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A Treatment of Some Periodic Potential Problems

Description: A method of treating periodic potential problems, which appears to offer some simplifications, is described. The classical Kronig-Penny problem was treated as an introduction to the applications after which the method was used to obtain the band structure for the periodic potential, the parabolic scallop potential,'' consisting of a linear chain of segments of vertical parabolas opening upwards. The general problem for the one-dimensional periodic potential with reflection symmetry was then tre… more
Date: November 1, 1962
Creator: McColl, D. & Simpson, O. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Chemistry Division, Section C-II, Summary Report for July, August, and September 1952

Description: This report deals with the (1.1) physical properties of graphite, (1.2) effects of pile irradiation on the properties of graphite, (1.3) effect of irradiation on "ceramic" materials, (1.4) effects of radiation on ice -- the x-ray induced luminescence of ice, (1.5) investigation of color centers and other optical properties of single crystals. (2.1) radiation chemistry of liquids, (2.2) application of mass spectrometry to chemical problems, (2.3) vapor pressure and heat of vaporization of uraniu… more
Date: January 21, 1953
Creator: Gilbreath, J. R. & Simpson, O. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Chemistry Division, Section C-II, Summary Report For October, November, and December 1952

Description: This report deals with the (1.1) physical properties of graphite, (1.2) effects of pile irradiation on the properties of graphite, (1.3) effect of irradiation on "ceramic" materials, (1.4) exposure and dosage for radiation damage experiments, (1.5) apparatus for the measurement of the thermal conductivity of solids, (1.6) effects of radiation on ice -- the thermoluminescence of ice, (1.7) investigation of color centers and other optical properties of single crystals. (2.1) radiation chemistry o… more
Date: August 14, 1953
Creator: Gilbreath, J. R. & Simpson, O. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Chemistry Division, Section C-II, Summary Report for July, August, and September 1952

Description: This report deals with the (1.1) physical properties of graphite, (1.2) effects of pile irradiation on the properties of graphite, (1.3) effect of irradiation on "ceramic" materials, (1.4) effects of radiation on ice -- the x-ray induced luminescence of ice, (1.5) investigation of color centers and other optical properties of single crystals. (2.1) radiation chemistry of liquids, (2.2) application of mass spectrometry to chemical problems, (2.3) vapor pressure and heat of vaporization of uraniu… more
Date: January 21, 1953
Creator: Gilbreath, J. R. & Simpson, O. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fractionation of Fission Products and Heavy Elements by Volatilization Methods

Description: Technical report describing the attempt to separate the long lived fission product oxides by volatilization methods. A fractionization crucible was used. The fractionations give a fair idea of the relative volatilities of the longer lived fission products and also of the degrees of separation of the plutonium oxide or oxides from the fission products.
Date: August 27, 1946
Creator: Erway, N. D. & Simpson, O. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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