Results 171 to 180 of about 1,743 (212)
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Review of Scientific Instruments, 1979
A servo-polarimeter utilizing a rotating plastic film as a modulator has been modified to improve stability and sensitivity. The birefringence in a sample being scanned by moving it past a slit can now be determined to better than 3×10−9.
W, Primak, E, Monahan
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A servo-polarimeter utilizing a rotating plastic film as a modulator has been modified to improve stability and sensitivity. The birefringence in a sample being scanned by moving it past a slit can now be determined to better than 3×10−9.
W, Primak, E, Monahan
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A Photoelectric Skylight Polarimeter
Applied Optics, 1966A photoelectric skylight polarimeter to measure directly the Stokes parameters for plane polarized light is described. The basic principle of the instrument consists in the simultaneous measurement of the intensity of light (in the chosen spectral region) transmitted by polarizers oriented in four specific directions.
T A, Hariharan, Z, Sekera
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Journal of Scientific Instruments, 1950
The design of a photoelectric recording polarimeter using a cooled multiplier phototube and d.c. amplification is described. The extinction point of crossed Nicol prisms is recorded electronically for any desired wavelength. Continuous rotation through the extinction point is facilitated by synchronous motor drive for each wavelength.
D H Rank, John H Light, P R Yoder
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The design of a photoelectric recording polarimeter using a cooled multiplier phototube and d.c. amplification is described. The extinction point of crossed Nicol prisms is recorded electronically for any desired wavelength. Continuous rotation through the extinction point is facilitated by synchronous motor drive for each wavelength.
D H Rank, John H Light, P R Yoder
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Optics and Spectroscopy, 2014
A polarimeter for measuring complete state of polarization of light in a wide spectral range is investigated. The light beam to be analyzed propagates through a continuously rotating first-phase plate; then through a continuously rotating second-phase plate; and, passing through a stationary linear polarizer, is incident on a detector.
A. S. Gurevich +2 more
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A polarimeter for measuring complete state of polarization of light in a wide spectral range is investigated. The light beam to be analyzed propagates through a continuously rotating first-phase plate; then through a continuously rotating second-phase plate; and, passing through a stationary linear polarizer, is incident on a detector.
A. S. Gurevich +2 more
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The Extreme Polarimeter (ExPo): design of a sensitive imaging polarimeter
SPIE Proceedings, 2008The Extreme Polarimeter (ExPo) is approaching its first deployment at the 4.2 m William Herschel Telescope at La Palma. This imaging polarimeter, developed at the Astronomical Institute of Utrecht University, aims to study circumstellar material at a contrast ratio with the central star of 10-9.
Rodenhuis, M. +3 more
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Nature, 1966
Selected Constants Optical Rotatory Power, 1a. Steroids By J. Jacques, H. Kagan, and G. Ourisson. Edited by S. Allard. (Tables of Constants and Numerical Data, 14. Associated Organization of the International Union of Pure and Applied Chemistry.) Pp. 1031. (London, Paris and New York: Pergamon Press, Ltd., 1965.) 258 F.
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Selected Constants Optical Rotatory Power, 1a. Steroids By J. Jacques, H. Kagan, and G. Ourisson. Edited by S. Allard. (Tables of Constants and Numerical Data, 14. Associated Organization of the International Union of Pure and Applied Chemistry.) Pp. 1031. (London, Paris and New York: Pergamon Press, Ltd., 1965.) 258 F.
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1981
In PETRA the vertical beam polarization was measured using the following system: Circularly polarized photons are scattered by the electron beam. In the case of vertical polarization the vertical profile of the backscattered photons has asymmetries within an angle of 30 μrad.
H. D. Bremer +6 more
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In PETRA the vertical beam polarization was measured using the following system: Circularly polarized photons are scattered by the electron beam. In the case of vertical polarization the vertical profile of the backscattered photons has asymmetries within an angle of 30 μrad.
H. D. Bremer +6 more
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AIP Conference Proceedings, 1986
Polarimetry for proton beams used at Fermilab, the Brookhaven AGS, and the FNAL polarized beam include Nuclear Magnetic resonance techniques, electromagnetic effects in pp and p–nucleus scattering, pion photoproduction, and analyzing power in e–p scattering. These and other techniques are in being considered for use at the SSC facility.
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Polarimetry for proton beams used at Fermilab, the Brookhaven AGS, and the FNAL polarized beam include Nuclear Magnetic resonance techniques, electromagnetic effects in pp and p–nucleus scattering, pion photoproduction, and analyzing power in e–p scattering. These and other techniques are in being considered for use at the SSC facility.
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AIP Conference Proceedings, 1998
The HERMES hydrogen target was operated during 1996 and 1997 in the HERA electron ring at DESY to study the spin structure of the proton by deep inelastic lepton proton scattering. An Atomic Beam Source (ABS) injects an atomic hydrogen beam of high intensity and high proton polarization into a storage cell, made of thin aluminum and coated with Drifilm.
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The HERMES hydrogen target was operated during 1996 and 1997 in the HERA electron ring at DESY to study the spin structure of the proton by deep inelastic lepton proton scattering. An Atomic Beam Source (ABS) injects an atomic hydrogen beam of high intensity and high proton polarization into a storage cell, made of thin aluminum and coated with Drifilm.
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Journal of Chemical Education, 1960
Describes the construction of a simple polarimeter that can be constructed by students for use in laboratory experiments.
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Describes the construction of a simple polarimeter that can be constructed by students for use in laboratory experiments.
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