The materials irradiation experiment for testing plasma facing materials at fusion relevant conditions

Garrison, L. M.; Zenobia, Samuel J.; Egle, Brian J.; Kulcinski, Gerald L.; Santarius, John F.

doi:10.1063/1.4959201

Title: The materials irradiation experiment for testing plasma facing materials at fusion relevant conditions

Journal Article · Mon Aug 01 00:00:00 EDT 2016 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4959201· OSTI ID:1319184

Garrison, L. M. ^[1]; Zenobia, Samuel J. ^[2]; Egle, Brian J. ^[1];

^[2]; Santarius, John F. ^[2]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Wisconsin, Madison, WI (United States). Fusion Technology Institute
Univ. of Wisconsin, Madison, WI (United States). Fusion Technology Institute

The Materials Irradiation Experiment (MITE-E) was constructed at the University of Wisconsin-Madison Inertial Electrostatic Confinement Laboratory to test materials for potential use as plasma-facing materials (PFMs) in fusion reactors. PFMs in fusion reactors will be bombarded with x-rays, neutrons, and ions of hydrogen and helium. More needs to be understood about the interactions between the plasma and the materials to validate their use for fusion reactors. The MITE-E simulates some of the fusion reactor conditions by holding samples at temperatures up to 1000°C while irradiating them with helium or deuterium ions with energies from 10 to 150 keV. The ion gun can irradiate the samples with ion currents of 20 μA–500 μA; the typical current used is 72 μA, which is an average flux of 9 × 10¹⁴ ions/(cm² s). The ion gun uses electrostatic lenses to extract and shape the ion beam. A variable power (1-20 W), steady-state, Nd:YAG laser provides additional heating to maintain a constant sample temperature during irradiations. The ion beam current reaching the sample is directly measured and monitored in real-time during irradiations. The ion beam profile has been investigated using a copper sample sputtering experiment. In conclusion, the MITE-E has successfully been used to irradiate polycrystalline and single crystal tungsten samples with helium ions and will continue to be a source of important data for plasma interactions with materials.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Laboratory Directed Research and Development (LDRD) Program

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1319184

Alternate ID(s):: OSTI ID: 1420616

Journal Information:: Review of Scientific Instruments, Vol. 87, Issue 8; ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 9 works

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The dual advanced ion simultaneous implantation experiment (DAISIE) for testing plasma-facing materials Jasica, Matthew J.; Kulcinski, Gerald L.; Santarius, John F. Review of Scientific Instruments, Vol. 90, Issue 10 https://doi.org/10.1063/1.5120040	journal	October 2019
Preliminary Results of He Implantation in Tungsten at Angled Incidence in DAISIE Jasica, Matthew J.; Kulcinski, Gerald L.; Santarius, John F. Fusion Science and Technology, Vol. 72, Issue 4 https://doi.org/10.1080/15361055.2017.1350482	journal	August 2017
Periodic Surface Morphology Characteristics of Tungsten Under Simultaneous Helium and Deuterium Bombardment at 30 keV Jasica, Matthew J.; Kulcinski, Gerald L.; Santarius, John F. Fusion Science and Technology, Vol. 75, Issue 6 https://doi.org/10.1080/15361055.2019.1602397	journal	May 2019
Development of Surface Morphologies on Single Crystal Tungsten Irradiated with 30 keV Helium Ions at 900ºC Hall, Karla B. W.; Kulcinski, Gerald L.; Santarius, John F. Fusion Science and Technology, Vol. 75, Issue 6 https://doi.org/10.1080/15361055.2019.1612227	journal	May 2019

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