CTF TestLab Coordination Meeting Nov 09, 2016

Attendance

Creel, Wright, Salinger, Davis, Reilly, Daly, Kushnick

1. CTF Capacity

CTF is a variable capacity machine producing 4.5K and 15K temperatures and some liquefaction capability.

The two endpoints of capacity are approximately (1,500W at 4.5K and 0W 15K) or (800W at 4.5K and 1,200W at 15K).

Each 1 g/s of lead flow (liquefaction) costs 100W at 4.5K of refrigeration and increases LN2 usage by 3 g/s (~3 gallons/hour).

The addition of the CHL-ESR transferline adds up to 20 g/s at 4.5K with increased electrical power and LN2 costs at CHL.

2. Reliability

Operating CTF at higher capacities will effect availability.

3. Topics

A) Improving the daily start time that VTA dewars can begin filling (getting the cold stuff here earlier in the morning)

B) Technical path to fully automated VTA dewars fill/pumpdown

C) Maintenance items for which we would like to request cryo help (arc cell installation, pair pump oil addition)

D) Lessons learned from past cryomodule cooldowns and warmups

Attendees will notify cryo of any changes to the plan or changes to the operating conditions including any new tests.