Difference between revisions of "CEBAF GLASSMAN 450KV POWER SUPPLY CIRCUITS"

Latest revision as of 12:39, 22 May 2023

Cockroft-Walton voltage multiplier being lowered into SF6 tank by Neil Wilson

The CEBAF Glassman HVPS has the capability to produce -250 VDC for biasing the gun electrode to generate photocurrent for laser/gun alignment. It is not calibrated yet for QE measurements, but should be sufficient for producing QE maps. This was implemented by J. Hansknecht. The summary of the function with picture may be found in this logbook entry: https://logbooks.jlab.org/entry/4158694

Note: All master documents and schematics located at:

O:\inj_group\Official Electronic Design Packages\GLASSMAN WIRING UITF & CEBAF

@@ Line 9: / Line 9: @@
 [[media: CIS_GLASSMAN_BYPASS.docx]]
-*The CEBAF Glassman HVPS has the capability to produce -250 VDC for photocathode QE scans, or to produce photocurrent for laser/gun alignment. This was implemented by J. Hansknecht. The summary of the function with picture may be found in this logbook entry:
+*The CEBAF Glassman HVPS has the capability to produce -250 VDC for biasing the gun electrode to generate photocurrent for laser/gun alignment. It is not calibrated yet for QE measurements, but should be sufficient for producing QE maps. This was implemented by J. Hansknecht. The summary of the function with picture may be found in this logbook entry: https://logbooks.jlab.org/entry/4158694
-https://logbooks.jlab.org/entry/4158694
 *This is the circuit schematic [[media: glassman virtual ground circuit for QE scans at low voltage.pdf]]