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2002
Studies of impurity deposition/implantation in JET divertor tiles using SIMS and ion beam techniques
Likonen, J., Lehto, S., Coad, J., Renvall, T., Ahlgren, T., Hole, D., Matthews, G., Zastrow, K-D., Lawson, K. & Programme, C. T. T. EFDA-JET. W., 2002, 22nd Symposium on Fusion Technology: Book of Abstracts. Espoo: VTT Technical Research Centre of Finland, p. 172-172 BO-4. (VTT Symposium; No. 220).Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Scientific
Open Access
tiles
secondary ion mass spectrometry
implantation
ion beams
impurities
26
Citations
(Scopus)
The formation and evolution of extreme shear reversal in JET and its influence on local thermal transport
Hawkes, N., Andrew, Y., Challis, C., DeAngelis, R., Drozdov, V., Hobirk, J., Joffrin, E., Lotte, P., Mazon, D., Rachlew, E., Reyes-Cortes, S., Sattin, F., Solano, E., Stratton, B., Tala, T., Valisa, M. & Programme, C. T. T. EFDA-JET. W., 2002, In : Plasma Physics and Controlled Fusion. 44, 7, p. 1105-1125Research output: Contribution to journal › Article › Scientific › peer-review
shear
Heating
heating
Current density
Plasmas
Transient behaviour of high burnup fuel (KOTO): Coupling of FRAPTRAN Fuel Rod for Transient Analysis with GENFLO Thermal Hydraulic Code (KOTO & READY)
Stengård, J-O., Hämäläinen, A. & Miettinen, J., 2002, FINNUS: The Finnish Research Programme on Nuclear Power Plant Safety 1999-2002: Final Report. Espoo: VTT Technical Research Centre of Finland, p. 104-111 (VTT Tiedotteita - Research Notes; No. 2164).Research output: Chapter in Book/Report/Conference proceeding › Chapter or book article › Professional
Open Access
Transient analysis
Hydraulics
Loss of coolant accidents
Boiling water reactors
Hydraulic models
Transport barrier and current profile studies on the JET Tokamak: Dissertation
Tala, T., 2002, Espoo: VTT Technical Research Centre of Finland. 173 p.Research output: Thesis › Dissertation › Collection of Articles
Open Access
Joint European Torus
profiles
current density
fusion
turbulence
Tritium related studies at the JET facilities
Lässer, R., Bekris, N., Bell, A., Brennan, D., Caldwell-Nichols, C., Cristescu, I., Ciattaglia, S., Coad, P., Day, C., Glugla, M., Likonen, J., Murdoch, D., Rosanvallon, S. & Scaffidi-Argentina, F., 2002, 22nd Symposium on Fusion Technology: Book of Abstracts. Espoo: VTT Technical Research Centre of Finland, p. 124-124 G-22. (VTT Symposium; No. 220).Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Scientific
Open Access
tritium
flakes
gases
water
fusion
Tungsten coating on jet mk IIGB-SRP divertor tiles
Lehto, S., Likonen, J., Coad, J. P., Ahlgren, T., Hole, D. E., Mayer, M. & Kolehmainen, J., 2002, 22nd Symposium on Fusion Technology: Book of Abstracts. Espoo: VTT Technical Research Centre of Finland, p. 50-50 B-8. (VTT Symposium; No. 220).Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Scientific
Open Access
tiles
tungsten
coatings
chlorofluorocarbons
scattering
Ultrasonic studies on iter divertor and first wall prototype modules
Pitkänen, J., Kauppinen, P., Jeskanen, H., Tähtinen, S. & Sandlin, S., 2002, 22nd Symposium on Fusion Technology: Book of Abstracts. Espoo: VTT Technical Research Centre of Finland, p. 78-78 B-36. (VTT Symposium; No. 220).Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Scientific
Open Access
modules
ultrasonics
prototypes
manufacturing
integrity
2001
Correlation between magnetic shear and ExB flow shearing rate in JET ITB discharges
Esposito, B., Baranov, Y., Crisanti, F., Maget, P., Parail, V., Becoulet, A., Budny, R., Castaldo, C., Challis, C., De Angelis, R., Giroud, C., Hawkes, N., Tala, T., Zastrow, K. & Programme, C. T. T. EFDA-JET. W., 2001, In : Europhysics Conference Abstracts. 25A, p. 553-556Research output: Contribution to journal › Article in a proceedings journal › Scientific
Open Access
1
Citation
(Scopus)
Dielectric window for reactor like ICRF vacuum transmission line
Heikinheimo, L., Linden, J., Kaye, A., Orivuori, S., Saarelma, S., Tähtinen, S., Walton, R., Wasastjerna, F. & Heikkinen, J. A., 2001, In : Fusion Engineering and Design. 55, 4, p. 419-436 18 p.Research output: Contribution to journal › Article › Scientific › peer-review
Cyclotron resonance
Beryllia
Electric lines
Alumina
Vacuum
25
Citations
(Scopus)
European achievements for ITER high heat flux components
