Triply differential cross sections are calculated for one-photon double ionization of neon and argon at various photon energies and electron energy sharings by using a frozen-core treatment to represent the remaining electrons of the residual ion. Angular distributions agree well with all existing experimental data, showing that in spite of its simplicity the method can treat the double ionizat...

Human subjects perceive two crossing bars, one in front of the other, when shown a cross with disparity added to its horizontal limbs, and they also perceive neon-color spreading when shown a stereoscopic Redies-Spillmann figure. It has thus been hypothesized that the human visual system follows the principle of generic image sampling in reconstructing 3-dimensional (3-D) surface structures. He...

Systematic studies of identification efficiency for e/n/p were performed in a variety of noble gas mixtures and in pure hydrocarbons at pressures up to 5 atm using a 15 GeV/c tagged beam. Neon mixtures were found to give the best results (6.7 (I n/p separation at 1 atm). Replacing the conventionally used argon by neon would permit a reduction of detector depth by almost a factor of two. The mea...

The High Energy Transmission Grating (HETG) Spectrometer aboard the Chandra X-Ray Observatory was used to observe E0102-72, a ∼1000 year old, oxygen rich supernova in the Small Magellanic Cloud. The HETG disperses the image of the remnant into a spectrum of images in the light of individual X-ray emission lines. Doppler shifts in the strongest lines of oxygen and neon reveal bulk motions of up ...

We investigate the role of carrier gases in the production of metastable argon atoms in a rf-driven discharge. The effects of different carrier gases (krypton, xenon, neon, and helium), carrier gas pressures, and rf discharge powers are examined. A xenon carrier gas provides the greatest metastable population of argon, yielding an optimal fractional metastable population of argon (Ar(*)/Ar) of ...

The influence of light environment on the organic constitution of normal rabbits was studied by comparing the weights of organs of animals that had been living under cerrtain conditions for long periods of time. It was found that the light environment produced an effect on the physical constitution of the rabbits which was comparable to the effects produced on the functional activity of the sam...