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International conference on bone mineral measurement, October 12--13, 1973, Chicago, Illinois

Description: From international conference on bone mineral measurement; Chicago, Illinois, USA (12 Oct 1973). Abstracts of papers presented at the international conference on bone mineral measurement are presented. The papers were grouped into two sessions: a physical session including papers on measuring techniques, errors, interpretation and correlations, dual photon techniques, and data handling and exchange; a biomedical session including papers on bone disease, osteoporosis, normative data, non-disease… more
Date: December 31, 1973
Partner: UNT Libraries Government Documents Department
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CRITICAL FIELD FOR SUPERCONDUCTIVITY AND LOW-TEMPERATURE NORMAL-STATE HEAT CAPACITY OF TUNGSTEN

Description: We have measured the critical magnetic field for superconductivity In tungsten from 5.5 to 15 mK using a {gamma}-ray anisotropy thermometer, and we have measured the heat capacity between 0.35 and 25 K. Analysis of the data gives H{sub 0} = 1.237 Oe for the 0 K critical field, T{sub c} = 16.0 mK for the critical temperature, {gamma} = 1.008 mJ/mole K{sup 2} for the coefficient of the electronic heat capacity, and {Theta}{sub 0} = 383 K for the 0 K Debye temperature. The measured values of the c… more
Date: March 1, 1973
Creator: Triplett, B. B.; Phillips, N. E.; Thorp, T. L.; Shirley, D. A. & Brewer, W. D.
Partner: UNT Libraries Government Documents Department
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Measurement of p p --> p x Between 50-GeV and 400-GeV

Description: The authors present measurements of the invariant cross section for the inclusive reaction p + p {yields} p + X in the region 0.14 < |t| < 0.38 GeV{sup 2}, 100 < s < 750 GeV{sup 2} and 0.07 < M{sub x/s}{sup 2} < 0.20.
Date: September 1, 1973
Creator: Abe, K.; De Lillo, T.; Robinson, B.; Sannes, F.; /Rutgers U., Piscataway; Carr, J. et al.
Partner: UNT Libraries Government Documents Department
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Inclusive gamma K0(s) lambda0 and anti-lambda0 production by 205-GeV/c pion proton interactions

Description: Neutral decays and {gamma} conversions have been analyzed in an exposure of the NAL 30 hydrogen bubble chamber to 205 GeV/c pions. This paper presents preliminary results on inclusive cross sections for the production of {Upsilon}'s, K{sub s}{sup 0}'s, {Lambda}{sup 0}'s and {bar {Lambda}}{sup 0}'s by 205 GeV/c {pi}{sup -}p interactions. The experiment was done in the NAL 30 hydrogen bubble chamber. Six hundred and sixty-four neutral decays (or conversions) found in a scan of 3058 {pi}{sup -}p i… more
Date: August 1, 1973
Creator: Bogert, D.; Hanft, R.; Huson, F. R.; Ljung, D.; Pascaud, C.; Pruss, S. et al.
Partner: UNT Libraries Government Documents Department
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Inelastic p p Scattering at 200-GeV/c

Description: The authors have measured the doubly differential cross section sd{sup 2}{sigma}/dtdM{sup 2} for the reaction p + p {yields} p + X using 200 GeV incident protons in the external beam at the National Accelerator Laboratory. Here t is the square of the four momentum transfer to the target proton, M{sup 2} is the mass squared of X, and s is the total center of mass energy squared. They cover the region of 0.019 < |t| < 0.19 GeV{sup 2} and 1 < M{sup 2} < 60 GeV{sup 2}. Interesting struc… more
Date: January 1, 1973
Creator: Childress, S.; Franzini, P.; U., /Columbia; Lee-Franzini, Juliet; McCarthy, R.; Schamberger, R., Jr. et al.
Partner: UNT Libraries Government Documents Department
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Analysis of an analytical technique for distributing air sampling locations around nuclear facilities

Description: A new analytical mechanism for distributing air sampling locations around nuclear facilities, including reactors, fuel fabrication, fuel reprocessing and research centers, has been devised. This method was developed to facilitate the efficient incorporation of past experiences into environmental surveillance programs for now or developing installations. The technique provides an initial distribution of air samplers around a site which correlates well with placements on sites which have been occ… more
Date: May 1, 1973
Creator: Waite, D.A.
Partner: UNT Libraries Government Documents Department
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An Automatic Control System for a Manufacturing Process in an Explosive Environment

