Gas Phase Core Excitation Database

What is this database ?

This data base contains over 500 gas phase core excitation spectra of more than 250 pure compounds recorded by dipole regime electron energy loss spectroscopy at McMaster University from 1984 to the present
The spectra are calibrated to well characterized secondary standards and the energy scales are generally accurate to 0.1 ev or better.
Each file contains at least two versions of the spectra:
(1) the energy loss spectrum including pre-edge background on an accumulated count scale
(2) the same spectrum converted to an oscillator strength per atom scale.
In some cases a third version is included, whenever the signal of a known contaminant - typically nitrogen or oxygen - has been subtracted.

Typical uses include help in identifying unknown species, and reference spectra for fitting spectra of mixtures, as encountered in X-ray or EELS spectromicroscopy.

The spectra are accessed by ftp download of the individual text files. Select the species of interest to you by browsing one of the following two indices.

Click to view the index in order of compound name

Click to view the index in order of compound alpha formula


The database was first assembled in 1994 by Adam Hitchcock and made available by Derrick Mancini at the Uppsala University X-ray web site in conjunction with a publication of an associated bibliography of gas phase core excitation spectra - A.P. Hitchcock and D.C. Mancini, J. Electron Spectroscopy and Related Phenomena 67 (1994) 1-123
The database was updated in 1998 by Laura Ennis.
The database was updated in 2002 by David Tulumello and Jasmyn Gill

The latest version of the gas phase core excitation bibliography was produced in 1998.


If you use any data from this database, please give appropriate credit to the source, both the database, and the publicaiton in the original literature, for which a reference is provided in the index and in the file header.
Spectra contained in this data base were recorded by one or more of the following:

Undergraduate students:

Graduate students:

Postdoctoral fellows:

Visiting researchers:

COREX database pages prepared by Jaz.      last undated: 18-Aug-02 (aph)