CUORE / CUPID
The Cryogenic Underground Observatory for Rare Events (“CUORE“) is an experiment located at the Gran Sasso National Laboratory in Assergi, Italy. The CUORE collaboration is an international group of physicists from many countries, primarily from Italy and the US.
CUPID is the “CUORE Upgrade with Particle Identification”, a research and development project for the CUORE detector.
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The Cryogenic Underground Observatory for Rare Events (CUORE) required the ultracleaning of around 5000 Copper parts. The recipee found for the required cleaning consists in the following steps:
1. Preliminary wipe cleaning
2. Ultrasound Cleaning
3. Ultrasound Rinsing
4. Centrifugal Barrel Tumbler
5. Ultrasound Rinsing
6. Electropolishing
7. Rinsing
8. Ultrasound Rinsing
9. Chemical Etching
10. Passivation
11. Ultrasound rinsing
12. Vacuum Cleaning
13. Careful vacuum packaging