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Showing 1 to 17 of 17 for “"Polarized electrons"”.
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Inclusive scattering of polarized electrons from polarized protons in the Delta-excitation region with BLAST
<p>Inclusive scattering of polarized electrons from polarized protons has been studied using the BLAST detector at MIT-Bates Linear Accelerator Center. The Bates Large Acceptance Spectrometer Toroid (BLAST) is a detector designed to study in a comprehensive and precise way the spin-dependent …
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A measurement of spin-dependent asymmetries in quasielastic scattering of polarized electrons from polarized helium-3
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1995.
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Using Fundamental Properties of Light to Investigate Photonic Effects in Condensed Matter and Biological Tissues
… in the formation of photogenerated spin-polarized electrons. OAM and SAM can be used to enhance communications, information and computers.</p> <p>Understanding the mechanism of electron spin relaxation is important for engineering devices which rely on long spin relaxation times. GaAs is …
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Non-equilibrium spin accumulation in Co2FeMnSi/n-GaAs heterostructures
… via flip-flop interactions with the spin-polarized electrons. Chapter 1 covers the theoretical framework which we use to electrically study the injection and detection of electron spins into GaAs. This framework includes two relevant mechanisms for injection and detection of spins, which …
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Spin structure of the proton and the Q² evolution of the Gerasimov-Drell-Hearn integral
… e'X with a 2.5GeV and a 4.2GeV incident beam of polarized electrons. The virtual photon four momentum squared, Q2, varied from 0.2GeV2/c2 to 1GeV2/c2 and the center of mass total energy W ranged up to 2GeV. The measurement was performed at the CEBAF Large Acceptance Spectrometer (CLAS) of the …
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Measurement of the fifth structure function in quasi-elastic proton knock-out from carbon
… the electron scattering plane when the incident electrons are longitudinally polarized. 560 MeV polarized electrons were scattered from a $\sp{12}$C target, and electrons were detected in the ELSSY spectrometer in coincidence with quasi-elastic knock-out protons, which were detected in the new …
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Measurement Of Neutron Radius In Lead By Parity Violating Scattering Flash ADC DAQ
… from March 19th to June 21st. Longitudionally polarized electrons at energy 1 GeV scattered at and agnle of θ<em>l<sub>ab</sub></em> = 5.8° from the Lead target. Beam corrected pairty violaing counting rate asymmetry is (A<em><sub>corr</sub></em> = 594 ± 50(<em>stat</em>) ± …
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Precision Measurement of the Spin Structure of the Proton and the Deuteron
… using deep inelastic scattering of 50 GeV polarized electrons from dynamically polarized, solid <sup>15</sup>NH<sub>3</sub> and <sup>6</sup>LiD targets. Three independent spectrometers, covering a large kinematic region, 0.014 < <em>x<sub>Bjorken</sub></em> < 0.9 and 1 < …
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A Precision Measurement of the Neutron d2: Probing the Color Force
… resonance regions by scattering longitudinally polarized electrons at beam energies of 4.74 and 5.89 GeV from a longitudinally and transversely polarized 3He target. Results for the absolute cross-sections and spin structure functions on 3He will be presented in the dissertation, as well as …
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Double Spin Asymmetry in d →(e→e'p)n
… EG1 experiment, which scattered longitudinally polarized electrons with energies from 1.6 to 5.8 GeV off a longitudinally polarized cryogenic ND<sub>3</sub> target. The double spin asymmetries were measured as a function of photon virtuality <em>Q</em><sup><em>2</em></sup> (0.13-3.17 (GeV/c)2), …
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Utilizing Parity Violating Electron Scattering As a Probe to Measure the Neutron Radius of 208-pb
… asymmetry APV of the elastic scattering of polarized electrons on 208-Pb and 48-Ca targets. In order to achieve a precision measurement of the neutron skins of 208-Pb and 48-Ca it is imperative to maintain precise control over many experimental parameters–one of which is a precision …
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Precision Measurement of the Proton's Weak Charge using Parity-Violating Electron Scattering
… Hall C. A 180µA beam of longitudinally polarized electrons at 1.16 GeV scattered off a liquid hydrogen target of unpolarized protons. The electrons were collimated to an acceptance of 5.8◦ to 11.6◦ and then passed through a magnetic spectrometer and onto quartz Čerenkov detector bars. A …
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Investigation of the tunneling emitter bipolar transistor as spin-injector into silicon
… as a spin-injector will be a ferromagnet. Spin-polarized electrons from the ferromagnet tunnel directly into the conduction band of the base of the transistor and are subsequently swept into the collector. The tunneling emitter bipolar transistor as a spin-injector allows for large …
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Spin Structure of the Deuteron
… CLAS detector at Jefferson Lab. Longitudinally polarized electrons at energies 1.6, 2.5, 4.2 and 5.7 GeV were scattered from longitudinally polarized NH3 and ND3 targets. The double spin asymmetry A|| for the proton and the deuteron has been extracted from these data as a function of <em>W</em> …
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Measurement of Single and Double Spin Asymmetries in Semi-Inclusive Deep-Inelastic Scattering on Proton and Deuteron
… pion electro-production data on longitudinally polarized solid state NH<sub>3</sub> and ND<sub>3</sub> targets with longitudinally polarized electrons of approximately 6 GeV energy. Data on all three pion channels, π +, π– and π<sup>0</sup>, were collected simultaneously. The charged pions were …
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Spin injection and manipulation in organic semiconductors
… europium sulphide, is demonstrated as a spin-polarized source. Spin-filter materials have shown the possibility to inject spin-polarized electrons into the organic semiconductor at higher voltage bias. This knowledge encouraged to seek organic spin-filter materials. Understanding the …
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Spin Polarized Transport in Nanoscale Devices
… (or half-metallic) material which injects spin polarized electrons in the channel. During transit, the spin polarizations of the electrons are controllably rotated by a gate electric field mediated spin-orbit coupling effect. The drain contact is ferromagnetic (or half-metallic) as well and the …