Description: The authors describe a state-of-the-art automatic control system as it is used to control a manufacturing process in an explosive environment. Compact, explosion proof sensing devices and a custom designed interface to a controller input are discussed.
Date: June 1, 1973
Creator: Page, D. O & Draut, C. F.
Partner: UNT Libraries Government Documents Department
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Automatic Control System for Dispensing Precise Amounts of FInely Divided Solids

Description: A device for automatic dispensing of precise amounts of finely divided solids has been developed. Precision is a function of dispensing time. Smaller than gram quantities may be dispensed at a rate of about 1/3 g/min with a precision corresponding to a weight range of about 0.001 g for a series. The process consists in moving the material with the effect of the vibratory motion of a miniature air-powered vibrator. Operation is automatically controlled by the electronic system of the weighing un… more
Date: June 1, 1973
Creator: Osborne, J. M.; McGraw, H. R. & Draut, C. F.
Partner: UNT Libraries Government Documents Department
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Inclusive spectra of secondaries from 200 GeV/c proton-proton interactions detected in the NAL 30-inch Bubble Chamber-wide gap spark chamber hybrid system

Description: Preliminary data are presented on {pi}-production in inclusive pp interactions at 200 GeV/c using the NAL 30-inch bubble chamber and downstream wide-gap spark chambers. Correlations between {pi}{sup -}'s are studied. No strong short-range correlation effect is seen in contrast to ISR results. Further details of the physical characteristics of the hybrid system and track reconstruction are described in accompanying papers. In this paper they present preliminary results on correlations between {p… more
Date: August 1, 1973
Partner: UNT Libraries Government Documents Department
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Track reconstruction in the NAL 30-inch bubble chamber-wide gap spark chamber hybrid system

Description: The authors describe the track reconstruction and bubble chamber/spark chamber hookup software used in the NAL hybrid spectrometer. Results for 15-200 GeV/c tracks are presented. Further details of the physical characteristics of the hybrid system and preliminary physics results are presented in accompanying papers.
Date: January 1, 1973
Partner: UNT Libraries Government Documents Department
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Transmission scanning II

Description: From nuclear science symposium; San Francisco, California, USA (14 Nov 1973). Work has been continued on the development of techniques for imaging spatial elemental distributions by means of differential absorption about the K- absorption edge of the particular element Z. A method to correct for spurious effects due to differential absorption in overlying absorber is described. Initial clinical studies of thyroid iodine images on patierts are presented. Application of absorption edge transmissi… more
Date: January 1, 1973
Creator: Alberi, J. L.; Kraner, H. W.; Bradley-Moore, P. & Atkins, H. L.
Partner: UNT Libraries Government Documents Department
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Comparison of Ge(Li) and anti-Compton systems for measurements of environmental samples

Description: There are numerous reasons for performing environmental measurements for routine health or safety monitoring and to determine the movement of trace elements or radionuclides through our environment to man. This is often a requirement for the licensing of nuclear power reactors, as well as many other meteorological or environmental research experiments. In this paper a variety of sensitive low-level counting systems are discussed from an analyst's viewpoint, centering on a variety of Nal(Tl) and… more
Date: January 1, 1973
Creator: Wogman, N. A.
Partner: UNT Libraries Government Documents Department
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PEP project status

Description: From seminar on high-energy accelerator science; Tokyo and Tsukuba, Japan (5 Nov 1973). Parameters for the PEP (Proton-- Electron-- Positron) colliding beam facility and the status of the proposed facility are outlined. - The design study has been a joint effort by SLAC and LBL. (WHK)
Date: November 1, 1973
Creator: Lambertson, G.
Partner: UNT Libraries Government Documents Department
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Welding austenitic steel clads for fast reactor fuel pins

Description: ABS>From symposium on fuel and elements for fast reactors; Brussels. Belgium (2 Jul 1973). Developmental programs aimed at fabrication of stainless steelclad PuO/sub 2/ fuel pins are described. Information and data are included on welding fast reactor fuel cans, methods of reducing the incidence of weld cracking, effects of weld stresses, and fuel plug design. (JRD)
Date: January 1, 1973
Creator: Papeleux, P.; Flipot, A. J. & Lafontaine, I.
Partner: UNT Libraries Government Documents Department
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Computer studies of replacement sequences in solids associated with atomic displacement cascades

