A Detector for Sub-Surface Cracks (open access)

A Detector for Sub-Surface Cracks

From abstract: "An instrument was developed to detect cracks within 1/8 inch of the surface of cylindrical uranium fuel slugs. The instrument measures changes in eddy currents that are induced at a frequency of 2 KC."
Date: August 1954
Creator: Goodwin, L. E.
System: The UNT Digital Library
Ultrasonic Fusion Joining of Sintered Aluminum Powder Materials to Aluminum Alloys (open access)

Ultrasonic Fusion Joining of Sintered Aluminum Powder Materials to Aluminum Alloys

From abstract: "Essentially void-free fusion-type joints of high strength were produced between small specimens of Type M-276 sintered aluminum powder plate and 1100 Hl4 wrought plate, using a technique consisting of controlled and brief exposure of the ends of both materials to an ultrasonically active coupler face in a bath of molten 1100 aluminum, followed immediately by butt joining and fast cooling. With further development, the process should be adaptable to other types of sintered aluminum powder materials and to other joint geometries."
Date: August 1958
Creator: Thomas, John G. & Meyer, Florence R.
System: The UNT Digital Library
Nonlinear Analogue to Digital Converter (open access)

Nonlinear Analogue to Digital Converter

Technical report. From Abstract: "An electromagnetical instrument is described which produces a shaft rotation which is a linear function of the quantity being measured from a non-linear input signal. The instrument was used to convert the output function of the Nuclear Test Gage (NTG) which is nonlinear with respect to fuel concentration to a form that will directly drive an automatic production recorder (APR). The output shaft is also geared to a Veeder Root counter so that the value of the independent variable is given to the NTG operator in digital form. A rate-of-change detector automatically trips the APR when the reading has come sufficiently close to equilibrium."
Date: August 1959
Creator: Goodwin, Leslie E.
System: The UNT Digital Library
Swaging of Uranium Dioxide Tubes - [Part] I (open access)

Swaging of Uranium Dioxide Tubes - [Part] I

Technical report. From Abstract: "A method was developed for fabricating tubular fuel elements of uranium dioxide by swage compaction of crushed, fused UO2. The elements were 5 to 10 feet long and were clad with stainless steel. UO2 densities up to 91% of theoretical were obtained in tubes about 2.1 inches in outside diameter and 0.3 inch in wall thickness."
Date: August 1960
Creator: Ferrara, Anthony S.
System: The UNT Digital Library
Identification of Curium-242 in Irradiated Neptunium (open access)

Identification of Curium-242 in Irradiated Neptunium

Technical report. From Abstract : "Curium-242 was experimentally identified as a minor product of the irradiation of neptunium-237 in a nuclear reactor." From Introduction : "Determinations of the half-life, alpha energy, and daughter product of the purified curium nuclide were made in this study to confirm the identity as curium-242."
Date: August 1961
Creator: Carothers, Glenn A.
System: The UNT Digital Library
A Facility for Chemical Separation of Pu238 (open access)

A Facility for Chemical Separation of Pu238

Technical report. From Abstract : "A facility for separation of Pu238 and Np237 from irradiated neptunium dioxide target slugs was designed, constructed, and operated at the Savannah River Laboratory. This report describes the facility and includes design details of equipment." From Summary : "The main problems encountered during the design of the facility were: (1) to provide adequate containment and shielding of the radioactive materials, (2) to select chemical- and radiator-resistant materials, and (3) to provide for remote operation and maintenance of process equipment. ... This report contains a discussion of the major design problems and a detailed description of the facility and equipment."
Date: August 1962
Creator: Coogler, Arthur L. & Fowler, Bill F.
System: The UNT Digital Library