Now showing items 21-30 of 178
Radioiodination via isotope exchange in pivalic acid
(Elsevier, 1986)
A variety of benzoic and aryl aliphatic mono and polyiodinated acids and esters (sterol, triglyceride) were radioiodinated in 55-99% radiochemical yield by isotope exchange with Na 125I in a melt of pivalic acid. In general, ...
The IMB photomultiplier test facility
(Elsevier, 1985-09-15)
An automatic system for testing up to 32 photomultiplier tubes (PMs) simultaneously under single photon counting conditions has been used to measure characteristics of more than 2500 PMs for use in the Irvine-Michigan-Brookhaven ...
Total internal reflection fluorescence in biological systems
(Elsevier, 1984-12)
Fluorescence of labeled proteins near a solid/liquid interface can be excited by the evanescent field of total internal reflection to study reversible adsorption kinetics and surface diffusion.
Applications of [131I]m-iodobenzylguanidine ([131I]MIBG)
(Elsevier, 1987)
The development of the aralkylguanidine [131I]m-iodobenzylguanidine ([131I]MIBG) in the University of Michigan Nuclear Medicine Division has led to diagnostic and therapeutic evaluations of all the neuroendocrine tumors. ...
Measurement of 55Fe in reactor samples by an intrinsic Germanium detector
(Elsevier, 1988)
Determination of 55Fe in reactor samples requires some care because of the low-energy x-rays emitted following decay by electron capture and the presence of 59Fe and other possible [gamma]-ray emitting contaminants in ...
Critical exciton annihilation: Diffusion, percolation or anderson transition?
(Elsevier, 1981-11)
Guest-Guest Triplet-Triplet annihilation in highly purified mixed crystals of naphthalene (guest)- naphthalene-d8 (host) was studied at 1.8 K via spectrally and time-resolved phosphorescence and delayed- fluorescence. We ...
Luminescent fractal reactions: Exciton fusion on percolation clusters
(Elsevier, 1984-12)
Experimental measurements of exciton annihilation in isotopic mixed crystals of naphthalene-h8 in naphthalene-d8 exhibit fractal reaction kinetics on samples well below and slightly above the percolation threshold. The ...
Monte Carlo methods for radiation transport analysis on vector computers
(Elsevier, 1984)
The development of advanced computers with special capabilities for vectorized or parallel calculations demands the development of new calculational methods. The very nature of the Monte Carlo process precludes direct ...
Strong weak interactions
(Elsevier, 1984-12-24)
We study the intriguing and attractive possibility that the standard model Higgs particle is very heavy or does not exist at all and that, as a consequence, a spectrum of vector boson bound states emerges.
Metabolic fate of the heart agent [18F]6-fluorometaraminol
(Elsevier, 1989)
Studies were performed to determine whether [18F]6-fluorometaraminol (18F-FMR), a new neuronal heart radiopharmaceutical, is metabolized in vivo and if the metabolites are taken up in heart. Rat, dog, baboon and guinea pig ...