# InterSpec Radiation Analysis — γ and x-ray spectral analysis

> Nuclear radiation spectral analysis tool for nuclide identification and source characterization. (iPhone/iPad app by William Johnson.)

- Source: https://appshunter.io/ios/app/interspec-radiation-analysis/id1447080767 (this page in markdown: same URL + `.md`)
- Developer: [William Johnson](https://appshunter.io/developer/1447080766)
- Category: Utilities, Reference
- Price: Free
- Rating: 4.20/5 from 10 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 80 MB
- Languages: American English
- Released: 2019-04-25
- Data updated: 2026-08-08
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/interspec-radiation-analysis/id1447080767/reviews.md

## What is InterSpec Radiation Analysis?

InterSpec assists in analyzing spectral nuclear radiation data, using a peak-based methodology. Common uses include identifying nuclides present, determining source activity, shielding amounts, source age, or other nuclear reactions present. 
InterSpec also provides a number of other tools useful for analyzing radiation data including spectral file format converting, dose rate calculations, interactive nuclide decay and reference information, gamma cross section calculations and references, and more. 
InterSpec can open data files from most common spectral radiation detectors (e.g., most NaI, HPGe, LaBr, CLYC, CsI, etc. based systems) and assist in their analysis.

## Key features

- Spectral nuclear radiation data analysis
- Nuclide identification
- Source activity determination
- Shielding amount calculation
- Spectral file format conversion
- Dose rate calculations
- Interactive nuclide decay information

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/interspec-radiation-analysis/id1447080767/reviews.md

### 5/5 — Great way to process data

*2021-03-22*

By far the most intuitive and efficient way to process MCA data that I have found. The one feature I would love to see is the ability to print the spectra directly from the program without doing a screen shot. 

Thank you for creating this software.

## Frequently asked questions about InterSpec Radiation Analysis

### What is InterSpec used for?

InterSpec is used for analyzing spectral nuclear radiation data. It helps identify nuclides, determine source activity, calculate shielding amounts, and analyze other nuclear reactions.

### What types of radiation data can InterSpec analyze?

InterSpec can open data files from most common spectral radiation detectors, including systems based on NaI, HPGe, LaBr, CLYC, and CsI.

### Does InterSpec offer tools beyond spectral analysis?

Yes, InterSpec provides spectral file format conversion, dose rate calculations, interactive nuclide decay and reference information, and gamma cross section calculations.

### What is the rating of InterSpec?

InterSpec has a rating of 4.2 stars based on 10 ratings.

### Is InterSpec available on multiple devices?

InterSpec is supported on iPhone, iPad, and iPod devices.

### How often is InterSpec updated?

The latest version, v1.0.13, was last updated on October 5, 2024.

### What is the age rating for InterSpec?

InterSpec has an age rating of 4+, making it suitable for a wide range of users.

### Does InterSpec have ads?

No, InterSpec does not contain advertisements.

## Version history (last 5 releases)

### v1.0.13 — 2024-10-05

This version adds a portrait mode on phones that allows quick access to common tools, to help perform analysis faster.
There have been lots of bug fixes and smaller improvements.

### 1.0.12 — 2024-05-15

Better spectrum file export, and more complete support of QR-codes for spectrum files, and various tool states.

### 1.0.11 — 2023-06-27

A Relative Efficiency analysis tool, "Isotopics from peaks", has been added.
Ability to display radiation measurement locations on a map, and select measurements on the map to display as foreground/background, has been added.
The "Reference Photopeak" tab now has a "more info" button that can provide analyst notes on many common nuclides.  This tool also has a number of other improvements.
Detector response functions, for a number of common detection systems have been added by default.
The application now can generate and receive "interspec://" and "raddata://" URIs through QR codes, to help transfer spectrum files or application state, without network communications.
Lots of general bug fixes and improvements, as well as improved iOS specific behavior, like opening and exporting spectrum files.

### 1.0.7 — 2021-03-21

Fix crash when opening spectrum files from other apps like the Files app, or downloaded from web-browser or email.
Fix many other smaller bugs, and various smaller improvements.

### 1.0.3 — 2019-06-25

Added tool to make detector response.
Added reading a few new spectrum file formats.
Fixed a number of smaller bugs.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-08.*