The reaction of laser excited Ba*(/sup 3/D) states with nitric oxide is presented. BaO product is not detected, although the channel is thermodynamically open, and instead chemiluminescence is observed. Experiments which suggest that radiative recombination, Ba + NO ..-->.. BaNO* ..-->.. BaNO, is the observed reaction channel will also be presented.

The instruments tested included a 9-inch sphere Portable Neutron Rem Counter Model PNR-4 manufactured by Eberline Instrument Corporation, Santa Fe, N.M.; an Andersson-Braum type Remmeter; and Hankins-type albedo neutron dosimeters composed of cadmium-enclosed TLDs. The standard neutron source at the NBS reactor was used. The observed and calculated response curves are presented and discussed. (WHK)

Modification of the combined FI/EI ion source to permit operation in the FD mode is underway. Oxidation-reduction and activation cells were fabricated and assembly of the vacuum system for the activation cell is in progress. High- and low-voltage power supplies needed for emitter preparation were constructed. The sensitivity for field ionization of decane relative to that for ethylbenzene was measured as a function of binary mixture composition, ion-source temperature, and field strength. A gallium frit is being added to the all-glass inlet system. The purity of 25 saturates and naphthenes and 10 single-ring aromatics substituted with alkyl groups was checked using FID/GC.