Formation FAME+ / FAME+ training

What is FAME+ ?

Considering the technical complexity of synchrotron radiation experiments and the difficulty to obtain beamtime via the various program committees, few new teams having scientific problems adapted to these instruments use the FAME beamline. We decided then in 2004 to organize an annual training for users. This training is organized with the organizational help of the CNRS permanent training and the support of INSU CNRS institute.

Main goals

The main goals of this formation are to explain:

• the technical aspects of the experiment and the various analysis possibilities,

• the optical adjustments of the beamline.

The training is conceived with lectures, praticals on the beamline and tutorials on computer. To summarize, the training clarifying the FAME operations have several interests:

• open the beamline to the whole communities,

• make more autonomous the actual or future users, from a technical point of view,

• increase the safety on the beamline,

• give to the users a critical glance on all the important points which allow the realization of an experiment under optimal conditions,

• give to the users the up-to-date tools to analyze their data.

This project was initially reserved for the Earth sciences community but it has been quite soon opened to the other scientific communities. Since 2004, 114 trainees issued from 45 laboratories followed this course.

Last session took place from 9th to 13rd May 2011, next one will be scheduled in May 2012. The language is French.

FAME+ lectures

Jean-Louis Hazemann - Beamline optic generalities / Généralités sur l’optique de la ligne

Yves Joly - XANES calculation / Calculs XANES

Pierre Lagarde - EXAFS theory / Théorie de l’EXAFS

Olivier Proux - Detection apparatus / Systèmes de détection

Manuel Muñoz - Wavelets method / Méthode des ondelettes

Marie-Anne Arrio - Multiplets method / Méthode des multiplets

FAME+ Tutorials & Practicals

Amélie Juhin & Marie-Anne Arrio - Multiplets calculation / Calculs multiplets

Yves Joly - XANES calculation / Simulation spectroscopie XANES

Denis Testemale - Sample preparation / Préparation des échantillons

Olivier Proux - Proposal / Dépôt de projet

Denis Testemale - High pressure experiment / Expériences sous pression

FAME+ computing ressources

EXAFS analysis using Athena & Artemis

EXAFS analysis is performed using Athena and Artemis programs which can be downloaded here. Several useful tutorials can be also downloaded here.

XANES calculations using FDMNES

A package including a Windows XP executable, a Linux 64 bits executable, the FORTRAN 90 routines, a set of examples and the manual can be downloaded here, with a folder containing the examples for the tutorial here

Charge Transfer Multiplet Calculations for X-ray Absorption Spectroscopy (CTM4XAS)

The program can be downloaded, after simple registration, here

The software can be installed on windows, following the instructions

Continuous wavelet transformation

The continuous wavelet transformation software has been written by Matthew Marcus (from ALS Berkeley) with LabView and can be downloaded here, on the "utilites" page (on the left).

You need to install the Runtime engine, to copy the lvanlys.dll and the wavelet.exe in the same folder.

LabView is not required, but you will need:

• to have the administrator right to operate (not only during the installation procedure)

• to have as a decimal separator a dot '.', not a coma ','

Reference paper of the program can be found here.

 Quality Verification  of the fluorescence spectra

Then you must installed:

•PyQt4 (under ubuntu, install python-qt4)

•Qwt5 (under ubuntu, install python-qwt5-qt4)

•numpy

•specfile.so is a library. Must be installed in a folder where the python path is define (ex: on ubuntu with python2.6, must be insatlled in /usr/lib/python2.6/dist-packages). This library can be downloaded here

Other lectures

As an introduction to the multiplet lectures, two wiki pages on the crystal field theory, in french and in english.

For the EXAFS theory, numerous lectures can be found, for example on our webpage in french or in english.

Those who want a more detailed overview on Energy resolving semiconductor detectors for X-ray spectroscopy can read this John Morse's lecture.