Spatially and temporally resolved crystal spectrometer for diagnosing high-temperature pinch plasmas on {ital Z}
- Sandia National Laboratories, Albuquerque, New Mexico 87185-1193 (United States)
We have developed a spatially and temporally resolved crystal spectrometer for analyzing a variety of pinch experiments on {ital Z}. The spectrometer uses a convex curved crystal to disperse spectra onto a flat microchannel plate (MCP) framing camera detector. A single wide, 1 cm, strip on the MCP is gated to provide temporal resolution. The spectral range governed by the 4 cm length of the MCP strip varies with the central Bragg angle and crystal. For a KAP crystal a typical range is 1500{endash}2000 eV. This range can be shifted by translating the crystal along the optical axis to access different Bragg angles. The spectrometer can therefore measure {ital K} shell spectra of a wide variety of elements such as Al, Ti, and Fe. The short 1 cm width of the strip is spatially resolved with an imaging cross slit. With a 500 {mu}m cross slit and magnification 1 the spatial resolution at the pinch is 1 mm. The instrument may also be fielded with seven time frames using a seven strip-line microchannel plate as the detector by sacrificing the spatial resolution. We will present data obtained from an aluminum pinch on {ital Z}. {copyright} {ital 1999 American Institute of Physics.}
- OSTI ID:
- 295612
- Report Number(s):
- CONF-980605--
- Journal Information:
- Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 1 Vol. 70; ISSN 0034-6748; ISSN RSINAK
- Country of Publication:
- United States
- Language:
- English
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