Zobrazeno 1 - 10
of 22
pro vyhledávání: '"O C Simpson"'
Publikováno v:
Physical Review. 71:238-249
The free fall of atoms is observed in long molecular beams of potassium and cesium atoms. The measurement of the intensity distribution in a beam deflected by gravity represents the velocity distribution of the beam atoms and permits an accurate dete
Autor:
R. J. Thorn, O. C. Simpson
Publikováno v:
Review of Scientific Instruments. 20:504-507
A technique is described which enables one to measure relative vapor pressures by measuring the rate of change of transmissivity of thin deposits as they are formed by condensation from the vapor. From the temperature dependence of this rate the heat
Publikováno v:
The Journal of Chemical Physics. 18:724-734
The volatility of plutonium dioxide has been measured in the temperature range 1320°C to 1790°C by a modification of the Knudsen effusion method. The plutonium dioxide was heated in vacuum in a tantalum oven. Under these conditions the dioxide was
Autor:
O. C. Simpson, R. J. Thorn
Publikováno v:
Journal of Applied Physics. 24:633-639
The spectral emissivities of graphite and carbon have been determined at a wavelength of 0.653μ in the temperature range of 1285 to 2035°K and have been found to be temperature dependent in accordance with a prediction from a relation between refle
Publikováno v:
The Journal of Chemical Physics. 18:713-723
Vapor pressure measurements have been made with three halides of plutonium by a modification of the Knudsen effusion method. Measurements with solid plutonium trifluoride from 1200°K to 1440°K give the vapor pressure‐temperature relation log10pmm
Publikováno v:
Physical Review. 52:535-545
The magnetic moment of the proton was measured by the method of the magnetic deflection of molecular beams employing ${\mathrm{H}}_{2}$ and HD. The result is ${\ensuremath{\mu}}_{P}=2.46{\ensuremath{\mu}}_{0}\ifmmode\pm\else\textpm\fi{}3$ percent.
Autor:
O. C. Simpson, N. D. Erway
Publikováno v:
The Journal of Chemical Physics. 18:953-957
The vapor pressure of americium from a dilute solution in plutonium has been measured by a modification of the Knudsen effusion method. The resulting vapor pressure for pure americium in the temperature range 1450°K to 1820°K is given by the equati
Publikováno v:
Review of Scientific Instruments. 6:265-267
Autor:
R. J. Thorn, O. C. Simpson
Publikováno v:
Journal of Applied Physics. 24:297-299
An exact expression for the temperature difference between the inside and outside of an infinitely long cylinder heated inductively has been derived in terms of Bessel functions. A numerical comparison shows that for small cylinders (radius about 0.3