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Pike event - EG&G report

Description: Pre event data and post event data are provided for aerial radiological monitoring associated with the Pike Event, which was reported to have resulted in an immediate venting.
Date: June 22, 1964
Partner: UNT Libraries Government Documents Department

Effects of gamma-ray irradiation on M1 propellant

Description: Samples of M1 single-base propellant were exposed to 10{sup 5}, 10{sup 6}, and 10{sup 7}r of Co{sup 60} gamma rays. Burning rates were determined over a pressure range of 600 to 2600 psi at -40{degrees}, 21{degrees}, and 71{degrees}C. A statistical study indicated no significant change in the burning rate and a small but statistically significant increase (6%) in the exponential factor n after the 10{sup 7}r dose. Visible deterioration resulted, as the color changed from yellow to dark brown and the surface became uneven. In view of these marked visible effects, the slight change in burning rate is surprising. One sample exposed to 5 {times} 10{sup 8}r showed severe blistering, swelling, and contraction, and embrittlement causing fracture. Nitrogen Taliani tests conducted at 110{degrees}C indicated that the decomposition rate is decreased by exposure to 10{sup 5}r, is decreased less by 10{sup 6}r, and remains unchanged after 10{sup 7}r exposure. Chemical analysis showed that the percentage of 2-nitrodiphenylamine increases with dose by a factor of 7 at 10{sup 7}r, while, at the same time, the nitrogen content of the nitrocellulose decreases with increasing dose. This indicates that a substantial part of the nitrocellulose decomposition product had reacted with the diphenylamine stabilizer. It is remarkable that propellant strands obviously modified by exposure to 10{sup 7}r showed little or no change in burning rate.
Date: April 1, 1964
Creator: Abel, J.E.; Mapes, J.E. & Levy, P.W.
Partner: UNT Libraries Government Documents Department

Operation crosscheck

Description: This report consists of three sections covering the three major areas of Lawrence Livermore Laboratory`s participation in Operation Crosscheck. These areas are: Diagnostic Aircraft; Radiochemical Sampling; and Device Assembly and Handling, Barbers Point. The information contained in these sections has been extracted from Crosscheck post-operation reports.
Date: November 6, 1964
Creator: Gilbert, F. C.
Partner: UNT Libraries Government Documents Department

H.E. formulation. Quarterly report, July--September, 1964

Description: Emphasis was placed this quarter on the manufacture of extrudable explosives. This included the recrystallization of PETN which was used to manufacture two batches of LX-02-1 and one batch of RX-02-AK. The materials were examined for composition, extrudability and burning via detonation velocity. Also, a Sunburst and Sunray were performed on the first batch of LX-02 made. Results were all satisfactory except for detonation velocity; some of the channels were yielding somewhat erratic results which could be due either to the test or incomplete mixing. The recrystallization of PETN progressed satisfactorily and the final crystals as viewed under the microscope had the expected appearance.
Date: December 31, 1964
Creator: Osborn, A.G.
Partner: UNT Libraries Government Documents Department

Characteristics of H.E. and H.E. systems. Quarterly report, October--December, 1964

Description: Several samples of HMX to be used in LX-04-1 were particle sized and reported in this report. Most of the lots sized were very similar, with the major differences in the lots being at 2{micro}. Several counts in ``Rainbow`` Lot 26B of LX-04-1, made to obtain a color and weight distribution in several samples, and also a color count made in each sieve on a granulation analysis, show each color to be equally distributed; i.e., {approx} one-third of each color, green, yellow and white LX-04-1 granules, was present in the sample. Photographs and particle size curves of recrystallized PETN used in LX-02-1 are presented. These data were obtained by examining the original PETN used in a lot of LX-02-1, then performing several milling operations and recovering the PETN from the binder for another examination. The majority of the PETN appears to be crushed or broken in the first six passes on the three-roll mill with smaller changes taking place in the two-roll mill. The final {Pi} shows most of the PETN to be concentrated in the 4 to 8{micro} region. Photographs of two production lots of LX-02-1 subjected to a milling operation are also included. A description of the procedure used to recover the PETN from the LX-02-1 binder is included. Several solvents for the LX-02-1 binder and for different H.E.`s are listed. These were examined in an effort to find a new elutant to use with LX-04-1. The effects of different milling times on the binder have been examined by checking the solubilities in several of the solvents.
Date: December 31, 1964
Creator: Carroll, H.B. Jr.
Partner: UNT Libraries Government Documents Department

