Paper | Title | Page |
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THPMK110 | 300 kV DC High Voltage Photogun with Inverted Insulator Geometry and CsK2sb Photocathode | 4571 |
SUSPF028 | use link to see paper's listing under its alternate paper code | |
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Funding: This work is supported by the Department of Energy, Laboratory Directed Research and Development funding, under contract DE-AC05-06OR23177 A compact DC high voltage photogun with inverted-insulator geometry was designed, built and operated reliably at 300 kV bias voltage using alkali-antimonide photocathodes. This presentation describes key electrostatic design features of the photogun with accompanying emittance measurements obtained across the entire photocathode surface that speak to field non-uniformity within the cathode/anode gap. A summary of initial photocathode lifetime measurements at beam currents up to 4.5 mA is also presented. |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-THPMK110 | |
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