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Circuit description of the power systems for pulsed septum magnets at APS

Conference ·
DOI:https://doi.org/10.2172/95576· OSTI ID:5769906

This paper describes the design and simulation of power circuits for the 4 Advanced Photon Source (APS) pulsed septum magnets which will be transformer type or transformer coupled to their switching circuits. Three are for synchrotron injection, extraction and Storage Ring injection, operating at a 2 Hz pulse rate; one is for the Positron Accumulator Ring (PAR) operating at a 60 Hz pulse rate for both injection and extraction. The septum current pulse is approximately a half-sine-wave with a base width of approximately 1/3 ms and a peak current, repeatable within {plus minus} 0.05%, in the transformer primary between 3.5 kA and 4.7 kA. The septum magnets have a primary inductance between 16 {mu}H and 23 {mu}H. Circuit design considerations of the switching, logic and simulations are presented. 2 refs., 5 figs.

Research Organization:
Argonne National Lab., IL (USA)
Sponsoring Organization:
DOE; USDOE, Washington, DC (USA)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
5769906
Report Number(s):
ANL/CP-73045; CONF-910505--43; ON: DE91011995
Country of Publication:
United States
Language:
English