First result of deuterium retention in neutron-irradiated tungsten exposed to high flux plasma in TPE

Shimada, M.; Hatano, Yuji; Calderoni, P.; Oda, Takuji; Oya, Yasuhisa; Sokolov, Mikhail A.; Zhang, K.; Cao, Guoping; Kolasinski, Robert; Sharpe, J. P.

doi:10.1016/j.jnucmat.2010.11.050

Cited by 70 publications

(53 citation statements)

References 18 publications

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“…The binding energy E bin was evaluated to be E bin = 1.44 eV by assuming E bin = E det − E d and E d = 0.39 eV [20]. As shown in previous papers [11,15], various types of defects with different E det were present in the n-irradiated specimens. Hence, 1.83 eV should be considered as the average value for several different types of traps.…”

Section: Thermal Desorption Of Deuterium From Neutron-irradiated Wmentioning

confidence: 91%

“…The detailed experimental procedures for n-irradiated specimens are described elsewhere [11,14], and so only a brief description is given here. Disk-type specimens of W ( 6 mm × 0.…”

Section: Neutron Irradiation and Measurement Of Thermal Desorption Spmentioning

confidence: 99%

“…In previous papers, the authors have investigated D retention in W irradiated with neutrons in a fission reactor [11][12][13][14][15]. First, W specimens irradiated to 0.025 dpa was exposed to high-flux D plasma at 473 K, and then the retention and detrapping of D were examined by thermal desorption spectroscopy (TDS) [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…First, W specimens irradiated to 0.025 dpa was exposed to high-flux D plasma at 473 K, and then the retention and detrapping of D were examined by thermal desorption spectroscopy (TDS) [11][12][13][14]. The D retention in n-irradiated specimen was clearly higher than that in non-irradiated specimen.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Trapping of hydrogen isotopes in radiation defects formed in tungsten by neutron and ion irradiations

Hatano

Shimada

Alimov

et al. 2013

Journal of Nuclear Materials

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Section: Thermal Desorption Of Deuterium From Neutron-irradiated Wmentioning

confidence: 91%

“…The detailed experimental procedures for n-irradiated specimens are described elsewhere [11,14], and so only a brief description is given here. Disk-type specimens of W ( 6 mm × 0.…”

Section: Neutron Irradiation and Measurement Of Thermal Desorption Spmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Trapping of hydrogen isotopes in radiation defects formed in tungsten by neutron and ion irradiations

Hatano

Shimada

Alimov

et al. 2013

Journal of Nuclear Materials

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“…Hydrogen retention in n-irradiated tungsten will occur throughout the bulk of the material and, therefore, there is the potential for large tritium inventories in fusion reactors [1,3] The best way to investigate the influence of n-produced defects on hydrogen isotope inventory in W is to have a source of fusion neutrons which still does not exist. Another possibility is an irradiation of W samples with fast neutrons (E > 0.1 MeV) in nuclear fission reactors [4,5,6,7]. However, because of low damaging rate and activation of samples, neutron irradiation to high damage levels (such as tens of dpa) is a difficult task.…”

Section: Introductionmentioning

confidence: 99%

Deuterium retention in tungsten damaged with W ions to various damage levels

Alimov

Hatano

Tyburska-Püschel

et al. 2013

Journal of Nuclear Materials

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Highlights W samples were pre-irradiated with 4.8 and 20 MeV W ions to various displacements per atom (dpa). Under following exposure to D plasmas radiation-induced defects were occupied by diffusing D atoms. At ≥ 0.1 dpa, the D concentration in the damage zone demonstrated weak dependence on the damage level. AbstractW samples were irradiated at 300 and 573 K with 4.8 and 20 MeV W ions to displacement damage levels in the range from 0.022 to 50 displacements per atom at the damage peak. 50 m thick W samples were exposed to high flux D plasma at 550 K on the side opposite to the damaged one, whereas 2 mm thick W samples were exposed to low flux D plasma at 403 K on the damaged side. Trapping of deuterium at displacement damage was examined by the D( 3 He, p) 4 He nuclear reaction with 3 He energies between 0.69 and 4.0 MeV allowing determination of the D concentration up to a depth of 6 lm. It was found that (i) at the damage level above 0.1 dpa, the concentration of the W-ion-induced defects responsible for trapping of diffusing D atoms depended very weakly on the numbers of displacements per atom, and (ii) the quasi-saturation concentration of the defects decreased by a factor of two as the W-ion irradiation temperature increased from 300 to 573 K.2

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Microstructure, hardening and deuterium retention in CVD tungsten irradiated with neutrons at temperatures of defect recovery stages II and III

Kuwabara²,

Alimov³

et al. 2022

Tungsten

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First result of deuterium retention in neutron-irradiated tungsten exposed to high flux plasma in TPE

Cited by 70 publications

References 18 publications

Trapping of hydrogen isotopes in radiation defects formed in tungsten by neutron and ion irradiations

Trapping of hydrogen isotopes in radiation defects formed in tungsten by neutron and ion irradiations

Deuterium retention in tungsten damaged with W ions to various damage levels

Microstructure, hardening and deuterium retention in CVD tungsten irradiated with neutrons at temperatures of defect recovery stages II and III

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