Merola, M., Vieider, G., Bet, Vastra, I. B., Briottet, L., Chappuis, P., Cheyne, K., Dell'Orco, G., Duglué, D., Duwe, R., Erskine, S., Escourbiac, F., Fèbvre, M., Grattarola, M., Moreschi, F., Orsinini, A., Pamato, R., Petrizzi, L., Plöchl, L., Riccardi, B. & 9 others, , 2001, In : Fusion Engineering and Design. 56-57, p. 173-178 6 p.Research output: Contribution to journal › Article › Scientific › peer-review
Heat flux
Beryllium
Limiters
Carbon fibers
Tungsten
Extreme shear reversal in JET discharges
Hawkes, N., Stratton, B., Baranov, Y., Bolzonella, T., Challis, C., Cortes, S., DeAngelis, R., Gowers, C., Hennequin, P., Joffrin, E., Lotte, P., Mailloux, J., Mazon, D., Parail, V., Prentice, R., Rachlew, E., Solano, E. & Tala, T., 2001, In : Europhysics Conference Abstracts. 25A, p. 5-8Research output: Contribution to journal › Article in a proceedings journal › Scientific
Open Access
7
Citations
(Scopus)
Fast tree multigrid transport application for the simplified P3 approximation
Kotiluoto, P., 1 Jul 2001, In : Nuclear Science and Engineering. 138, 3, p. 269-278 10 p.Research output: Contribution to journal › Article › Scientific › peer-review
Neutrons
Neutron flux
Pressurized water reactors
Pressure vessels
Computer aided design
ICRF current drive experiments on JET
Nguyen, F., Noterdame, J., Mayoral, M., Hellsten, T., Mantsinen, M., Hartmann, D., de Angelis, R., de Baar, M., Eriksson, L., van Eester, D., Gondhalekar, A., Hawkes, N., Johnson, T., Lamalle, P., Lotte, P., Meo, F., Panaccione, L., Pequet, A., Podda, S., Righi, E. & 5 others, , 2001, In : Europhysics Conference Abstracts. 25A, p. 781-784Research output: Contribution to journal › Article in a proceedings journal › Scientific
Open Access
81
Citations
(Scopus)
ITB formation in terms of wExB flow shear and magnetic shear s on JET
Tala, T., Heikkinen, J. & Parail, V., 2001, In : Plasma Physics and Controlled Fusion. 43, 4, p. 507-523 17 p.Research output: Contribution to journal › Article › Scientific › peer-review
Shear flow
shear flow
shear
thresholds
Ions
107
Citations
(Scopus)
Observation of zero current density in the core of JET discharges with lower hybrid heating and current drive
Hawkes, N., Stratton, B., Tala, T., Challis, C., Conway, G., DeAngelis, R., Giroud, C., Hobirk, J., Joffrin, E., Lomas, P., Lotte, P., Mailloux, J., Rachlew, E., Reyes-Cortes, S., Solano, E. & Zastrow, K-D., 2001, In : Physical Review Letters. 87, 11, 115001.Research output: Contribution to journal › Article › Scientific › peer-review
current density
heating
shear
simulation
Use of lower hybrid current drive and heating in optimised shear plasmas in JET
Mailloux, J., Alper, B., Baranov, Y., Barbato, E., Becoulet, A., Cardinali, A., Castaldo, C., Cesario, R., Challis, C., Crisanti, F., de Baar, M., de Vries, P., Ekedahl, A., Gowers, C., Hawkes, N., Imbeaux, F., Joffrin, E., Litaudon, X., Mazon, D., Pericoli, V. & 6 others, , 2001, In : Europhysics Conference Abstracts. 25A, p. 793-796Research output: Contribution to journal › Article in a proceedings journal › Scientific
Open Access
2000
3
Citations
(Scopus)
Application of the internal friction method to studying microstructural effects in fusion materials
Tähtinen, S., Jagodzinski, Y., Tarasenko, A., Smouk, S. & Hänninen, H., 2000, In : Journal of Nuclear Materials. 283-287, Part 1, p. 255 - 258 4 p.Research output: Contribution to journal › Article › Scientific › peer-review
Internal friction
internal friction
Fusion reactions
fusion
Hydrogen
10
Citations
(Scopus)
Damage mechanisms and fracture toughness of GlidCop® CuAl25 IG0 copper alloy
Tähtinen, S., Laukkanen, A. & Singh, B., 2000, In : Journal of Nuclear Materials. 283-287, Part 2, p. 1028 - 1032 5 p.Research output: Contribution to journal › Article › Scientific › peer-review
copper alloys
Copper alloys
toughness
fracture strength
Fracture toughness
Development of a controlled-distance electrochemistry arrangement to be used in typical power plant environments
Bojinov, M., Laitinen, T., Moilanen, P., Mäkelä, K., Mäkelä, M., Saario, T. & Sirkiä, P., 2000, Espoo: VTT Technical Research Centre of Finland. 49 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 2039).Research output: Book/Report › Report
Open Access
Electrochemistry
Power plants
Electric resistance measurement
Electric contacts
Bellows
1
Citation
(Scopus)
Effect of neutron irradiation on mechanical properties of Cu/SS joints after single and multiple HIP cycles
