Comparative study of deuterium retention in irradiated Eurofer and Fe–Cr from a new ion implantation materials facility

Anthony Hollingsworth; Mikhail Lavrentiev; Rebecca Watkins; Alexandra Davies; Sophie Davies; Rob Smith; Daniel Mason; Aleksandra Baron-Wiechec; Zoltan Kollo; Jason  Hess; Ionut Jepu; Jari Likonen; Kalle Heinola; Kenichiro Mizohata; Estelle Meslin; Marie-France Barthe; Anna Widdowson; Iwan Grech; Kathrin Abraham; Emilie Pender; Alistair McShee; Yulia Martynova; Michaele Freisinger; Andree De Backer

doi:10.1088/1741-4326/ab546e

Comparative study of deuterium retention in irradiated Eurofer and Fe–Cr from a new ion implantation materials facility

Anthony Hollingsworth^*, Mikhail Lavrentiev, Rebecca Watkins, Alexandra Davies, Sophie Davies, Rob Smith, Daniel Mason, Aleksandra Baron-Wiechec, Zoltan Kollo, Jason Hess, Ionut Jepu, Jari Likonen, Kalle Heinola, Kenichiro Mizohata, Estelle Meslin, Marie-France Barthe, Anna Widdowson, Iwan Grech, Kathrin Abraham, Emilie PenderAlistair McShee, Yulia Martynova, Michaele Freisinger, Andree De Backer

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

14 Citations (Scopus)

Abstract

A new facility to study the interaction of hydrogen isotopes with nuclear fusion-relevant first wall materials, and their retention and release, has been produced. The new facility allows for implanting a range of gases into samples, including tritium. An accurate study of isotope effects, such as the isotopic exchange in damaged microstructure, has previously been difficult due to a background signal of light hydrogen. This new capability will allow virtually background free measurements using tritium and deuterium. The design and build of this facility are described and commissioning results are presented. Within the UKAEA-led tritium retention in controlled and evolving microstructure (TRiCEM) project, this facility is used for the comparative study of deuterium retention in self-ion irradiated Eurofer steel and Fe–Cr alloy. Self-ion bombardment with energies of 0.5 MeV is used to mimic the defects created by neutrons in fusion power plants and the created traps are then filled with deuterium in the new facility. Implanted samples are analysed using thermal desorption spectrometry (TDS), secondary ion mass spectrometry (SIMS), and transmission electron microscopy. Results on the total deuterium content as a function of time, TDS spectra and SIMS analysis are presented. A comparison of the results for Eurofer and Fe–Cr revealed several differences. While some of them may be due to experimental details like different time delays between exposure and analysis, others, such as deuterium retention as function of dose, might be genuine and require further studies.

Original language	English
Article number	016024
Number of pages	10
Journal	Nuclear Fusion
Volume	60
Issue number	1
DOIs	https://doi.org/10.1088/1741-4326/ab546e
Publication status	Published - 1 Jan 2020
MoE publication type	A1 Journal article-refereed

Funding

This work was supported by EUROfusion Enabling Research project TRiCEM, Tritium Retention in Controlled and Evolving Microstructure and part-funded by the EPSRC Program [grant number: EP/P012450/1]. This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training program 2014-2018 and 2019-2020 under grant agreement No. 633053.

Keywords

deuterium
tritium
Eurofer
iron-chromium
implanting
retention

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1088/1741-4326/ab546e

https://hal.science/hal-03026762v1

Cite this

Hollingsworth, A., Lavrentiev, M., Watkins, R., Davies, A., Davies, S., Smith, R., Mason, D., Baron-Wiechec, A., Kollo, Z., Hess, J., Jepu, I., Likonen, J., Heinola, K., Mizohata, K., Meslin, E., Barthe, M.-F., Widdowson, A., Grech, I., Abraham, K., ... De Backer, A. (2020). Comparative study of deuterium retention in irradiated Eurofer and Fe–Cr from a new ion implantation materials facility. Nuclear Fusion, 60(1), Article 016024. https://doi.org/10.1088/1741-4326/ab546e

@article{64947a2ef1374992b172235d136ef816,

title = "Comparative study of deuterium retention in irradiated Eurofer and Fe–Cr from a new ion implantation materials facility",

abstract = "A new facility to study the interaction of hydrogen isotopes with nuclear fusion-relevant first wall materials, and their retention and release, has been produced. The new facility allows for implanting a range of gases into samples, including tritium. An accurate study of isotope effects, such as the isotopic exchange in damaged microstructure, has previously been difficult due to a background signal of light hydrogen. This new capability will allow virtually background free measurements using tritium and deuterium. The design and build of this facility are described and commissioning results are presented. Within the UKAEA-led tritium retention in controlled and evolving microstructure (TRiCEM) project, this facility is used for the comparative study of deuterium retention in self-ion irradiated Eurofer steel and Fe–Cr alloy. Self-ion bombardment with energies of 0.5 MeV is used to mimic the defects created by neutrons in fusion power plants and the created traps are then filled with deuterium in the new facility. Implanted samples are analysed using thermal desorption spectrometry (TDS), secondary ion mass spectrometry (SIMS), and transmission electron microscopy. Results on the total deuterium content as a function of time, TDS spectra and SIMS analysis are presented. A comparison of the results for Eurofer and Fe–Cr revealed several differences. While some of them may be due to experimental details like different time delays between exposure and analysis, others, such as deuterium retention as function of dose, might be genuine and require further studies.",

