David Fischer

Research Scientist

617-252-1818

NW17-219

Biography

Education

TU Wien, Austria (2019) 
Dr. techn. (Doctor of Science), Engineering Sciences Technical Physics

TU Wien, Austria (2014)
Diplom-Ingenieur (Master of Science), Technical Physics

Expertise

Effects of radiation damage on the superconducting properties of REBCO tapes

Research

I am researching how radiation damage influences the critical currents in high-temperature superconductors, specifically REBCO tapes. We create conditions in our experimental setups, that enable us to understand how neutron irradiation will affect the behaviour of fusion magnets. The goal is to determine the parameters necessary to obtain fusion relevant experimental results while having short test cycles.

The findings are important for optimizing the shielding requirements and magnet design to achieve a long enough life-time of this key component of a fusion reactor.

Publications

“Recovering the performance of irradiated high temperature superconductors for use in fusion magnets”, R Unterrainer, DX Fischer, A Lorenz, M Eisterer, Supercond. Sci. Technol. 35 04LT01, 2022.

“Analysing neutron radiation damage in YBa2Cu3O7–x high-temperature superconductor tapes”, Y Linden, WR Iliffe, G He, M Danaie, DX Fischer, M Eisterer, SC Speller, CRM Grovenor, Journal of Microscopy, 1–10, 2022.

“How fusion brings high-temperature superconductors into the energy industry”, DX Fischer, Proceedings OMC Med Energy Conference and Exhibition, 2021.

“Progress in the design of the superconducting magnets for the EU DEMO“, V Corato et al, Fusion Engineering and Design, 136 1597-1604, 2018.

“The effect of fast neutron irradiation on the superconducting properties of REBCO coated conductors with and without artificial pinning centers“, DX Fischer, R Prokopec, J Emhofer, M Eisterer, Supercond. Sci. Technol. 31 044006, 2018.

“Interaction of vortices in anisotropic superconductors with an isotropic defect landscape“, V Mishev, M Zehetmayer, DX Fischer, M Nakajima, H Eisaki, M Eisterer, Supercond. Sci. Technol. 28 102001, 2015.

“Suitability of coated conductors for fusion magnets in view of their radiation response“, R Prokopec, DX Fischer, HW Weber, M Eisterer, Supercond. Sci. Technol. 28 014005, 2015.V Corato et al, “Progress in the design of the superconducting magnets for the EU DEMO“, Fusion Engineering and Design, 136 1597-1604, 2018.

Conference Contributions

Talk: “Effects of cryogenic proton irradiation on Ic and Tc in REBCO tapes”, ASC 2022, Honolulu, USA

Talk: “How fusion brings high-temperature superconductors into the energy industry”, OMC 2021, Ravenna, Italy

Talk: "Degradation and annealing of coated conductors after cryogenic irradiation", EUCAS 2021, Moscow, Russia (virtual)

Talk: “HTS for Fusion – Fusion for HTS?”, ASC 2018, Seattle, USA

Talk: “Effect of neutron irradiation on the superconducting properties of REBCO tapes”, CCA 2018, Vienna, Austria

Talk: “Effect of artificial pinning centers on the fluence dependence of critical currents in neutron irradiated coated conductor tapes”, 4th HTS4Fusion Conductor Workshop, Nagoya, Japan

Talk: “Influence of artificial pinning centers on the radiation resistance of coated conductors”, 4th Fusion Day, Leoben, Austria

Talk: “Influence of artificial pinning centers on the radiation resistance of coated conductors”, EUCAS 2017, Geneva, Switzerland

Talk: “High temperature superconductors for fusion magnets”, 3rd Fusion Day, Innsbruck, Austria

Poster: “Effects of neutron irradiation on the critical currents of various commercially available coated conductor tapes”, CCA 2016, Aspen, USA

Poster: “Neutron irradiation studies on different types of commercially available coated conductor tapes”, ASC 2016, Denver, USA

Talk: “Neutron Irradiation Studies on Superconducting Properties of Coated Conductor Tapes for Fusion Magnets”, 2nd Fusion Day, Vienna, Austria

Talk: “Effects of fast neutron irradiation on the critical currents in GdBCO coated conductor tapes”, 3rd HTS4Fusion Conductor Workshop, Pieve Santo Stefano, Italy

Poster: “Assessment of critical currents in coated conductors at low temperatures”, EUCAS 2015, Lyon, France

Talk: “Superconducting properties of irradiated GdBCO coated conductor tapes”, CCA 2014, Jeju City, South Korea

Talk: “Radiation resistance of technological superconductors in view of fusion applications”, 1st Fusion Day, Graz, Austria