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Hastelloy-N fuel cladding tube specimens were stress-rupture-tested in-pile at the Oak Ridge National Laboratory. Two cladding heats were tested at 1400/sup 0/F; hoop stresses ranged from 8000 psi to 26,000 psi. The tubes were then shipped to the Atomics International Hot Laboratory where cladding visual examination, dimensional measurement, and metallographic analysis were performed. Average cladding creep ductility was 1.2%. Cladding failures were intergranular, with some secondary cracking noted. Both cladding ductility and rupture life were reduced by irradiation.

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: Under H. B. 832, Acts of the 60th Legislature, Regular Session, 1967, Chapter 227, page 523, which amended Article 1.13, Title 122A, Taxation-General, V. C.S., whether the Comptroller is required to refund the forfeited discount or deductions, provided in Article 20.05 (E) and the penalties and the interest under Article 20.05 (H) of said Title 122A, when the taxpayer is able to show that his return was mailed on time but postmarked late, and even though the event occurred prior to the effective date of the 1967 amendment.

The accompanying table lists the presently selected parameters for the twelve cloud chambers. The chambers are numbered consecutively from 4 through 15 as they are lined up in the bunker. The lowest number is closest to the source. All except the first chamber have some thin metal filters to attenuate the flux and harden the spectrum. Cloud chambers 10, 12, and 14 are shielded by a collimator with about 200 pinholes in it. The flux in these chambers is attenuated by the ratio of the pinhole area to total beam area which is a factor of 50. Various gases and gas pressures are used to obtain suitable track lengths and interaction cross sections. Neon, argon, and krypton are used to obtain photo electrons. Hydrogen is used to obtain Compton electrons.

Hastelloy-N strip specimens were irradiated in the Oak Ridge Research Reactor at temperatures of 1330 to 1390/sup 0/F, to neutron doses of 1.8 to 2.6 x 10/sup 20/ nvt thermal, l.4 to 2.0 x 10/sup 19/ nvt fast. Twelve irradiated specimens were selected for testing from each of two heats, 0143 (0.010 in. thick) and 5911 (0.015 in.). Six specimens in each heat were as-received, the other six were as-processed. Processing steps included chromizing, a simulated coating firing cycle, diffusion treatment, and straining to simulate tube straightening. In-cell fatigue tests were performed by reverse-bend cycling over mandrels of opposing radii at one cycle per minute, in helium, at 1400/sup 0/F. The twelve specimens tested at strain ranges of 0.61 to 0.75% had an average fatigue life of 97 cycles. Only seven of the specimens tested at strain ranges of 0.31 to 0.37% failed; five remained intact after 25,000 cycles. The average fatigue life for all 0.31 to 0.37% specimens was 15,840 cycles, with no weighting factor used for intact specimens. Experimental results were four times greater than the predicted fatigue life at the higher strain range, fifty times greater at the lower. The Manson method for prediction of Hastelloy-N fatigue …

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 S. H. 94, 60th Legislature (Article 6252-17, Vernon's Civil Statutes) requires open meetings of the State Textbook Committee, authorized under Article 2654-4, Vernon's Civil Statutes.

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 Section 17 of House Bill 266, Acts of the 60th Legislature, R. S., 1967, Chapter 565, amending Section 3 of Article 2338-19, in reference to the enlargement of the jurisdiction of the Domestic Relations Court of Brazoria County.

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 a policy for group life insurance covering employees of the Comptroller's Department, executed prior to the effective date of Senate Bill 294, Acts of the 60th Legislature, Regular Session, Chapter 437, authorizes the Comptroller to make premium payments therefor from State funds, and certain related questions.

This report summarizes the results of the first run made in the Nuclear Safety Pilot Plant using Zircaloy-2 clad UO2 irradiated to 20,000 MWD/T and reirradiated shortly before the run to replenish the inventory of short-lived fission products.

Tables and graphs constructed for electron probe x-ray spectrometers equipped with crystal changers and calibrated for LiF crystals in angstroms.

