A Transistorized Reactivity Measurement System (open access)

A Transistorized Reactivity Measurement System

An all-transistor system has been developed to be used in measuring the reactivity of the reactor in the Sandia Engineering Reactor Facility. In operation, the system triggers a pulsed neutron source (PNS) in the reactor and counts the resulting neutron flux, thus giving a measure of the time constant of the reactor. The counting is done in eleven time-sequenced counting channels. The reactor time constant is a measure of the reactor reactivity.
Date: July 6, 1960
Creator: Ehrman, Leonard
System: The UNT Digital Library
A High-Voltage Pulse Generator for Testing Dielectric Samples (open access)

A High-Voltage Pulse Generator for Testing Dielectric Samples

Abstract: The purpose of this report is to describe the problems inherent to general dielectric strength measurements, and to act as a guide in establishing a method for pulse dielectric strength measurements.
Date: July 13, 1960
Creator: Kelly, R. D.
System: The UNT Digital Library
High Velocity Shock Testing, Equipment and Methods (open access)

High Velocity Shock Testing, Equipment and Methods

The need for special high velocity shock testing is pointed out and equipment that has been developed to meet these needs is discussed. The concept of velocity-change and its importance in shock-testing technology is brought out. The three types of equipment discussed are: accelerated drop testers, pneumatic actuators, and air guns. Examples of each type and their capabilities and limitations are presented.
Date: July 11, 1960
Creator: Walker, Walter W.
System: The UNT Digital Library
Phantom Gage Dimensioning (Combined Part/Gage specifications) (open access)

Phantom Gage Dimensioning (Combined Part/Gage specifications)

Abstract: This memorandum discusses a new design definition technique, requiring no standard, which pictorially shows part and gage limits on the same drawing. When functional gages, test fixtures, or optical chart gages are the selected inspection method, design, manufacturing process, and gage engineers can use these drawings directly to replace the usual standards-based drawings. In essence, this advanced technology visually describes true position dimensioning and tolerancing. It enables product designers to directly control the acceptance process.
Date: July 1964
Creator: Roth, E. S.
System: The UNT Digital Library
A Class of Casualty Functions with Special Application to Circular Targets (open access)

A Class of Casualty Functions with Special Application to Circular Targets

Abstract: "Methods developed by [the Systems Evaluation Department] to analyze circular targets are extended to handle a particular family of casualty curves."
Date: July 1, 1960
Creator: unknown
System: The UNT Digital Library
Estimating Safety Probabilities from Fallout Forecasts for Nevada Test Site (open access)

Estimating Safety Probabilities from Fallout Forecasts for Nevada Test Site

Abstract: "Available data on wind persistence and wind forecasting capability have been applied in estimating the probability of a fallout pattern shifting from an uninhabited safe sector into a populated region. Safety probability is computed from win variability, forecasting accuracy, initial height and particle size of radioactivity landing at a point in the predicted fallout pattern, predicted wind speed, length of forecast period, and safe-sector angular width."
Date: July 1, 1960
Creator: Reed, Jack W.
System: The UNT Digital Library
A Study of Nevada Test Site Wind Variability (open access)

A Study of Nevada Test Site Wind Variability

Abstract: "Wind observations collected at Yucca Flat since 1951 are analyzed for timewise variability. Variability functions of altitude, season, wind speed, and vector wind are described. Derived variability parameters are incorporated into calculations of fallout safety probability for NTS operations."
Date: July 1, 1960
Creator: Reed, Jack W.
System: The UNT Digital Library
High-Explosive Ditching from Linear Charges (open access)

High-Explosive Ditching from Linear Charges

Abstract: "Weights of linear high-explosive charges fired on the Yucca Lake playa of the Nevada Test Site varied from 0.23 to 42.7 pounds per foot. Crater and ditch dimensions and volumes resulting from these shots, fired during the fall of 1959 and spring of 1960, are presented here as a function of charge burst depths. Scaling relationships determined are as expected; i.e., square-root scaling of linear-charge weight per foot for ditch width and depth and a direct linear-charge weight relationship to ditch volume are obtained. Permanent ground surface displacement varies as the -3.22 power of the scaled distance from the charge. Detonation effects, charge shape effects, ditch erosion, and ditch cross sections are discussed. The appendixes present Toboggan data, results of soil investigation, and mathematical treatment given the data."
Date: July 1961
Creator: Carlson, R. H.
System: The UNT Digital Library