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Mike Seidel on Vacuum Issues 9.9.2005 Pressure of 1x10**-5 not a problem for Undulator radiation damage due to electron-gas scattering (ca. 1000 years.

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Präsentation zum Thema: "Mike Seidel on Vacuum Issues 9.9.2005 Pressure of 1x10**-5 not a problem for Undulator radiation damage due to electron-gas scattering (ca. 1000 years."—  Präsentation transkript:

1 Mike Seidel on Vacuum Issues Pressure of 1x10**-5 not a problem for Undulator radiation damage due to electron-gas scattering (ca years undulator life time) Ions below atomic mass of 100 do not get trapped (that takes care of the fast ion-instability) No noticeable reduction of the photon flux due to vacuum (found by comparing pressure and length to that of the gas absorber upstream of experimental hall)

2 Simulation mit/ohne int. Pumpe ohne Pumpe stark Leitwertebegrenzt Pumpgeschw. pro m lokale Pumpe NEG Streifen mit NEG Pumpe

3 Weitere Alternativen dünnwandiges Cu oder Stahlrohr, vergoldet? Vorteil: Wandstärke bis 0.3mm möglich Lötverbindung galvanische Goldbeschichtung


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