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  • Articles  (56)
  • Superconducting devices  (45)
  • 33  (11)
  • Springer  (56)
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  • American Chemical Society (ACS)
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  • National Academy of Sciences
  • 2015-2019
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  • 1980-1984  (56)
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  • 1983  (56)
  • Physics  (56)
  • Process Engineering, Biotechnology, Nutrition Technology
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  • Articles  (56)
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  • Springer  (56)
  • American Chemical Society
  • American Chemical Society (ACS)
  • American Geophysical Union
  • National Academy of Sciences
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  • 2015-2019
  • 2005-2009
  • 1990-1994
  • 1980-1984  (56)
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  • Physics  (56)
  • Process Engineering, Biotechnology, Nutrition Technology
  • 1
    Electronic Resource
    Electronic Resource
    Instrumentation for biomagnetism (1983)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 2 (1983), S. 123-141 
    Details
    ISSN: 0392-6737
    Keywords: Biomagnetism (including magnetocardiography) ; Superconducting devices ; superconducting magnets
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Si riesamina la strumentalizzazione adatta all’acquisizione di segnali biomagnetici. Si studiano separatamente i componenti di base del magnetometro, cioè gli SQUID, i trasformatori di flusso e i dewar. Si discutono i possibili miglioramenti alla strumentazione attuale e alle apparecchiature complete comprendenti scudi ferromagnetici o di correnti a vortice e si valuta la loro efficenza.
    Notes: Summary The instrumentation suitable for the acquisition of biomagnetic signals is reviewed. The basic magnetometer components,i.e. SQUIDs, flux transformers and dewars, are studied separately. Possible improvements to the present instrumentation as well as complete set-ups including ferromagnetic or eddy current shields are discussed and their efficiency evaluated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02455917
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  • 2
    Electronic Resource
    Electronic Resource
    First-gradient balancing of higher-order gradiometers (1983)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 2 (1983), S. 142-152 
    Details
    ISSN: 0392-6737
    Keywords: Biomagnetism (including magnetocardiography) ; Superconducting devices ; superconducting magnets
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Si sviluppa un formalismo per la descrizione vettoriale e tensoriale di una procedura di bilanciamento e si sottolinea un metodo di bilanciamento di campo e di primo gradiente. Si discutono l’apparecchiatura sperimentale e le misurazioni del vettore di modo comune del primo gradienteC G 1.
    Notes: Summary A formalism for the vector and tensor description of a balancing procedure is developed and a first-gradient and field-balancing method is outlined. The experimental apparatus and measurements of the first-gradient common-mode vector,C G 1, are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02455918
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  • 3
    Electronic Resource
    Electronic Resource
    New FIR laser lines from optically pumped DCOF (1983)
    Springer
    Applied physics 30 (1983), S. 1-4 
    Details
    ISSN: 1432-0649
    Keywords: 33 ; 42.55
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Twenty FIR laser lines with wavelengths between 146 and 2000 μm have been observed from deuterated formyl fluoride (DCOF) optically pumped with isotopic CO2 lasers. Tunable diode laser measurements on thev 4 band of DCOF were combined with earlier high precision spectroscopic data on thev 3 andv 4 bands, and enabled identification of the transitions responsible for 9 of the new FIR lines.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00692650
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  • 4
    Electronic Resource
    Electronic Resource
    Energy efficiency in the multi-stage laser separation of13C by an elimination method (1983)
    Springer
    Applied physics 30 (1983), S. 143-148 
    Details
    ISSN: 1432-0649
    Keywords: 33
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Energy efficiency has been discussed in the multi-stage laser separation of13C in the ir laser photolysis of CF3I. The comparison has been made between the two methods, i.e., the photolysis of13C molecules (ordinary method) and the photolysis of12C molecules (elimination method). The former recycles the photolyzed product after the regeneration of feed molecules, while the latter recycles the residue after the elimination of the photolyzed product. The analysis of the energy consumption using theoretical models has shown that the elimination method consumes more energy, but the difference is far less than expected; the overall energy consumption may reach the same level at a lower pressure according to our estimation which includes the factors of the quantum efficiency for the dissociation, the energy difference between the laser lines and the material loss for the regeneration. It may imply that the elimination method is more favored in a practical application because it is free from the regeneration procedure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00695469
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  • 5
