Publications
Publication Information
| Title | A compact -300 kV dc inverted insulator photogun with biased anode and alkali-antimonide photocathode |
| Authors | Carlos Hernandez-Garcia, Philip Adderley, Donald Bullard, Jay Benesch, Joseph Grames, Joseph Gubeli, Fay Hannon, John Hansknecht, Kevin Jordan, Reza Kazimi, Geoffrey Krafft, Md. Abdullah Mamun, Gabriel Palacios-Serrano, Bernard Poelker, Marcy Stutzman, Riad Suleiman, Michael Tiefenback, Yan Wang, W. Sajini Wijethunga, Joshua Yoskowitz, Shukui Zhang, Cristhian Valerio Lizarraga, R. Montoya Soto, Adriana Canales Ramos |
| JLAB number | JLAB-ACC-19-3105 |
| LANL number | (None) |
| Other number | DOE/OR/23177-4845 |
| Document Type(s) | (Journal Article) |
| Category: | Electron/Positron Sources |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | Yes |
| LDRD Numbers: | 2018-LDRD-5 |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Physical Review Accelerators and Beams Volume 22 Page(s) 113401 Refereed | |
| Publication Abstract: | This contribution describes the latest milestones of a multiyear program to build and operate a compact -300 kV DC high voltage photogun with inverted-insulator geometry and alkali-antimonide photocathodes. Photocathode thermal emittance measurements and quantum efficiency charge lifetime measurements at average current up to 4.5 mA are presented, as well as an innovative implementation of ion generation and tracking simulations to explain the benefits of a biased anode to repel beamline ions from the anode-cathode gap, to dramatically improve the operating lifetime of the photogun and eliminate the occurrence of micro-arc discharges. |
| Experiment Numbers: | other |
| Group: | Ctr for Injectors&Sources |
| Document: | |
| DOI: | https://journals.aps.org/prab/pdf/10.1103/PhysRevAccelBeams.22.113401 |
| Accepted Manuscript: | GTS paper published in PRAB 2019.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |