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Publication Information
Title IMPROVED ELECTROSTATIC DESIGN OF THE JEFFERSON LAB 300 KV DC PHOTOGUN AND THE MINIMIZATION OF BEAM DEFLECTION
Abstract Electron beam with high bunch charge and high repetition rate is required for electron cooling of ion beam to achieve the required high luminosity of pro-posed electron-ion colliders. Improved design of the -300 kV DC high voltage photogun at Jefferson Lab was incorporated toward overcoming the beam loss and space charge current limitation as experienced in the original design. To reach the bunch charge goal of ~ few nC within 75 ps bunches, the existing DC high voltage photogun electrodes and anode-cathode gap were modified to increase the longitudinal electric field (Ez) at the photocathode. The anode-cathode gap was reduced to increase the Ez at the photocathode and the anode aperture was spatially shifted with respect to the beamline longitudinal axis to minimize the beam deflection introduced by the geometric asymmetry of the inverted insulator photogun. The electrostatic design and the beam dynamics simulations were performed to determine the required modification. Beam based mea
Author(s) Md. Abdullah Mamun, Riad Suleiman, Carlos Hernandez-Garcia, Bubba Bullard, Joe Grames, Matthew Poelker, Geoffrey Krafft, W. Sajini Wijethunga, Gabriel Palacios-Serrano, Jean Delayen
Publication Date August 2022
Category Beam Dynamics
Document Type Meeting, Proceedings
Primary Institution Thomas Jefferson National Accelerator Facility, Newport News
Affiliation Accelerator Ops, R&D / Ctr For Injectors&Sources / Ctr for Injectors&Sources
Funding Source Nuclear Physics (NP), U.S. DOE Contract No. DE-AC05-06OR23177
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-ACC-22-3704 OSTI Number: 1903127
LANL Number: Other Number: DOE/OR/23177-5596
Associated with an experiment No
Associated with EIC No
Supported by Jefferson Lab LDRD Funding Yes
LDRD Number(s)
Meeting / Conference
Meeting Name NAPAC2022 (2022 North American Particle Accelerator Conference)
Meeting Date 8/7/2022
Document Subtype Paper (proceedings only)
Proceedings
Title NAPAC2022
Editor(s) Sandra Biedron, Evgenya Simakov, Stephen Milton, Petr M. Anisimov, Volker RW Schaa
Publisher JACOW
Refereed No
Page Number 655-658
Year 2022
Attachments/Datasets/DOI Link
Document(s)
WEPA17_Manuscript2.pdf (STI Document)
wepa17.pdf (Accepted Manuscript)
DOI Link
Dataset(s) (none)
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