This report covers the S-I-5-B-M* fuel irradiation in the GETR Maritime Loop during the fourth quarter of fiscal year 1961. The data are summarized in Section II.

Reactivity measurements made by the pulsed neutron technique were compared with results obtained by conventional techniques. The pulsed neutron results were in good agreement with those obtained by stable period measurement and rod drop. Differential effectiveness of partially inserted rods was shown to be well represented by elementary perturbation theory. Finally, the pulsed neutron technique was found to be the only good method for measurement of large reactivity changes.

A great many special methods for the statistical analysis of sensitivity or quantal response data have been developed during the past century. This paper demonstrates that many of these techniques can be considered in the light of non-linear regression methods which have been made more tolerable in recent years with the prevalence of high-speed computers.

Despite the presence of a large number of ganrma rays in gross fission products, the rather poor energy resolution of NaI detectors has limited the application of gamma scanning to the more prominent fission products. The advent of lithium-drifted germanium semiconductors makes it possible to perform more comprehensive analyses on these complex spectra. The high energy resolution of these detectors makes them attractive, despite their low efficiency.

This report describes the simplified methods used to obtain the magnetic property data required to interpret an aeromagnetic survey of 5,000 square miles in the general area of the Nevada Test Site.

The surveillance photography of underground nuclear detonations at NTS was engineered by EG&G to furnish the following information on unexpected venting: (1) establish when, with respect to zero time, the venting occurred; (2) record the point or points of emission of the venting gases; (3) show the colors, if any, of the venting gases; (4) the direction of cloud travel; and (5) dimensions and volume of the cloud as a function of time. In addition, the film records provide a color documentary film including a record of gross surface motion and a record of unexpected surface phenomenon (such as in Longshot). Surveillance coverage starts at minus 5 seconds and continues to plus 30 minutes. This report describes the typical photographic program setup, films used, and film processing.

The objective of this test is to measure the emergency reactor flow through the high pressure crosstie line (HPCT) after the removal of the flow limiting orifices in the HPCT. The flow limiting orifices in the HPCT were removed on July 5, 1960, as per Design Change No. 383. The removal of the flow limiting orifice allowed increased emergency flow and brought the crosstie coolant flow more nearly into conformance with the coolant supply reliability criteria. The purpose of this test is to measure emergency flow under certain conditions so that available flow under all conditions may be more precisely determined.

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Reactor support charge designs and patterns have been numerous and varied over the past few years, the basis for acceptance of a particular support loading being determined from a consideration of fabrication costs and the hydraulic characteristics of the proposed dummy load as it applies to a particular reactor. Since the first three or four dummy pieces downstream of the fuel column (and upstream of the column in a spline tube) are discarded after the irradiation process, it is desirable to use tubular dummies for this portion of the support charge which are less expensive to fabricate and which are easily identified during the charging-discharging process. However, there exists a remote possibility that one or more tubular pieces could be inadvertently placed in a rear nozzle resulting in a flow restriction in the process tube. These arrangements of tubular support pieces in the dummy pattern, i.e., tubulars positioned against the fuel column and/or in the process tube rear nozzles, have been hydraulically tested to determine if there is adequate and unrestricted flow at normal operating header pressures.

The objective of this irradiation is to further verify the corrosion rate of tubular-type fuel elements under conditions of high specific power and central core temperatures. This fuel will be the inner tube only of an NPR fuel assembly. As in previous tests, this inner tube rupture will be used to further substantiate the rupture detection instrumentation that is being used in the development of the NPR. Previously unirradiated fuel will be used in this test. The reactor is to operate at full power during the test. Permission is requested for charging two tubular elements The top element will have attached to it a hydraulic mechanism for opening a defect in the outer surface of the tube. The second or bottom element, will be used as a heater element to maintain loop temperature.

Three hot die size (HDS) fuel elements charged for the HDS equivalency test, PT-IP-781-A, failed during irradiation (August, 1965) as a result of severe ledge and groove corrosion. Examination of comparison pieces revealed that ledge and groove corrosion was the most severe at the top of the downstream end of the downstream ten pieces as positioned in the process tube. In the case of HDS fuel, the downstream end is the top or cap end of the piece as it is fabricated. It was speculated that ledge and groove corrosion could be an interaction between the HDS fuel assembly process and reactor operation. For this reason, studies were initiated to determine the effect of HDS process variables upon ledge and groove corrosion in out-of-reactor tests. This report summarizes the results of testing to determine the effect process variables have upon grain size and hardness of the aluminum cladding.

This report is about the Nile River and the civilization and its development

A spectrographic method using d-c arc excitation in a controlled atmosphere was developed to analyze for seven impurity elements in radioactive hafnium samples. Analysis requires as little as 35 mg of hafnium oxide. (auth)

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A simple mathematical model was developed to describe the steady-state release rate of gaseous fission products from porous ceramic fuels in low- permeability containers. The resulting equations are used to analyze experimental release rate results obtained from a UC/sub 2/-fueled graphite fuel body enclosed in a low-permeability impregnated graphite container. The relative release rates of the fission-product species Kr/sup 85m/, Kr/sup 88/, and Xe/sup 133/ were predicted with reasonable success. Absolute-rate predictions were not possible due to lack of information on true permeability and porosity profiles in the graphite container. (auth)

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Tests were conducted to assure proper operation of the control-rod mechanisms of the Shippingport Pressurized Water Reactor under normal operating conditions. (C.J.G.)

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, Crawford Martin, regarding a legal question submitted for clarification;Construction of S.B. 667,Acts of the 61st Legislature,R.S.1969,relating to licensing of "psychologists".

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, Crawford Martin, regarding a legal question submitted for clarification: Changing salaries of Justice of the Peace

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, Crawford Martin, regarding a legal question submitted for clarification: Whether certain securities are acceptable securities for school depositories under Article 2832 or Article 2832c, Vernon's Civil Statutes, 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, Crawford Martin, regarding a legal question submitted for clarification; Discretion of District Attorney to refrain from filing forfeiture suits under Article 725d, Penal Code, and whether proposed alternative procedures are prohibited.