keywords = "deuterium, tritium, Eurofer, iron-chromium, implanting, retention",

author = "Anthony Hollingsworth and Mikhail Lavrentiev and Rebecca Watkins and Alexandra Davies and Sophie Davies and Rob Smith and Daniel Mason and Aleksandra Baron-Wiechec and Zoltan Kollo and Jason Hess and Ionut Jepu and Jari Likonen and Kalle Heinola and Kenichiro Mizohata and Estelle Meslin and Marie-France Barthe and Anna Widdowson and Iwan Grech and Kathrin Abraham and Emilie Pender and Alistair McShee and Yulia Martynova and Michaele Freisinger and \{De Backer\}, Andree",

year = "2020",

month = jan,

day = "1",

doi = "10.1088/1741-4326/ab546e",

language = "English",

volume = "60",

journal = "Nuclear Fusion",

issn = "0029-5515",

publisher = "Institute of Physics IOP",

number = "1",

}

Hollingsworth, A, Lavrentiev, M, Watkins, R, Davies, A, Davies, S, Smith, R, Mason, D, Baron-Wiechec, A, Kollo, Z, Hess, J, Jepu, I, Likonen, J, Heinola, K, Mizohata, K, Meslin, E, Barthe, M-F, Widdowson, A, Grech, I, Abraham, K, Pender, E, McShee, A, Martynova, Y, Freisinger, M & De Backer, A 2020, 'Comparative study of deuterium retention in irradiated Eurofer and Fe–Cr from a new ion implantation materials facility', Nuclear Fusion, vol. 60, no. 1, 016024. https://doi.org/10.1088/1741-4326/ab546e

TY - JOUR

T1 - Comparative study of deuterium retention in irradiated Eurofer and Fe–Cr from a new ion implantation materials facility

AU - Hollingsworth, Anthony

AU - Lavrentiev, Mikhail

AU - Watkins, Rebecca

AU - Davies, Alexandra

AU - Davies, Sophie

AU - Smith, Rob

AU - Mason, Daniel

AU - Baron-Wiechec, Aleksandra

AU - Kollo, Zoltan

AU - Hess, Jason

AU - Jepu, Ionut

AU - Likonen, Jari

AU - Heinola, Kalle

AU - Mizohata, Kenichiro

AU - Meslin, Estelle

AU - Barthe, Marie-France

AU - Widdowson, Anna

AU - Grech, Iwan

AU - Abraham, Kathrin

AU - Pender, Emilie

AU - McShee, Alistair

AU - Martynova, Yulia

AU - Freisinger, Michaele

AU - De Backer, Andree

PY - 2020/1/1

Y1 - 2020/1/1

N2 - A new facility to study the interaction of hydrogen isotopes with nuclear fusion-relevant first wall materials, and their retention and release, has been produced. The new facility allows for implanting a range of gases into samples, including tritium. An accurate study of isotope effects, such as the isotopic exchange in damaged microstructure, has previously been difficult due to a background signal of light hydrogen. This new capability will allow virtually background free measurements using tritium and deuterium. The design and build of this facility are described and commissioning results are presented. Within the UKAEA-led tritium retention in controlled and evolving microstructure (TRiCEM) project, this facility is used for the comparative study of deuterium retention in self-ion irradiated Eurofer steel and Fe–Cr alloy. Self-ion bombardment with energies of 0.5 MeV is used to mimic the defects created by neutrons in fusion power plants and the created traps are then filled with deuterium in the new facility. Implanted samples are analysed using thermal desorption spectrometry (TDS), secondary ion mass spectrometry (SIMS), and transmission electron microscopy. Results on the total deuterium content as a function of time, TDS spectra and SIMS analysis are presented. A comparison of the results for Eurofer and Fe–Cr revealed several differences. While some of them may be due to experimental details like different time delays between exposure and analysis, others, such as deuterium retention as function of dose, might be genuine and require further studies.

AB - A new facility to study the interaction of hydrogen isotopes with nuclear fusion-relevant first wall materials, and their retention and release, has been produced. The new facility allows for implanting a range of gases into samples, including tritium. An accurate study of isotope effects, such as the isotopic exchange in damaged microstructure, has previously been difficult due to a background signal of light hydrogen. This new capability will allow virtually background free measurements using tritium and deuterium. The design and build of this facility are described and commissioning results are presented. Within the UKAEA-led tritium retention in controlled and evolving microstructure (TRiCEM) project, this facility is used for the comparative study of deuterium retention in self-ion irradiated Eurofer steel and Fe–Cr alloy. Self-ion bombardment with energies of 0.5 MeV is used to mimic the defects created by neutrons in fusion power plants and the created traps are then filled with deuterium in the new facility. Implanted samples are analysed using thermal desorption spectrometry (TDS), secondary ion mass spectrometry (SIMS), and transmission electron microscopy. Results on the total deuterium content as a function of time, TDS spectra and SIMS analysis are presented. A comparison of the results for Eurofer and Fe–Cr revealed several differences. While some of them may be due to experimental details like different time delays between exposure and analysis, others, such as deuterium retention as function of dose, might be genuine and require further studies.

KW - deuterium

KW - tritium

KW - Eurofer

KW - iron-chromium

KW - implanting

KW - retention

UR - https://www.scopus.com/pages/publications/85081330912

U2 - 10.1088/1741-4326/ab546e

DO - 10.1088/1741-4326/ab546e

M3 - Article

SN - 0029-5515

VL - 60

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 1

M1 - 016024

ER -

Comparative study of deuterium retention in irradiated Eurofer and Fe–Cr from a new ion implantation materials facility

Abstract

Funding

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this