General Lab Information

Vahid Ranjbar

System Manager EIC, Injector, Electron-Ion Collider

Vahid Ranjbar

Brookhaven National Laboratory

Electron-Ion Collider
Bldg. 911B
P.O. Box 5000
Upton, NY 11973-5000

(631) 344-8218
vranjbar@bnl.gov

Vahid H. Ranjbar is currently the Electron-Ion Collider's (EIC) Level II System Manager for the Electron Injectors. He is also leading the design of the EIC's Rapid Cycling Synchrotron (RCS). He earned his Ph.D. in Physics from Indiana University in Bloomington IN in 2002. His thesis work dealt with polarization in the AGS and RHIC machine which was being commissioned at that time. Later he did his post-doc at Fermilab working in the Tevatron Department. While there, he helped develop an orbit stabilization system and head-tail chromaticity monitor, as well as pursued research in the effects of restive-wall impedance and higher order chromaticity on beam dynamics. In 2006, he joined Tech-X Corp as a research scientist. There, he was the Principal Investigator for two Phase I and one Phase II SBIR Grant  to develop beam-beam simulation codes and spin tracking codes. In 2011, he joined BNL’s Collider-Accelerator Department, working as Run Coordinator for the FY13 and FY17 polarized proton runs. More recently he was part of  BNL succesfull bid for the DOE site selection of the EIC,  in that capacity he worked on the new novel designs for the Rapid Cycling Synchrotron and headed up the electron injector chain aspect of BNL's EIC proposal. 

Expertise | Research | Education | Appointments | Awards


Expertise

Spin and beam dynamics in accelerators and code development for high performance computing involving orbit and spin simulations.

Research Activities

He currently is studying mechanisms for polarization loss in hadron machines with snakes during acceleration with overlapping spin resonance as well as at studying mechanisms for polarization lifetime at fixed energies. He is also studying approaches to optimize both polarization and beam transmission during the acceleration cycle of electrons in the EIC's proposed Rapid Cycling Synchrotron.

Education

Ph.D. Accelerator Physics Indiana University, Bloomington, IN (2002)                                                 (Thesis Advisor: S. Y. Lee)

M.S. Physics Solid State Theory, Miami University, Oxford, OH (1998)

B.S. Finance, Miami University, Oxford, OH (1992)

Professional Appointments

• American Physics Society, Division of Beams, Plasma

• APS “International Freedom of Scientists Committee” 2009-2012

Awards & Recognition

  • Acceleration of Spin Tracking in Colliding Beam Accelerators DOE/NP SBIR Phase I and Phase II grant (PI) 1.1 million dollars 2010-2014
  • Beam Simulation Tools DOE/NP SBIR Phase I grant (PI) 100K 2008-2009
Vahid Ranjbar

Brookhaven National Laboratory

Electron-Ion Collider
Bldg. 911B
P.O. Box 5000
Upton, NY 11973-5000

(631) 344-8218
vranjbar@bnl.gov

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