David Krapohl

Universitetslektor|Senior Lecturer

  • Professional title: Senior Lecturer
  • Academic title: PhD (Engineering)
  • Department: Department of Electronics Design (EKS)
  • Telephone: 010-1428755
  • Email: david.krapohl@miun.se
  • Room number: S404
  • Location: Sundsvall
  • Research centers: Sensible Things that Communicate
  • Employee in the subject: Electronics, Electrical Engineering, Physics

David has a PhD degree in electronics from Mid Sweden University with a focus on the simulation of hybrid pixel detectors and neutron detectors. Now he is working with in the Milo project with X-ray systems for environmental monitoring.

David Krapohl has an engineering degree in mechatronics from Aachen University of Applied Sciences, Aachen, Germany. Half a year was a student exchange at Mälardalen University, Sweden.

Before coming to Sweden he worked as a research engineer at the University of Lübeck in the field of neuroscience (FEM simulation).

Area of interest

Hybride pixeldetectors (Medipix/Timepix)
Readout systems
X-ray radiation
Neutron (pixel) detectors
Pixel detector simulations (FEM, Monte Carlo)

Research

Medipix Collaboration (CERN)
Design of a semiconductor-based neutron detector (BrightnESS)
Timepix3 USB3 readout electronics (Glasgow University)

Teaching and tutoring

Course responsible in "Mätteknik för ingenjörer"
Lab responsible in "Ellära 1"
Supervision of a Master-by-Research student

Other information

If you are interested in a Master-by-Research position, feel free to send me an email. More information about research groups and projects as well as the Master programme is available here: https://www.miun.se/en/stc-research-centre/Research-Groups/Detector-and-Photonics https://www.miun.se/en/stc-research-centre/Research-Groups/Radiation-Sensor-Systems https://www.miun.se/en/stc-research-centre/Master-By-Research/

Research projects

Current

ImSpec - Multiple energy band imaging spectroscopy for material and object classification

Publications

Articles in journals
Conference papers
Doctoral theses, comprehensive summaries

Articles in journals

An, S. , Krapohl, D. , Norlin, B. & Thungström, G. (2020). Full-field X-ray fluorescence imaging with a straight polycapillary X-ray collimator. Journal of Instrumentation, vol. 15: 12  

Dreier, T. , Krapohl, D. , Maneuski, D. , Lawal, N. , Schöwerling, J. O. , O'Shea, V. & Fröjdh, C. (2018). A USB 3.0 readout system for Timepix3 detectors with on-board processing capabilities. Journal of Instrumentation, vol. 13    

Krapohl, D. , Schubel, A. , Fröjdh, E. , Thungström, G. & Fröjdh, C. (2016). Validation of Geant4 Pixel Detector Simulation Framework by Measurements with the Medipix Family Detectors. IEEE Transactions on Nuclear Science, vol. 63: 3, pp. 1874-1881.  

Norlin, B. , Reza, S. , Krapohl, D. , Fröjdh, E. & Thungström, G. (2015). Readout cross-talk for alpha-particle measurements in a pixelated sensor system. Journal of Instrumentation, vol. 10      

Schübel, A. , Krapohl, D. , Fröjdh, E. , Fröjdh, C. & Thungström, G. (2014). A Geant4 based framework for pixel detector simulation. Journal of Instrumentation, vol. 9: 12  

Thungström, G. , Esebamen, O. X. , Krapohl, D. , Fröjdh, C. , Nilsson, H. , Petersson, S. & Brenner, R. (2014). Fabrication, Characterization and Simulation of Channel Stop for n in p-Substrate Silicon Pixel Detectors. Journal of Instrumentation, vol. 9: 7, pp. Art. no. C07013  

Krapohl, D. , Fröjdh, C. , Fröjdh, E. , Maneuski, D. & Nilsson, H. (2013). Investigation of charge collection in a CdTe-Timepix detector. Journal of Instrumentation, vol. 8: May, pp. Art. no. C05003    

Thungström, G. , Harrnsdorf, L. , Norlin, B. , Reza, S. , Krapohl, D. , Mattsson, S. & Gunnarsson, M. (2013). Measurement of the sensitive profile in a solid state silicon detector, irradiated by X-rays. Journal of Instrumentation, vol. 8: 4, pp. Art. no. C04004  

Fröjdh, E. , Fröjdh, C. , Gimenez, E. N. , Krapohl, D. , Maneuski, D. , Norlin, B. , O'Shea, V. , Wilhelm, H. & et al. (2013). Probing Defects in a Small Pixellated CdTe Sensor Using an Inclined Mono Energetic X-Ray Micro Beam. IEEE Transactions on Nuclear Science, vol. 60: 4, pp. 2864-2869.  

