Development Build

An automated, and untested build of the latest code pushed to the repository. Requires Windows 10, or may work on Windows 7 with the Edge browser runtime installed.

v1.0.12

InterSpec v1.0.12 adds a number of new features, improvements, and bug fixes.

The largest new features are undo/redo support, new peak skew models, and a flexible spectrum file export tool.
See the full release notes for the many other new features and fixes.

Thank you for all the feature requests, bug reports, contributions, and questions that helped to make this release!

For Windows 10 and 11, the "WebView2" version is recommended because it uses less disk space, less ram, starts faster, and is more thoroughly tested. However, if you regularly open large spectrum files (≳1 MB) by dropping them onto the app, the "Electron" version may be preferable, as it opens these large files significantly faster.
For Apple, macOS 10.13 or newer is required, and you can also install it through the App Store instead of downloading it here.
The Linux version should work on Ubuntu 18.04, Fedora 32, and Debian 10, and newer, although only Ubuntu was tested.
Releases on the app stores for iOS and Android are eventually expected.

Some short usage videos are at: https://sandialabs.github.io/InterSpec/videos/index.html
Some various tutorials and trainings are at: https://sandialabs.github.io/InterSpec/tutorials/
Full release notes are at: https://sandialabs.github.io/InterSpec/releases/#interspec-v1012-release-notes-may-2024

Please email InterSpec@sandia.gov with any requests, bug reports, or questions.

v1.0.12 rc0

Release candidate for v1.0.12.

Includes a number of bug fixes, as well as new features, including:

• Undo/Redo support. Use either ctrl-z/ctrl-shift-z, or undo/redo from the Edit menu.
• Added a spectrum file export tool that allows more flexibly exporting spectrum files.
• Peak-skew support, with a handful of potential skew models. Right-click on a peak, and use the "Change Skew Type" sub-menu, or the "Peak Editor" to add fitting for skew to a peak.
• Ability to use .ECC files from ISOCS as detector response functions. Just drag and drop the .ECC file onto InterSpec to use.
• Ability to fit the functional FWHM equation from the current spectrum.
• A "FAQ" tab was added to the "Welcome" window, which answers many questions people have asked.
• Add reference photopeak lines for "Pu low burnup", "Pu high burnup", "Pu heat source", "U depleted", "U natural", "U 3% enriched", and "U 93.3% enriched"; to display these lines, type these names into the Nuclide field of the Reference Photopeak tab.
• Icons that can be clicked to create QR-codes and URIs has been added to various tools around the app; these QR-codes or URIs (of scheme 'interspec://') encode the state of the particular tool, so that the QR-code or URI can be used to get back to that same state.
• Not part of the release, but some short tutorial style videos are available at https://sandialabs.github.io/InterSpec/videos/index.html

No additional features are anticipated for the final v1.0.12 release, however, any bugs/issues found will be fixed, and small improvements to existing capabilities may be made.

v1.0.11

InterSpec version 1.0.11 adds a number of new features and capabilities, many improvements, and a good amount of bug fixes.

Most of the added features were user requested, as were many of the improvements and bug fixes - thank you for these!

Major features include:

• A number of improvements to the “Reference Photopeaks” tab, including a "more info" button that will give you more information about the nuclide, including relevant analyst notes for about 100 of the most common nuclides. Cascade sum peak lines, and displaying alpha/beta end-point energies have been added, as have showing recently displayed nuclides, and nuclides identified by the detectors on-board RID algorithm.
• The maps tool has been re-written and much improved.
• An “Isotopics by peaks” tool has been added, which uses Relative Efficiency analysis to help determine the activity ratio of nuclides or material enrichments, without requiring detector response, geometry, or shielding knowledge. More info here
• For the Windows version of InterSpec, a new “WebView2” build is available that uses the HTML renderer built into Windows (i.e., the Edge browser WebView); this allows reducing the InterSpec distribution size, memory consumption, and application startup time. The "Electron" version of the application will continue to be maintained/released.

Full release notes at: https://sandialabs.github.io/InterSpec/releases/#v1011-june-01-2023.

• For Windows 10 and 11 users, the "InterSpec-win32-x64_WebView2_v1.0.11_0.zip" build is recommended; may also work on Windows 7 (64-bit) if the Edge runtime is installed. If you do not have the Edge browser runtime installed (most Windows 10 and all Windows 11 users should), or you experience issues, the "InterSpec-win32-x64_Electron_v1.0.11_0.zip" build can be used.
• The macOS build requires 10.13 (High Sierra) or newer.
• The Linux build work on Ubuntu 14 and newer.
• For iOS, please use the App Store to install.
• Updated build for Android is not yet available.

Known issues at: https://sandialabs.github.io/InterSpec/releases/#known-issues-for-v1011

v1.0.11 rc6

Likely the final release candidate for v1.0.11.

• For Windows 10 and 11 users, the "InterSpec-win32-x64_WebView2_v1.0.11_rc6b" build is recommended; may also work on Windows 7 (64-bit) if the Edge runtime is installed.
• The macOS build requires 10.13 (High Sierra) or newer.
• The Linux build work on Ubuntu 14 and newer.

Windows 7, 32bit build

This is a one-off build for 32-bit Windows 7.

Has not been tested, beyond "it seems to be fine", and is not recommended for general use, except for with 32-bit Windows.

Roughly corresponds to v1.0.11 release candidate 4.

It is anticipated all future build of InterSpec for Windows will require 64-bit Windows ≥10, and further builds like this one will likely not be made.

macOS 10.11 (El Capitan) and 10.12 (Sierra) build

This is a one-off build for macOS 10.11 (El Capitan) and 10.12 (Sierra) only, roughly corresponding to InterSpec v1.0.11_rc3.

Has not been tested, beyond "it seems to run".

As noted in issue #21, the OS provided WebView in El Capitan and Sierra can not run the JavaScript necessary for InterSpec. So this build uses Electron to render the application.

However, this build has at least a few downsides:

• The application menus are located on the primary application screen, and not in the upper menu bar, as is customary for applications on macOS.
• Larger download size (120 MB), and uses more system memory.
• Does not contain the file preview for Finder, that the normal build has.
• Has not been tested, beyond "it seems to run"; there are likely a number of issues.

It is anticipated all future build of InterSpec for macOS will require macOS ≥10.13, and further builds like this one will likely not be made.

v1.0.11_preview-2

Only very minor updates from v1.0.11_preview-1:

• Fixed issue in exporting CNF files; since v1.0.8 invalid CNF files were being produced, due to a regression.
• Fixed issue in the Spectrum File Query Tool of showing a result in Windows Explorer

v1.0.11_preview-1

This is an early preview release of a new feature expected in version 1.0.11 for performing Relative Efficiency analysis.

There are two new tools, "Isotopics from peaks" and "Isotopics by nuclides". The former is fairly complete and appears to be working well for a number of tested use-cases, while the latter is still under active development and may not make it into the 1.0.11 release.
Documentation is not yet available for either tool.

For background on Relative Efficiency analysis, please see:

• Relative Efficiency Curves Demystified, available at https://www.osti.gov/servlets/purl/1399186
• Chapter 14 in FRMAC Gamma Spectroscopist Knowledge Guide, available at https://www.osti.gov/biblio/1763003
  Both documents by Mike Enghauser.

v1.0.10

This release fixes a number of smaller issues, improves some interfaces, makes using pre-defined detector response functions (DRFs) easier, adds a number of default DRFs for common portable detection systems, reduced app memory usage, and upgraded some underlying libraries.

Full release notes at: https://sandialabs.github.io/InterSpec/releases/#v1010-aug-07-2022