Description: From third international corference on atomic collisions in solids; Gatlinburg, Tennessee, USA (23 Sep 1973). Focused sequences of replacement collisions have been studied, especially in association with radiation damage cascades. Radiation-damage events are simulated using a computer program based on binary collision approximations. The results are averaged over a complete set of initial directions of the primary knock-on atom for each primary energy to obtain quantities of physical interest f… more
Date: January 1, 1973
Creator: Holmes, D.K. & Robinson, M.T.
Partner: UNT Libraries Government Documents Department
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Calculations of the absorbed dose to a man immersed in an infinite cloud of $sup 85$Kr

Description: The dosimetry for a person exposed to a large cloud of /sup 85/Kr, supposed to be uniformly distributed in air, is considered. Methods are described that are general, and will also apply to exposure to an infinite cloud of other noble gases. Computer calculations are used for estimates of dose in an anthropomorphic phantom. The decay scheme of /sup 85/Kr which is taken from MIRD Pamphlet No. 6 is included. There is only one photon and its intensity is only 0.41% per disintegration. (auth)
Date: January 1, 1973
Creator: Snyder, W.S.; Dillman, L.T.; Ford, M.R. & Poston, J.W.
Partner: UNT Libraries Government Documents Department
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Computer-operated quartz differential dilatometer

Description: From international symposium on thermal expansion of solids; Lake of the Czarks, Missouri, USA (7 Nov 1973). A quartz differential dilatometer was interfaced with a Digital Equipment Corporation PDP-8 computer to automatically measure the thermal expansion of solids from 300 to 1000 K. A Carson-Dice Electronic-Mechanicai Micrometer, readable to 2.5 x 10/sup -6/ cm, was employed for length-change measurements accurate to 2.5 x 10/sup -5/ cm. Calibrated Pt/Pt/ sub 90/Rh/sub 10/ thermocouples were… more
Date: January 1, 1973
Creator: Kollie, T. G.; McElroy, D. L.; Hutton, J. T. & Ewing, W. M.
Partner: UNT Libraries Government Documents Department
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High-voltage technology for the LASL implosion-heating experiment

Description: The implosion-heating power supply uses four 125-kV generators in series. Each generator consists of a fast 125-kV pulse-forming network made up of capacitors attached to a 1m-wide parallel-plate transmission line which is fed through multiple cables from a 2.5- mu F, 0.5- mu H Marx bank charged to 180 kV. To simplify construction it was decided to do without oil or water for high- voltage insulation and grading. The developments described here are: (1) a low- inductance connection between the … more
Date: January 1, 1973
Creator: Hammel, J. E.; Henins, I.; Marshall, J. & Sherwood, A. R.
Partner: UNT Libraries Government Documents Department
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Influence of experimental end points, dose, dose rate, neutron energy, nitrogen ions, hypoxia, chromosome volume and ploidy level on RBE in Tradescantia stamen hairs and pollen

Description: From effects of neutron irradiation upon cell function; Neuherberg, F.R. Germany (22 Oct 1973). Procedures are described for irradiating Tradescantia cuttings with neutrons and x rays. Stamen hairs were scored for various mutations. Results are discussed under the following headings: experimental end points and RBE; influence of dose on RBE; effect of dose rate on RBE; influence of neutron energy on RBE; the RBE of 3.9 GeV nitrogen ions; the influence of hypoxia (OER); and the influence of chro… more
Date: January 1, 1973
Creator: Underbrink, A.G. & Sparrow, A.H.
Partner: UNT Libraries Government Documents Department
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2XII-B pulse coil design

Description: The design of the 2XII-B pulse coil system is presented. Development of the coil geometry is given as well as the results of magnetic field calculations. A discussion of the forces developed by this high-energy coil set and the electrical stress on the magnet insulation is presented. The results of materials selection for both the coil insulation and structure are included, and also a description of the fabrication procedure. (auth)
Date: August 20, 1973
Creator: Bulmer, R. H. & Harvey, A. R.
Partner: UNT Libraries Government Documents Department
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