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Maintenance for DR(Pandora)

Wednesday, January 17, 2007
Cleaning Gauges, Valves, and Gas Handeling Lines
Equipment/Beam Line: 

cold cathode gauge was really dirty! It was cleaned(see the picture)and put back. Still the system was not pumping down ok. Diffusion pump (IVC/OVC) was dirty too. It was dirty and full of junks. All the parts were taken out and got cleaned. O rings were replaced. Valves numbers 35,36,27, and 28 were disassembled and IVC cold cathode gauge was in a bad shape. It was cleaned and an angle VAT valve was added.

System assembled back together and pump down was ok.

Rahim Abasalti