    Electronic Resource
    Electronic Resource
    The effect of added nitrogen on multiphoton absorption by ammonia (1983)
    Springer
    Applied physics 32 (1983), S. 75-78 
    Details
    ISSN: 1432-0649
    Keywords: 33 ; 34 ; 42.55
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Multiphoton absorption (MPA) of the CO2 laser 9 μmR(30) line (pulse width 60 ns, FWHM) by NH3 and NH3/N2 mixtures was studied as a function of gas composition, pressure and laser fluence (Φ). MPA occurs for Φ smaller than those that have been used for optically pumped NH3/N2 lasers; consequently a simple two-level absorption model will not adequately describe laser action in these systems. The photon energy deposited in NH3/N2 mixtures can be calculated from the MPA cross-section and the fluence dependence of the illumination geometry. An examination of the efficiency of conversion of this absorbed energy to the reported radiant energy of optically pumped NH3/N2 lasers shows an optimum value which depends on pressure, and gas composition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688546
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  • 6
    Electronic Resource
    Electronic Resource
    The vibrational relaxation time constant for theB v=0 level of XeCl (1983)
    Springer
    Applied physics 32 (1983), S. 193-198 
    Details
    ISSN: 1432-0649
    Keywords: 42.55 ; 33 ; 82.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The vibrational relaxation time constant for theB v=0 vibrational level of XeCl* has been investigated by observing the coupling between theB v=1 andB v=0 vibrational levels under saturated lasing conditions. Based on this observation, estimates of the expected extraction efficiency from theB-state have been made.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688287
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  • 7
    Electronic Resource
    Electronic Resource
    Dressed-atom approach for probe spectroscopy in Doppler-broadened three-level systems with standing-wave saturator (1983)
    Springer
    Applied physics 31 (1983), S. 115-129 
    Details
    ISSN: 1432-0649
    Keywords: 42.50 ; 42.65 ; 33
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The three-level probe spectroscopy of Doppler-broadened transitions in the presence of a standing wave pump laser is investigated through a diagrammatic method. A probe-response diagram is defined where the resonance positions versus the probe laser frequency and absorber velocity are plotted. The dressed atom description provides a convenient method for deriving the probe response diagram and calculating the position of the Doppler-free structures on the absorption spectrum, including the ac Stark shifts. We have interpreted probe spectra on the basis of the probe response diagram, presenting new features and giving a detailed physical interpretation of all the coherent effects appearing in the spectra. Population effects are not included in the dressed system analysis and are calculated on the basis of a semiclassical treatment, but the probe response diagram provides a complete interpretation of the involved phenomena.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00702607
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  • 8
    Electronic Resource
    Electronic Resource
    Multistep ionization of CS2 vapour (1983)
    Springer
    Applied physics 31 (1983), S. 153-155 
    Details
    ISSN: 1432-0649
    Keywords: 33 ; 42.65
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We report on the multistep ionization process observed in CS2 vapour irradiated by 337 nm nitrogen laser light. We propose and discuss a model in which optical as well as collisional excitation are involved in the ionization process.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688836
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  • 9
    Electronic Resource
    Electronic Resource
    A broadband mid-infrared laser magnetic resonance spectrometer for the spectral range of 1200–2000 wavenumbers (1983)
    Springer
    Applied physics 31 (1983), S. 139-144 
    Details
    ISSN: 1432-0649
    Keywords: 33 ; 55
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A broadband mid-infrared laser magnetic resonance spectrometer is described, which can be operated in intracavity or extracavity configuration. The specially designed CO-laser gain tube allows operation from 1220–2000 cm−1. Experimental details and examples of spectroscopic applications are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688834
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  • 10
    Electronic Resource
    Electronic Resource
    Strong dependence of ir multiphoton absorption and dissociation yield of SF6 molecule on intensity (duration) of exciting laser pulse (1983)
    Springer
    Applied physics 30 (1983), S. 207-210 
    Details
    ISSN: 1432-0649
    Keywords: 33 ; 82.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The role of played by the intensity of the exciting TEA CO2 laser pulses in the processes of ir multiphoton absorption (MPA) of SF6 molecules cooled toT R≃40 K andT v≃160 K in a pulsed supersonic jet and the dissociation of SF6 in a bulk atT≃300 K under essentially collisionless conditions have been investigated. A strong dependence of MPA and the dissociation yield on pulse intensity were observed. The frequency dependences of the intensity effects were studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688408
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