Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.

In an experimental program recently completed at the 184-inch synchrocyclotron in Berkeley, data were obtained on elastic {pi}{sup +}-p scattering at a laboratory energy of 310 Mev. Quantities measured were the differential cross section, the total cross section, and the polarization of the recoil protons as a function of center-of-mass angle. We have analyzed the data in terms of S, P, and D waves and have obtained only one acceptable solution. The resultant set of phase shifts is of the Fermi type. The D-wave phase shifts are small but definitely needed to obtain an adequate fit to the data. Owing to the relatively high accuracy of the cross-section data and the inclusion of the results of the polarization experiment, the errors on the small phase shifts have been reduced to less than 1{sup 0}. The differential cross-section and polarization data are given in Tables I and II.

Introduction: "This is the tenth letter report on ARF Project C 127, entitled "Preliminary Studies of Scavenging Systems Related to Radioactive Fallout." This report covers the period from October 1 to December 1, 1959."

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, Will Wilson, regarding a legal question submitted for clarification: Qualification of a foreign national bank to act as testamentary trustee in the State of Texas.

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, Will Wilson, regarding a legal question submitted for clarification: Whether a credit memorandum invoice issued by the State Treasurer in 1954 may be allowed now as a credit against a purchase of cigarette stamps.

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, Will Wilson, regarding a legal question submitted for clarification: Constitutionality of S.B. 17, 56th Leg., creating the Texas Coordinating Commission of State Health & Welfare Services.

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, Will Wilson, regarding a legal question submitted for clarification: Remittance which may be made pursuant to Article 5421m, Section 19(A), Vernon's Civil Statutes, to a successful bidder at a sale of forfeited land who refuses to execute a contract of sale and purchase.

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, Will Wilson, regarding a legal question submitted for clarification: Length of time which a police officer may hold a child in custody or in jail before taking said child before a juvenile judge under the provisions of Sec. 11, Art. 2338-1, V.C.S.

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, Will Wilson, regarding a legal question submitted for clarification: Whether parts for an air conditioner, when bought and used for repair purposes, are taxable under Art. 20.01 of H.B. 11, 3rd C.S., 56th Leg.

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, Will Wilson, regarding a legal question submitted for clarification: The extent of the restrictions to be applied because of the words "District Office buildings" in the rider to the Current General Appropriation Bill (H.B. 4, Acts 56th Leg., 3rd Called Session, 1959, Chapter 23, pages 442, 591).

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, Will Wilson, regarding a legal question submitted for clarification: Date a conviction becomes final under Article 6687b, Section 24, V.C.S., relating to automatic suspension of driver's license.

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, Will Wilson, regarding a legal question submitted for clarification: Whether or not shut-in gas royalty payments are taxable under the provisions of Article 7047b, V.C.S.

During the course of process engineering work at the K Reactors, a wide variety of problems have been encountered where hydraulic information was required. This information was, obtained from various documents, from calcuations, and from actual tests run specifically to obtain the information. In order to simplify work of this nature in the future and to present a convenient means of obtaining information, the data so collected are summarized and graphed in this document.

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This monthly document details activities of the Hanford Operations Office during the month of October 1959. (FI)

The reactivity accounting and calculating techniques currently used in operational physics work are almost entirely based upon the flux squared weighting theorem. This theorem has some very serious limitations as the flattening of the reactors is increased. As a consequence many of the calculating techniques and results are theoretically unsound. Unexplainable discrepancies from pile to pile, and in reactivity data compared to original startup data and lattice physics measurements have been noted in the past. This report describes a method of reactivity evaluation based upon a one-group diffusion theory and a multi-region cylindrical geometry approximation. Results are presented which indicate that the methods outlined provide satisfactory accuracy. It is recommended that the methods outlined be adopted for routine reactivity evaluations as soon as the necessary machine computations have been made and standard procedures have been developed. Specific recommendations and results will be published as supplements to this report as soon as data are available.

