An outbreak of ruptures occurred in the KE Reactor during September, 1956. Radiometallurgical examination of three of these ruptures was requested by the IPD Reactor Fuels Operation. Examination of a fourth rupture which occurred in December, 1956, was later included in the original request. This report presents the results of the requested examination work.

The octant monitors are an improvement over the early sub-pile flux monitors, but they still do not monitor the flux in the active zone of the reactor. Chambers located within the pile active zone would give the desired information but the inpile environment is too severe to allow a reasonable life for these chambers. A beam hole monitor is suggested to provide the desired flux monitoring. The problem of reactor flux monitoring is discussed. The beam hole monitors have the advantage of providing adequate active zone coverage. Calculations were made to show the neutron current and current density at the chamber location as a function of the collimation of the detector assembly. These curves show the present sub-pile and octant monitors are sensitive primarily to the flux in the pile reflector rather, than in the active zone. The beam hole monitors can be made sensitive to the active zone flux only. Sufficient chamber current can be obtained to operate available trip circuitry. It is recommended that experimental work be started to prove out these beam hole monitors so any new reactor program may take advantage of them and that the monitoring of present piles can be improved.

Summarized herein is the available information on the subject, ``Reactor Gamma Flux Monitors.`` Apparently, a misunderstanding exists between the U.K. representatives and the related information presented by Dr. Nilson at the Argonne meeting July 24 and 25th. Dr. Nilson`s reference at the US/UK meeting was to the use of gamma-compensated neutron detection chambers at Hanford. Such chambers have been designed and used in one old reactor for a short period as a prototype for a detector for the octant monitor system. No gamma compensated chambers are in any of the reactors at present. Under development is a neutron flux indicating system which will operate in the intermediate range (10{sup {minus}7} to 10{sup {minus}1} full power) and will use commercially available gamma compensated ion chambers. These will be used to provide signals for reactor period meters. At Hanford there has been no operating experience with gamma flux monitors as such or with extensive in core neutron flux monitors. Characteristics of systems under development are given for information as well as current information on the octant system.

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 authority of an officer arresting a person for violation of the anti-racing statute, article 795, P. C., to take such persons before a magistrate immediately, despite the demand of such person that he be released upon his signing a promise to appear later before a designated court at a specified time and place.

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: Does the definition of milk, as provided in Section 1(A) of Article 165-3, permit the use of any other term, such as "All Jersey Milk," "All Guernsey Milk," etc., to designate the product, or should milk, regardless of breed source, be labeled simply "Milk" under a uniform designation of the food product?

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: Does a group life insurance policy issued to a securities dealer-seller covering purchases of securities come within the permitted coverages of Article 3.50, Texas Insurance Code?

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 the real property owned by Alcoholics Anonymous of Austin is taxable.

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 the Civil Defense and Disaster Relief, Vocational Schools, Civil Air Patrol and Texas Turnpike Authority are exempt from the registration fees of vehicles owned and used by them.

Report describing the proceedings of the second symposium on the application of pulsed neutron source techniques.

The test detailed in this report is a part of a program seeking ways to reduce the amount of radioactivity in reactor effluent water. Arsenic-76 is a major contributor to the gastrointestinal, radiation dose received by downstream users of river water. Phosphorus-32 is the principal radioisotope in the flesh of whitefish caught in the vicinity of the Hanford reservation. Recent activation analyses of the commercial grade sulfuric acid used in process water treatment have indicated that this acid may be an important source of the parent elements that are transformed to arsenic-76 and phosphorus-32 in the reactors. The purpose of this test is to determine if the impurities in commercial grade sulfuric acid have a significant effect on the release rates of arsenic-76 and phosphorus-32 to the river in reactor effluent water.

This report details a meeting held for the purpose of acquainting all interested parties with the present problems being encountered in the canning process. A short discussion of previous canning methods and their problems was presented as background information. The search for a bonding agent to bond the aluminum can to the uranium core covered such materials as AlSi, lead, tin, aluminum, and copper. Mach of this early work was guided by the University of Chicago. The Grasselli (du Pont) Laboratory developed the triple-dip process where the uranium was first heated in a copper-tin bath, rinsed in a tin bath, then canned in an AlSi bath with AlSi as the bonding agent. It appeared at this time that the best AlSi composition to use was a little toward the aluminum side of the eutectic composition of 12.5 percent silicon. A current problem and the one with which this meeting was primarily concerned is that of bond failure where the bond between the can and core is broken. Variables found in this most recent study to have an effect on the strength or quality of the bonding layer are discussed.

Summary: A survey was made of KAPL personnel currently exposed to radiation relating to their previous work with radiation or radioactive materials.

