Karlsruhe School of Elementary Particle and Astroparticle Physics: Science and Technology (KSETA)

Sebastian Fischer


Institute: Institute of Techical Physics - Tritium Laboratory Karlsruhe
Building: Campus North, B451
Room: 408 (Second floor)
Phone: +49 721 608 22522
Email: sebastian.fischer#kit.edu


  • Commissioning of the KATRIN Raman system and durability studies of optical coatings in glove box and tritium atmospheres
    Phd thesis, 2014/07/11
    Supervisor: Prof. Guido Drexlin
  • Investigations of laser stability in the KATRIN Raman setup and first depolarization measurements with tritium at TLK
    Diploma thesis, 2010/06/11
    Supervisor: Prof. Guido Drexlin
    LINK (10.8 MB)

Selected Talks

  • Monitoring of the KATRIN source composition using Raman spectroscopy
    International School of Nuclear Physics - Neutrino Physics: Present and Future, Erice, Italy 2013/09/22 Conference , Slides
  • Was bringen mir Neutrinos und das Wissen über ihre Masse?
    Outreach talk at science festival "EFFEKTE", Karlsruhe, 2013/06/25
  • Ramanspektroskopie zur Analyse von Tritiumgasgemischen
    Plenary talk at 20th anniversary celebration of Tritium Laboratory Karlsruhe, Karlsruhe, 2013/07/23
  • Laser Raman spectroscopy for the KATRIN experiment - Investigation of tritium resistant coatings
    ASPERA Technology Forum - Mirrors and Lasers in Astroparticle Physics Infrastructures, Pisa, Italy, 2011/10/21 Conference , Slides
  • Status of the KATRIN experiment
    International Europhysics Conference on High Energy Physics, Contributed talk, Grenoble, France, 2011/07/23 Conference , Proceedings
  • Tritium monitoring with Laser Raman spectroscopy for the KATRIN experiment}
    9th International Conference on Tritium Science and Technology (TRITIUM 2010), Invited Talk, Nara, Japan, 2010/10/29 Conference , Slides


  • S. Fischer, K. Schönung, B. Bornschein, R. Rolli, V. Schäfer, M. Sturm
    Investigation of Durability of Optical Coatings in Highly Purified Tritium Gas, accepted for publication in Fusion Sci. Technol. (2014)
  • Magnus Schlösser, Beate Bornschein, Sebastian Fischer, Timothy M. James, Florian Kassel, Simone Rupp, Michael Sturm, Helmut H. Telle
    Raman spectroscopy at the Tritium Laboratory Karlsruhe, , accepted for publication in Fusion Sci. Technol. (2014)
  • M. Schlösser, O. Pakari, S. Rupp, S. Mirz, S. Fischer
    How-to make Raman-inactive helium visible in Raman spectra of tritium-helium gas mixtures?, accepted for publication in Fusion Sci. Technol. (2014)
  • T-L. Le, D. J-P. Demange, S. Fischer, F.Priester, M. Roellig, M. Schlösser
    CAPER as central and crucial facility to support R&D with tritium at the TLK, accepted for publication in Fusion Sci. Technol. (2014)
  • T. M. James, M. Schlösser, S. Fischer, M. Sturm, B. Bornschein, R. J. Lewis, and H. H. Telle
    Accurate depolarization ratio measurements for all diatomic hydrogen isotopologues, Journal of Raman Spectroscopy, 44 6, 857 - 865 (2013), doi:10.1002/jrs.4283
  • M. Schlösser, S. Rupp, H. Seitz, S. Fischer, B. Bornschein, T. M. James, H. H. Telle
    Accurate calibration of the laser Raman system for the Karlsruhe Tritium Neutrino Experiment, Journal of Molecular Structure 1044 61-66 (2013), doi:10.1016/j.molstruc.2012.11.022
  • M. Schlösser, T. M. James, S. Fischer, R. J. Lewis, B. Bornschein and H. H. Telle
    Evaluation method for Raman depolarization measurements including geometrical effects and polarization aberrations, Journal of Raman Spectroscopy, 44 3 453-462 (2013) doi:10.1002/jrs.4201
  • M. Babutzka, M. Bahr, J. Bonn, B. Bornschein, A. Dieter, G. Drexlin, K. Eitel, S. Fischer, F. Glück, S. Grohmann, M. Hötzel, T. M. James, W. Käfer, M. Leber, B. Monreal, F. Priester M. Röllig, M. Schlösser, U. Schmitt, F. Sharipov, M. Steidl, M. Sturm, H. H. Telle and N. Titov
    Monitoring of the operating parameters of the KATRIN Windowless Gaseous Tritium Source, New Journal of Physics October (2012) 14 103046 2012, doi:10.1088/1367-2630/14/10/103046 arXiv:1205.5421v3 [physics.ins-det]
  • D. Demange, C.G. Alecu, N. Bekris, O. Borisevich, B. Bornschein, S. Fischer, N. Gramlich, Z. Köllö, T.L. Le, R. Michling, F. Priester, M. Röllig, M. Schlösser, S. Stämmler, M. Sturm, R. Wagner, S. Welte
    Overview of R&D at TLK for process and analytical issues on tritium management in breeder blankets of ITER and DEMO, Fusion Eng. Des., 87 7-8, 1206-1213 (2012), doi:10.1016/j.fusengdes.2012.02.105
  • S. Fischer, M. Sturm, M. Schlösser, B. Bornschein, G. Drexlin, F. Priester, R.J. Lewis, H.H. Telle
    Monitoring of tritium purity during long-term circulation in the KATRIN test experiment LOOPINO using Laser Raman Spectroscopy, Fusion Sci. Technol. 60 3, 925-930 (2011), Link arxiv.org:1208.1605
  • M. Schlösser, S. Fischer, M. Sturm, B. Bornschein, R.J. Lewis, H.H. Telle
    Design implications for Laser Raman measurement systems for tritium sample analysis, accountancy and process-control applications, Fusion Sci. Technol. 60 3, 976-981 (2011), Link

Annual reports

Annual report 2013

Final report 2014

Last change: 2014/08/07