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Showing 1 to 20 of 359 for “"keV"”.
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Capture cross sections in the KeV region
… relative to the cross section of ¹²⁷I at 24 keV were calculated over the energy range of from 3 to 155 keV. These measured cross section versus energy curves were used to determine the γ-ray strength functions, (r<sub>γ</sub>)/( D<sub>o</sub>), the s-wave neutron strength functions, …
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Photoelectric cross section measurement of platinum at 166 kev
Electronic Thesis
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Capture cross sections of In¹¹⁵ and I¹²⁷ in the Kev region
… needs for neutron capture cross sections in the kev region. An indirect method to obtain these cross sections has been developed and applied to In¹¹⁵ and I¹²⁷ . Previous measurements of capture cross sections from a few kev to a few hundred kev and attempts to obtain average resonance parameters …
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Investigation of projectile coherence effects in fully differential studies of 75 keV proton - H₂ collisions
… for single ionization of H<sub>2</sub> by 75 keV proton impact with varying transverse coherence length of the projectiles. As reported in recent years, the scattering angle dependence of the doubly differential cross sections (DDCS) are significantly affected by the projectile coherence …
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Absolute differential and integral cross sections for charge transfer of state-selected keV oxygen ion with oxygen(2)
… been measured for 0.5, 0.85, 1.5, 2.8, and 5.0 keV O$\sp+$ with O$\sb2$ at scattering angles between 0.01$\sp\circ$ and 3.50$\sp\circ$ in the laboratory frame. The dependence of these cross sections upon the electronic state of the O$\sp+$ ion was investigated. This study was performed using a …
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Interference effects due to projective-target nucleus scattering in single ionization of molecular hydrogen by 75 keV proton impact
… single ionization of molecular hydrogen by 75 keV proton impact have been measured as a function of the projectile scattering angle and energy loss and compared to available theoretical models. Interference structures are directly observed in the scattering angular dependence of the DDCS. The …
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Total electron scattering cross sections of tetrafluoromethane, trifluoromethane, hexafluoroethane, and octafluorocyclobutane in the energy range 0.10 to 4.50 keV.
… are measured in the energy range 0.10 to 4.50 keV using the linear transmission technique. The measured experimental cross sections are compared with other experimental and theoretical cross sections available in the literature. A simple empirical formula is also developed by using the present …
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Untersuchung der Mehr-Teilchen-Dynamik in Stößen von 200 keV H^- mit Helium und Aufbau eines kalten atomaren Wasserstofftargets für Ionisationsexperimente
… -Projektil bei einer Projektilenergie von 200 keV kinematisch vollständig untersucht. Die emittierten Elektronen und das Targetion wurden koinzident und impulsaufgelöst über den vollen Raumwinkel detektiert. Durch Vergleich der experimentellen Daten sowohl mit theoretischen Vorhersagen als auch …
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Negative ion charge transfer of the reaction of S⁻ and O⁻ with atomic hydrogen producing H⁻ ions from 1500 to 10 kev
… with atomic hydrogen were studied from 1.5 to 10 KeV, and the reaction Cl<sup>-</sup> + O<sub>2</sub> + O<sub>2</sub><sup>-</sup> + Cl was studied from 10 eV to 10 KeV. The reactions studied were normalized to the reaction H<sup>-</sup> + H + H + H<sup>-</sup>. The maximum measured cross sections …
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Half lives of the levels 829 and 864 keV in ¹¹⁵In measured by delayed coincidence technique and analysed by three different methods
… performed. Half lives of the levels 829 and 864 keV in ¹¹⁵In were separately measured by means of β-γ delayed coincidence technique. A Ge (Li) detector of 4cc active volume, in conjunction with a constant fraction timing discriminator, was used to detect the γ- branch. The data from this …
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Total electron scattering cross sections of molecules containing H, B, C, N, O, F, Si, P, S, and Cl in the energy range 0.1- 6.0 keV.
… O, F, Si, P, S, and Cl are proposed for 0.1-6.0 keV energies using the existing experimental total electron scattering cross sections (TCS) of simple molecules consisting of these atoms. Based on the EATCS , a simple empirical model depending on the symmetry and geometry of molecule is developed …
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Study of two phonon octupole vibrations in 146Gd
… of such excitations. A state with J =6+ at 3485 keV has been suggested as the two-phonon octupole excitation in 146Gd. A 6+ ! 3 ! 0+ cascade of E3 -ray transitions from this state supports this interpretation This work aims at investigating this 6+ state and the other missing members of the …
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A mass measurement of the short-lived halo nucleus ¹¹Li with the TITAN Penning trap spectrometer
… weighed using this technique. Low energy, E = 20 keV, beams of these radioactive isotopes were produced using the ISAC facility. These were subsequentlycooled and bunched using a square-wave-driven Radio- Frequency Quadrupole (RFQ) ion guide, which was filled with hydrogen gas. The cooled ion …
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