Neutron irradiation of tungsten in hydrogen environment at HFIR

Nesrin O. Cetiner; Yuji Hatano; Joel L. McDuffee; Dan Ilas; Yutai Katoh; Josina W. Geringer; Takeshi Toyama

doi:10.1016/j.fusengdes.2022.113089

Neutron irradiation of tungsten in hydrogen environment at HFIR

Nesrin O. Cetiner^*, Yuji Hatano, Joel L. McDuffee, Dan Ilas, Yutai Katoh, Josina W. Geringer, Takeshi Toyama

^*この論文の責任著者

研究推進機構水素同位体科学研究センター

研究成果: ジャーナルへの寄稿 › 学術論文 › 査読

2 被引用数 (Scopus)

抄録

Neutron irradiation of tungsten with and without the presence of hydrogen is needed to understand the influence of hydrogen on microstructure development under fusion reactor conditions. However, there is a risk of ignition if air ingress occurs during seal welding of irradiation capsules in a pressurized hydrogen environment. Therefore, an irradiation capsule was designed that contains several disks of vanadium hydrides at a 30% hydrogen-to-metal atomic ratio. During irradiation, the hydrogen is released from the hydrides as the capsule temperature increases, so the irradiation capsule environment is mostly hydrogen when the capsule reaches its 400 °C design temperature. This paper describes the design and operating characteristics of this first-of-a-kind irradiation capsule.

本文言語	英語
論文番号	113089
ジャーナル	Fusion Engineering and Design
巻	178
DOI	https://doi.org/10.1016/j.fusengdes.2022.113089
出版ステータス	出版済み - 2022/05

ASJC Scopus 主題領域

土木構造工学
原子力エネルギーおよび原子力工学
材料科学一般
機械工学

文献へのアクセス

10.1016/j.fusengdes.2022.113089

引用スタイル

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title = "Neutron irradiation of tungsten in hydrogen environment at HFIR",

abstract = "Neutron irradiation of tungsten with and without the presence of hydrogen is needed to understand the influence of hydrogen on microstructure development under fusion reactor conditions. However, there is a risk of ignition if air ingress occurs during seal welding of irradiation capsules in a pressurized hydrogen environment. Therefore, an irradiation capsule was designed that contains several disks of vanadium hydrides at a 30% hydrogen-to-metal atomic ratio. During irradiation, the hydrogen is released from the hydrides as the capsule temperature increases, so the irradiation capsule environment is mostly hydrogen when the capsule reaches its 400 °C design temperature. This paper describes the design and operating characteristics of this first-of-a-kind irradiation capsule.",

keywords = "Fusion reactors, HFIR, HFIR irradiation experiment, Hydrogen infused vanadium, Hydrogen retention, Tungsten irradiation",

author = "Cetiner, {Nesrin O.} and Yuji Hatano and McDuffee, {Joel L.} and Dan Ilas and Yutai Katoh and Geringer, {Josina W.} and Takeshi Toyama",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

month = may,

doi = "10.1016/j.fusengdes.2022.113089",

language = "英語",

volume = "178",

journal = "Fusion Engineering and Design",

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T1 - Neutron irradiation of tungsten in hydrogen environment at HFIR

AU - Cetiner, Nesrin O.

AU - Hatano, Yuji

AU - McDuffee, Joel L.

AU - Ilas, Dan

AU - Katoh, Yutai

AU - Geringer, Josina W.

AU - Toyama, Takeshi

PY - 2022/5

Y1 - 2022/5

N2 - Neutron irradiation of tungsten with and without the presence of hydrogen is needed to understand the influence of hydrogen on microstructure development under fusion reactor conditions. However, there is a risk of ignition if air ingress occurs during seal welding of irradiation capsules in a pressurized hydrogen environment. Therefore, an irradiation capsule was designed that contains several disks of vanadium hydrides at a 30% hydrogen-to-metal atomic ratio. During irradiation, the hydrogen is released from the hydrides as the capsule temperature increases, so the irradiation capsule environment is mostly hydrogen when the capsule reaches its 400 °C design temperature. This paper describes the design and operating characteristics of this first-of-a-kind irradiation capsule.

AB - Neutron irradiation of tungsten with and without the presence of hydrogen is needed to understand the influence of hydrogen on microstructure development under fusion reactor conditions. However, there is a risk of ignition if air ingress occurs during seal welding of irradiation capsules in a pressurized hydrogen environment. Therefore, an irradiation capsule was designed that contains several disks of vanadium hydrides at a 30% hydrogen-to-metal atomic ratio. During irradiation, the hydrogen is released from the hydrides as the capsule temperature increases, so the irradiation capsule environment is mostly hydrogen when the capsule reaches its 400 °C design temperature. This paper describes the design and operating characteristics of this first-of-a-kind irradiation capsule.

KW - Fusion reactors

KW - HFIR

KW - HFIR irradiation experiment

KW - Hydrogen infused vanadium

KW - Hydrogen retention

KW - Tungsten irradiation

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DO - 10.1016/j.fusengdes.2022.113089

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AN - SCOPUS:85127751869

SN - 0920-3796

VL - 178

JO - Fusion Engineering and Design

JF - Fusion Engineering and Design

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ER -

Neutron irradiation of tungsten in hydrogen environment at HFIR

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