Access to

**NIFS Database**Example of Numerical Atomic and Molecular Database

AMDIS (Atomic and Molecular Data Interactive System)

In this database AMDIS, theoretical and experimental (obtained with the beam techniques)cross sections for excitation and ionization processes of atoms, ions and some moleculesby electron impact are filed together with the references.SPUTY (Sputtering Yields of Solids by Ions)

Experimental sputtering yields for monoatomic solids by ions are filed, together with the reference. An empirical formula for calculating the sputtering yields is also included.CHART (Charge Transfer between Atoms and Ions)

Experimental cross section for chage transfer of ions in collisions with atomic and molecular hydrogen targets are filed together with the references.BACKS (Backscattering Coefficients of Ions)

Experimental and simulation data for the backscattering coefficients of light ions (H, D and He ions) from monoatomic solids are stored as a function of the incident energy.AMOL (AMDIS-molecule)

Cross sections and rate coefficients for electron - molecule collision processesCMOL (CHART-molecule)

Cross sections and rate coefficients for heavy particle - molecule collision processes

The data format and retrieval system were originally created by IAEA, and the following databases are developped at NIFS.

Access to

**ALADDIN database**Examples:

- LOTZ

Electron Impact Ionization Cross Sections of Atoms. - BELI

Electron Impact Ionization Cross Sections of Atoms. - BELR

Electron Impact Ionization Rate Coefficients of Atoms. - C

Electron Stripping Cross Sections of C by H. - HELIKE

Electron Impact Excitation Rate Coefficient of He-like Ions. - NLIKE

Electron Impact Excitation Rate Coefficient of N-like Ions. - BeBEXC

Electron Impact Excitation Rate Coefficient of B and Be. - CIIIEXC

Electron Impact Excitation Rate Coefficient of C[+2]. - COEXC

Electron Impact Excitation Rate Coefficient of C and O. - HE

Excitation Rate Coefficient of He by Collisions with H. - XABS

Photon Absorption Cross Sections of Atoms.

Ion fraction distributions as a function of electron temperature in ionization equiliblium.

Database for energy levels of autoionizing states and dielectronic satellite lines.

Mirror page of Electron Impact Excitation/Ionization Sub-Database of AMODS.

Numerical data on sputtering yield, reflection coefficients and mean range calculated by Dr. Wolfgang Eckstein using the Monte Carlo program code (TRIM.SP)

NIFS-DATA-73(2003)

"Rate Coefficients for Low-Energy Electron Dissociative Attachment to Moleculara Hydrogen"

J. Horacek, K. Houfek, M. Cizek, I. Murakami, T. Kato

Last update was made on 17-March-2004