Following-the K-pile start-ups in early 1955, a program of planned power raises was begun. The operating level had reached 1700--2000 MW by late 1955, and a severe operational control problem became apparent; the power distribution in the reactor was difficult to control and appeared inherently unstable. A study of available data led to the initiation of a production test so that a more detailed study of the phenomena could be made. This report describes the measures taken which led to an improvement in the operating characteristics of the K-piles; the current status and future outlook are also discussed in a general way.

This document details activities of the Fuels Preparation Department during the month of February 1959. (FI)

A resume of Health Physics activities for April, May, and June, 1959 is presented. Discussions and tabulations which summarize results of field surveys, biooassy, personnel monitoring, and environmental surveys are included. The thorium redrumming program reactivated for the summer. Work is in progress to move th "HH" Building process to the "T" Building. The ventilation system for the Hot Gas Facility was extended to handle the ventilation requirements for tthe R-108 Surveillance facility. "Hot" work in R-108 began in June. During this quarter "hot" work was initiated in the new Plutonium Alloy Research facility. Health Physics design criteria for the proposed Clover facility has been submitted to the Engineeering Department. The installation of the air monitoring systems in the new Cryogenics facility and iin the new Ceramics facility is essentially complete. We have embarked on the program of converting all of our personnel monitoring and survey record keeping systems to the IBM system.

S>Portions of two samples of HRT fael solutions were sealed in silica capillary tubes approximately three weeks after they were removed from the reactor and the temperature at which each solution separated into two liquid layers was determined. The values found, 325 er inch per 1 C for one sample and 326 er inch per 1/2 C for the other, are slightly lower than predicted from experiments with synthetic fuel solutions (329--330 C) but the discrepancies are small enough so that they could be accounted for by the minor differences in composition between the synthetic and reactor fuel solutions. There appears to be little reason to believe that the high radiation level which the fuel- solution is exposed to in the reactor has a significant effect on its phase behavior, at least after it has cooled to 2r per ml. Dilution of fuel solution wvith 8 vol.% of 30% H/sub 2/O/sub 2/ and with the same amount of H/sub 2/O increased the two-liquid phase formation temperature about 2 EC but increasing the free D/sub 2/SO/sub 2/ concentration from about 0.017 to 0.04 M raised the immiscibility temperature 19 to 345 C. (auth)

This paper was previously abstracted irom the original language and appears in NSA Vol. 11, as abstract No. 13429. l9565 Selection rules, which occur ln the annihilation of a found nueleon-antinucleon system were examined. The decay of neutral K mesons with allowance for the conservation of combined parity was also investigated. (auth)

Tables of numerical values of all necessary functions and instructions on their use in the stress analysis of circular plates which have a linear thickness-radius relationship, and which are loaded axisymmetrically, are presented. The analysis is based on the classical smalldeflection theory. Emphasis is placed on plates whose thickness at the inner radius is greater than the thickness at the outer radius. However, a limited number of plates for which the opposite is true may also be analyzed by the procedure presented. The limitations on the dimensions of the latter type of plate are explained. (auth)

Analytical programs have been described for uranium recovery processes for aluminum-uranium and zirconiumuranium reactor fuel elements. It is the purpose of this paper to describe the analytical program for the uranium recovery process involving stainless steel-uranium reactor fuel elements. The recovery process consists of a two step dissolution and the regular liquid-liquid solvent extraction using TBP in kerosene. Sulfuric acid is used to dissolve the stainless steel. As a result of the sulfuric acid dissolution the uranium is converted to a slurry. The uranium slurry is then dlssolved in nitric acid. After the nitric acid dissolution the feed material is compatible with the extraction columns used at the Idaho Chemical Processing Plant for other type fuel elements previously described. In order to analyze samples of dissolver solutions for constituents necessary for plant operation, three new analytical methods were developed. These methods are a rapid method for determining uranium, one for nitrate and one for sulfate. Methods are described for urarium, acidity, specific gravity, nitrate, and sulfate in the dissolver solution; also for small amounts of uranium in the extraction column raffinates. Samples of dissolver solution and first cycle aqueous raffinate contain large amounts of fission products. These samples require shielded …