Release Notes

Version 2.2  (9 March 2026)

• Parallelized most processes. User can now select the number of CPU's to use on the Main Window (up to a maximum of one less than the number of CPU's present). Associated modifications to worker methods to ensure thread safety.

• Added support for projection files when creating shape files (Anomaly Detection).

• Improved handling of low-count spectra channels during NASVD processing.

• Various efficiency improvements - array copying, line selection, image rendering.

Version 2.1  (3 February 2026)

• Fixed problem with install path preventing program from launching.

Version 2.0  (26 January 2026)

• Major update. Almost all tools have been optimized for speed. Flight path plotting now much accelerated, with less use of memory. Rendering of images optimized. Code parallelized where possible.

Version 1.3.4  (5 November 2025)

• Reintroduced an "invariant" decimal culture. Irrespective of a computer's Language and Region settings, GammaSpec will now always require (and use) a period (.) to separate the integer and fractional parts of real numbers. The use of a comma (,) is not allowed.

• Fixed a bug related to the plotting of null values for the Digital Elevation Model in the Topographic Correction and 3D Inversion tools.

• Fixed a number of inconsistencies with the View User Log File menu for some tools.

Version 1.3.3  (1 June 2025)

• Fixed a bug relating to SystemID by disabling SystemID  functionality.

• Limited the spectral-ratio method models to 2 or 4-component only.

• Removed decimal "culture" functionality to fix several bugs.

Version 1.3.2  (12 March 2025)

• Fixed formatting issues with the Portable Pad Calibration tool.

• Fixed a bug in the Portable Pad Calibration tool relating to spectra livetimes

• Fixed a bug relating to the way other "cultures" read info from the config file (use of commas to separate integer and fractional parts of real numbers).

Version 1.3.0  (4 February 2025)

• Removed restrictions on NASVD By Cluster, Topographic Corrections, and some types of radio-element anomaly detection. 

• Removed Hydrocarbons as an anomaly type.

• All GammaSpec functionality now available in the Free Version.

Version 1.2.5  (11 December 2024)

• Added a utility to the Potable menu to facilitate summing multichannel spectra down to 256 channels. Input and output is via ASCII text files.

• Fixed a bug relating to files not being closed properly.

• Fixed a few minor formatting issues.

Version 1.2.4  (8 October 2024)

• Updated the Topographic Correction tool to handle large surveys and DEM's.

• Fixed a bug in Create Clusters that crashed the program when there was a mismatch between the vector and amplitude NASVD files.

• Increased the lower channel limit for Compton removal.

• Fixed a bug in Sum256Channels - tool aborting when number of channels not 256.

• Updated several tools that were not checking the integrity of the base and gain fields prior to running.

Version 1.2.3  (12 July 2024)

• Fixed a fatal error on opening Geosoft databases on some systems  due to missing dll's.

• Fixed an bug with GammaSpec crashing when upward-looking detector spectra not present in database.

• Updated the "Aircraft and Cosmic" and "Radon Stripping (Over Water)" Geosoft databases in the demonstration data to include upward-looking spectra.

• Tightened checks on cosmic and aircraft spectra being read from text file.

Version 1.2.2  (8 July 2024)

• Calibration of portable spectrometers and detection of cesium anomalies now included in the Free Version.

• Added a new tool (Utilities|Save Nasvd-Smoothed Spectra) to save NASVD-smoothed spectra to a new database field.

• Added a new tool (Utilities|Window Spectra) to sample custom windows and save the window data to a new database field.

• The chart Tool Tips (the information displayed when you hover the mouse over a data point) now includes the channel energy (if spectra have been energy calibrated).

• Updated the pseudo-color imaging of grid data to incorporate a hill shade.

• Fixed various bugs in some of the tools related to entering alias/parameter values directly into textBoxes using the keyboard.

• Fixed minor formatting issues in some of the tool log files.

• Updated GammaSpec Help to reflect the addition of the new tools.