Photon stimulated desorption of neutral species from aluminum

Conference · Tue Jan 01 04:00:00 EST 1991

OSTI ID:5363748

Chou, T S

Photon Simulated Desorption of neutral species (PSD) is the major dynamic gas load in electron synchrotron light source. In the National Synchrotron Light Source, PSD presented initial machine commissioning difficulty. Sensitivity to surface contamination on PSD had been experienced during an incident of Fomblin Oil contamination. U10B-Photon Stimulated Desorption Experimental Station is constructed to investigate: (1) the degree of the contribution to the photon stimulated desorption (PSD) from primary photon flux and scattered secondary photon flux, (2) the underlying mechanism for photon stimulated desorption, (3) criteria to chose the proper beam tube material for future a accelerator such as the Superconducting X-Ray Lithography Source (SXLS), Free Electron Laser (FEL), Superconducting Super Collider (SSC), Advanced Light Source (ALS) etc. In this report, only photon stimulated desorption of neutral species (PSD) from aluminum with different surface treatments is reported to show the great potential for this station to investigate beam tube material selection. 6 refs., 2 figs., 1 tab.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5363748
• Report Number(s): BNL-46474; CONF-910505--396; ON: DE91017004
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
43 PARTICLE ACCELERATORS
430303 -- Particle Accelerators-- Experimental Facilities & Equipment
430400 -- Particle Accelerators-- Storage Rings
ALLOYS
ALUMINIUM ALLOYS
BOSONS
CLEANING
DEGASSING
DESORPTION
ELECTRIC DISCHARGES
ELEMENTARY PARTICLES
GLOW DISCHARGES
MASS SPECTRA
MASSLESS PARTICLES
PHOTONS
SPECTRA
STORAGE RINGS
SURFACE CLEANING
SURFACE FINISHING
VACUUM SYSTEMS