Omer Rahman
Research Staff 4 Physics, Instrum. Electron Source Group, Collider Accelerator Department
Brookhaven National Laboratory
Collider Accelerator Department
Bldg. 911A
P.O. Box 5000
Upton, NY 11973-5000
(631) 344-7908
orahman@bnl.gov
Omer Rahman is an accelerator physicist at the Collider Accelerator Department at Brookhaven National Lab. He got his PhD in Physics from Stony Brook University in 2016. He joined BNL as a post doc in 2016 and eventually as a staff scientist in 2019. He is the liaison physicist for the EIC polarized electron source project.
Expertise | Research | Education | Appointments | Publications
Expertise
High Voltage DC electron guns, Polarized electron sources and photocathodes, Beam dynamics for DC electron sources, High intensity and high average current electron sources, extreme high vacuum for acclerator applications.
Research Activities
- High bunch charge DC polarized electron source
- High average current DC unpolarized electron source
- Photocathode R&D for polarized photocathodes
- Beam dynamics simulation and design for test beamlines for electron sources
- High voltage commissioning
- Vacuum simulation and R&D towards extreme high vacuum in accelerators
Education
PhD in Physics 2016, Stony Brook University, Stony Brook NY, USA
Bachelors of Science in Physics 2009, University of Dhaka, Bangladesh
Professional Appointments
Associate Physicist, Electron source development group - 2021 - present
Assistant Physicist, Electron source development group - 2019 - 2021
Post Doctoral Researcher, Electron source development group - 2016 - 2019
Selected Publications
- Wang E, Rahman O, Biswas J, et al (2024) High-intensity polarized electron gun featuring distributed Bragg reflector GaAs photocathode. Applied Physics Letters 124:. https://doi.org/10.1063/5.0216694
- Wang E, Rahman O, Skaritka J, et al (2022) High voltage dc gun for high intensity polarized electron source. Physical Review Accelerators and Beams 25:. https://doi.org/10.1103/physrevaccelbeams.25.033401
- Rahman O, Wang E, Ben-Zvi I, et al (2019) Increasing charge lifetime in dc polarized electron guns by offsetting the anode. Physical Review Accelerators and Beams 22:. https://doi.org/10.1103/physrevaccelbeams.22.083401
- Wang E, Litvinenko VN, Pinayev I, et al (2021) Long lifetime of bialkali photocathodes operating in high gradient superconducting radio frequency gun. Scientific Reports 11:. https://doi.org/10.1038/s41598-021-83997-1
- Biswas J, Wang E, Gaowei M, et al (2021) High quantum efficiency GaAs photocathodes activated with Cs, O2, and Te. AIP Advances 11:. https://doi.org/10.1063/5.0026839
- Rahman O, Biswas J, Gaowei M, et al (2019) New Activation Techniques for Higher Charge Lifetime from GaAs Photocathodes. Proceedings of the 10th Int Particle Accelerator Conf IPAC2019:Australia. https://doi.org/10.18429/JACOW-IPAC2019-TUPTS102
Brookhaven National Laboratory
Collider Accelerator Department
Bldg. 911A
P.O. Box 5000
Upton, NY 11973-5000
(631) 344-7908
orahman@bnl.gov
