Instrumentation Division Seminar

"The Problems with Photoguns"

Presented by Matt Poelker, Thomas Jefferson National Accelerator Facility

Wednesday, August 8, 2018, 2:30 pm — Large Conference Room, Bldg. 535

Although the field has advanced considerably over decades, improving the performance of DC high voltage photoguns can be painfully slow and frustrating, especially when attempting to advance the state of the art. At the Jefferson Accelerator Facility, the gun group has adopted a photogun design with inverted-insulator geometry as a means to reach higher operating voltages while also improving gun vacuum and photocathode lifetime. This talk describes ongoing photogun projects at Jefferson Lab, highlighting some recent successes but also describing efforts that corrected one problem and introduced another.

Hosted by: John Smedley

14230  |  INT/EXT  |  Events Calendar

 

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