Impedance-matching system for a flexible surface-coil-type resonator

Hirata, Hiroshi; Ono, Mutsuhiro
September 1997
Review of Scientific Instruments;Sep97, Vol. 68 Issue 9, p3528
Academic Journal
Describes an impedance-matching system for a flexible surface-coil-type resonator used in electron paramagnetic resonance experiments. Matching system using varicap diodes; Equivalent circuit and input impedance of a flexible surface-coil-type resonator; Formulation of the input impedance.


Related Articles

  • Control of multipolar electron cyclotron resonance discharges using internal cavity impedance matchinga). Asmussen, J.; Mak, P. // Review of Scientific Instruments;May94, Vol. 65 Issue 5, p1753 

    Recently, electron cyclotron resonance (ECR) discharges have been successfully applied to numerous ion source applications. These range from accelerator to etching and thin film deposition applications, and have strong potentiaI for application in several commercial/industrial processes. Thus,...

  • Force-detected magnetic resonance in a field gradient of 250 000 Tesla per meter. Bruland, K. J.; Dougherty, W. M.; Garbini, J. L.; Sidles, J. A.; Chao, S. H. // Applied Physics Letters;11/23/1998, Vol. 73 Issue 21 

    We report the detection of slice-selective electron spin resonance with an external magnetic field gradient comparable to local interatomic gradients, using the techniques of magnetic resonance force microscopy. An applied microwave field modulated the spin-gradient force between a paramagnetic...

  • A flexible surface-coil-type resonator using triaxial cable. Hirata, Hiroshi; Ono, Mitsuhiro // Review of Scientific Instruments;Sep97, Vol. 68 Issue 9, p3595 

    Describes a flexible surface-coil-type resonator (FSCR) used for electron paramagnetic resonance (EPR) measurements. Use of triaxial cable to avoid anisotropy of flexure of the transmission line; Strength of the EPR signal measured with the triaxial FSCR as compared to the ones measured with...

  • Continuous and stopped flow EPR spectrometer based on a loop gap resonator. Hubbell, Wayne L.; Froncisz, Wojciech; Hyde, James S. // Review of Scientific Instruments;Oct87, Vol. 58 Issue 10, p1879 

    A continuous and stopped flow EPR spectrometer based on a new loop gap resonator operating at X band is described. The important features of the instrument are: (1) very small amounts of material are consumed in both stopped and continuous flow modes of operation, (2) dead times on the order of...

  • Electron spin relaxation rates T[sub 1][sup -1] and T[sub 2][sup -1] in diluted solid N@C[sub 60]. Knorr, S.; Grupp, A.; Mehring, M.; Waiblinger, M.; Weidinger, A. // AIP Conference Proceedings;2000, Vol. 544 Issue 1, p191 

    We report on pulsed electron-spin-resonance (ESR) investigations of endohedral N@C[sub 60]. The measurements were performed in X band (9.5 GHz) and W band (94 GHz). Applying a two-pulse sequence with a variable flip angle of the second pulse, we could not only separate the contributions of the...

  • Permeability of the Fullerene Cage of Endometallofullerene for Electron Spin Density. Koltover, V. K.; Parnyuk, T. A.; Bubnov, V. P.; Davydov, R. M. // Doklady Physics;May2002, Vol. 47 Issue 5, p329 

    Examines the permeability of the fullerene cage of endometallofullerene for electron spin density. Electron paramagnetic resonance of fullerene; Q-band spectra of fullerene in a polycarbonate film.

  • A new ultra low-field ESR spectrometer. Duret, D.; Beranger, M.; Moussavi, M.; Turek, P.; Andre, J. J. // Review of Scientific Instruments;Mar91, Vol. 62 Issue 3, p685 

    A CW electron spin resonance (ESR) spectrometer working at earth-field is described for the first time. The optimized sensitivity has allowed to reduce the size of the sample holder down to 100 mm³, a low value for such a low working frequency (1.845 MHz). At this frequency, only narrow ESR...

  • Computer controlled in situ radiolysis electron spin resonance spectrometer incorporating magnetic field-microwave frequency locking. Madden, Keith P.; McManus, Hugh J. D.; Fessenden, Richard W. // Review of Scientific Instruments;Jan1994, Vol. 65 Issue 1, p49 

    A lab-built personal computer-based electron spin resonance (ESR) spectrometer is described which incorporates a wide range magnetic field/microwave frequency lock as part of its magnetic field control subsystem. Instrument operation is accomplished by keyboard commands, with important...

  • Transport properties of microcrystalline silicon at low temperatures. Zhou, J.-H.; Baranovskii, S. D.; Yamasaki, S.; Ikuta, K.; Kondo, M.; Matsuda, A.; Tanaka, K. // Semiconductors;Aug98, Vol. 32 Issue 8, p807 

    The dark conductivity and photoconductivity along with pulsed electron spin resonance have been measured over a wide temperature range with a high crystallinity hydrogenated microcrystalline silicon (µc-Si : H) sample. The transport mechanism in µc-Si : H is discussed on the basis of these...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics