Interposed pulsed power system for fast separation of radioactive beams

Journal Article · 04 August 2021 · Journal of Instrumentation

DOI: https://doi.org/10.1088/1748-0221/16/08/p08017 · OSTI ID:1825054

Hartzell, J. J. ^[1]; Kutsaev, S. V. ^[2]; Leyh, G. ^[3]; Villabona, T. ^[2]

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1. RadiaBeam Technologies, LLC, Santa Monica, CA (United States); RadiaBeam
2. RadiaBeam Technologies, LLC, Santa Monica, CA (United States)
3. Lightning on Demand, Brisbane, CA (United States)

This paper presents the novel design of an interposed pulsed power system, developed to drive a fast-switching magnet with a large multi-mH load inductance, and high field amplitude (> 1 T). This modulator can produce variable flat-top pulses from 1 to 30 ms with rise and fall times of less than 0.5 ms at a variable duty cycle of 3–91% into a heavily inductive load. The system employs a novel over-voltage topology to overcome the inherent inductance and achieve the fast rise and fall times, switching to a precision DC supply to efficiently maintain the flattop without requiring many-kV voltage. We present a power source design consideration, including the results of computer modeling as well as the first experimental results of a modulator scaled test model will also be presented.

• Research Organization: RadiaBeam Technologies, LLC, Santa Monica, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• Grant/Contract Number: SC0015124
• OSTI ID: 1825054
• Journal Information: Journal of Instrumentation, Journal Name: Journal of Instrumentation Journal Issue: 08 Vol. 16; ISSN 1748-0221
• Publisher: Institute of Physics (IOP)Copyright Statement
• Country of Publication: United States
• Language: English