Flat-response x-ray-diode-detector development
In this report we discuss the design of an improved sub-nanosecond flat response x-ray diode detector needed for ICF diagnostics. This device consists of a high Z cathode and a complex filter tailored to flatten the response so that the total x-ray energy below 1.5 keV can be measured using a single detector. Three major problems have become evident as a result of our work with the original LLNL design including deviation from flatness due to a peak in the response below 200 eV, saturation at relatively low x-ray fluences, and long term gold cathode instability. We are investigating grazing incidence reflection to reduce the response below 200 eV, new high Z cathode materials for long term stability, and a new complex filter for improved flatness. Better saturation performance will require a modified XRD detector under development with reduced anode to cathode spacing and increased anode bias voltage.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6934585
- Report Number(s):
- UCRL-87946; CONF-821128-1; ON: DE83001651
- Country of Publication:
- United States
- Language:
- English
Similar Records
A novel flat-response x-ray detector in the photon energy range of 0.1-4 keV
Note: Continuing improvements on the novel flat-response x-ray detector
Related Subjects
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
700208 -- Fusion Power Plant Technology-- Inertial Confinement Technology
CATHODES
DESIGN
DETECTION
ELECTRODES
LASER-PRODUCED PLASMA
MEASURING INSTRUMENTS
PLASMA
PLASMA DIAGNOSTICS
RADIATION DETECTION
RADIATION DETECTORS
SPECTRA
X-RAY DETECTION
X-RAY SPECTRA