Recover soft x-ray spectrum using virtual flat response channels with filtered x-ray diode array
- Reach Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900 (China)
A method for the recovery of soft x-ray spectra in indirect-drive inertial confinement fusion experiments is presented. Virtual detection channels with bandpass responses are obtained using linear combinations of the channel response functions of a filtered x-ray diode array and a weighted correction is introduced to improve the recovery. These virtual channels can be used to calculate radiation fluxes in some specific photon energy bands and hence to recover the spectrum of the whole photon energy range from 80 eV to 4.5 keV. Examples are listed which demonstrate the capability of this method to unfold various spectra such as Planck spectra with different radiation temperatures and to obtain x-ray flux of certain narrow energy interval.
- OSTI ID:
- 22093972
- Journal Information:
- Review of Scientific Instruments, Vol. 83, Issue 11; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
Similar Records
Soft x-ray spectrum unfold of K-edge filtered x-ray diode arrays using cubic splines
Use of a priori spectral information in the measurement of x-ray flux with filtered diode arrays