Dr. M.W.E.M. (Matthias) Alfeld
Dr. M.W.E.M. (Matthias) Alfeld
Contact
Profile
Expertise
- X-ray Spectroscopy
- Vis-NIR spectroscopy
- Hyperspectral Imaging/Imaging Spectroscopy
- Chemometrics/Data evaluation
- Archaeometry
- Non destructive analysis of artworks
Biography
After finishing a professional training as chemical-technical assistant and doing my military service I started my studies in Chemistry at the University of Hamburg in 2003. Based on contacts made during an ERASMUS exchange I did my PhD thesis at the Universities of Hamburg and Antwerp from 2008-2013. Topic of my Thesis was the development of scanning macro-XRF for the investigation of historical paintings, involving the design of instruments and development of data evaluation workflows.
I worked from 2013-2015 at the German Particle Accelerator (Deutsches Elektronen Synchrotron, DESY) in Hamburg at the hard X-ray micro-probe P06. Here I supported users in the investigation of microscopic samples with X-rays and explored the use of matrix factorization for spectroscopic imaging.
From 2015 to 2018 I was Junior Chair at the Laboratory for Molecular and Structural Archaeology (Laboratoire d’Archéologie Moléculaire et Structurale (LAMS)) at the Sorbonne University in Paris. Here I used X-rays and hyperspectral imaging to study remnants of paint on archaeological objects from Antiquity and Ancient Egypt.
After an intermediate stay at DESY, filling in my old position, I am since November 2018 Assistant Professor at the TU Delft for "X-rays in Art and Archaeology", working on the investigation of cultural heritage objects, the development of new data evaluation workflows and contributing to the Smart*Light project.
A curated list of publications can be found in Google Scholar.
My open source data evaluation projects can be found here:
Datamuncher Fast, fused data evaluation for XRF imaging data.
Data Handler P A Python tool for data fusion and treatment of imaging data.
Expertise
Publications
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2023
A multimodal study of smalt preservation and degradation on the painting “Woman doing a Libation or Artemisia” from an anonymous painter of the Fontainebleau School
Clément de Mecquenem / Myriam Eveno / Matthias Alfeld / Ruven Pillay / Eric Laval / Elisabeth Ravaud / Ina Reiche
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2023
Cable Robots as Conventional Linear Stage Alternatives for the Investigation of Complex-Shaped Objects via Macroscopic X-ray Fluorescence Imaging
M.W.E.M. Alfeld / P. Tempel / V. van der Wijk
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2023
Comparison of macro x-ray fluorescence and reflectance imaging spectroscopy for the semi-quantitative analysis of pigments in easel paintings
A study on lead white and blue verditer
Luís Manuel de Almeida Nieto / Francesca Gabrieli / Annelies van Loon / Victor Gonzalez / Joris Dik / Raf Van de Plas / Matthias Alfeld -
2023
Hidden mysteries in ancient Egyptian paintings from the Theban Necropolis observed by in-situ XRF mapping
Philippe Martinez / M.W.E.M. Alfeld / Catherine Defeyt / Hishaam Elleithy / Helen Glanville / Melinda Hartwig / Francois-Philippe Hocquet / Maguy Jaber / Pauline Martinetto / David Strivay / Philippe Walter
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2022
Can deep learning assist automatic identification of layered pigments from XRF data?
Bingjie Jenny Xu / Yunan Wu / Pengxiao Hao / Marc Vermeulen / Alicia McGeachy / Kate Smith / Katherine Eremin / Georgina Rayner / Matthias Alfeld / More Authors
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Ancillary activities
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2022-01-01 - 2025-12-31
Other services
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2024-01-01 - 2025-12-31
Culture, sport and recreation
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2024-03-05 - 2025-12-31
Public administration, government, social security