Tom Banks: Parts and tasks

• Copper frames are brand new cuore frames from Enzo, holes for pins need to be drilled
• List of parts/tasks on CUORE wiki
• Clarification of tasks on wiki
• Find canister, there is a can in Cino CR (Tom) not sure if it is compatible Pirro tower  ? Can in hall C is Pirro.  Carlo: there is enough material to make a new can, there is a top and bottom plate that can be reused
• Pins: male OK, female no more extra (Tom), Carlo: there should be plenty, some confusion on pins existence.  Need 32x3 of them ? Tom is getting information to make more if necessary
• Teflon spacer: We will use CUORE Tf spacer. Are they clean already ? Carlo thinks yes but this should be checked
  
• Gluing female pins: Glue before is OK ? We need to test this cold, does parylene get in tube ? Carlo: Ke's assembly test worked, assemble everything ,except crystals, then coat. 
  
• Thickness ? 
  
• Is this an issue for construction/assembly.
  
• Can we use teflon as mask and then replace with uncoated teflon.
  
•  What happens if you remove a part of parylene and then cool down ?
  
• How well can we control thickness: Ke can control to 5%, we should test reproducibility
• Richard worried about changing squeezing of crystal. 
  
• Carlo: poly wrapping was put under teflon during CCVR ? Tom: thinks not , Tom check pictures and says Carlo is wrong
  
• Richard: worried about change nature for contact between teflon and TeO2, Carlo: coating teflon is nice because cleaniness of teflon was not validated, afraid of cooling after cutting parylene envelope.   
• Hold teflon with polyethlene ? 
• Carlo: Controlling dimensions was not carefully done in the past, thinks we can increase thickness by 100 microns without a problem, no one knows if teflon is within precise specs.  Will measure teflon soon and pick "smaller" teflon pieces
• Ke, according to previous measurement teflon sizes vary by 100 microns
• Richard: Over compression may cause cracking -- Carlo is not sure -- under compression causes vibration
• Crystals
• Concern about using CCVR8/9 crystals because too hot in 210Po, 210Po contributes ~30% of continuum bkg
• Tom says using CCVR 9/8 would save a lot of time and labor
• Ke: Can you safely transplant crystal from CCVR to new setup ? 
  
• Tom: CCVR8 crystals are vacuum sealed now, bonds 
• SJ: Will this clash with SICCIS plan to repolish crystals in March 2013 ?
• Ke: 210Po activity 0.003 Bq/kg would probably be acceptable ... then ~10% of continuum bkg.  Ke CCVR8 10mHz/kg now should be 2.5mHz, should be ok
  
• Tom: Thermister removal might introduce residual bkg on crystal
• Tom will check if CCVR 8 crystals are in usable condition
• Tom: bond 40A and 39 B and C  ? Ke maybe bond a little more 40A ? Already shipped to Chiara,
  
• Tom: The NTDs should be cleaned after bonding, should go through the methonal procedure
  
• Tom: Heaters ? Do we have them, Ke: alot have been cleaned by Seth, Carlo: there should be way enough heater
• Tom: Do we have enough constantin wire ?  Ke likes LNGS constantin wire ? Where was it bought ? No one knows, maybe Chiara knows ?
• Tom: Gluing of NTDs, use robot ? Yes, done with 2 CCVR 8 , would glue with wires, has been done but difficult, only one on each crystal, never 2 on crystal, not virgin crystal, possible cross contamination of GB with crystal ? Carlo, always try to avoid material that has been put in dichloromethane
• Ke: Claudia recommends using auto dispenser but , will Tom be avail July 17- Aug 31, Claudia knows, Paulo knows how to do it
• Tom: Glove box ?  Assemble in old Cino GB ? Ke: Use EOW GB for assembly ? Carlo: it is big enough , GB from TTT assembly test should still be there
  
• Carlo: Believe better to put machine in Cino CR,
  
• Ke: Do we have permission to use EOW GB ? Not clear, lots of giggling
• SJ: Do the deposition LNGS or at Berkeley
• Carlo: Worried about cosmogenic , SJ copper at surface in LNGS ? 
• SJ: Using it at Gran Sasso is inconvenient
• SJ: Automatic fill system, cold trap refill frequency ? Space for external dewar ? Pump exhaust ?
  
• Carlo: Is there a clean room in Berkeley ?  SJ: Can be arranged at LBL, JW: Has a pump we can try
• Carlo: Suggested multi-roots pump, ACP-28/40s, JW concerned about ultimate pressure ? Carlo: ATP series can go to 10^{3} mbar,        
• Pump exhaust duct: exhaust duct can be arranged, pump should be in CR
  
• JW: how much freedom in pressure, Ke: must get 10mtorr or lower
  
• Carlo: ICPMS sample container ...  he will get back to Ke
  
• Ke: Decision on location ?  SJ ... need to see how things go ...
  
• What was driving schedule: Carlo, Stefano's cryostat schedule,  need to take into account  running time
• Carlo: If we stay on oil pump, how many cycles/ operations in Berkeley ? How much time for testing ?  SJ: Too early to say honestly
• Ke: Italian customs situation ? SJ: Piece of university equipment, loan we will bring it back ? Richard has tax treaty ?
  
• Richard: LN2 refills system, Steve Dardin may have parts, Joe will check with him