Absolute Measurement of Sulfur-35

Absolute measurement of surface roughness.

In an interferometer which uses a reference surface, the measured surface heights correspond to the difference between the test and reference surfaces. To accurately determine the rms roughness of supersmooth surfaces, the effects of the reference surface roughness need to be removed. One technique for doing this involves averaging a number of uncorrelated measurements of a mirror to generate a...

Indication of superconductivity at 35 K in graphite-sulfur composites.

We report magnetization measurements performed on graphite-sulfur composites which demonstrate a clear superconducting behavior below the critical temperature T(c0) = 35 K. The Meissner-Ochsenfeld effect, screening supercurrents, and magnetization hysteresis loops characteristic of type-II superconductors were measured. The results indicate that the superconductivity occurs in a small sample fr...

Sulfate-sulfur Metabolism in the Rat Fetus as Indicated by Sulfur-35

Twenty-four hours after the intraperitoneal injection of sodium sulfate-S(35) into pregnant rats, sulfur-35 was found in the embryos. The amount of the sulfur-35 retained by the embryos was directly related to their degree of development in utero. A large fraction of the sulfur-35 found in the embryos was insoluble in 5 per cent trichloroacetic acid. At the 9th to 10th day of development, about...

Sulfur-35 as a Mutagenic Agent in Neurospora.

Measurement of absolute transition dipole moment functions

We describe a two-laser experiment using optical-optical double resonance fluorescence and Autler– Townes AT splittings to determine the NaK 3 1 →1 X 1 +, 2 A 1 + absolute transition dipole moment functions. Resolved 3 1 →A 1 + and 3 1 →X 1 + fluorescence was recorded with the frequencies of a titanium-sapphire laser L1 and a ring dye laser L2 fixed to excite particular 3 1 =19,J=11, f ←A 1 + ,...