monitor and so on rather than making the
laser transport from EXT LW
