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Module QC cooling test setup:


Module:

  1. Stage 1: test with dummy module ( now we have 6 quards and 1 singlet)
  2.  Stage 2: test with module

Power Supply:

  1. Power for the peltier: bk precision power supply 9130

Cooling unit: 

  • Peltier: 4 sets to be tested:
  1.  2 layer peltier (recommend): Laird 108161050003 (53W) and Laird 387004685 (125W)
  2.  1 Layer peltier: Sheetak SKCM-240-11-T100-NS-TF00-ALO (75W)
  3. 1 Layer peltier: HP-199-1.4-0.8 (120W)
  4. 1 Layer peltier: HP-199-1.4-1.15 (175W)
  • Chiller: ThermoCube
  • Coolant
  • Dry Air
  • Vacuum pump
  • TIM sheet: Panasonic EYG-S0909LZX2
  • Cooling unit foam

Monitoring unit

  • Raspberry pie and RTD board

           Database: link

  • Sensor:
  1. Temperature sensor: pT100
    1. T3: module (on the dummy module)  
    2. T2: Vacuum chuck
    3. T1:  Coldplate
  • Humidity sensor:SHT85
  1. H1: Inside foam box
  2. H2: Inside isolation box

Setup from other group 

The ITk pixel module cooling Twiki page is the main source for the common information. This page captures the local module cooling setup information at the SLAC Integration site. A talk by Magne Lauritzen (Jul/7/2020) has some updated status and additional pictures.    

Equipment recommendation:

  cooling: 

  • TIM: Panasonic EYG-S0909ZLX2 thermal resistance: 12.5 mK/W
  • peltier:
    • TEC 1 : Laird 108161050003 TEC 2 : Laird 387004685
    • parallel connecting

    • PSU current / voltage requirement : 11 A / 8 V

  • Coolant : 70% water, 30% ethylene glycol
  • Coolant Temperature : -10C
  • Dry air : 1.5L/min

  • chiller requirements: capacity > 385 W


System Test Description from Bologna: [can check this details: for Peltier and chiller need to check]

Similar settings are shown here presented by Argonne: link slide6 link2

Equipment setup:

  1. power supply:

    1. current / voltage: 0-10A / 0-32V

    1. Wiener Mpod (2channel, HV/LV)

    2. Rohde and Schwarz HMP4040

  2. Monitoring:

    1. Temperature: NTC

    2. Humidity (inside cooling unit): SHT85, (+/- %RH and +/- 0.1 C)

    3. Humidity (inside cold box): Thorlabs TSP01 (+/- accuracy)

    4. Arduino Mega 2560

  3. Cooling:

    1. Cooling unit: qual cooling unit v5

    2. Chiller: Julabo HL CF41

    3. Coolant: 100% silicone oil

    4. Dry, room temperature nitrogen

    5. Room temperature vacuum

    6. TIM sheet: Panasonic EYG-S0909LZX2

    7. TEC combination:

      1. TEC 1: Larid 1081611050003

      2. TEC 2: Larid 387004685


Components :

List of components: https://docs.google.com/spreadsheets/d/1dNT5ja_pFS2P6HJojZd5K-uXMyx7_lAjD4M-GH4URZ4/edit?usp=sharing

Quad Cooling Unit Component Collection Status

Shipment from Bergen (received)

  • Vacuum chucks x 2 + spare gasket
  • POM bottom plates x 2 
  • Coldplates x 2

Shipment from CERN

The following items are listed by names and counts from each box of the entire package from CERN. For example, there are 6 POM base plates in total, but they came as sets of there in two separate boxes. Pictures will come soon.