Physical properties of explosives. Quarterly report, January--March 1964

Description: This work is for the development of testing methods and determination of physical properties of H.E. formulations. An eight-cycle bulk compliance test on LX-04-1 produced a gain in density of 0.017 gm/cc from an average starting-density of 1.858 gm/cc, net gain of .810 gm/cc after one month storage. A group of tensile specimens were tested on three test machines in three locations (Baldwin at LRL, Instrom in Pantex Engineering and Tinius Olsen in Pantex Development), using specimens from a single pressing. The tests showed that these machines are able to produce similar results and are not extremely operator sensitive. It has been determined that LX-04-1 will not flow well enough at a loading of 50 psi to produce orientation grooves for pents. A tabulation of density, tensile strength, strain at ultimate stress, granule size and HMX particle size has been compiled for evaluating the several powder lots of LX-04-1 which have been used. Density and tensile strength appear to be better when PBX 9404 is pressed in the 300-ton (ram) press than it was for the same lot of material which was pressed in the 20-inch hydrostatic press.
Date: December 31, 1964
Creator: Neff, G.W.
Partner: UNT Libraries Government Documents Department

Time-to-explosion thermal initiation test for explosives

Description: A controlled series of experiments have been performed in an attempt to evaluate the Henkin time-to-explosion test as a reactivity test and a quality assurance tool. This was done by comparing the Henkin results with those obtained with the presently used gas chromatograph chemical reactivity test, Two explosives, PBX 9404 and LX-04-1, were tested with four ``inerts``: sodium chloride, lead powder, Silastic Q-300030 and epoxy 633111. The experimental data from the two tests are given; a method for mathematically reducing the Henkin data is considered. The data from the two tests are not in complete agreement. Both predict that the epoxy is reactive with and that NaCl is unreactive with both explosives. However, the Henkin data indicated reactivity of lead powder and Silastic with LX-04-1; the gas chromatograph did not. For PBX 9404, the Henkin test indicated that the lead was borderline reactive and the Silastic unreactive, while the gas chromatograph predicted the opposite. DTA thermograms are included to help interpret the comparison test results. A section in the appendix is devoted to the experimental problems encountered in getting the Henkin test operational. All raw data generated during that time are included in the appendix. In addition, data obtained subsequently with a fairly wide variety of explosives (and propellants) are given; these indicate the present quality of data.
Date: April 1964
Creator: Myers, L. C. & Schuldt, H. S.
Partner: UNT Libraries Government Documents Department

Fulminant properties of high explosives equation of state studies. Quarterly report, January--March 1964

Description: This project consists of (1) essentially routine experimentation, including evaluation of detonation velocity, gap sensitivity testing, and drop weight-impact machine testing; and (2) an experimental program whose goal is the development of high precision one and two-dimensional hydrodynamic data for use in establishing empirical detonation product equations of state.
Date: December 31, 1964
Creator: Trickey, S.B. & West, G.T.
Partner: UNT Libraries Government Documents Department

Development of improved H.E. adhesive systems. Quarterly report for April--June, 1964

Description: A heat aging study in which tensile specimens (aluminum-to-aluminum and aluminum-to-LX-04-1 with Aerobond H-7) were heated to 165 F and aged up to three months has been completed. Aerobond H-7 showed no signs of deterioration when treated in this manner. Butyl glycidyl ether and benzene were tested as diluents for Aerobond H-7; butyl glycidyl ether is an effective diluent but benzene appeared to promote an exotherm. Water permeabilities were remeasured for Adiprene, Aerobond H-7, and Estane to resolve the questionable data gathered earlier. Kel-F, Perm-A-Lon, and Aerobond H-7 are by far the most impermeable to water. The disc extrudability test was run on the new lot of LX-02-1, A-335, both milled and unmilled materials.
Date: December 31, 1964
Creator: Christiansen, H.P.
Partner: UNT Libraries Government Documents Department

Characteristics of H.E. and H.E. systems. Quarterly report, July--September, 1964

