Iridotomy with red krypton laser instead of blue-green argon laser was performed on 68 eyes with various types of angle-closure glaucoma. Patent iridotomy was obtained in all the eyes, mostly in one working session. In eight eyes secondary closure by pigment needed reopening with a few applications at the iridotomy site. There were no immediate or late complications of importance, the main adva...

Application of a parallel-projection inversion technique to z-scan spectra of multiply charged xenon and krypton ions, obtained by non-resonant field ionization of neutral targets, has for the first time permitted the direct observation of intensity-dependent ionization probabilities. These ionization efficiency curves have highlighted the presence of structure in the tunnelling regime, previou...

A high performance distillation system to remove krypton from xenon was constructed, and a purity level of Kr/Xe = ∼ 3 × 10 was achieved. This development is crucial in facilitating high sensitivity low background experiments such as the search for dark matter in the universe.

AIMS To investigate the longevity and reproducibility of choroidal neovascularisation (CNV) induced by krypton laser photocoagulation in the rat. The presence of cell adhesion molecules (CAMs) and vascular endothelial growth factor (VEGF) during the development of CNV was also studied. METHODS 67 pigmented rats underwent retinal photocoagulation by krypton laser. The eyes were examined by eit...

Electron drift velocities have been measured in liquid krypton, pure and mixed with methane at di!erent concentrations (1}10% in volume) versus electric "eld strength, and a possible e!ect of methane on electron lifetime has been investigated. While no e!ect on lifetime could be detected, since lifetimes were in all cases longer than what measurable, a very large increase in drift velocity (up ...

0NE of the difficult problems in cardiac catheterization is the identification and localization of small left-to-right shunts. This is particularly trying with small residual shunts following intracardiac surgery. It is recognized that standard oximetry, indicator-dilution curves with injection into the right heart, and right-sided angiocardiography are not sensitive enough to identify small le...

An inversion procedure is used to obtain from the extended principle of corresponding - states the pair interaction potentials for argon, krypton and its mixture over a tetnperature range from absolute zero to the onset of ionization. The experimentally-reduced viscosity collision integrals obtained from the corresponding - states correlation have been inverted directly to give the reduced...