database.name

What exists, and how to get in.

NIST FLYCHK

Also known as Collisional-Radiative Code · NIST Standard Reference Database 160

FLYCHK provides a capability to generate atomic level populations and charge state distributions for low-Z to mid-Z elements under NLTE conditions.

Getting access

Registration required Restricted (registration)

How to apply
Not yet verified — we don’t publish a route we haven’t checked.

Summarised from a registry — the exact application route is not yet verified.

About this database

Websitehttps://nlte.nist.gov/FLY/
SubjectsNatural Sciences · Chemistry · Physics · Physical and Theoretical Chemistry · Optics, Quantum Optics and Physics of Atoms, Molecules and Plasmas · Physical Chemistry of Molecules, Interfaces and Liquids - Spectroscopy, Kinetics · Optics, Quantum Optics, Atoms, Molecules, Plasmas
Last updated2026-09-11

← Back to the index