Zobrazeno 1 - 10
of 25
pro vyhledávání: '"W. van Toledo"'
Autor:
P. H. M. Vaessen, W. van Toledo
Publikováno v:
Physics of Plasmas. 2:167-170
A possible new driving mechanism for poloidal plasma rotation in the scrape‐off layer (SOL) of a tokamak is proposed. This driving mechanism results from charge exchange between ‘‘cold’’ hydrogen atoms from the wall and ‘‘hot’’ plas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4dd46125e268e86af13446213331f5e2
https://doi.org/10.1063/1.871447
https://doi.org/10.1063/1.871447
Autor:
A.J.T. Holmes, C M O Mahony, M. Inman, A. Malaquias, A Praxedes, W. Van Toledo, C.A.F. Varandas, O.J. Hancock, J. A. C. Cabral
Publikováno v:
Plasma Sources Science and Technology. 3:1-9
A new type of high-density caesium plasma ion source is described, which is capable of producing Cs+ beam currents of up to 300 mu A. The ion emitting surface in the caesium plasma conforms automatically to the accelerator geometry to give perveance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::571a4096d0efd6fd1ccc081244097567
https://doi.org/10.1088/0963-0252/3/1/001
https://doi.org/10.1088/0963-0252/3/1/001
Publikováno v:
IEEE Transactions on Plasma Science. 22:350-358
In this paper we describe the heavy ion beam diagnostic for the tokamak ISTTOK, which has been designed to determine the temporal evolution of the plasma density, poloidal magnetic field and plasma potential profiles. This diagnostic makes use of a n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a29767e84e4ce4bec45ac1e8963ea70
https://doi.org/10.1109/27.310640
https://doi.org/10.1109/27.310640
Publikováno v:
Measurement Science & Technology, 3, 471-474
A fast shutter valve, designed for operation in high-vacuum plasma physics experiments, is described. By electromagnetically induced movement of the shutter blade, opening and shutting times of the order of 10 ms have been achieved. The results of te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1bcec494ad5882dc90a856a46e821f0b
https://www.differ.nl/bibcite/reference/5532
https://www.differ.nl/bibcite/reference/5532
Publikováno v:
Review of Scientific Instruments, 63, 2223-2231
A time‐of‐flight spectrometer has been developed to examine the velocity distribution of the hydrogen charge‐exchange particles emitted from the TORTUR tokamak. To investigate the scrape‐off layer, the spectrometer has been made sensitive to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a55c4577dc560e12067bc4bcb5c67df4
https://doi.org/10.1063/1.1143143
https://doi.org/10.1063/1.1143143
Publikováno v:
Review of Scientific Instruments, 61, 622-624
This article deals with an application of the technique of converting hydrogen atoms into negative ions on a low‐work‐function surface, which is similar to the method nowadays utilized in H− surface sources. This conversion technique is the bas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f16414d642aabca07deb5ec8012870d
https://www.differ.nl/bibcite/reference/5456
https://www.differ.nl/bibcite/reference/5456
Publikováno v:
Physics Letters A. 119:126-129
Formation of negative hydrogen ions by scattering of protons from a cesiated tungsten (110) surface has been studied in the incident energy range from 15 to 500 eV. From the results a new type of diagnostic for studying the plasma boundry is proposed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f30b331b6100ccdef58b58015689babc
https://doi.org/10.1016/0375-9601(86)90429-9
https://doi.org/10.1016/0375-9601(86)90429-9
Autor:
C.H.M. Meyer, W. van Toledo, P. Box, J.C.M. Sprenkels, W.Th. Wenckebach, J.C. Voorhoeve, L. Korstanje, G.D.F. van Velzen
Publikováno v:
Physica B+C. 145:101-110
In a previous paper we have calculated the theoretical temperature and angular dependence of the electron spin-lattice relaxation rate due to Raman processes for diatomic molecules. In this paper it is shown that these processes caused by normal latt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::142901f3f6a33473f9ae035dda8bab28
https://doi.org/10.1016/0378-4363(87)90071-4
https://doi.org/10.1016/0378-4363(87)90071-4
Autor:
J P Santana, J. M. Dias, S. Vergamota, Amílcar Soares, J.A.C. Cabral, J. T. Mendonça, A. Silva, P. Varela, A. Malaquias, F. Serra, C. Correia, A. Praxedes, Pedro Amorim, Maria Luísa Carvalho, W. van Toledo, C. J. Freitas, L. Cupido, Horacio Fernandes, M. Manso, P. H. M. Vaessen, C.A.F. Varandas, B. de Groot, João M. C. Sousa, Bernardo B. Carvalho, M. P. Alonso, S. Magalhães
Publikováno v:
ResearcherID
CIÊNCIAVITAE
CIÊNCIAVITAE
The first Portuguese magnetic confinement experiment, the tokamak ISTTOK, has been in operation since 1993. This tokamak device is described and the main technological features, as well as the nove...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67868a9975832e97c3d7199294ed0d1d
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:A1996TM04200007&KeyUID=WOS:A1996TM04200007
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:A1996TM04200007&KeyUID=WOS:A1996TM04200007
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