By the use of a radically new method they have succeeded in identifying unambiguously an isotope of element 102. In other careful experiments conducted over a period of many months they find that they are unable to confirm the element 102 discovery work of Fields et al. reported in 1957. The experiments at Berkeley were performed with the new heavy ion linear accelerator (HILAC) over a period of several weeks and culinated the chemical identification of an isotope of fermium (Fm{sup 250}) as the daughter of an alpha-particle-emitting isotope of element 102 (102{sup 254}). The method used to detect the isotope of element 102 was essentially a continuous milking experiment wherein the atoms of the daughter element 100 were separated from the parent element 102 by taking advantage of the recoil due to the element 102 alpha particle decay. The target consisted of a mixture of isotopes of curium (95% Cm{sup 244} and 4.5% Cm{sup 246}) mounted on a very thin nickel foil. The target was approximately 0.5 mg/cm{sup 2} thick and was covered with 75 {micro}gm/cm{sup 2} aluminum to prevent curium 'knockover'. The curium was bombarded with mono-energetic C{sup 12} ions at energies from 60 to 100 Mev. The …

In many score of experiments conducted in various ways over a period of many months they find that they are unable to confirm the element 102 discovery work of Fields et al. reported in 1957. These experimenters ascribed to an isotope of element 102 an alpha particle activity having an energy of 8.5 {+-} 0.1 Mev and a half-life of approximately 10 minutes. It was reported to be produced by bombardments of a 1 mg/cm{sup 2} curium target with 0.03-0.10 mter-microamperes of C{sup 13} ions of about 90 Mev energy in the internal beam of the Nobel Institute 225 cm cyclotron. Our attempts to reproduce this activity were made with the monoenergetic ion beam available from the Berkeley heavy ion linear accelerator (HILAC). Curium with a similar isotopic composition was used, except that instead of one target they used six separate electroplated targets, four with 0.4 mg/cm{sup 2} curium and two with 0.1 mg/cm{sup 2} curium. These were mounted in vacuum so that the heavy ion beam could pass through and knock the transmutation recoils into 0.9 mg/cm{sup 2} palladium foils. After a suitable bombardment the six catcher foils were dissolved in a few drops of concentrated aqua regia and …

By the injection of hormones and other agents which have been reported to influence scar formation, attempts were made to interfere with normal wound healing after the production of moderate second degree burns in pigs. It was hoped that some information on the development or prevention of hypertrophic scars and keloids might be gained from this experiment. Systemic administration of Doca, cortisone, and toluidine blue, and local injection of cortisone, histamine, and hyaluronidase neither delayed healing nor altered significantly the histologic processes involved in the restoration of dermal tissues. (auth)

Report presenting an investigation to determine the aerodynamic characteristics in pitch at a Mach number of 6.8 of hypersonic missile configurations with cruciform trailing-edge flaps and all-movable control surfaces. Testing indicated that all-movable controls on the flared-afterbody model should be capable of producing much larger values of trim lift and of normal acceleration than the trailing-edge-flap configuration. Some of the configurations tested include body alone, body with 5 degree fins and trailing-edge flaps, and body with 10 degree flare and all-movable controls.

"Characteristic exhaust velocity was measured for a small range of mixture ratios with four different injectors. Performances of parallel-sheet, like-on-like, and triplet injectors were about the same, but a parallel-jet injector had a much lower performance. Performance values for ammonia-oxygen were slightly lower than for heptane-oxygen" (p. 1).

"The static aeroelastic divergence characteristics of a delta-plan-form model of the canard control surface of a proposed air-to-ground missile have been studied both analytically and experimentally in the Mach number range from 0.6 to 3.0. The experiments indicated that divergence occurred at a nearly constant value of dynamic pressure at Mach numbers up to 1.2. At higher Mach numbers somewhat higher values of dynamic pressure were required to produce divergence" (p. 1).

Memorandum presenting an investigation to determine the feasibility of a high-performance transonic axial-flow compressor stage with a weight flow of 40 pounds per second per square foot of frontal area. A transonic axial-flow inlet stage with a hub-tip ratio of 0.35 and an axial Mach number of approximately 0.75 was designed and fabricated. Results regarding overall rotor performance, flow parameters, radial matching of blade-element sections, and comparison of blade-element parameters with design rules are provided.

Particle detection instruments may be divided into two classes; devices which see the actual path of the particle, and counting devices which indicate the passage of a particle. Examples of each class are given, the characteristics of each example are tabulated, and the uses for each device are discussed. (D.E.B.)

A report about the absorption spectra of the thallium-dithizone mixed-color system. An analytical procedure based on this system is given which is applicable to pure solutions.

"The e-folding time for the free-molecule pump-out time of the vacuum tank used for the β⁺ ray experiment (N¹⁹ at 20°C) is found to be of the order of 46 millisec, and that used for the Felix experiment (D₂ at 20°C) of the order of 12 millisec. In the Felix tank a particle bounces off of the walls on the average about 30 times before escaping, hence a "getter" material coated on the walls of the tube should result in a slightly more rapid pump-out time."

Report documenting the systems, operating procedures, and design of the Oak Ridge National Laboratory's gas-cooled reactor.

Report discussing an investigation to determine the aerodynamic characteristics of hypersonic missile configurations with cruciform trailing-edge flaps with all-movable control surfaces. The all-movable controls were found to produce much larger values of trim lift and normal acceleration than the trailing-edge-flap configuration.