PIP-II Document 546-v1

Protection Electrode Signal Processing Algorithm

Document #:
Document type:
Tech Note
Submitted by:
Daniil Frolov
Updated by:
Daniil Frolov
Document Created:
09 May 2017, 18:15
Contents Revised:
09 May 2017, 18:15
Metadata Revised:
09 May 2017, 18:15
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Both 50 Ohm and 200 Ohm PIP2-IT MEBT kickers have a pair of protection electrodes to protect the kicker plates from beam scraping. This paper derives a digital processing algorithm intended to protect the electrode from damage in real-time. It is the equivalent of the integral expression of current striking the electrodes as described in the FRS document PIP-II Injector Test MEBT Kicker Protection Electrode Electronics, ED0001304 Rev A, dated 2/17/2017. This paper explains the derivation of the discrete time equivalent of the analytical expression as well as an approach to minimize computational FPGA resources allowing the algorithm to calculate fast enough to enable a protection system to respond in microseconds.
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