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Showing 1 to 20 of 71 for “"scattering cross section"”.
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Measurement of the total electron-hydrogen scattering cross section for the Project 8 experiment
… on June 2014 were compared against Monte Carlo scattering predictions. This thesis presents the analysis of these frequency jumps. This thesis also presents electron-hydrogen cross section values for the simulations and theoretical models. The cross section for the simulations is used to …
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Measurement of the Neutron-Neutron Quasifree Scattering Cross Section in Neutron-Deuteron Breakup at 10.0 and 15.6 MeV
<p>Neutron-neutron (nn) quasifree scattering (QFS) in neutron-deuteron (nd) breakup is the kinematic configuration in which the proton remains at rest in the laboratory frame. The cross section for this process is sensitive to the 1S0 component of the nn interaction. Recent measurements of the …
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Determination of the Electron Scattering Cross Section in a Dense Hydrogen Plasma by Means of Intense Laser Light
Made available in DSpace on 2014-12-08T22:24:06Z (GMT). No. of bitstreams: 1 6706676.pdf: 4894436 bytes, checksum: ed71cd9617225da5490e02f49b88556f (MD5) Previous issue date: 1966
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A precision measurement of the e⁺p/e⁻p elastic scattering cross section ratio at the OLYMPUS experiment
… exchange (TPE) to elastic electron-proton scattering in the radiative corrections applied to the Rosenbluth separation measurements. Calculations of the hard TPE contribution are highly model dependent, but the effect may be measured experimentally with a precise determination of the ratio …
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Measurement of the Deeply Virtual Compton Scattering Cross Section from the Proton at 10.6 GeV using the CLAS12 Detector
Deeply Virtual Compton Scattering (DVCS) is an exclusive process that produces a real photon when a lepton scatters from a quark inside a nucleon or a nucleus. Measurement of the DVCS cross section enables the study of the Generalized Parton Distributions (GPD), which plays a central role in …
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ΔΙΑΔΟΣΗ ΤΑΣΙΚΩΝ ΚΥΜΑΤΩΝ ΣΕ ΣΥΝΘΕΤΑ ΥΛΙΚΑ ΚΑΙ ΠΡΟΣΔΙΟΡΙΣΜΟΣ ΤΩΝ ΔΥΝΑΜΙΚΩΝ ΤΟΥΣ ΙΔΙΟΤΗΤΩΝ
… MATERIALS" HAVE BEEN DEVELOPED THE LOW-FREQUENCY SCATTERING THEORY OF ELASTIC WAVES BY A PENETRABLE SCATTERER WITH A PENETRABLE CORE. ANALYTICAL EXPANTIONS FOR THE SCATTERING AMPLITUDES AND FOR THE SCATTERING CROSS-SECTION HAVE ALSO BEEN DERIVED. USING THE SCATTERING CROSS-SECTION THE DYNAMIC …
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Impact of nuclear data libraries for criticality calculation of HTGR
… to be more sensitive to C-12 capture and elastic scattering cross section. For criticality calculations, using JENDL-5 instead of ENDF/B-VIII.1 leads to a Δk≈−200 pcm for the HTTR and a Δk≈−360 pcm for HTR-10. The most significant contributors are the C-12 capture cross section, C-12 elastic …
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The proton Compton effect: A measurement of the electric and magnetic polarizabilities of the proton
The Compton scattering cross section on hydrogen was measured at 60$\sp\circ$ and 135$\sp\circ$ in order to determine the largely unknown electric and magnetic polarizabilities of the proton. The cross sections were measured using tagged photons spanning 32 through 72 MeV in energy. In this energy …
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A Study of the Elastic Scattering of Fast Neutrons by Potassium and lithium
The elastic scattering of fast neutrons by 39K and 7Li has been studied at an incident neutron energy of 14.1 MeV, using a neutron spectrometer employing the associated particle time of flight technique. The source neutrons were produced by the 3H(d,n) 4He reaction at an incident deuteron energy of …
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Deuteron compton scattering below pion threshold
… at MAX-lab in Lund, Sweden to study photon scattering from the deuteron and extract the neutron polarizabilities. The deuteron Compton scattering cross section was measured at laboratory angles of $60^o$, $120^o$, and $150^o$ for photon energies from 70 - 112 MeV. The photons were scattered …
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Light scattering by smoke and nuisance aerosols
… nuisance aerosols. This was undertaken using a scattering cross section based on the mass concentration of aerosols as opposed to the traditional arbittary units.
