Four fields. Three tools published.

Radiation science, computed in the browser.

Every tool names the standard or model it implements, runs with nothing to install, and gives you a record you can keep.

An inked drawing looking down onto a drafting table. An open laptop sits in the middle, its screen showing the tool at work: a narrow icon rail down the left, then three stacked test panels, each with a clause chip, a verdict badge and a ruled table of measured figures, one row marked by an amber reference bar, and a small plot of measurement points in the first panel. Pushed aside around the laptop are three paper studies — a section of rock strata with a canister lowered down a borehole, a source whose rays thin through a stack of four shielding slabs, and a set of nested dispersion contours over a landform — with a steel rule and a pencil across them.

Published tools

A slide rule and drafting compass on a worksheet of attenuation curves, with a lead brick and a survey meter.

01Dose assessment and shielding

RadCalc

The hand calculations this field repeats — point-source dose rate with attenuation and buildup, beta range and bremsstrahlung, detection limits, decay, specific activity and stay time. Constants are computed from IAEA and NIST open data rather than copied from a table, so every assumption behind a number stays visible.

Open RadCalc

An inked illustration of a survey meter with an analogue dial, wired to a detector probe in a stand, in front of a board showing a response curve crossed by an amber reference line.

02Instrument metrology

RadiMeter

Characteristic evaluation of radiation detection instruments against IEC standards — energy and angular response, linearity, statistical fluctuation, response time and alarm accuracy.

Open RadiMeter

An inked illustration of a glass column of layered rock core beside a cutaway block of ground, in which a waste canister sits deep in the strata with a plume spreading from it.

03Waste disposal and transport

M-Phreefiteq

Migration of radionuclides through the geosphere after deep geological disposal. Thermodynamic speciation and surface-complexation modelling coupled to transport, so that sorption and solubility are derived rather than assumed.

The interface is in Korean for now. Open M-Phreefiteq

A fourth field — environmental radioactivity and dispersion — is in development. This page names a tool only once it exists.

How the tools are built

Stated basis

Every calculation names the standard, clause or model it implements. The clause is cited, never reproduced.

Nothing to install

No desktop install, no input deck. The input is a form and the result is immediate.

A record you keep

Export to a spreadsheet or print a report. Your data stays in your browser unless you send it.

Scope and limitations

Radiation Lab is not an accredited calibration or testing laboratory, and the tools published here do not replace accredited calibration, testing, or a licensed safety assessment. A result is only as good as the data and assumptions entered into it, and remains the responsibility of the person who records it. Each tool states this in full.

Each lab publishes its own documents, and those documents govern that lab. RadiMeter — disclaimer, privacy, terms. M-Phreefiteq — disclaimer, privacy, terms (Korean). One account works across the platform, and each lab's privacy policy states what it stores.

Questions, corrections and collaboration: contact@radiation-lab.com