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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Douglass, J.D. Hammer, D.A. Pikuza, S.A. Shelkovenkoa, T.A. McBride, R.D. |
| Copyright Year | 2006 |
| Description | Author affiliation: Lab. of Plasma Studies, Cornell Univ., Ithaca, NY (Douglass, J.D.; Hammer, D.A.; Pikuza, S.A.; Shelkovenkoa, T.A.; McBride, R.D.) |
| Abstract | Summary form only given. The COBRA accelerator is a pulsed power generator capable of producing up to 1 MA current pulses. The machine is driven by two 60 kJ Marx generators that feed four parallel pulse-forming lines that are merged into a single wire-array Z-pinch load. A typical pulse rise time is 100 ns and the pulse width is about 200 ns. Time-gated X-ray imaging is an important diagnostic for the study of imploding dense Z-pinches. These rapidly changing plasmas must be studied on the nanosecond time scale, and they generally radiate strongly in the soft X-ray range. As such, they require short, intense X-ray sources to illuminate them. Monochromatic X-ray imaging using an X pinch X-ray source is a way that has been used successfully in the past. On COBRA, X-pinches in return current rods in the Z-pinch load region are used as the time-gated X-ray source. Monochromatic imaging is provided by reflecting X pinch radiation off of a spherically bent mica crystal. Experiments have been performed to investigate X-ray source parameters including source size and X-ray spectrum for various materials and configurations. These results will be the main focus of this presentation |
| Sponsorship | Plasma Sci. and Applications Comm. IEEE Nuclear and Plasma Sci. Soc |
| Starting Page | 447 |
| Ending Page | 447 |
| File Size | 142167 |
| Page Count | 1 |
| File Format | |
| ISBN | 1424401259 |
| DOI | 10.1109/PLASMA.2006.1707320 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-06-04 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | X-ray imaging Acceleration Pulse generation Space vector pulse width modulation Power generation Feeds Plasma density Plasma diagnostics Plasma sources Plasma x-ray sources |
| Content Type | Text |
| Resource Type | Article |
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