Title :
Spectral analysis in high radiation space backgrounds with robust fitting
Author :
Lasche, P. ; Coldwell, R.L. ; Nobel, J.A. ; Rester, A.C. ; Trombka, J.I.
Author_Institution :
Constellation Technol. Corp., Largo, FL, USA
Abstract :
An advanced derivative of ROBFIT spectral analysis software is tested for its ability to fit spectra from space. The approach, which emphasizes the background shape function, is uniquely suited to the identification of weak-strength nuclides in high-radiation environments, and for analyses in which a suitable off-source background spectrum may not be available. Compared to earlier analysis using on-source/off-source subtraction, all data from SN 1987A were combined and reanalyzed with significant improvement in results
Keywords :
Large Magellanic Cloud; astronomical techniques; gamma-ray sources (astronomical); spectral analysis; stellar spectra; supernovae; Large Magellanic Cloud; ROBFIT spectral analysis software; background shape function; high radiation space backgrounds; high-radiation environments; robust fitting; spectral analysis; weak-strength nuclides; Attenuation; Calibration; Measurement uncertainty; Robustness; Shape; Software testing; Space technology; Spectral analysis; Spline; Statistical analysis;
Conference_Titel :
High Energy Radiation Background in Space, 1997 Conference on the
Conference_Location :
Snowmass, CO
Print_ISBN :
0-7803-4335-2
DOI :
10.1109/CHERBS.1997.660246
