Talk:GTS meeting 1 12 16

• Phil gave an update on the item list for the multi-alkali chamber:
  • He has marked the position of the gun table
  • Instead of deisgning a support for the puck fork and making new pucks with grooves, we will go with standard pucks and use the standrad "puck holder" attached to the rotary
  • We asked John to design/build a motor stage for the bottom manipulator

• Magnetized beam:
  • The power supply for the big solenoid will be placed where the FEL THz chicane PS is, where there is power and water. The output will be wired up from the FEL vault to the GTS.
  • Riad mentions that the PS will likely be from ARC 6...
  • Riad to schedule a meeting with Vashek and source group to follow up on radiation shielding calculations

• Yan presented the electrostatic design for the shed to be used with a black (partially conductive) R30 insulator in the ITF gun. The optimization of the shed is based on John's original design which demonstrated 375 kV with a white R30 insulator, and the one that is currently installed in the GTS gun with a ball cathode & puck. Yan's design lowers the maximum field from 12 to about 10 MV/m at 350kV, and has negligible field at the triple point junction.
  • John H. will be doing the mechanical design for this optimized shed.

• Beamline
  • we discussed action items and started to lay down the tasks on a schedule.
  • Carlos will the input from the meeting and generate a schedule and also an ATList to request support from EES and I&C
  • The two solenoids have been measured at magnet test by Mike Beck and Yan brought them over to the GTS.
  • Phil mentioned that he will use sections of the 80/20 frame already in the GTS to extend the exisiting 80/20 VA beamline girder for the dump
  • Counting from upstream to downstream, and after the last solenoid, we need: 1- DP can, cross with viewer, and beam dump.
  • Carlos to contact Joe Gubeli and ask for DP can.
  • The viewer cross in in the GTS mezzanine on the wooden bench.

• Drive Laser transport
  • Shukui gave a summary of the layout for the optical transport and cost estimate for components needed to upgrade the optical transport.
  • Earlier in the morning, Phil, Shukui and Carlos discussed the position of two new mirror boxes to be anchored to the ceiling for updating the drive laser transport.