Round Robins
Funding is available for round robin studies through SPIRIT, to cover transportation of people and samples. If you have an idea of a round robin that you would like to set up, please contact Brian Jones (b.jones@surrey.ac.uk).
Ti:N Ratio in TiN films
A round robin to determine the Ti:N ratio in TiN films has been proposed by Chris Jeynes at Surrey and is currently in progress. If you would like to participate, please contact Chris on c.jeynes@surrey.ac.uk. For information, please click here
RBS determination of implanted fluence
A round robin to test the realiability of RBS for determining implanted fluences is curently in progress. if you would like to participate, please contact Chris Jeynes : c.jeynes@surrey.ac.uk. For more information, please click here
Gunshot Residue Location and Analysis using microbeam PIXE
A round robin to test the reproducibility of locating and analysing gunshot residue particles using microbeam PIXE is about to commence. If you would like to participate, please contact Melanie Bailey : m.bailey@surrey.ac.uk
Imaging of biomedical samples
A round robin to test the reproducibility of imaging biological samples has been proposed by Philippe Moretto and is about to commence. The aim of the study is to establish an inter-calibration procedure in order to make consistent data provided by the different groups involved in SPIRIT and providing access to microbeam analysis in biomedicine. We propose to mimic frozen thin sections of mammalian tissues by using gelatine gels. In this way, we hope to prove the reliability and reproducibility of quantitative procedures usually employed in our community to derive absolute concentrations from nuclear microscopy. For this purpose, dedicated reference samples will be prepared by sectioning cryofixed gelatine gel standards uniformly loaded with titanium at different concentrations. Thin freeze-dried sections will be analyzed using the different setups. PIXE will be carried out to measure the Ti level whereas RBS and/or STIM will allow the normalization of results in terms of concentrations. For more information, read the protocol or please contact Philippe Moretto: moretto@cenbg.in2p3.fr
Details of future round robin studies will be posted here.
Beam Damage Questionnaire
One deliverable for SPIRIT is a Best Practice handbook concerning beam damage during ion beam analysis. This deliverable is the joint responsibility of all the partners, but is being coordinated by UPMC, in the hands of Dhafira Benzeggouta (dhafira.benzeggouta@insp.jussieu.fr), SPIRIT PostDoc.
As a first step we would like some information from you, but please note that the Handbook will be limited to damage induced during IBA measurements.
1) Please tell Dhafira about any publications from your lab, over the last few decades, in which beam damage during IBA is specifically treated. We are searching the literature, but it will be reassuring to have your own lists in case we miss something from a SPIRIT partner.
2) Please tell Dhafira about any publications you are aware of from labs outside of SPIRIT, dealing with damage induced by IBA measurements. nb: please provide the full bibliographic reference, and if you have it, a pdf of the publication.
3) In many cases when beam damage is a problem during a measurement, the measurement is abandoned and the work is not published. We suspect that there is a lot of useful data about beam damage lying around unpublished in the SPIRIT labs. If you have such data, please let Dhafira know succinctly what you have: incident beam species and dose, target, and nature of damage observed. Once we have an idea of what really is there, we will decide how best to collect and archive the information.
4) We would also like to know about your present problems, concerns and approaches to beam damage during IBA, of course including work performed under TNA provisions. Please give Dhafira a brief description for starters. We will come back for more details once we have an overview of things within SPIRIT.