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Part one: The reaction K-d -> K°nm, from threshold to 300 Mev/c; Part two: K+p elastic scattering: 80-280 Mev/c
The cross section for the reaction K-D -> Knm The cross section for the reaction X D .. ~K n n has been measured for the laboratory momentum interval from threshold (96.7) to 300 Mev/c. The cross section is found to rise quickly above threshold to around 6 mb at 150 MeV/c, then decrease slowly from …
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A determination of the effective thickness of a liquid deuterium target for a quasielastic scattering experiment
… the yield of the neutron-deuteron elastic scattering cross section. The flux of incident neutrons was determined by a fission ionization chamber. The scattered deuterons were detected with a Delta E - E (thin plastic scintillator - thick CsI calorimeter) telescope. The effective target …
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Alpha emission from the interactions of 14-200 MeV neutrons on carbon-12
Cross-sections for the production of alpha particles from the ¹²C(n,α)⁹Begs and ¹²C(n,n')3α reactions were measured for incident neutrons in the energy range 25 to 52 MeV. The measurements were reduced to absolute cross-sections by simultaneously observing deuteron recoils from n-d elastic …
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Spin-flip scattering of conduction electrons from impurities in molten sodium
… these problems were surmounted. The spin-flip scattering cross section of these impurities was determined. The cross section for bismuth is of particular interest in that it serves as a test of the ""resonance hypothesis"" theory proposed by Ferrel and Prange. In addition to scattering cross …
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ΣΚΕΔΑΣΗ ΗΛΕΚΤΡΟΜΑΓΝΗΤΙΚΟΥ ΚΥΜΑΤΟΣ ΑΠΟ ΑΓΩΓΙΜΗ ΕΠΙΦΑΝΕΙΑ ΣΤΟΧΑΣΤΙΚΑ ΑΝΩΜΑΛΗ ΚΑΙ ΧΡΟΝΙΚΑ ΜΕΤΑΒΑΛΛΟΜΕΝΗ
THE SCATTERING OF PLANE ELECTROMAGNETIC WAVES FROM RANDOMLY UNEVEN SURFACES ISTHEORETICALLY INVESTIGATED BY USING MORE COMPLICATED MODELS FOR THE SCATTERING SURFACE. IN THE FIRST PART OF THE WORK A TIME-VARYING RANDOM ROUGH SURFACE IS EXAMINED. THE STOCHASTIC PROCESS, THAT DESCRIBES THE ELEVATION …
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A study of nucleon unstable states produced in direct nuclear reactions
… Comparison with the corresponding elastic scattering cross section is made and the extraction of· spectroscopic information is discussed. Angular distributions and excitation functions for a number of projectile-target systems are calculated. We also suggest nucleon induced inelastic …
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Resonant photon scattering from isotopes of lead and bismuth
Nuclear resonant photon scattering from 206, 207, 208Pb and 209Bi was measured over excitation regions from 4 MeV to the neutron thresholds, using bremsstrahlung beams with endpoint energies of 7.0, 7.5, 7.6, S.5 and 10.4 MeV. Photons scattered from enriched targets of the lead isotopes and from …
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Compton scattering from the proton below pion threshold: A measurement of the electric and magnetic polarizabilities of the proton
The Compton scattering cross section on the proton was measured at laboratory angles of 90$\sp\circ$ and 135$\sp\circ$, using 70-100 MeV tagged photons, and simultaneously using 100-150 MeV untagged photons, in order to determine the electric and magnetic polarizabilities. The 135$\sp\circ$ cross …
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Relation of electron scattering cross-sections to drift measurement in noble gases
… "inverse problem" of extracting collision and scattering cross sections from measurements of electron swarm behavior. A Monte Carlo technique for simulating electron motion through a gas of isotropic scatterers is presented, providing a simplified version of Biagi's MAGBOLTZ algorithm. Using …
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