SODIGAM

SODIGAM is a software for the high-precision analysis of gamma-ray spectra from scintillation detectors such as NaI(Tl), BGO, CsI, LaBr3 (BrilLanCe) or of X-ray spectra from Proportional Counters. The 32-bit Windows(tm) program is available in English, German and French; languages are on-line switchable. SODIGAM provides an unlimited cost-free update service. SODIGAM provides various analysis options for different applications:

• Fully automatic spectrum analysis (educational mode)
• User controlled analysis of peaks (hand analysis mode)
• Batch file operation without user intervention (automatic routine analysis mode)
• Procedure mode analysis for selectable standard analysis procedures (lab production mode)

SODIGAM contains all options needed for quantitative spectrum analysis and nuclide assignment:

• Selectable sensitivity in units of detection limits
• FWHM function definition from measured peaks
• Intrinsic FWHM function for NaI(Tl) spectra
• Intrinsic FWHM function for LaBr3 spectra
• Nonlinear energy calibration function
• Efficiency via intrinsic function or polynomials (one to nine coefficients)
• Consideration of external background interferences with uncertainties
• Extensive master library with all nuclides having T1/2 over 10 seconds
• Application libraries generated through excerpting
• Library data can be edited (no warranty)
• Decay correction and interference correction
• Multiplet deconvolution with up to 28 components
• Physical peak-shape description
• Physical shape of baseline under peaks
• Fuzzy-logic applied for various tasks
• Very stable LSQ-fit without matrix inversion

SODIGAM provides many I/O options:

• Six levels of increasing printout length
• Storage of all results in a protocol file, ready for editing to needs
• Reads spectra from essentially all commercial MCAs
• Writes spectra as ASCII files
• Very detailed display of baseline, fitted functions and sum-function
• Graphic images can be stored as Windows Meta File (spectrum and fits)
• 15 units for activity (e.g. Bq, Bq/kg, Bq/l, Bq/m3, ....)
• Calculus window for calibration functions
• Statistical calculations with uncertainties (Weighted mean, +, -, * and /)
• Freely selectable colour scheme of graphics window
• Five user levels with password protection (for industrial and routine analysis applications)
• HARDLOCK software protection unit

SODIGAM comes with extensive documentation.