Zobrazeno 1 - 10
of 41
pro vyhledávání: '"S. T. Islander"'
Autor:
A. Sarjala, S. T. Islander, H. Seppala, S. A. Nenonen, H. Collan, J. Pekola, Olli Ikkala, E. Friman
Publikováno v:
IEEE Transactions on Magnetics. 28:637-640
A superconducting magnet aimed at whole body MRI (magnetic resonance imaging) and spectroscopic studies was designed, constructed, and tested. The magnet was wound with a 2-mm-diameter NbTi/Cu multifilamentary composite conductor. The design field wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23f978dd73969a8b87ad0ad4efbd6a30
https://doi.org/10.1109/20.119958
https://doi.org/10.1109/20.119958
Publikováno v:
Cryogenics. 20:277-282
The nuclear spin-lattice relaxation times for the tin isotopes Sn117 and Sn119 have been measured in the temperature range between 20 and 50 mK with a SQUID magnetometer by watching the longitudinal magnetization of the nuclear spins after the applic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3df0b8001740470f1774ba56d53b77ba
https://doi.org/10.1016/0011-2275(80)90053-3
https://doi.org/10.1016/0011-2275(80)90053-3
Autor:
S. T. Islander, J. S. Tsakadze, Pertti Hakonen, Olli Ikkala, Grigory Volovik, K. M. Saloheimo, P. Roubeau, T. K. Markkula, D. I. Garibashvili, O. V. Lounasmaa, E. L. Andronikashvili
Publikováno v:
Physical Review Letters. 48:1838-1841
Experiments on rotating superfluid $^{3}\mathrm{He}$-$A$ in an open cylindrical geometry show a change in the NMR line shape as a result of rotation: The amplitude of the peak decreases in proportion to $f(T)g(\ensuremath{\Omega})$, where $\ensuremat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::136a969fe8ab670cc3fec305c96a60bc
https://doi.org/10.1103/physrevlett.48.1838
https://doi.org/10.1103/physrevlett.48.1838
Publikováno v:
Journal of Physics E: Scientific Instruments. 12:381-386
A parametric preamplifier of the up-converting type is described for use with SQUIDS. The amplifier works in a self-oscillatory mode. The theory of its operation, including equations for gain and noise properties, is presented. The design and perform
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26353b82aeaecb990ce4a596466c3ccf
https://doi.org/10.1088/0022-3735/12/5/014
https://doi.org/10.1088/0022-3735/12/5/014
Publikováno v:
Journal of Low Temperature Physics. 53:425-476
We have constructed a rotating nuclear demagnetization cryostat and used it for continuous-wave NMR experiments on superfluid3He-A and3He-B. The measurements were performed in a long cylindrical geometry of 5 mm diameter, with the cylinder axis paral
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28c8e2f427837d69685ca4b5afd5ec14
https://doi.org/10.1007/bf00682488
https://doi.org/10.1007/bf00682488
Publikováno v:
Physical Review Letters. 49:1258-1261
A satellite peak has been observed in the NMR spectrum of rotating /sup 3/He-A; the peak intensity depends linearly on ..cap omega.. at the high angular velocities, ..cap omega.. = 0.6--1.5 rad/s, needed to resolve it. The frequency shift of the sate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19f7d117ec94a152eff9468310437379
https://doi.org/10.1103/physrevlett.49.1258
https://doi.org/10.1103/physrevlett.49.1258
Autor:
Pertti Hakonen, D. I. Garibashvili, Olli Ikkala, J. S. Tsakadze, T. K. Markkula, S. T. Islander, P. Roubeau, K. M. Saloheimo
Publikováno v:
Cryogenics. 23:243-250
A nuclear demagnetization cryostat, capable of producing submillikelvin temperatures during rotational motion, was constructed. The apparatus has been used for NMR experiments on superfluid He 3 at angular velocities up to 1.5 rad s −1 . The essent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4fbda53372ffcf219db959022bac4d5
https://doi.org/10.1016/0011-2275(83)90144-3
https://doi.org/10.1016/0011-2275(83)90144-3
Autor:
S. T. Islander, P. Östman
Publikováno v:
Cryogenics. 18:614-616
The cold-absorber Sn 119 Mossbauer effect thermometer discussed by Parshin et al, has been compared with the steady-field Cu nuclear magnetic susceptibility thermometer. The Curie constant of the Cu thermometer was also determined from simultaneous m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc9644527c608f4b4d321ff018f32923
https://doi.org/10.1016/0011-2275(78)90190-x
https://doi.org/10.1016/0011-2275(78)90190-x
Publikováno v:
Magnetic Resonance and Related Phenomena ISBN: 9783642813467
We have constructed two thermometers which employ SQUID magnetometers developed earlier by us /1/. The SQUID NMR thermometer has been used to measure the spin-lattice relaxation time τ1 in tin. Simultaneously, the thermal noise voltage generated in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d70c1b66f1ba6d046123e3f502af8abb
https://doi.org/10.1007/978-3-642-81344-3_371
https://doi.org/10.1007/978-3-642-81344-3_371
Autor:
W. Zimmermann, S. T. Islander
Publikováno v:
Low Temperature Physics-LT 13 ISBN: 9781468478662
In a recent publication we presented the results of some measurements of the specific heat of liquid 3He/4He mixtures at saturated vapor pressure near the interesting junction of the lambda and phase-separation curves which occurs at a temperature T0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0eddd32d898838412baa45dfc0e9535a
https://doi.org/10.1007/978-1-4684-7864-8_118
https://doi.org/10.1007/978-1-4684-7864-8_118