A pulsed-laser x-ray source for x-ray diagnostic calibration
- Sandia National Labs., Albuquerque, NM (United States)
The authors are now performing imploding annular wire-array experiments on the PBFA-Z accelerator. The experimental diagnostics include X-ray Diode detectors (XRDs), photoconducting diode detectors (PCDs), and x-ray pinhole cameras both time-integrating and time-dependent. They have set up a pulsed-laser x-ray source for calibration of these diagnostics. A pulsed 10-joule Nd:YAG laser is shot onto a low-Z target, and a combination of filters then provides a large-area, monoenergetic source with a one-nanosecond pulse width. Measurements of the diagnostic`s sensitivity between 160 eV and 3 keV can be determined with this source with the appropriate combination of target and filter. The reference standard is a 1024x1024 pixel x-ray CCD that measures the source intensity and is calibrated at 100 eV to 2,500 eV. The utility of this calibration facility is the ability to monitor diagnostic sensitivities in a time fashion as these detectors are exposed to the harsh Z-pinch environment in PBFA-Z. For this paper, the authors show the calibration facility setup and sample calibrations of PCDs and XRDs. They also present data on a PCD detector sensitivity vs. bias voltage study.
- Research Organization:
- Sandia National Laboratory
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 338487
- Report Number(s):
- CONF-970559--
- Country of Publication:
- United States
- Language:
- English
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