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Continuous laser illumination for in situ investigation of tungsten erosion under transient thermal loads. / Vasilyev, A. A.; Arakcheev, A. S.; Burdakov, A. V. et al.

In: Fusion Engineering and Design, Vol. 146, 01.09.2019, p. 2366-2370.

Research output: Contribution to journalArticlepeer-review

Harvard

Vasilyev, AA, Arakcheev, AS, Burdakov, AV, Bataev, IA, Kandaurov, IV, Kasatov, AA, Kurkuchekov, VV, Popov, VA, Shoshin, AA, Trunev, YA & Vyacheslavov, LN 2019, 'Continuous laser illumination for in situ investigation of tungsten erosion under transient thermal loads', Fusion Engineering and Design, vol. 146, pp. 2366-2370. https://doi.org/10.1016/j.fusengdes.2019.03.192

APA

Vasilyev, A. A., Arakcheev, A. S., Burdakov, A. V., Bataev, I. A., Kandaurov, I. V., Kasatov, A. A., Kurkuchekov, V. V., Popov, V. A., Shoshin, A. A., Trunev, Y. A., & Vyacheslavov, L. N. (2019). Continuous laser illumination for in situ investigation of tungsten erosion under transient thermal loads. Fusion Engineering and Design, 146, 2366-2370. https://doi.org/10.1016/j.fusengdes.2019.03.192

Vancouver

Vasilyev AA, Arakcheev AS, Burdakov AV, Bataev IA, Kandaurov IV, Kasatov AA et al. Continuous laser illumination for in situ investigation of tungsten erosion under transient thermal loads. Fusion Engineering and Design. 2019 Sept 1;146:2366-2370. doi: 10.1016/j.fusengdes.2019.03.192

Author

Vasilyev, A. A. ; Arakcheev, A. S. ; Burdakov, A. V. et al. / Continuous laser illumination for in situ investigation of tungsten erosion under transient thermal loads. In: Fusion Engineering and Design. 2019 ; Vol. 146. pp. 2366-2370.

BibTeX

@article{80b522ad097644bbb122acbf3b0dccfe,
title = "Continuous laser illumination for in situ investigation of tungsten erosion under transient thermal loads",
abstract = " Two types of in situ optical diagnostics of erosion processes on tungsten surface caused by transient heat loads were developed and applied on the BETA (Beam of Electrons for materials Test Applications) facility at Budker Institute of Nuclear Physics. Tungsten plates were exposed to an electron beam with a duration of up to 350 μs and with an absorbed heat flux factor (HFF) of 20-50 MJ/m 2 s 0.5 , which is below the melting threshold. The distribution of thermal radiation on the sample front surface was imaged by a CCD camera. In addition, the illumination of the target surface with a continuous wave laser was used to record various types of material modification: roughening, cracking, bending, and local melting. The tile bending is associated with thermal expansion and irreversible plastic deformation of the heated thin layer. The lift of edges of the cracks during their formation is detected by recording the intensity of reflected and scattered radiation, and the resulting structure of the cracks is visualized with a CCD camera. The latter system can also identify the appearance of molten grains on the irradiated surface due to their low thermal bond to the material bulk. The described optical systems are able to detect first wall damaging during a plasma discharge in devices with magnetic confinement. ",
keywords = "Cracking, Electron beam, Melting, Optical diagnostics, Transient thermal load, Tungsten",
author = "Vasilyev, {A. A.} and Arakcheev, {A. S.} and Burdakov, {A. V.} and Bataev, {I. A.} and Kandaurov, {I. V.} and Kasatov, {A. A.} and Kurkuchekov, {V. V.} and Popov, {V. A.} and Shoshin, {A. A.} and Trunev, {Yu A.} and Vyacheslavov, {L. N.}",
year = "2019",
month = sep,
day = "1",
doi = "10.1016/j.fusengdes.2019.03.192",
language = "English",
volume = "146",
pages = "2366--2370",
journal = "Fusion Engineering and Design",
issn = "0920-3796",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Continuous laser illumination for in situ investigation of tungsten erosion under transient thermal loads

AU - Vasilyev, A. A.

AU - Arakcheev, A. S.

AU - Burdakov, A. V.

AU - Bataev, I. A.

AU - Kandaurov, I. V.

AU - Kasatov, A. A.

AU - Kurkuchekov, V. V.

AU - Popov, V. A.

AU - Shoshin, A. A.

AU - Trunev, Yu A.

AU - Vyacheslavov, L. N.

PY - 2019/9/1

Y1 - 2019/9/1

N2 - Two types of in situ optical diagnostics of erosion processes on tungsten surface caused by transient heat loads were developed and applied on the BETA (Beam of Electrons for materials Test Applications) facility at Budker Institute of Nuclear Physics. Tungsten plates were exposed to an electron beam with a duration of up to 350 μs and with an absorbed heat flux factor (HFF) of 20-50 MJ/m 2 s 0.5 , which is below the melting threshold. The distribution of thermal radiation on the sample front surface was imaged by a CCD camera. In addition, the illumination of the target surface with a continuous wave laser was used to record various types of material modification: roughening, cracking, bending, and local melting. The tile bending is associated with thermal expansion and irreversible plastic deformation of the heated thin layer. The lift of edges of the cracks during their formation is detected by recording the intensity of reflected and scattered radiation, and the resulting structure of the cracks is visualized with a CCD camera. The latter system can also identify the appearance of molten grains on the irradiated surface due to their low thermal bond to the material bulk. The described optical systems are able to detect first wall damaging during a plasma discharge in devices with magnetic confinement.

AB - Two types of in situ optical diagnostics of erosion processes on tungsten surface caused by transient heat loads were developed and applied on the BETA (Beam of Electrons for materials Test Applications) facility at Budker Institute of Nuclear Physics. Tungsten plates were exposed to an electron beam with a duration of up to 350 μs and with an absorbed heat flux factor (HFF) of 20-50 MJ/m 2 s 0.5 , which is below the melting threshold. The distribution of thermal radiation on the sample front surface was imaged by a CCD camera. In addition, the illumination of the target surface with a continuous wave laser was used to record various types of material modification: roughening, cracking, bending, and local melting. The tile bending is associated with thermal expansion and irreversible plastic deformation of the heated thin layer. The lift of edges of the cracks during their formation is detected by recording the intensity of reflected and scattered radiation, and the resulting structure of the cracks is visualized with a CCD camera. The latter system can also identify the appearance of molten grains on the irradiated surface due to their low thermal bond to the material bulk. The described optical systems are able to detect first wall damaging during a plasma discharge in devices with magnetic confinement.

KW - Cracking

KW - Electron beam

KW - Melting

KW - Optical diagnostics

KW - Transient thermal load

KW - Tungsten

UR - http://www.scopus.com/inward/record.url?scp=85064393369&partnerID=8YFLogxK

U2 - 10.1016/j.fusengdes.2019.03.192

DO - 10.1016/j.fusengdes.2019.03.192

M3 - Article

AN - SCOPUS:85064393369

VL - 146

SP - 2366

EP - 2370

JO - Fusion Engineering and Design

JF - Fusion Engineering and Design

SN - 0920-3796

ER -

ID: 19623119