Now showing items 11-20 of 177
High accuracy determination of the shape of the efficiency curve of the HPGe detector in the energy range 900 to 1300 keV
(Elsevier, 1994-12-30)
A method for high accuracy characterization of the shape of a High Purity Germanium (HPGe) detector efficiency curve has been developed. Radionuclides with decay schemes having at least two [gamma] lines, for which the ...
VO2+ and X‐Ray Produced V2+ in Tutton Salt
(The American Institute of Physics, 1964-04-15)
The electron spin resonance spectrum of the vanadyl ion (VO2+) in single crystals of Zn (NH4)2(SO4)2⋅6H2O is studied and the properties of x‐ray produced V2+ are compared to those of the V2+ grown directly into the same ...
Gamma-ray spectral imaging using a single-shutter radiation camera
(Elsevier, 1990-12-20)
As part of a program to develop mobile robots for reactor environments, we are developing a radiation-imaging camera capable of operating in medium-intensity (Z scintillator. The raster-scanning camera uses a lead-shielded ...
Application of the Sherman-Morisson formula to scattering problems by multi-component systems
(EDP Sciences, Springer-Verlag, Società Italiana di Fisica, 2002-06)
The scattering matrix for multi-component systems is recalculated using the extended form of the Sherman-Morisson formula. The matrix elements are given explicitly in closed form. The Gibbs-Duhem relation separates the ...
A unified theory of aerosol coagulation
(IOP Publishing Ltd, 1988-06-14)
A unified theory of the coagulation of aerosols is presented based upon the solution of a generalised diffusion equation which describes classical diffusion due to Brownian and turbulent motion as well as the effect of an ...
Paramagnetic resonance of erbium in CaWO4
(Elsevier, 1968-12-02)
A study has been made of the paramagnetic resonance of Er3+ in single crystal CaWO4. and the parameters of the spin-Hamiltonian determined.
Multiple Compton scattering gamma ray imaging camera
(Elsevier, 1990-12-20)
With the recent advances in position sensing detectors, a compact, multiple layered, Compton scattering gamma ray imaging camera has been investigated for technological feasibility. Beginning from Kamea and Hanada's recent ...
Ruby as a Maser Material
(The American Institute of Physics, 1959-07)
The reasons for the initial choice of ruby as a maser material are outlined and some measurements of the parameters in the spin Hamiltonian and of spin relaxation times are reported. The relative merits of single‐ and ...
A closed‐form, free‐energy functional for a binary polymer mixture
(The American Institute of Physics, 1988-06-15)
A new, closed‐form, free‐energy functional is derived for a binary polymer mixture. When the free‐energy functional is expanded in series form around the mean concentration, the leading term in the expansion is the usual ...
Extended detectors in neutron time-of-flight diffraction experiments
(Elsevier, 1967-01-03)