WORKING GROUPS

WG1: Instrumentation, modelling, data evaluation and software

Leaders: J.P. Santos [PT] & V. Mihucz [HU]

Objectives

  • To enable equal access to research infrastructures instrumentation and facilities;
  • To understand the most relevant issues about measurements, software and data analysis affecting the quality of results.

Detailed objectives

  • Collection of information about participants, research topics, instrumentation, experience.
  • Definition of the state of the art, literature and topics of experience of participants
  • Briefly review terminology, fields of TXRF applications and challenges
  • Identification of the most relevant infrastructures in EU and IPC-NNC where TXRF is available for external users and collection of contacts

Activities

  • Coordination and facilitation of the presence of members having limited access to capacity building infrastructures (TXRF & Synchrotron radiation facilities);
  • Understanding differences and cause-effects relations among sample matrix, residues mass and shape, and quantitative results, focusing on absorption and saturation effects;
  • To assure traceability of the TXRF results.

The Activity report of the first Grant Period is available.

Structure

Subgroup 1: Experimental parameters & instrumentation

Subgroup 1 leader: Christina Streli (Atominstitut, Technical University, Vienna, Austria)

Topics: Description of the different parameters to be taken into consideration (beam divergence, stability, elemental ranges to be probed, beam to sample to detector distances and uncertainty introduced by not illuminating the whole sample.

Subgroup 2: Available software for TXRF

Subgroup 2 leader: Giancarlo Pepponi (FBK- CMM – Micro Nano Facility, Trento, Italy)

Topics: Application of a few reference spectra to be used as a problem to be analysed with the different existing software packages. The spectra to be used should present high/low statistics; different elemental ranges; acquired with different systems in order to test the deconvolution capabilities of the software. Moreover, the chosen spectra should present few elements and also difficult deconvolution situations.

Subgroup 3: Data analysis & Concentration calibration procedure

Topics: evaluation of external vs internal calibration, LOD/LOQ, sensitivity, angular calibration, energy calibration

PAST AND UPCOMING MEETINGS

  1. Kick-off meeting on 9 July 2019 at Universidade Nova de Lisboa (UNL), Lisbon, Portugal
  2. 2nd WG1 meeting on 19 September 2019 at University of Brescia, Brescia, Italy (as part of the 1st MC meeting of CA18130)
  3. 3rd WG1 online meeting on 12 March 2020 coordinated from ELTE – Eötvös Loránd University, Budapest, Hungary
  4. 4th WG1 online progress meeting on 28 July 2020 coordinated from University of Brescia
  5. <tentative> 5th WG1 progress meeting on Novembre-December 2020
  6. <tentative> 6th WG1 progress blended (i.e. physical and on-line) meeting in February 2021, Budapest-Vienna during TXRF Training School planned in the frame of CA1813