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

fYear

1997

fDate

22-23 Jul 1997

Firstpage

48

Lastpage

52

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;

fLanguage

English

Publisher

ieee

Conference_Titel

High Energy Radiation Background in Space, 1997 Conference on the

Conference_Location

Snowmass, CO

Print_ISBN

0-7803-4335-2

Type

conf

DOI

10.1109/CHERBS.1997.660246

Filename

660246