Now showing items 121-130 of 132
Radiolabeled antibodies, albumin and antimony sulfide colloid: A comparison as lymphoscintigraphic agents
(Elsevier, 1988)
The kinetics of lymph node and systemic uptake of members of three different classes of lymphoscintigraphic agents were studied in normal laboratory rats. 99mTc antimony trisulfide colloid (TcSbC), 99mTc human serum albumin ...
Quark mass effects and anomalies
(Elsevier, 1988-08-25)
When one takes into account that different quarks have unequal masses, five-point functions associated with pentagon graphs with two external gluons (2g) are modified by terms involving quark mass ratios. In this context ...
Design of a pulsed valve for high‐pressure NH3 injection into supersonic beam/mass spectrometry
(The American Institute of Physics, 1988-11)
A novel design of a pulsed valve for high‐pressure injection of NH3 for supersonic jet expansions is presented. This valve can operate up to 200‐atm reservoir pressure at 180 °C with a pulse width down to 100 μs. This valve ...
A captive solvent method for rapid N-[11C]methylation of secondary amides: Application to the benzodiazepine, 4'-chlorodiazepam (RO5-4864)
(Elsevier, 1988)
[11C]4'-Chlorodiazepam (RO5-4864), for PET studies of peripheral benzodiazepine receptors, was synthesized by alkylation of 1-desmethyl-4'-chlorodiazepam, in a small volume of acetone adsorbed on acrylic yarn, with [11C]methyl ...
Pulsed laser desorption method for volatilizing thermally labile molecules for supersonic jet spectroscopy
(The American Institute of Physics, 1988-04)
A technique using pulsed laser desorption is described as a means of volatilizing nonvolatile and thermally labile molecules into the gas phase for entrainment in supersonic jet expansions. By carefully controlling the ...
Proposed new reactor-activated positron source for intense slow e+ beam production
(Elsevier, 1988-03-01)
A novel method is suggested for producing a new positron (e+) emitting isotope in a nuclear reactor with application to slow e+ beams. The initial radiated sample is 124Xe which is transformed to 126I by two neutron ...
Dynamics of phase‐locked semiconductor laser arrays
(The American Institute of Physics, 1988-05-23)
Time‐dependent coupled mode theory is used to investigate the stability of phase‐locked semiconductor laser arrays. The output of individual array elements is dynamically unstable and exhibits large amplitude chaotic ...
Production of intense, coherent, tunable narrow‐band lyman‐alpha radiation
(The American Institute of Physics, 1988-10-01)
Nearly transform limited pulses of 1216 Å radiation have been generated by sum frequency generation in 0.1 to 10 torr of mercury vapor. The summed input beams, consisting of photons at 3127 Å and 5454 Å originate in 1 MHz ...
Molecular beam epitaxial GaAs optical detectors on silica fibers
(The American Institute of Physics, 1988-05-23)
By using molecular beam epitaxy and post‐growth annealing techniques, we have successfully made GaAs interdigitated photoconductive detectors on D‐shaped silica fibers. The detectors exhibit low leakage current and internal ...