Gamma-W software performs high-precision analysis of gamma-ray spectra from HPGe detectors, and is ideally combined with the PX5-HPGe and your high-purity germanium detector.  It is noted for its accurate and reproducible analysis of small peaks even in the presence of high backgrounds.  Gamma-W contains all of the options and algorithms legally required by many jurisdictions for quantitative analysis of HPGe gamma-ray spectra, including detection limit, radioactive decay control, uncertainties, documentation, etc…, and allows users to run samples from within the DPPMCA software.


  • Fully automatic spectrum analysis
  • Operator-controlled high-precision gamma-ray spectrum analysis
  • Quantitative evaluation of high-resolution spectra taken with HPGe detectors
  • Batch file operation without user intervention; internal batch file editing
  • Extensive master library contains all nuclides with half-life greater than 10 seconds; library easily edited by users
  • Comprehensive calibration functions (Energy, FWHM, Efficiency, Self-absorption) operated from single window
  • 15 units for activity (e.g. Bq, Bq/kg, Bq/l, Bq/m^3, etc)
  • Available in English, French, and German
  • Lifetime free software updates from the developer


  • Neutron activation analysis
  • Radioactive waste quantification and management
  • Reprocessing plant control measurements
  • Measurements for calibration purposes
  • Low-level environmental measurements
  • Food measurements
  • Prompt gamma-ray spectrometry
  • Research in heavy-ion induced reactions, spallation product assays, etc…
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  • Automated or user-controlled analysis of full spectrum, sum of fitted peaks, baseline and residuals
  • High-resolution graphical display of fitted peaks, sum of fitted peaks, and baseline
  • Automatic peak and shoulder search at selectable sensitivity levels; automatic shoulder peak detection
  • Automatic regioning of the spectrum
  • Physical baseline calculated from experimental data or bremsstrahlung background
  • Intrinsic HPGe efficiency function or polynomial approximation (degree <=9)
  • Decay-corrected activity calculation (decay before and during measurement)
  • Integrated neutron activation analysis (NAA) package for absolute calculations (nuclear data and library included)
  • Experimental self-absorption correction


Gamma-W Energy Calibration Functions
Gamma-W Energy Calibration Functions

When an energy calibration for a spectrum exists, it is uploaded along with the spectrum. A least-squares-fit calibration with up to 20 data points taken directly from the spectrum graphics is very straightforward (point-and-click) alternative for calibration. The data points and the parameters of the fitted polynomial can be stored in a calibration data file and the details of the fitting process are stored in a results file.


  • Manual describing all commands
  • Short manual for fast start-up
  • PDF manual files on CD or stick
  • Support available via phone, email, fax, and Skype

Specifications subject to change without notice.