This report describes the use of a target containing polarized protons in a particle-scattering experiment. Positive pions of 246-MeV kinetic energy were scattered from the polarized protons. The parameter P that was measured is equivalent to that determined by analyzing the recoil-proton polarization in scattering from an unpolarized target. It has been measured to a higher accuracy than heretofore achieved in pion-proton scattering, at an energy and at angles inconvenient for double-scattering techniques.

None

This document details activities of the N-Reactor Department during the month of October 1963.

This document details activities of the N-Reactor Department during the month of September 1963.

During fuel element assembly, a dip-brazing process., the aluminum can which is ultimately a jacket for a uranium core is protected from the molten AlSi solution by a steel sleeve. Once the can is inserted into the sleeve and thermal expansion is complete, upset metal rings prevent molten AlSi from flowing between the can and sleeve, a situation that warrants rejection. Passage of molten solution beyond upset metal to a point on the can wall not removed during the subsequent facing operation is called an ``AlSi Slopover`` or ``Slop.`` With discovery of a solution which would mask 8001-F aluminum alloy from molten AlSi, efforts were directed towards using this solution to eliminate AlSi stopovers. With proper application and control, PWR 125 proved that cans coated with PX1288 did not alloy AlSi in the molten state to pass beyond the upset metal region during canning. Since this material has been used on total production, the CPR rate has been greatly reduced. Percentage of rejects attributable to the CPR category is 0.5%.

This document details activities of the N-Reactor Department during the month of May 1963.

Information is presented on current reactor fuel development (uranium core production data, fuel performance, AlSi process development, and alternate process development) and NPR fuel development (fuel production status, KER loop testing, and process development).

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 moneys received from the sale of sand, gravel, marl and shell underlying state owned submerged lands should be placed in the Sand, Shell and Gravel Fund or in the Permanent Free School Fund; also, whether the Game and Fish Commission has the authority to petition the Corps of Engineers to refuse to grant submerged land oil and gas lessees of the State permits for structures to be placed on their submerged leases for oil and gas development 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 Highway Department may dispense with the requirement that the contractor furnish an affidavit of bills paid prior to making final payment by virtue of Senate Bill 213.

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: Application of H. B. 86, 58th Legislature, to present and subsequently hired employees in the Special "S" salary rates.

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: Constitutionality of H.B. 50, with regard to the delegation to the State Highway Commission of authority to set speed limits on the State Highway System, lower than a maximum speed of 70 miles per hour.

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 Section 4 and 5 of Article 1524A, Vernon’s Civil Statutes; particularly concerning the operation of the proviso in Section 4.

The always critically-safe ratio of plutonium to enriched uranium was exceeded in the F-2 and V-1 vessels on June 6, 1963. The allowable always-safe ratio at the time of the incident vas 627 grams per ton. The actual ratio achieved vas 673 grams per ton. This report details the investigation into events leading to the over-batch.

A half-plant low dichromate-low pH test was started at C Reactor on March 1, 1963. The test will demonstrate whether l.0 ppm sodium dichromate provides adequate corrosion inhibition when,the reactor coolant pH is 6.6. The test monitoring will consist of ex-reactor tube examinations, in-reactor.wall thickness measurements, coupons, visual examination of fuel elements and fuel element weight loss measurements. Previous interim reports have discussed the results obtained from the visual examination of two twenty column discharges obtained as follows: one discharge prior to the start of the test; one discharge such that the fuel was exposed to-coolant treated at both 7.0 and 6.6 pH. This report discusses the-results from.the visual examination and-weight loss measurements on fuel irradiated under test conditions, the results-from coupons-exposed in the downstream spacer pattern, and the ex-reactor examination,of two process tubes.

The real cost of metallurgical examination of irradiated fuel elements is several times that of fuels before irradiation. Since post-irradiation study is necessary to determine the performance of prototype fuel designs in a reactor environment, complete physical characterization before irradiation provides an economical and efficient basis for comparing experimental data. Without such comparative study, unexpected damage to fuels in the reactor would be difficult, if not impossible, to interpret. This report presents such a characterization of one fuel element from a group of fuels prototypic of the initial charge in Hanford`s N-Reactor. This fuel element, 1055-8, is significant because it belongs to the Production Work Request CX-2 family of elements.

This report details activities of the N-Reactor Department during the month of December 1962.

This report details activities of the N-Reactor Department during the month of July 1963.

This report details activities of the N-Reactor Department during the month of January 1963.

This document details activities of the N-Reactor Department during the month of April 1963.

This report details activities of the N-Reactor Department during the month of February 1963.

The status of aqueous processing methods for tharium fuels is reviewed. A specially designed 250-ton shear was successfully tested for shearing full-size simulated Consolidated Edison type unirradiated assemblies into 0.25-1.5 in. lengths.

Abstract: A stainless steel clad 9-rod assembly fabricated by The Babcock & Wilcox Company was irradiated in a boiling water loop of the General Electric Test Reactor. A post-irradiation examination revealed no significant dimensional changes on the fuel rods. the results of mass spectrometric analysis made of the pelletized UO2 fuel indicated a maximum burnup of 11,500 MWD/tonne was attained by Rod B-4 during the exposure.An x-ray diffraction examination of an unirradiated fuel sample revealed the presence of UN2 and U2N3 phases. Metallographic examination of the irradiated microstructures revealed similar second-phase particles.

Quarterly progress report discussing activities related to the Vallecitos Boiling Water Reactor (VBWR) and related facilities

For an experiment to measure the magnetic moment of the Λ hyperon, it was necessary to extract the external beam of the Cosmotron with maximum efficiency and with minimum time duration. To accomplish this end, the standard external beam of the machine was supplemented with the Rapid Beam Ejector. It was found that, unfortunately, the ejection efficiency of the beam was less than normal when the RBE was used. Measurements of the ejection efficiency were made by irradiating polyethylene foils at the second focus of Beam 1 with 3 BeV protons. The external beam was tuned up and optimized in a standard manner. It was found that the ratio of the number of protons ejected with the RBE to the number ejected without the RBE was 0.3 in one run and 0.22 in another try. It was also observed that the RBE did not shift the position of the external proton beam focus to within ± 1/8 in.