<html><body><div style="color: rgb(0, 0, 0); font-family: arial,helvetica,sans-serif; font-size: 12pt;"><div><br><b>Subject: </b>[Accelerator_staff] Accelerator Seminar: 8/27/15 - Faya Wang<br></div><div><br></div><div data-marker="__QUOTED_TEXT__"><div style="color: rgb(0, 0, 0); font-family: tahoma,new york,times,serif; font-size: 12pt;" data-mce-style="font-family: tahoma,new york,times,serif; font-size: 12pt; color: #000000;"><div>ACCELERATOR SEMINAR<br></div><br><div>"Macroscopic Field Emission"<br></div><br><div>Faya Wang<br></div><div>SLAC National Accelerator Laboratory<br></div><br><div>Electron emission from metal surfaces in a high field environment generates local electric fields at the emission sites that can build up over time to enhance the emission. This build up depends on the rf frequency and in the case of a waveguide, the group velocity. This phenomenon may explain the observed dependence of breakdown rates on the rf characteristics of the structures, in particular, those relating to rf power flow.</div><br><div>Thursday, August 27, 2015<br></div><div>11:00 a.m.<br></div><div>Test Lab, Room 1227<br></div><br><div>Seminar archives are found here: <a title="https://www.jlab.org/accel/seminars/2015.html" href="https://www.jlab.org/accel/seminars/2015.html" target="_blank" data-mce-href="https://www.jlab.org/accel/seminars/2015.html">https://www.jlab.org/accel/seminars/2015.html</a><br></div><br><div><div>------<br><b><span style="font-size: small;" data-mce-style="font-size: small;">Audrey N. Barron</span></b><br><span style="font-size: small;" data-mce-style="font-size: small;">Administrative Assistant</span><br><span style="font-size: small;" data-mce-style="font-size: small;">Center for Advanced Studies of Accelerators</span><br><span style="font-size: small;" data-mce-style="font-size: small;">Jefferson Lab</span><br><span style="font-size: small;" data-mce-style="font-size: small;">757-269-7327</span><br><span style="font-size: small;" data-mce-style="font-size: small;"><a href='http://<a href="mailto:anichols@jlab.org">anichols@jlab.org</a>Email Me</a> ' target="_blank" data-mce-href='http://<a href="mailto:anichols@jlab.org">anichols@jlab.org</a>Email Me</a> '>anichols@jlab.org</a></span> / <span style="font-size: small;" data-mce-style="font-size: small;"><a href="http://www.jlab.org" target="_blank" data-mce-href="http://www.jlab.org">www.jlab.org</a></span> <br><br><img style="border: 0px currentColor; border-image: none;" src="cid:ab353585c9d3eb93c6ad8ff2ed7e210c6ade6994@zimbra" data-mce-style="border: 0px none;" data-mce-src="cid:ab353585c9d3eb93c6ad8ff2ed7e210c6ade6994@zimbra"><br></div></div></div><br>_______________________________________________<br>Accelerator_staff mailing list<br>Accelerator_staff@jlab.org<br>https://mailman.jlab.org/mailman/listinfo/accelerator_staff<br></div></div></body></html>