A. A. Haasz

University of Toronto

*This is an algorithmically generated author record based on publicly available information.

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University of Toronto

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A. A. Haasz has a total of 28 co-authors. Here are the top co-authors by number of shared publications:

James W. Davis
University of Toronto
13 shared publications
J.W. Davis
University of Toronto Institute for Aerospace Studies, 4925 Dufferin Street, Toronto, Ontario, Canada M3H 5T6
3 shared publications
E. Vietzke
Institut für Plasmaphysik, KFA Jülich, Association Euratom-KFA, D-5170 Jülich, Germany
2 shared publications
P.C. Stangeby
Fusion Research Group, University of Toronto Institute for Aerospace Studies and Centre for Nuclear Engineering, 4925 Dufferin Street, Downsview, Ontario, Canada M3H 5T6
2 shared publications
R.G Macaulay-Newcombe
University of Toronto Institute for Aerospace Studies, 4925 Dufferin Street, Toronto, Ontario, Canada, M3H 5T6
2 shared publications
V. Philipps
Institute of Energy and Climate Research – Plasma Physics, Forschungszentrum Jülich GmbH, Association EURATOM-FZJ, Partner In the Trilateral Euregio Cluster, D-52425 Jülich, Germany
2 shared publications

Latest Publications

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Cited by 1
- 22 November 2017
- Published by IOP Publishing in Physica Scripta
The effect of high energy ion beam analysis on D trapping in W
by T J Finlay, J W Davis, T Schwarz-Selinger, A A Haasz
High energy ion beam analyses (IBA) are invaluable for measuring concentration depth profiles of light elements in solid materials, and important in the study of fusion fuel retention in tokamaks. Polycrystalline W specimens were implanted at 300 and 500 K, 5–10 × 10²³ D m⁻² fluence, with deuterium-only and simultaneous D-3%He ion beams. Selected specimens were analysed by elastic recoil detection analysis (ERDA) and/or nuclear reaction analysis (NRA). All specimens were measured by thermal desorption spectroscopy (TDS). The D TDS spectra show an extra peak at 900–1000 K following ERDA and/or NRA measurements. The peak height appears to correlate with the amount of D initially trapped beyond the calculated IBA probe beam peak damage depth. Similar to pre-implantation damage scenarios, the IBA probe beam creates empty high energy traps which later retrap D atoms during TDS heating, which is supported by modelling experimental results using the Tritium Migration Analysis Program.
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- 22 November 2017
- Published by IOP Publishing in Physica Scripta
The effect of high energy ion beam analysis on D trapping in W
by T J Finlay, J W Davis, T Schwarz-Selinger, A A Haasz
High energy ion beam analyses (IBA) are invaluable for measuring concentration depth profiles of light elements in solid materials, and important in the study of fusion fuel retention in tokamaks. Polycrystalline W specimens were implanted at 300 and 500 K, 5–10 × 10²³ D m⁻² fluence, with deuterium-only and simultaneous D-3%He ion beams. Selected specimens were analysed by elastic recoil detection analysis (ERDA) and/or nuclear reaction analysis (NRA). All specimens were measured by thermal desorption spectroscopy (TDS). The D TDS spectra show an extra peak at 900–1000 K following ERDA and/or NRA measurements. The peak height appears to correlate with the amount of D initially trapped beyond the calculated IBA probe beam peak damage depth. Similar to pre-implantation damage scenarios, the IBA probe beam creates empty high energy traps which later retrap D atoms during TDS heating, which is supported by modelling experimental results using the Tritium Migration Analysis Program.
Cited by 1
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Cited by 1
- 31 January 2012
- Published by Elsevier in Journal of Nuclear Materials
Uptake of deuterium in partially D-depleted residual codeposits left on DIII-D tiles after laboratory thermo-oxidation experiments
by B.W.N. Fitzpatrick, J.W. Davis, A.A. Haasz
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- 31 January 2012
- Published by Elsevier in Journal of Nuclear Materials
Uptake of deuterium in partially D-depleted residual codeposits left on DIII-D tiles after laboratory thermo-oxidation experiments
by B.W.N. Fitzpatrick, J.W. Davis, A.A. Haasz
Cited by 1
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Cited by 8
- 15 June 2009
- Published by Elsevier in Journal of Nuclear Materials
Thermo-oxidation and analysis of JET codeposits
by A.A. Haasz, J. Likonen, J.P. Coad, C.K. Tsui, J.W. Davis, A.M. Widdowson
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- 15 June 2009
- Published by Elsevier in Journal of Nuclear Materials
Thermo-oxidation and analysis of JET codeposits
by A.A. Haasz, J. Likonen, J.P. Coad, C.K. Tsui, J.W. Davis, A.M. Widdowson
Cited by 8
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Cited by 36
- 1 March 2005
- Published by Elsevier in Journal of Nuclear Materials
Effects of background gas impurities during D+ irradiation on D trapping in single crystal tungsten
by M. Poon, R.G. Macaulay-Newcombe, J.W. Davis, A.A. Haasz
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- 1 March 2005
- Published by Elsevier in Journal of Nuclear Materials
