Nuclides

Jianfeng Song

In-app purchases

About this app

Nuclides is a professional reference and calculation tool designed for specialists working in radiation-related industries, nuclear technology applications, radiological medicine, and radiation monitoring.

The app provides a comprehensive collection of nuclear and radiological data, combined with practical calculation tools, to support daily professional work, education, and research tasks.

Key features include:
• Element information
Query detailed properties of chemical elements, including relative atomic mass, physical state, natural sources, density, melting point, boiling point, and isotopic composition.

• Radioactive nuclide data
Access authoritative information on radioactive nuclides, including half-life, parent and daughter nuclides, radiation types, energies, and emission probabilities.

• Radiation safety reference
View toxicity classifications of radioactive nuclides and check activity limits used for radiation source categorization.

• Decay and activity calculations
Perform radioactive decay calculations by manually entering time values or selecting start and end dates.

• Radiation field estimation
Estimate air kerma rates at different distances from radiation sources, with optional lead shielding thickness settings.

• Nuclear facilities information
Browse information on nuclear power plants worldwide, including reactor types, operational status, and commercial operation dates.

• Advanced reactor overview
Access information about advanced nuclear reactors at the design, licensing, and operational stages.

• International Nuclear and Radiological Event Scale (INES)
Consult the INES for the classification of nuclear and radiological events.

• Physical reference tools
Retrieve densities of common materials, commonly used physical constants, and perform unit conversions for activity, dose (rate), pressure, length, area, flow, and other frequently used quantities, supporting both SI and Imperial units.

Nuclides is designed to serve as a reliable technical reference and calculation companion for professionals and students in nuclear science, radiation protection, and related disciplines.

Optional in-app purchases are available to unlock advanced features.

What’s new

1.Added a new minimalist icon style on the Home page, enabled by default (you can switch back to the classic icon style in Settings).
2.Added support for multiple new languages, including Spanish, French, German, Italian, Portuguese (including Brazil), Russian, Arabic, Hindi, Indonesian, Thai, Vietnamese, Turkish, Dutch, Polish, Swedish, Danish, Norwegian, Finnish, Czech, Ukrainian, Hebrew, Malay, Catalan, Croatian, Romanian, Slovak, Greek, and Hungarian.