Reactor irradiation of naturally-occurring thorium-232 produces both uranium-233 and the undesirable isotopic contaminant, uranium-232. Uranium-232 decays (74 year half-life) to thorium-228, which in turn decays with a two year half-life to a string of comparatively short-lived daughters some of which emit very highly energetic beta and gamma radiations. It is generally desirable to accumulate a substantial inventory of irradiated thoria before diverting a plant such as Purex temporarily to chemical processing of the thoria. Especially during this waiting period significant amounts of thorium-228 can be formed from decay of uranium-232, thus causing isotopic contamination of the recovered thorium-232. The purpose of this report is to show how thorium-228 builds up in thoria which has been irradiated under several different conditions and then allowed to cool for a varying period of time. The results are shown in Figures 1 through 4. Derivation of the results is described in Appendix I.

Programs undertaken by N-Fuels Engineering should be designed to achieve the following general objectives; (1) maintain and/or improve fuel element quality level necessary to assure satisfactory reactor performance; (2) develop the fuel fabrication technology required to support the development and testing of new fuel designs; (3) reduce fuel manufacturing costs to achieve projected operated cost targets; (4) reduce the uranium metal costs charged to N-Reactor. Further, these programs must be integrated to provide maximum support to identifiable Section and Department goals. The specific goals for CY-65 are: (1) development technology necessary to support conversion to co-product operation early in CY-66; (2) conduct a program of uranium fabrication development to improve fuel element quality and reduce uranium costs; (3) improve fuel element quality, manufacturing yields, and conversion costs for the current production fuel design; (4) develop fuels capable of extended exposure and/or higher power level operation in support of alternate reactor operating plans; (5) develop new fuel fabrication techniques to extend the capabilities for fuel fabrication within the N-Reactor Department; (6) initiate equipment design and procurement actions as necessary to provide capability to meet production schedules.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Waggoner Carr, regarding a legal question submitted for clarification: Whether, under the facts stated, a fireman should be required to contribute a per cent of sick leave and vacation pay into the Pension Fund.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Waggoner Carr, regarding a legal question submitted for clarification: Whether a corporation court has jurisdiction on a complaint charging theft of personal property of the value of $5.00 or under, where such property is stolen from a retail establishment under conditions defined by Article 1436e, V.P.C. (The Shoplifting Statute)

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Waggoner Carr, regarding a legal question submitted for clarification: Does the presence of the County Sheriff in the Grand Jury Room during interrogation of witnesses, but not during deliberation, create any error in the Grand Jury proceedings that would invalidate the returned indictments and related question.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Waggoner Carr, regarding a legal question submitted for clarification: Whether the pay raise granted by Acts, 59th Legislature, 1965, Chap. 487, p. 999, operates to forbid the payment to the County Treasurer of Dallas County, the compensation established by Art. 8019, V.C.S., for his handling of the funds of a Levee Improvement District.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Waggoner Carr, regarding a legal question submitted for clarification: Construction of interagency contract between the Texas Department of Mental Health and Mental Retardation and the State Building Commission.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Waggoner Carr, regarding a legal question submitted for clarification: Whether the Texas Employment Commission can lawfully contract with the Director of the Office of Economic Opportunity to test, screen, counsel and refer applicants for the Job Corps which was created by the Economic Opportunity Act of 1964, Public Law 88-452.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Waggoner Carr, regarding a legal question submitted for clarification: Eligibility of Legislator for appointment to another state office under the facts stated.

This report shows the status of production test control tube loadings in reactor process tubes containing significant amounts of SS materials.

This report provides the status of production test control tube loadings in reactor process tubes containing significant amounts of SS materials.

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Abstract: RFD-2 was the second of Sandia's operational safety flight tests of systems for nuclear auxiliary power.

Abstract: This report presents a summary and brief evaluation of the RFD-2 flight-test data reduced as of December 16, 1964.

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This report provides a representative sample of the literature on the political developments in Yemen since 1960.

On the basis of the analytical methods used, preliminary radiochemical analysis of the water samples collected after the Salmon event indicate that no detectable level of radioactive contamination exists. Samples were obtained from the calcite caprock at a depth of 934 to 1,006 feet and through intervening aquifers to aquifer 1 at a depth of 365 to 421 feet from the surface. The water sample collected from the calcite caprock was taken within approximately 1,700 feet of the detonation. Periodic sampling of the wells will continue and more refined analytical techniques will be used in analyzing the samples. After the hydrologic test wells have been better developed by bailing, additional isotopes will be investigated.

Abstract: "Pressure vessel steel surveillance programs are performed in nuclear power reactors to provide knowledge of the mechanical properties of the pressure vessel material as neutron irradiation proceeds. A standard surveillance program is described. Design of specimens, capsules, and associated equipment, as well as selection of test material and techniques for special preparation and testing, are discussed."

This report gives the status of production test control tube loadings in reactor process tubes containing significant amounts of SS materials. Data are given in table form. For further description of column headings and the current discharge goal exposure plan refer to Document RL-REA-837.

The development of the concepts for general-purpose scanning systems is discussed, based on the consideration of ultrasonics operating in liquid sodium. Technical information and data, such as ultrasonic attenuation in liquid sodium, piezoelectric materials operating in 600 F sodium, ect., are provided from theoretical and experimental studies. The report also includes explanations, analyses, and applications of the single-narrow-beam scanning systems and the electronic acoustic image conversion methods.