Chemical treatment platforms

Chemistry Laboratory and clean rooms (Laboratori Nazionali di Legnaro, PD)

Chemistry laboratory and clean room facility for cavity surface treatments and assembly. Two chemistry laboratories are active in Legnaro. The main activities that can be performed are:

  • Preparation of surfaces for UHV systems assembly (ultrasonic degreasing, deoxidation, drying with solvents),
  • Surface preparation of components for subsequent braze welding in a high vacuum furnace,
  • Chemical and electrochemical polishing of the surface of copper and niobium components (resonant cavities, cryostats, detectors),
  • Treatments of low-melting alloys; studies of alternative chemical treatments,
  • Supply of ultrapure deionized water, ultra-cleaning of copper components from radioactive contaminants,
  • An ISO 5 class clean room is available for cavity assembly.

Lights

Semi-automatic chemical plant for QWR treatments


CHEMICAL TREATMENT LAB (LASA)

Clean Room ISO4 Class:

  • The surface available is about 9 m2 equipped with particulate counter, nitrogen, helium and ultra-pure water,
  • Cleaning of objects with ultra-pure water at 100 bar, filtered at 20 nm, is possible inside the room.

Ultra-pure water production: For the needs of treatment of superconducting components, an ultra-pure water plant is available to produce water with resistivity at 18 MΩ cm. The rate of production of ultra-pure water is 10 l/min, while the Elix system provides 70 l/h. A 6000 l tank is a buffer to produce the 18 MΩ cm water.
RF Laboratory : To test the RF cavities, many RF instruments are available : amplifiers in different frequency:

  • 500-800 MHz (650 W),
  • 3 GHz (100W),
  • 9 GHz (200 W).
Lights

Chemical treatments


Location

INFN (Italy)


Contact

For further information please email: amici@sa.infn.it.