Slavicek, T. , Kralik, M. , Krapohl, D. , Petersson, S. , Pospisil, S. & Thungström, G. (2012). A thermal neutron detector based on planar silicon sensor with TiB 2 coating. Journal of Instrumentation, vol. 7: 1, pp. Art. no. C01053  

Krapohl, D. , Nilsson, H. , Petersson, S. , Pospisil, S. , Slavicek, T. & Thungström, G. (2012). Simulation of a silicon neutron detector coated with TiB 2 absorber. Journal of Instrumentation, vol. 7: 1, pp. Art. no. C01096  

Esebamen, O. X. , Krapohl, D. , Thungström, G. & Nilsson, H. (2011). High resolution, low energy electron detector. Journal of Instrumentation, vol. 6: 1, pp. Art. no. P01001  

Krapohl, D. , Esebamen, O. X. , Nilsson, H. & Thungström, G. (2011). Simulation and measurement of short infrared pulses on silicon position sensitive device. Journal of Instrumentation, vol. 6: C01036  

Conference papers

Fröjdh, C. , Krapohl, D. & Thungström, G. (2016). Hard X-ray imaging and particle detection with TIMEPIX3. In Proceedings of SPIE - The International Society for Optical Engineering. (Proceedings of SPIE)  

Krapohl, D. (2013). Comparison of energy resolution spectra of CdTe TIMEPIX detector working in photon counting and time-over-threshold mode. In IEEE Nuclear Science Symposium Conference Record.. pp. Art. no. 6829825-  

Fröjdh, C. , Krapohl, D. , Reza, S. , Fröjdh, E. , Thungström, G. & Norlin, B. (2013). Spectral resolution in pixel detectors with single photon processing. In Proceedings of SPIE - The International Society for Optical Engineering. (Proceedings of SPIE). pp. Art. no. 88520O-  

Fröjdh, E. , Fröjdh, C. , Gimenez, E. , Krapohl, D. , Maneuski, D. , O'Shea, V. , Norlin, B. , Wilhelm, H. & et al. (2012). Probing Defects in a Small Pixellated CdTe Sensor Using an Inclined Mono Energetic X-Ray Micro Beam. In 2012 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE RECORD (NSS/MIC). (IEEE Nuclear Science Symposium Conference Record). pp. 4233--4236.

Krapohl, D. , Norlin, B. , Fröjdh, E. , Thungström, G. & Fröjdh, C. (2010). Simulation of the Spectral Response of a Pixellated X-Ray Imaging Detector in Single Photon Processing Mode. In 2010 Nuclear Science Symposium and Medical Imaging Conference.  

Norlin, B. , Fröjdh, E. , Krapohl, D. , Fröjdh, A. , Thungström, G. & Fröjdh, C. (2010). Spectroscopic X-Ray Imaging Using a Pixelated Detector with Single Photon Processing Readout. In Proceedings of 2010 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE. (IEEE Nuclear Science Symposium Conference Record). pp. 1074--1078.

Krapohl, D. , Loeffler, S. , Moser, A. & Hofmann, U. G. (2009). Microstimulation in The Brain : Does Microdialysis Influence the Activated Volume of Tissue?. In Proceedings of the COMSOL Conference Milan 2009. Milan :  

Doctoral theses, comprehensive summaries

Krapohl, D. (2015). Monte Carlo and Charge Transport Simulation of Pixel Detector Systems. Dis. (Comprehensive summary) Sundsvall : Mid Sweden University, 2015 (Mid Sweden University doctoral thesis : 215)