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About Us
What is SESAME?(https://www.sesame.org.jo/about-us/what-is-sesame)
Governing Document of SESAME(https://www.sesame.org.jo/about-us/governing-document)
SESAME's Structure(https://www.sesame.org.jo/about-us/sesames-structure)
Members and Observers of SESAME(https://www.sesame.org.jo/about-us/members-sesame)
The Users of SESAME(https://www.sesame.org.jo/about-us/users-sesame)
Cooperative Instruments/Endorsements(https://www.sesame.org.jo/about-us/cooperative-sesame)
Information Material(https://www.sesame.org.jo/about-us/information-material)
SESAME in the Press(https://www.sesame.org.jo/about-us/sesame-in-the-press)
Historical Highlights(https://www.sesame.org.jo/about-us/historical-highlights)
Accelerators
SESAME’s Accelerators(https://www.sesame.org.jo/accelerators)
Machine Operation Schedule(https://www.sesame.org.jo/accelerators/operation-schedule-status)
Machine Description and status(https://www.sesame.org.jo/accelerators/operation-status)
Injector
Microtron(https://www.sesame.org.jo/accelerators/injector/microtron)
Booster(https://www.sesame.org.jo/accelerators/injector/booster)
Storage Ring(https://www.sesame.org.jo/accelerators/storage-ring)
Technology
Control & PSS(https://www.sesame.org.jo/accelerators/technology/control-pss)
Front Ends, Vacuum & Cooling
Front Ends, Vacuum(https://www.sesame.org.jo/accelerators/technology/front-ends-vacuum-cooling/front-ends-vacuum)
Cooling(https://www.sesame.org.jo/accelerators/technology/front-ends-vacuum-cooling/cooling)
Radio Frequency(https://www.sesame.org.jo/accelerators/technology/radio-frequency)
Mechanics(https://www.sesame.org.jo/accelerators/technology/mechanics)
Diagnostics(https://www.sesame.org.jo/accelerators/technology/diagnostics)
Magnets and IDs(https://www.sesame.org.jo/accelerators/technology/magnets-and-ids)
Power Supplies(https://www.sesame.org.jo/accelerators/technology/power-supplies)
Publications(https://www.sesame.org.jo/accelerators/publications)
Beamlines
SESAME’s Beamlines(https://www.sesame.org.jo/beamlines)
BM02 - IR(https://www.sesame.org.jo/beamlines/ir)
BM08 - XAFS/XRF(https://www.sesame.org.jo/beamlines/xafs-xrf)
ID09 - MS/XPD(https://www.sesame.org.jo/beamlines/ms)
ID10 - BEATS(https://www.sesame.org.jo/beamlines/beats)
ID11L - HESEB(https://www.sesame.org.jo/beamlines/heseb)
ID11R - TXPES(https://www.sesame.org.jo/beamlines/txpes)
Technology
Scientific Computing & Sys. Comm.(https://www.sesame.org.jo/beamlines/technology/scientific-computing-sys-comm)
Data Collection and Analysis(https://www.sesame.org.jo/beamlines/technology/data-collection-and-analysis)
Detectors & Electronics(https://www.sesame.org.jo/beamlines/technology/detectors-electronics)
Publications(https://www.sesame.org.jo/beamlines/technology/publications)
Publications(https://www.sesame.org.jo/beamlines/publications)
Press Office(https://www.sesame.org.jo/press-office)
Announcements(https://www.sesame.org.jo/press-office/announcements)
Highlights(https://www.sesame.org.jo/press-office/highlights)
News(https://www.sesame.org.jo/press-office/news)
Press Releases(https://www.sesame.org.jo/press-office/press-releases)
Newsletters(https://www.sesame.org.jo/press-office/newsletters)
SESAME'S
Publications(https://www.sesame.org.jo/sesames/publications)
Tenders(https://www.sesame.org.jo/sesames/tenders)
Calendar of Events + Training(https://www.sesame.org.jo/sesames/events)
Careers(https://www.sesame.org.jo/sesames/careers)
Jobs(https://www.sesame.org.jo/sesames/careers/jobs)
PhD Studentships(https://www.sesame.org.jo/sesames/careers/phd-studentships)
Postdoctoral Fellowships(https://www.sesame.org.jo/sesames/careers/postdoctoral-fellowships)
Billboard Events Other Bodies(https://www.sesame.org.jo/sesames/billboard-events-other-bodies)
About SR
What is a Synchrotron Light Source?(https://www.sesame.org.jo/about-sr/what-is-a-synchrotron-light-source)
Useful Links(https://www.sesame.org.jo/about-sr/useful-links)
For Users
SESAME User Office (SUO)(https://www.sesame.org.jo/for-users/sesame-user-office)
SESAME Users’ Committee (SUC)(https://www.sesame.org.jo/for-users/sesame-users-committee-suc)
User Guide(https://www.sesame.org.jo/for-users/user-guide)
User Support(https://www.sesame.org.jo/for-users/user-support)
Safety for Users(https://www.sesame.org.jo/for-users/safety-for-users)
Guest House(https://www.sesame.org.jo/guest-house)
Front Ends, Vacuum
Overview
Description and Specifications
Staff
Overview
Vacuum system:
Beam stability and beam lifetime are the major requirements for good operation of the synchrotron light sources. Pressures in the range of low 10-9 mbar are typical values to be achieved during operation in order to have a good beam lifetime; the pressure inside the vacuum chamber is produced by the thermal desorption and the photon stimulated desorption processes, the interaction between the electron beam with the residual gases leads to an elastic and inelastic scattering causing electron losses and reducing the lifetime of the beam.