Abstract
The Spallation Neutron Source (SNS) at Oak Ridge National Laboratory uses fourteen pulsed modulators in the extraction system to deflect the proton beam from the accumulation ring to the target. Each individual pulse modulator is a pulse-forming network (PFN) located in a service building external to the ring tunnel. SNS is in the planning and development phase of a proton power upgrade (PPU) to increase the beam energy from 1.0 to 1.3 GeV, and the extraction system is required to provide the same deflection at the higher beam energy. Increasing the magnet current, by charging the PFN to a higher voltage, by 20% will provide the required deflection. The existing capacitor charging power supply is incapable of charging the PFN to higher voltages between the 60 Hz pulses; therefore, a new resonant charging scheme has been developed to charge to the PPU higher voltage within the available time. This paper describes the resonant charging power supply design and presents test results from a prototype operating on a full system test stand.
| Original language | English |
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| Title of host publication | 2019 IEEE Pulsed Power and Plasma Science, PPPS 2019 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Electronic) | 9781538679692 |
| DOIs | |
| State | Published - Jun 2019 |
| Event | 2019 IEEE Pulsed Power and Plasma Science, PPPS 2019 - Orlando, United States Duration: Jun 23 2019 → Jun 29 2019 |
Publication series
| Name | IEEE International Pulsed Power Conference |
|---|---|
| Volume | 2019-June |
| ISSN (Print) | 2158-4915 |
| ISSN (Electronic) | 2158-4923 |
Conference
| Conference | 2019 IEEE Pulsed Power and Plasma Science, PPPS 2019 |
|---|---|
| Country/Territory | United States |
| City | Orlando |
| Period | 06/23/19 → 06/29/19 |
Funding
* This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). x email: [email protected]