Title :
Photon stimulated desorption of neutral species from aluminum
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
Abstract :
Photon stimulated desorption (PSD) of neutral species 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. The U10B-Photon Stimulated Desorption Experimental Station was constructed to investigate the degree of the contribution to the PSD from primary photon flux and scattered secondary photon flux, the underlying mechanism for photon stimulated desorption and criteria for choosing the proper beam tube material for future accelerators. Only photon stimulated desorption of neutral species from aluminum with different surface treatments is reported to show the great potential of this station to investigate beam tube material selection.<>
Keywords :
beam handling equipment; electron accelerators; synchrotrons; Al; Fomblin Oil contamination; National Synchrotron Light Source; PSD; U10B-Photon Stimulated Desorption Experimental Station; beam tube material; electron synchrotron light source; initial machine commissioning; major dynamic gas load; neutral species; primary photon flux; scattered secondary photon flux; surface contamination; Aluminum; Electrons; Light scattering; Light sources; Particle beams; Particle scattering; Petroleum; Surface contamination; Surface treatment; Synchrotrons;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164942
