Investigation Of Polarized Proton Target Materials By Differential Calorimetry PDF Download
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Release | : 1980 |
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Download Investigation of Polarized-proton Target Materials by Differential Calorimetry Book in PDF, ePub and Kindle
A simple differential calorimeter was designed and operated for an investigation of the thermodynamic properties of polarized target materials. The calibration and use of the calorimeter are discussed, after a brief exposition of our motivation for this work. The results of a preliminary study of target materials is presented with emphasis on the relevance of the glass state to dynamic polarization in chemically-doped targets.
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Total Pages | : 582 |
Release | : 1991-10 |
Genre | : Power resources |
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Download Energy Research Abstracts Book in PDF, ePub and Kindle
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Total Pages | : 998 |
Release | : 1981 |
Genre | : Nuclear energy |
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Download INIS Atomindex Book in PDF, ePub and Kindle
Author | : Pavel Winternitz |
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Total Pages | : 160 |
Release | : 1966 |
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Download Use of Polarized Proton Target in the Investigation of Low-energy Nucleon-nucleon Interactions Book in PDF, ePub and Kindle
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Total Pages | : 466 |
Release | : 1987-03 |
Genre | : Science |
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Download Government Reports Announcements & Index Book in PDF, ePub and Kindle
Author | : Juan Pablo Urrego Blanco |
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Total Pages | : 150 |
Release | : 2009 |
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Download Studies on a Polarized Proton Target for Reactions with Radioactive Ion Beams Book in PDF, ePub and Kindle
Over the last few years, much progress has been made towards the understanding of basic properties of nuclei with extreme neutron to proton ratios. However, the study of phenomena involving spin polarized nuclei near the drip lines remains practically unexplored. The importance of such studies lies in the fact that the most complete knowledge of the scattering matrix is obtained in reactions with polarized particles. The purpose of this dissertation was to explore the feasibility of using polarized probes in reactions with exotic nuclei. We identified areas where reactions between Radioactive Ion Beams (RIBs) and light polarized targets open a new window of opportunity to study the behavior of those nuclei. These include nuclear structure studies using elastic scattering, the investigation of isolated resonances in nuclei of interest for astrophysics, the study of weakly bound nuclei, one nucleon transfer reactions, and reaction mechanisms. Motivated by these potential applications, we developed a polarized proton target with unique capabilities to operate in reactions with heavy ions at low and intermediate energies. Protons in a plastic foil are polarized using the dynamic nuclear polarization method, which requires low temperature operation (~200 mK) and intense magnetic fields (2.5 T). The foils can be prepared using the spin coating technique, resulting in thicknesses between 100 [mu]g/cm2 and 20 mg/cm2. We have demonstrated operation of the target in frozen spin mode (low magnetic field, e.g., 0.8 T), required for experiments at low energies. For experiments with fast beams the target can be operated in dynamic mode reaching polarizations of up to 30% (B=2.5 T, continuous microwave irradiation). The operational limits of the target have been explored at the Paul Scherrer Institute and at the Holifield Radioactive Ion Beam Facility using the thick target technique with 12C beams at 38 MeV and intensities up to 107 pps, corresponding to the most intense RIBs available. The dissertation concludes with a series of recommendations for future improvements on the target systems and suggesting the use of the target to further investigate weakly bound systems.
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Total Pages | : 704 |
Release | : 1995 |
Genre | : Aeronautics |
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Download Scientific and Technical Aerospace Reports Book in PDF, ePub and Kindle
Author | : Stefan Mathias Sarge |
Publisher | : John Wiley & Sons |
Total Pages | : 346 |
Release | : 2014-02-25 |
Genre | : Science |
ISBN | : 3527649387 |
Download Calorimetry Book in PDF, ePub and Kindle
Clearly divided into three parts, this practical book begins by dealing with all fundamental aspects of calorimetry. The second part looks at the equipment used and new developments. The third and final section provides measurement guidelines in order to obtain the best results. The result is optimized knowledge for users of this technique, supplemented with practical tips and tricks.
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Total Pages | : 978 |
Release | : 1973 |
Genre | : Nuclear energy |
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Download Nuclear Science Abstracts Book in PDF, ePub and Kindle
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Total Pages | : 92 |
Release | : 1966 |
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Download Studies on the Optical Model for Proton Elastic Scattering at 9.6 MeV Book in PDF, ePub and Kindle