Tähtinen, S., Singh, B. & Toft, P., 2000, In : Journal of Nuclear Materials. 283-287, Part 2, p. 1238 - 1242 5 p.Research output: Contribution to journal › Article › Scientific › peer-review
hot isostatic pressing
Hot isostatic pressing
Neutron irradiation
neutron irradiation
mechanical properties
ITB formation in terms of wExB flow shear and magnetic shear s on JET
Tala, T., Parail, V., Baranov, Y. F., Heikkinen, J. & Karttunen, S., 2000, In : Europhysics Conference Abstracts. 24BResearch output: Contribution to journal › Article in a proceedings journal › Scientific
Open Access
6
Citations
(Scopus)
Main achievements of the EU HT test programme of ITER primary wall small scale mock ups
Lorenzetto, P., Cardella, A., Chappuis, P., Daenner, W., Erskine, A., Febvre, M., Hofmann, G., Le Gallo, P., Stamm, H. & Tähtinen, S., 2000, In : Fusion Engineering and Design. 49-50, p. 263-268 6 p.Research output: Contribution to journal › Article › Scientific › peer-review
Mockups
Thermal fatigue
Alloy steel
Stainless steel
Beryllium
19
Citations
(Scopus)
Modelling of optimised shear scenarious with LHCD for high performance experiments on JET
Tala, T., Baranov, Y. F., Parail, V., Söldner, F., Taroni, A., Heikkinen, J. & Karttunen, S., 2000, In : Nuclear Fusion. 40, 9, p. 1635-1650 16 p.Research output: Contribution to journal › Article › Scientific › peer-review
shear
profiles
ray tracing
temperature profiles
fusion
1999
8
Citations
(Scopus)
Role of fast waves in the central deposition of lower hybrid power
Heikkinen, J., Tala, T., Pättikangas, T., Piliya, A., Saveljev, A. & Karttunen, S., 1999, In : Plasma Physics and Controlled Fusion. 41, p. 1231-1249 19 p.Research output: Contribution to journal › Article › Scientific › peer-review
1998
26
Citations
(Scopus)
Effect of neutron irradiation on fracture toughness behaviour of copper alloys
Tähtinen, S., Pyykkönen, M., Karjalainen-Roikonen, P., Singh, B. & Toft, P., 1998, In : Journal of Nuclear Materials. 258-263, Part 1, p. 1010-1014Research output: Contribution to journal › Article › Scientific › peer-review
copper alloys
Neutron irradiation
Copper alloys
neutron irradiation
fracture strength
2
Citations
(Scopus)
Effect of specimen type and size on fracture resistance curve determination of CuCrZr alloy
Karjalainen-Roikonen, P., Pyykkönen, M. & Tähtinen, S., 1998, In : Journal of Nuclear Materials. 258-263, Part 1, p. 462-465Research output: Contribution to journal › Article › Scientific › peer-review
fracture strength
Fracture toughness
curves
J integral
copper alloys
FFUSION research programme 1993 1998: Final report of the Finnish fusion research programme
Karttunen, S., Ahola, H., Dumbrajs, O., Halme, A., Heikkinen, J., Heikkinen, V., Keinonen, J., Korhonen, R., Kurki-Suonio, T., Likonen, J., Pättikangas, T., Salomaa, R., Siuko, M., Teuho, J., Tähtinen, S. & Wasastjerna, F., 1998, Espoo: VTT Technical Research Centre of Finland. 158 p. (VTT Publications; No. 368).Research output: Book/Report › Report
Open Access
research program
industry
engineering
physics
programme
Structural analysis of NPP components and structures
Saarenheimo, A., Keinänen, H. & Talja, H., 1998, RATU2: The Finnish Research Programme on the Structural Integrity of Nuclear Power Plants: Synthesis of achievements 1995-1998. Espoo: VTT Technical Research Centre of Finland, p. 195-219 (VTT Symposium; No. 190).Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
Open Access
Structural integrity
Structural analysis
Reinforced concrete
Pipe
Water hammer
1997
19
Citations
(Scopus)
Improvement of a-C:H film adhesion by intermediate layers and sputter cleaning procedures on stainless steel, alumina and cemented carbide
Ronkainen, H., Vihersalo, J., Varjus, S., Zilliacus, R., Ehrnsten, U. & Nenonen, P., 1997, In : Surface and Coatings Technology. 90, 3, p. 190 - 196 7 p.Research output: Contribution to journal › Article › Scientific › peer-review
Aluminum Oxide
Stainless Steel
carbides
cleaning
Carbides
6
Citations
(Scopus)
Matrix diffusion model - in situ tests using natural analogues: Dissertation
Rasilainen, K., 1997, Espoo: VTT Technical Research Centre of Finland. 86 p.Research output: Thesis › Dissertation › Collection of Articles
Open Access
natural analog
in situ test
matrix
boulder
uranium
1982
Soviteohjelma FID
Kuusela, M. & Vanttola, T., 1982, Espoo: VTT Technical Research Centre of Finland. 67 p. (Valtion teknillinen tutkimuskeskus. Tiedotteita; No. 154).Research output: Book/Report › Report