TGun status

(1) Get GTS back to operational

To Fix List (to get GTS running):

• Glassman PSS Chassis (Service request to Omar - Carlos)
• LCW Chassis (Sarin/ Mike Todd - follow up)
• Turbo (Replacement part for display - Bubba/Fay)
• Spellman (Augistine/ Riad)
• Picoammeter x2? (Pete Francis in hand - sent for fix)

To Check:

• Viewers (Operation - and cameras) (Viewer software - contact Brian Freeman)(??IOC reset?? Tony Delacruz)
• Magnets (IOC check)
• Harp (electronics)
• Cavities (electronics)
• Cathode solenoid - power supply

(2) T-Gun Upgrades

Need a safe gun - no devastating trips. Limit voltage to 135kV

RF cage - Features:

• HV attaches through the back as designed.
• G10 plate to support the HV cable
• Nitrogen flow, also through G10 plate aimed at the back of the hot deck
• Nitrogen flow, though the top of the cage, aimed at ceramic
• Dimensions need to be longer than the table to keep E fields on the hot deck lower than 3MV/m (air breakdown)

To Fix/Modify:

• DC bias supply - set point fix (John Musson)
• RF Cage (Mark/Fay)
• Back plate to allow increased cooling (open the hole)
• Move Xelera spellman to the GTS vault
• Software issues (contact Spellman again)
• Install new fiber link & check

(3)

Housekeeping:

• Remove RXX cables from GTS
• Remove JLab spellman
• Sort out the air and nitrogen lines.
• Buy a shop vac (ask Bubba)