Reactive gas cleaning of accelerator vacuum systems

Conference · Sun Feb 04 23:00:00 EST 1990 · AIP Conference Proceedings (American Institute of Physics); (USA)

OSTI ID:7066148

Hseuh, H C; Cui, X ^[1]

---

1. AGS Department, Brookhaven National Laboratory, Associated Universities, Inc., Upton, NY 11973 (USA)

Chemical cleaning, vacuum firing, glow discharge cleaning, and in situ bakeout have become standard practices for removing surface contaminants in the ultra high vacuum systems of particle accelerator and storage rings. In this work, an alternative method, reactive gas cleaning with nitric oxide (NO), has been studied. It was applied to several accelerator vacuum chambers made of stainless steel with surfaces ranging from clean to heavily contaminated by hydrocarbons. The effectiveness of the NO treatment has been compared with those of other treatments and found to be superior to vacuum firing alone, and is comparable with that of glow discharge cleaning.

• OSTI ID: 7066148
• Report Number(s): CONF-8904230--
• Journal Information: AIP Conference Proceedings (American Institute of Physics); (USA), Journal Name: AIP Conference Proceedings (American Institute of Physics); (USA) Vol. 199:1; ISSN APCPC; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430300* -- Particle Accelerators-- Auxiliaries & Components
ACCELERATORS
ALLOYS
BAKING
CHALCOGENIDES
CHEMICAL REACTIONS
CLEANING
CONTAMINATION
HEATING
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
STAINLESS STEELS
STEELS
SURFACE CLEANING
SURFACE CONTAMINATION
SURFACE FINISHING
VACUUM SYSTEMS