Download or read book THE DEVELOPMENT OF A NEW POSITRON POLARIMETER AND THE PRECISION MEASUREMENT OF THE POLARIZATION OF POSITRONS FROM THE DECAY OF SODIUM 22 written by MARK A. SKALSEY and published by . This book was released on 1982 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: uncertainties affecting the polarimeter system is presented including estimates, calculations, and measurements of all known effects. As a feasibility test of the polarimeter operation, the longitudinal polarization of positrons in ('22)Na decay was measured relative to ('68)Ga, which served as a "normalizing" source, with the result:

Download or read book Dissertation Abstracts International written by and published by . This book was released on 1982 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1984 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement of the Polarization of Positrons Emitted in the Beta Decay of Optically Pumped Sodium 21 written by James Edward Schewe and published by . This book was released on 1994 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book American Doctoral Dissertations written by and published by . This book was released on 1981 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fiscal year 1985 Department of Energy authorization written by United States. Congress. House. Committee on Science and Technology. Subcommittee on Energy Development and Applications and published by . This book was released on 1984 with total page 1836 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physics Briefs written by and published by . This book was released on 1983 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book INIS Atomindex written by and published by . This book was released on 1983 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Precision Measurement of the Transverse Polarization of Positrons from the Decay of Polarized Muons written by Kai-Ulrich Köhler and published by . This book was released on 2004 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Calibration of the PEPPo Polarimeter for Electrons and Positrons written by and published by . This book was released on 2013 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: The PEPPo (Polarized Electrons for Polarized Positrons) experiment at Jefferson Laboratory investigated the polarization transfer from longitudinally polarized electrons to longitudinally polarized positrons, with the aim of developing this technology for a low energy (~MeV) polarized positron source. Polarization of the positrons was measured by means of a Compton transmission polarimeter where incoming positrons transfer their polarization into circularly polarized photons that were subsequently analyzed by a thick polarized iron target. The measurement of the transmitted photon flux with respect to the orientation of the target polarization (+- ) or the helicity (+- ) of the incoming leptons provided the measurement of their polarization. Similar measurements with a known electron beam were also performed for calibration purposes. This presentation will describe the apparatus and calibrations performed at the injector at the Jefferson Laboratory to measure positron polarization in the momentum range 3.2-6.2 MeV/c, specifically to quantify the positron analyzing power from electron experimental data measured over a comparable momentum range.

Download or read book Half Life of Positrons in Condensed Materials written by Howard J. Richings and published by . This book was released on 1953 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2730 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Shape of the Intense Positron Spectrum of Sodium 22 written by William Henry Brantley and published by . This book was released on 1963 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1973 with total page 1132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Measurement of the Longitudinal Polarization of Neon 19 Positrons written by JOVAN. JOVANOVIC and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experiment whose object is to measure the energy dependence of helicity of positrons emitted from Ne-19 is described. The positron helicity is measured indirectly by transferring it to the annihilation-in-flight photons, whose transmission through a magnetized iron cylinder is dependent on their polarisation. The positron helicity therefore results in a difference of the counting rates for opposed directions of the magnetic field. The measured dependence of this asymmetry with pulseheight is compared with a computation which assumes the validity of the two component neutrino theory of beta decay and neglects the depolarisation of positrons. A good fit of theoretical curve to the experimental points is obtained for pulseheights larger than about 1.3 Mev. A strong disagreement is found in the pulseheight range between 0.75 and 1.0 Mev, where the experimental asymmetries are much lower than the prediction. The measurement of the asymmetry of bremsstrahlung produced in copper by electrons from a Sr-Y-90 source is used in order to measure the effective number of aligned electrons in the magnetised iron cylinder. (Author).

Download or read book On the Compensations of Polarized Light with the Description of a Polarimeter for Measuring Degrees of Polarization written by David Brewster and published by . This book was released on 1843 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On the Measurement Technique of Positron Lifetimes written by Risto Myllylä and published by . This book was released on 1976 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: