Uncertainty Analysis Technique for OMEGA Dante Measurements
The Dante is an 18 channel X-ray filtered diode array which records the spectrally and temporally resolved radiation flux from various targets (e.g. hohlraums, etc.) at X-ray energies between 50 eV to 10 keV. It is a main diagnostics installed on the OMEGA laser facility at the Laboratory for Laser Energetics, University of Rochester. The absolute flux is determined from the photometric calibration of the X-ray diodes, filters and mirrors and an unfold algorithm. Understanding the errors on this absolute measurement is critical for understanding hohlraum energetic physics. We present a new method for quantifying the uncertainties on the determined flux using a Monte-Carlo parameter variation technique. This technique combines the uncertainties in both the unfold algorithm and the error from the absolute calibration of each channel into a one sigma Gaussian error function. One thousand test voltage sets are created using these error functions and processed by the unfold algorithm to produce individual spectra and fluxes. Statistical methods are applied to the resultant set of fluxes to estimate error bars on the measurements.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 1009652
- Report Number(s):
- LLNL-CONF-431856; TRN: US1101766
- Resource Relation:
- Journal Volume: 81; Journal Issue: 10; Conference: Presented at: 18th Topical Conference on Plasma Diagnostics, Wildwood, NJ, United States, May 16 - May 20, 2010
- Country of Publication:
- United States
- Language:
- English
Similar Records
Source geometric considerations for OMEGA Dante measurements
Source geometric considerations for OMEGA Dante measurements