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Module 02 · Radiation safety

RadAegis

Calculate • Shield • Protect

Professional radiation safety calculations and dose tracking. ALARA planning, shielding calculations, decay corrections, and comprehensive radiological reference materials for health physics professionals.

Download RadAegis on the App Store Bench test
RadAegis app icon
Tc-99m half-life
6.01
H
Bench test · live

Decay a source.

All 27 isotopes in the RadAegis library, with the exact half-lives the app ships with.

Specification

What it does

F-01

Dose Rate Calculations

Calculate dose rates from point sources, line sources, and area sources with inverse square law and shielding factors.

F-02

Shielding Design

Multi-material shielding calculations for lead, concrete, steel, and other common shielding materials with HVL/TVL data.

F-03

Decay & Activity

Radionuclide decay calculations with comprehensive isotope database. Activity corrections and daughter product tracking.

F-04

ALARA Planning

As Low As Reasonably Achievable planning tools for time, distance, and shielding optimization.

F-05

Exposure Tracking

Personal dose tracking and regulatory limit comparison for occupational and public exposure categories.

F-06

Regulatory References

Comprehensive library of NRC, DOE, and international regulatory limits and reference materials.

Operators

Who Uses RadAegis

Built by a retired Navy industrial hygienist for the people doing the work

Radiation Safety Officers

RSOs managing licensed material who need dose rate, shielding, and decay math plus survey logs and incident records in one place instead of a spreadsheet stack.

Health Physicists

Practitioners running ALARA job planning with collective dose projection, stay-time calculations, and attenuation through layered materials.

Medical Physics & Nuclear Medicine

CT dose calculation with CTDI and DLP, a radiopharmaceutical database, effective dose across 15 modalities, and fluoroscopy skin dose tracking for interventional work.

Industrial Radiography

Field teams calculating nominal hazard zones, boundary distances, and time-to-dose before a shot.

Laser & RF Safety Officers

The NIR module covers laser MPE under MIL-STD-1425B and ANSI Z136, plus RF and microwave exposure evaluation with hazard zone estimation.

Regulatory & Compliance Staff

ACR and AAPM checklists, NRC 10 CFR Part 20 limit comparison, and PDF/CSV export for the compliance file.

Display captures

On the glass

RadAegis home screen tracking annual dose in mSv with favorite tools for laser, UV, RF/microwave, isotope library, and dose records
FIG. 1
RadAegis tool catalog with radiation references for dose limits, dose rate, emergency response, isotope library, plus ALARA planning and medical physics calculators
FIG. 2
RadAegis Medical Physics module with CT dose calculator, radiopharmaceutical database, effective dose calculator, and regulatory compliance checklists
FIG. 3
Operator’s notes

Common questions

N-01Can RadAegis be my official dose of record?

No. Personal dose tracking in RadAegis supports your workflow — trending, planning, and sanity-checking — but it is not a dose of record. Your licensed dosimetry provider remains the authoritative source. The app accepts 12 reference source types including badge reports, EPDs, and dosimetry service results so you can keep your working picture current.

N-02How many isotopes are in the library?

27+ verified medical, industrial, research, and naturally occurring isotopes, each with half-life, decay mode, energy, specific activity, and shielding guidance. You can search by symbol, name, category, or common use.

N-03What calculators are included?

17+, covering dose rate (inverse square, shielding, stay time, time-to-dose), decay and activity after elapsed time, HVL/TVL attenuation through multiple materials, DAC/ALI and contamination assessment, and a scientific calculator carrying radiation-specific constants.

N-04Does it handle non-ionizing hazards too?

Yes. The NIR module does laser MPE calculations against MIL-STD-1425B and ANSI Z136, RF and microwave exposure evaluation, hazard classification, and nominal hazard zone calculation — so laser and RF safety officers aren't stuck in a separate tool.

N-05Who built it?

A retired US Navy Industrial Hygiene Officer — a Certified Industrial Hygienist and Certified Safety Professional with 25+ years across military, government, and civilian sectors. The workflows reflect how the work is actually done, not a developer's reading of a regulation.

N-06Does it work offline?

Yes. The isotope library, calculators, and regulatory references are bundled. Survey logs, inspection records, and incident reports are created on-device and sync via iCloud when you're back in range.

Ready when you are

Put RadAegis in your kit.

Free to download on iPhone and iPad. Veteran and military pricing is available in-app.

Download RadAegis on the App Store