Effects of background gas impurities during D+ irradiation on D trapping in single crystal tungsten
by M. Poon, R.G. Macaulay-Newcombe, J.W. Davis, A.A. Haasz
Cited by 36
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Cited by 5
- 25 January 2005
- Published by Elsevier in Journal of Nuclear Materials
Low-energy tritium ion erosion of graphite
by R.G. Macaulay-Newcombe, A.A. Haasz, J.W. Davis
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- 25 January 2005
- Published by Elsevier in Journal of Nuclear Materials
Low-energy tritium ion erosion of graphite
by R.G. Macaulay-Newcombe, A.A. Haasz, J.W. Davis
Cited by 5
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Cited by 3
- 1 January 2005
- Published by Springer Nature
Hydrogen Retention in and Release from Carbon Materials
by A.A. Haasz, J.W. Davis
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- 1 January 2005
- Published by Springer Nature
Hydrogen Retention in and Release from Carbon Materials
by A.A. Haasz, J.W. Davis
Cited by 3
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Cited by 2
- 1 May 2004
- Published by Elsevier in Journal of Nuclear Materials
W erosion due to low energy O+ and D+ impact
by R.G Macaulay-Newcombe, A.A Haasz, C.H Wu, J.W Davis
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- 1 May 2004
- Published by Elsevier in Journal of Nuclear Materials
W erosion due to low energy O+ and D+ impact
by R.G Macaulay-Newcombe, A.A Haasz, C.H Wu, J.W Davis
Cited by 2
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Cited by 2
- 1 August 2003
- Published by AIP Publishing in Journal of Applied Physics
Two-region model of CH4, CO, CO2, and H2O formation in graphite due to simultaneous irradiation by O+ and H+
by Allen Y. K. Chen, A. A. Haasz, J. W. Davis
Based on our experimental studies of the simultaneous $O^{+}$ and $H^{+}$ irradiation of graphite, symbolically represented as the $O^{+} - H^{+} \to C$ reaction system, we have developed a semiempirical kinetic model for describing the reactions leading to the formation of the reaction products ${CH}_{4},$ CO, ${CO}_{2},$ and $H_{2} O .$ The model builds on previously proposed concepts for methane formation via intermediate precursor generation and a “two-region” description of the graphite microstructure. These concepts have been extended to include intermediate precursor-containing steps for the formation of CO, ${CO}_{2},$ and $H_{2} O,$ and the breakup of ${CH}_{4}$ by the incident ions. Model predictions of the flux and energy dependence of the ${CH}_{4},$ CO, and ${CO}_{2}$ yields were generally in good agreement with experimental results for the $H^{+} \to C$ and $O^{+} \to C$ reactions. For the $O^{+} - H^{+} \to C$ reaction, the model agrees quite well with the flux ratio dependence of the $H_{2} O$ yield and the corresponding reductions in the CO, ${CO}_{2},$ and ${CH}_{4}$ yields.
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- 1 August 2003
- Published by AIP Publishing in Journal of Applied Physics
Two-region model of CH4, CO, CO2, and H2O formation in graphite due to simultaneous irradiation by O+ and H+
by Allen Y. K. Chen, A. A. Haasz, J. W. Davis
Based on our experimental studies of the simultaneous $O^{+}$ and $H^{+}$ irradiation of graphite, symbolically represented as the $O^{+} - H^{+} \to C$ reaction system, we have developed a semiempirical kinetic model for describing the reactions leading to the formation of the reaction products ${CH}_{4},$ CO, ${CO}_{2},$ and $H_{2} O .$ The model builds on previously proposed concepts for methane formation via intermediate precursor generation and a “two-region” description of the graphite microstructure. These concepts have been extended to include intermediate precursor-containing steps for the formation of CO, ${CO}_{2},$ and $H_{2} O,$ and the breakup of ${CH}_{4}$ by the incident ions. Model predictions of the flux and energy dependence of the ${CH}_{4},$ CO, and ${CO}_{2}$ yields were generally in good agreement with experimental results for the $H^{+} \to C$ and $O^{+} \to C$ reactions. For the $O^{+} - H^{+} \to C$ reaction, the model agrees quite well with the flux ratio dependence of the $H_{2} O$ yield and the corresponding reductions in the CO, ${CO}_{2},$ and ${CH}_{4}$ yields.
Cited by 2
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Cited by 12
- 1 September 1997
- Published by Elsevier in Journal of Nuclear Materials
Carbon chemistry due to combined H+ and O+ irradiation
by A.A. Haasz, Allen Y.K. Chen, J.W. Davis, E. Vietzke
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- 1 September 1997
- Published by Elsevier in Journal of Nuclear Materials
Carbon chemistry due to combined H+ and O+ irradiation
by A.A. Haasz, Allen Y.K. Chen, J.W. Davis, E. Vietzke
Cited by 12
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Cited by 17
- 1 March 1997
- Published by IOP Publishing in Nuclear Fusion
Deuterium-tritium results of TFTR's alpha collector
by H.W Herrmann, S.J Zweben, D.S Darrow, J.R Timberlake, G.P Chong, A.A Haasz, C.S Pitcher, R.G Macaulay-Newcombe
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- 1 March 1997
- Published by IOP Publishing in Nuclear Fusion
Deuterium-tritium results of TFTR's alpha collector
by H.W Herrmann, S.J Zweben, D.S Darrow, J.R Timberlake, G.P Chong, A.A Haasz, C.S Pitcher, R.G Macaulay-Newcombe
Cited by 17

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