This report presents the gravity data of drill hole Ue19n at the Nevada Test Site.

In recent years the search for life-forms at the earliest periods of geological time has been continued not only at the morphological level but also at the molecular level. This has been possible as a result of the increase in the biochemical knowledge and with the advent of analytical techniques that are capable of describing the intimate molecular architecture of individual molecules in acute detail. The fundamental premises upon which this organic geochemical approach rest are the following: that certain molecules, possessing a characteristic structural skeleton, show a reasonable stability to degradation over long periods of geological time; that their structural specificity can be understood in terms of known biosynthetic sequences; and that their formation by any non-biological means is of negligible probability. In this manuscript it is proposed to critically re-examine these premises and to establish criteria whereby one can differentiate molecules derived from biological systems from those that have their origin in non-biological processes. The importance of establishing such criteria lies in the significance these criteria have in determining whether life exists, or has existed, on other planets. Within the very near future it may be possible to provide an initial answer to this question when the first …

Production Test-080 authorized the conduct of certain physics tests during the deactivation of D Reactor. The primary objective of the test was to measure certain physics parameters which could be used to check current computational models. In this report are presented a brief chronology of the tests and a tabulation of the experimental data. In general, data processing has not progressed beyond simple reduction of the raw experimental data to a form more easily used in future analytical comparisons and evaluations. Tests included a test for excess reactivity of the reactor by calibration of a control rod, a test for evaluation of experimental technique for measuring the effect of safety systems, tests for data on space-dependent reactor transients, coupling coefficients, etc.

"The surficial deposits of Yucca Flat, divided into eleven units, are shown at a scale of 1:48,000 (fig. 1A). Major rock types of the bordering bedrock areas are indicated, as are the lithologies of portions of the surficial units. The map explanation (fig. 1B) includes a description of the surficial units." (page 2)

Summary of the Technology Assessment Seminar proceedings held on September 21 and 22, 1968, regarding the importance of technology assessment, development, and responsibility in an increasingly technology-dependent society. Attendees consisted of Members of Congress and various technology experts and scholars .

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This report presents details of the activities of Douglas United Nuclear at the Hanford site during the month of August 1967.

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: Validity of certain provisions of House Bill 78, Acts of the 60th Legislature, Regular Session, 1967, Chapter 680, Page 1785 (relating to fees of county clerks of county courts) which purport to repeal certain fees for attorneys and physicians under court appointment in certain cases.

The first four process flowsheets were drawn to show the division between the high and low pressure fuel and blanket systems. This necessitated the repetition of certain equipment which fell at the dividing points, such as the letdown heat exchangers, the feed pumps, etc. They were also designed to make it possible to cut the sheets and join them to make one large flowsheet without repetition of equipment or lines. In general the flowsheet line numbers on the fuel side are a 100 series and the corresponding lines on the blanket side are in a 200 series; i.e., lines 102 and 202 will have the same function in their respective systems. (auth)

VIDCAL is the first of three codes in the data reduction package. This code uses punch card input to calibrate and label data from BCD data tapes.

In this fourth semiannual issue, the reactor and power data from the Hanford Production Reactors are shown for the six-month period January through June, 1967, together with data for the three preceding six-month periods. For comparison purposes, the two years of experience will continue to be shown by dropping and adding a six- month period with each semiannual issue.

Declassifled 28 Nov 1973. The S10FS-3 Reactor was disassembled and examined. The core was removed from the core vessel and all 37 fuel elements were subjected to a nondestructive screening examination followed by a detailed examination of selected elements. The screening examination consisted of visual inspection, dimensional measurement, eddy current scanning for hydrogen distribution, and gamma scanning. The subsequent detaiIed examination of selected elements included fission gas measurement, determination of hydrogen permeation rate, inspection of disassembled fuel elements, dimensional measurement of fuel, fuel density determination, hydrogen analysis, and fuel and cladding metallography. No defects or unexpected results were observed, and the examination firmly supported the conclusion that all the fuel elements completed the reactor operation in good condition. (auth)

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