# RT Calculator: Gamma NDT

> Radiography Exposure Tools

Canonical page: [https://chrome-stats.com/d/id6776261575](https://chrome-stats.com/d/id6776261575)

## Overview

- **ID:** `id6776261575`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** 雪 蔺
- **Category:** Business
- **Version:** 1.1
- **Last updated:** 2026-06-19
- **First published:** 2026-06-05
- **Size:** 3.15 MB
- **Data as of:** 2026-09-26
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/rt-calculator-gamma-ndt/id6776261575)
- **Website:** [https://jllyzzd.github.io/apps/gamma/support.html](https://jllyzzd.github.io/apps/gamma/support.html)
- **Privacy policy:** [https://jllyzzd.github.io/apps/gamma/privacy.html](https://jllyzzd.github.io/apps/gamma/privacy.html)

## Description

Offline gamma exposure, decay, barricade, and unsharpness tools for industrial radiography field work.

RT Calculator is an offline field calculator for industrial radiography teams working with Ir-192, Se-75, and Co-60. Estimate gamma exposure time, activity decay, barricade distance, geometric unsharpness, and exposure corrections with saved presets and calculation history.

Designed for RT inspectors, NDT technicians, and field engineers, the app keeps common calculations local on your device and helps reuse frequent parameters.

Calculations are for professional reference only. Always verify results against approved procedures, source certificates, exposure charts, local regulations, and radiation safety requirements before field use.

## Rankings

- #2,035,911 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6776261575)