Description: Data from sieve analyses of HMX and HMX recovered from LX-04-1 has been compiled for correlation to quality parameters. Particle size distributions on HMX received from LRL have been completed along with other HMX lots specified by them. Sieve analysis of recrystallized PETN was obtained using the now normal procedure for HMX. A statistical investigation of production LX-04-1 examined the dependence of density, elongation, and ultimate tensile strength on particle size distributions ({Pi}) and Viton content. The {Pi} was found to correlate well with density, increases in fines decreasing density. An experimental to determine the effect of binder solvent on HMX {Pi} during removal of Viton from pressed LX-04-1 was performed. This study has indicated no drastic effect on the distribution by the length of time the binder solvent is on the material. HMX and recrystallized PETN surface area measurements obtained form the Perkin-Elmer sorptometer are tabulated in this report. Recrystallized PETN has been examined under the microscope and counts made on the number of crystals with given shape. A frequency distribution was calculated for each group present in a 1 mm{sup 2} area. Experiments to determine the extent of grinding or reduction of particle size of HMX agitated in an ultrasonic vibrator for increasing times have been done. The data have indicated a time of three--five minutes is adequate to disperse agglomerates without undue breaking or grinding of solid crystals. It is possible to do some grinding under severe conditions in the ultrasonic bath.
Date: December 31, 1964
Creator: Carroll, H.B. Jr.
Partner: UNT Libraries Government Documents Department

Modular Nuclear Testing Concept

Description: The continuing concern with efficient utilization of manpower at the Nevada Test Site (NTS) and the seemingly high cost of individual nuclear shots, together with the recent evolution of the L-12 scope, generated some fresh thoughts concerning more efficient procedures for the `average` test. Every time anyone looks at the problem., they tend to analyze the existing conventional approach and try to find the one or two most expensive and `lossy` factors in the can of worms. Usually this turns out to be a problem within the realm of specialization of the particular analyst! People not so directly concerned with the program tend to look for, or wish for, or even `invent` miracles`. Our present techniques appear to be the sum (and possibly even the product) of many small contributions which have all been beaten down to the same level of importance. Such a situation in any systemic problem is usually symptomatic of the need for fairly violent departures in the aver-all system approach, at least in thinking. This report proposes and details a modular nuclear testing concept.
Date: July 1, 1964
Creator: Wouters, L. F.
Partner: UNT Libraries Government Documents Department

Calculation of the Shock Wave From an Underground Nuclear Explosion in Granite

Description: The capability of calculating the close-in effects of the shock wave from an underground nuclear explosion has been demonstrated. Agreement was obtained between calculation and measurements using .a spherically symmetric, hydrodynamic, elastic-plastic code called SOC for the Hardhat event, a 5-kiloton nuclear detonation in granite. This capability is dependent upon having a more or less complete de scription of the elastic and dynamic properties of the materials involved. When this information is available, agreement within the limits of uncertainty of the measurements can be calculated for peak pressures, peak particle velocities, shock wave time of arrival, and pressure pulse shapes.
Date: May 7, 1964
Creator: Butkovich, T. R.
Partner: UNT Libraries Government Documents Department

Outline: N-Reactor capability report

Description: The flexibility of N-Reactor will be demonstrated by comparing (in tabular form) the basic 4000 Mw Pu-only, weapons grade case with a 4800 Mw co-product, weapons grade mode including production of Po-210 and PU-238. The competitive position of N-Reactor in the AEC complex will be illustrated in a table summarizing 1964 production studies.
Date: September 1, 1964
Creator: Dickeman, R. L.
Partner: UNT Libraries Government Documents Department

The Effects of Nuclear Weapons

Description: This book is a revision of "The Effects of Nuclear Weapons" which was issued in 1957. It was prepared by the Defense Atomic Support Agency of the Department of Defense in coordination with other cognizant governmental agencies and was published by the U.S. Atomc Energy Commission. Although the complex nature of nuclear weapons effects does not always allow exact evaluation, the conclusions reached herein represent the combined judgment of a number of the most competent scientists working the problem. There is a need for widespread public understanding of the best information available on the effects of nuclear weapons. The purpose of this book is to present as accurately as possible, within the limits of national security, a comprehensive summary of this information.
Date: February 1, 1964
Creator: Glasstone, Samuel
Partner: UNT Libraries Government Documents Department

[News Clip: Dunbar]

Description: Video footage from the WBAP-TV television station in Fort Worth, Texas, covering a news story.
Date: November 26, 1964
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Script: Dunbar]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about Dunbar High School's first annual Homecoming Parade and Pep Rally, which included a parade to top off a big Thanksgiving dinner; the schools Cavaliers drill team of the National Defense Cadet Corps put on a show, and the parade includes floats and cheerleaders, and ends up at the school for the football game between the Dunbar Wildcats and the I.M. Terrell Panthers play at Farrington Field for a spot in the District Championships. The Panthers win, 14 to 12 over Dunbar.
Date: November 26, 1964
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections