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Ramp Generator for Electron Scanner in SNS Beam Profile Measurements System

by Vladimir V Peplov, Alexander V Aleksandrov, Willem Blokland
Publication Type
Conference Paper
Book Title
2023 IEEE Pulsed Power Conference (PPC)
Publication Date
Page Numbers
1 to 5
Publisher Location
New Jersey, United States of America
Conference Name
2023 IEEE Pulsed Power Conference (PPC-2023)
Conference Location
San Antonio, Texas, United States of America
Conference Sponsor
Conference Date

A new fast high voltage Ramp Generator to deflect an electron beam in the Electron Scanner is required at the Spallation Neutron Source (SNS) in the Oak Ridge National Laboratory. The Electron Scanner is used for non-destructively measuring the transverse profiles of the proton beam in the accumulator ring of the SNS [1]. The existing deflector is obsolete and needs to be replaced. A new Ramp Generator is proposed based on fast high voltage MOSFET power switches. Two configurations have been considered. One is bipolar, with two opposite polarity power supplies and one switch module or two single switches, and the other is unipolar, with one power supply and two switch modules. Schematics and performance of both options are described, and results of the prototype testing are presented in the paper.