P
Philip Varghese
Researcher at Fermilab
Publications - 18
Citations - 93
Philip Varghese is an academic researcher from Fermilab. The author has contributed to research in topics: Cryomodule & Beam (structure). The author has an hindex of 5, co-authored 18 publications receiving 90 citations.
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Journal ArticleDOI
Precision Vector Control of a Superconducting RF Cavity driven by an Injection Locked Magnetron
TL;DR: In this paper, the authors proposed a technique to regulate both radio frequency amplitude and phase in narrow band devices such as a Superconducting RF (SRF) cavity driven by constant power output devices ie magnetrons.
Journal ArticleDOI
Precision Vector Control of a Superconducting RF Cavity driven by an Injection Locked Magnetron
TL;DR: In this article, the amplitude and phase regulation of a Superconducting RF (SRF) cavity driven by constant power output devices (i.e., magnetrons) is discussed.
The LCLS-II LLRF System
Lawrence Doolittle,Gang Huang,Alex Ratti,Carlos Serrano,Ramakrishna Bachimanchi,J. Curt Hovater,Sandeep Babel,Bo Hong,D. Van Winkle,Brian Chase,Ed Cullerton,Philip Varghese +11 more
TL;DR: The SLAC National Accelerator Laboratory is planning an upgrade (LCLS-II) to the Linear Coherent Light Source with a 4 GeV CW superconducting (SCRF) linac.
Proceedings ArticleDOI
Multichannel vector field control module for LLRF control of superconducting cavities
Philip Varghese,Brian Chase,B. Barnes,J. Branlard,P.W. Joireman,Daniel Klepec,U. Mavric,V. Tupikov +7 more
TL;DR: The MFC (Multichannel Field Control) module is a 33- channel, FPGA based down-conversion and signal processing board in a single VXI slot, with 4 channels of high speed DAC outputs, which provides additional computational and control capability for calibration and implementation of more complex control algorithms.
Results from RF Tests of the First US-built High-gradient Superconducting Cryomodule
A. Hocker,Curtis Baffes,Kermit Carlson,Brian Chase,Darren Crawford,Ed Cullerton,Dean Edstrom,Elvin Harms,Tom Kubicki,Michael Kucera,J. Leibfritz,Jerry Makara,Dave McDowell,Oleg Nezhevenko,Dennis Nicklaus,H. Pfeffer,Yuriy Pischalnikov,Peter Prieto,J. Reid,Warren Schappert,Pierpaolo Stabile,Philip Varghese +21 more
TL;DR: Fermilab has built a cryomodule comprised of eight 1.3 GHz superconducting RF cavities for use in its Advanced Superconducting Test Accelerator (ASTA) facility as discussed by the authors.