Provides direct WWW access to databases, documents, programs and files. Maintained by the IAEA's Nuclear Data Centre.

The Controlled Fusion Atomic Data Center.

From: Plasma Laboratory of Weizmann Institute of Science, Israel

Program to calculate X-ray absorption coefficients, also edge energies, fluorescence yield; MUCAL on the Web Mucal on the web.

Provides atomic data (statistical weights, transition probablilities, and oscillator strengths) for elements Hydrogen (including Deuterium) up to Ge (atomic number 32), plus Tables of UV lines sorted by wavelength.

Atomic x-ray scattering factor files, x-ray properties of the elements, a calculator for synchrotron bent magnet radiation and more; published by the Center for X-Ray Optics at LBNL.

NIST Physical Reference Data, US.

A compilation of approximately 890,000 allowed, intercombination and forbidden atomic transitions with wavelengths in the range from 0.5 Å to 1000 µm.