Now showing items 31-40 of 208
Comparison of methods for incorporating a radioiodinated residualizing cholesteryl ester analog into low density lipoprotein
(Elsevier, 1992-10)
Two different methods were evaluated for incorporating [125I]cholesteryl iopanoate ([125I]CI), a non-hydrolyzable cholesteryl ester analog, into LDL. The first procedure was an organic solvent delipidation-reconstitution ...
Experimental determination of transformation enthalpies of metastable phase transitions in ion-irradiated NiAl3
(Elsevier, 1991-07-01)
A novel experimental technique has been developed by which metastable phase transformations in thin films may be investigated. The technique is demonstrated by the determination of the enthalpies of transformation of two ...
Chirped pulse amplification in an erbium-doped fiber oscillator/ erbium-doped fiber amplifier system
(Elsevier, 1994-03-15)
Chirped pulse amplification in erbium fibers is demonstrated. A passively mode locked erbium-doped fiber laser source provides the seed pulses for an erbium-doped fiber amplifier. The system produces femtosecond pulses at ...
The construction of the L3 experiment
(Elsevier, 1990-04-01)
The L3 experiment is one of the six large detectors designed for the new generation of electron-positron accelerators. It is the only detector that concentrates its efforts on limited goals of measuring electrons, muons ...
Oxidation of substituted 4-fluorobenzaldehydes: Application to the no-carrier-added syntheses of 4-[18F]fluoroguaiacol and 4-[18F]fluorocatechol
(Elsevier, 1991)
The synthesis of 4-[18F]fluoroguaiacol (4-[18F]fluoro-2-methoxyphenol) has been achieved in no-carrier-added form starting from 2-methoxy-4-nitrobenzaldehyde, using nucleophilic aromatic substitution by [18F]fluoride ...
Synthesis of a [11C]Methoxy derivative of [alpha]-Dihydrotetrabenazine: a radioligand for studying the vesicular monoamine transporter
(Elsevier, 1993-12)
The synthesis of [11C]TBZOMe, a [11C]methoxy derivative at the 2-hydroxy position of [alpha]-dihydrotetrabenazine, was carried out by an O-[11C]methylation reaction. The product [11C]TBZOMe (100-200 mCi) was obtained in ...
Digital synthesis of pulse shapes in real time for high resolution radiation spectroscopy
(Elsevier, 1994-06-15)
Techniques have been developed for the synthesis of pulse shapes using fast digital schemes in place of the traditional analog methods of pulse shaping. Efficient recursive algorithms have been developed that allow real ...
Synthesis of [18F]flunarizine
(Elsevier, 1991)
Flunarizine, a calcium channel antagonist of the piperazine class, has been labeled with the positron-emitter 18F. 4-[18F]Fluoro-4'-fluorobenzhydryl chloride was prepared in three steps from no-carrier-added [18F]fluoride ...
Optimization of neutron activation analyses of 129I in low-level radioactive waste samples
(Elsevier, 1990)
Determination of 129I in low-level radioactive waste (LLW) samples from reactors can be a tedious and time consuming procedure often leading to results with large margins of error. This study used an efficient (approx. 2-3 ...