The Self-Consistent Field of Single-Type Electrons in a Uniform Magnetic Field (open access)

The Self-Consistent Field of Single-Type Electrons in a Uniform Magnetic Field

Report describing the circulation and formation of electrons in a uniform magnetic field as part of a thermonuclear machine proposed at the Second Geneva International Conference.
Date: September 1958
Creator: Tonks, Lewi, 1897-1971
System: The UNT Digital Library
The Self-Consistent Field of Single-Type Electrons in a Uniform Magnetic Field: Addendum (open access)

The Self-Consistent Field of Single-Type Electrons in a Uniform Magnetic Field: Addendum

Report discussing the steps to solve for the analytical solution of an equation that was mentioned in The Self-Consistent Field of Single-Type Electrons in a Uniform Magnetic Field.
Date: September 1958
Creator: Tonks, Lewi, 1897-1971
System: The UNT Digital Library
Preliminary Studies on Electrical Propulsion Systems for Space Travel (open access)

Preliminary Studies on Electrical Propulsion Systems for Space Travel

Report discussing low and high acceleration flight mechanics for interplanetary missions, as well as the energy limitation for electric propulsion systems powered by a nuclear energy source. From abstract: "An optimization procedure for low acceleration systems is given which leads to a simple relationship between mission requirements, payload fraction, power plant specific power, and exhaust velocity."
Date: September 22, 1958
Creator: Fox, Robert H.
System: The UNT Digital Library
Small-Scale Instabilites of the Pinch and a Suggested Remedy: The Levitron (open access)

Small-Scale Instabilites of the Pinch and a Suggested Remedy: The Levitron

Report discussing "experimental results on the classical stabilized pinch," "the usefulness of the Levitron in Stellarator-type operation," and "practical details of the levitation process." A configuration is presented which involves a "toroidal pinch tube inside which a rigid toroidal conductor is levitated by means of an induced magnetic field." Additionally, "an alternative scheme is considered, where the toroidal core is suspended from current-carrying wires, but this approach does not appear promising."
Date: September 1958
Creator: Colgate, Stirling A. & Furth, H. P.
System: The UNT Digital Library
Monte Carlo Methods (open access)

Monte Carlo Methods

Abstract: "The paper is concerned with the basic concepts and techniques of Monte Carlo, such as the generation of random numbers, the construction of samples from a given distribution, and techniques for reducing the variances of the estimates. The latter include the expected values method, systematic and stratified sampling, importance sampling, splitting and Russian roulette, conditional Monte Carlo, and correlation and regression. These are discussed with reference to two examples: a system comprising a roulette wheel and three urns, and a simplified neutron shielding problem. For the two-stage sampling in the first example, the inequalities among the variances of ten of the estimates obtained by various methods are investigated."
Date: September 1958
Creator: Kaplan, Edward L.
System: The UNT Digital Library
Radiobiological Studies On Yeast (Discussion) (open access)

Radiobiological Studies On Yeast (Discussion)

This is an attempt to summarize and relate at least some of the material presented in four talks during a symposium on radiobiological studies on yeast, and in addition discuss some related experimental results. The discussion will be divided into two sections: I) a discussion of the various manifestations of radiation damage in yeast; and II) a consideration of modification of these damages by variations of physico-chemical and biological parameters.
Date: September 1958
Creator: Mortimer, Robert K.
System: The UNT Digital Library
Energy Reception And Transfer In Photosynthesis (open access)

Energy Reception And Transfer In Photosynthesis

The basic information about the path of carbon in photosynthesis is reviewed, together with the methods that were used to discover it. This has led to the knowledge of what is required of the photochemical reaction in the form of chemical species. Attention is then directed to the structure of the photochemical apparatus itself insofar as it is viewable by electron microscopy, and some principles of ordered structure are devised for the types of molecules to be found in the chloroplasts. From the combination of these, a structure for the grana lamella is suggested and a mode of function proposed. Experimental test for this mode of function is underway; one method is to examine photoproduced unpaired electrons. This is discussed.
Date: September 23, 1958
Creator: Calvin, Melvin, 1911-1997
System: The UNT Digital Library