  • Data cables for triplets RD53a ITk Pixel (x3)
  • POM base plates (x3)
  • POM base plates (x3) + coldplates for triplets "linear type" (x3) + vacuum chucks (x3)
  • Triplet adapter cards RD53a ITk Pixel (x6)
  • Plastic screws: RENY; NYLON M3x35, M3x25, M3x40, washers (check count for all the items) + coldplates for triplets "ring type" (x3)
  • Foam insulation sets: Linear type (x3), Ring type (x3), presumably Quad V0.4 (exact type is not labeled, actual purpose to be checked) (x2)
  • 25m coolant tubes
  • 5m dry air / vacuum tubes







They're being shipped from CERN 12/11 https://edh.cern.ch/Document/8559982 together with the Triplet Cooling unit. 
Some notes from Saverio:
-- M6 bolt are 10/32 - we need to find more here.
-- The coolant tube is slightly shorter
-- There are spares for all the screw types and the vacuum chucks rubber pads have been already cut 

Items to be acquired by INT site 

  • Peltier devices (see the summary of this presentation for recommendations and page 13 for the list of alternatives):
  • Panasonic EYGS0909ZLX2 TIM sheets (2 sheets 4x4cm2 per cooling unit)
  • Temperature sensors (NTC or PT100s, see assembly manual)

Assembly Manuals

Triplet cooling unit assembly procedure (CERN box)

Quad cooling unit assembly procedure (CERN box)

Operation Instructions

E-mail from Magne Lautitzen to atlas-itk-pixel-modules-TestSystem (Oct/26/2020): 

To operate the cooling unit, you will need the following infrastructure:

  • Vacuum source
  • Dry air or nitrogen source
  • Circulating chiller
  • Peltier power supply and/or controller

The amount of dry air or nitrogen needed to maintain a dry atmosphere in the cooling unit will depend on the humidity in your lab and the lowest temperature you want to reach on the module. A ballpark figure is 1.5L/min at -25C.

The circulating chiller must have a cooling capacity that depends on how cold you need to take the modules. See page 13 on this presentation for recommendations for reaching -55C.

For stable temperature control of the modules, you will need a peltier controller. I  have been successfully using the Meerstetter 1089.


To avoid condensation on the peltier devices, you must maintain a dry atmosphere in the cooling unit whenever there is coolant flowing through the coldplate. If condensation forms on the peltier devices, it will degrade the performance of the cooling unit because ice and water is an excellent conductor of heat. Getting rid of this condensation requires a long term “bakeout” of the coldstack and is best avoided.

Setup for preliminary cooling test

  • cooling unit: from Marco
    • 2 moisture sensor (SHT85 and the DHT22) [sensor interface using I2C]
    • 4 RTD 

      


  • Interlock 
    •  Overheating = the chiller fails and the PS keep running
      • temperature on the cold plate
    •  Condensation = Dry air fails, moisture condense and destroys the device
      • dew point < air temperature
    • module temperature drop ←55C
    • communication => fail safe 

Check Equipments we have

Thermo Cube: Chiller manual

             * CPC Quick disconnects are attached with chiller, need some coupling insert to connect to our tube (ID ~8mm/ OD ~11mm)

                  

              * options we have to are in this link  (but seem no 1/4 in option)

Chiller setup with filter:


Peltier TE-127-1.0-2.5: 

Empty load step up

 

Power supply: bk precision power supply 9130

Peltier: Peltier TE-127-1.0-2.5

Temperature sensor: pT100

Readout: RTD Data Acquisition Stackable Card for Raspberry Pi with Raspberry Pi

Firmware to control:  https://github.com/SequentMicrosystems/rtd-rpi

connecting to the raspberry pi:

Readout RTD database:http://atlascr.slac.stanford.edu:3000/d/AhqDEQ_Mk/dcs-cooling-tests?orgId=1&from=1619033502000&to=now&refresh=1m

(login atlas/atlas)

Setting up SHT85

Connecting SHT85 to raspberry pi:

PI to SHT85 (datasheet)
pin 1 3.3V.  to   2 VDD
pin 3 SDA to 4 SDA Serial data
pin 5 SCL to 1 SCL Serial clock
pin 9: ground to 3 VSS Ground












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