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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Ormond, E.C. Nelson, D.S. Cordova, S.R. Molina, I. Smith, J.R. Corrow, G.D. Hansen, M.D. Henderson, D.J. Mitton, C.V. |
| Copyright Year | 2007 |
| Description | Author affiliation: Sandia Nat. Lab., Albuquerque (Ormond, E.C.; Nelson, D.S.; Cordova, S.R.; Molina, I.) |
| Abstract | Summary form only given. The Cygnus Dual Beam Radiographic Facility consists of two 2.25-MV, 60-kA, 50-ns X-ray sources fielded in an underground laboratory at the Nevada Test Site. The tests performed in this laboratory invoke study of the dynamic properties of plutonium and are called subcritical experiments, from end-to-end. the Cygnus machines utilize the following components: Marx generator, water-filled pulse-forming line (PFL), water-filled coaxial transmission line, 3-cell inductive voltage adder (IVA), and rod-pinch diode. The upstream coaxial transmission line interface to the PFL is via a radial insulator with coaxial geometry. The downstream coaxial transmission line terminates in a manifold where the center conductor splits into three lines which individually connect to each of the IVA cell inputs. There is an impedance mismatch at this juncture. It is a concern that a reflected pulse due to anomalous behavior in the IVA or diode might initiate breakdown upon arrival at the upstream PFL/coax insulator. Therefore near the beginning of the coaxial transmission line a radial diverter switch is installed to protect the insulator from over voltage and breakdown. The diverter has adjustable gap spacing, and an in-line aqueous-solution (sodium thiosulfate) resistor array for energy dissipation. There are capacitive voltage probes at both ends of the coaxial transmission line and on the diverter switch. These voltage signals will be analyzed to determine diverter performance. Using this analysis the usefulness of the diverter switch is evaluated. |
| Starting Page | 193 |
| Ending Page | 193 |
| File Size | 47213 |
| Page Count | 1 |
| File Format | |
| ISBN | 9781424409150 |
| ISSN | 07309244 |
| DOI | 10.1109/PPPS.2007.4345499 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-06-17 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Switches Coaxial components Transmission lines Voltage Insulation Laboratories Testing Diodes Radiography Performance evaluation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering |
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