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DEVELOPMENT OF REMOTE METALLOGRAPHIC TECHNIQUES FOR IRRADIATED MATERIALS

Description: A remote metallographic facility is in operation at Argonne National Laboratory. Techniques relative to better contamination control and equipment operation were developed. The techniques used for microscopic examination of irradiated materials were standardized with variations only in the final polishing steps, and detailed procedures are given for several alloys. The procedures used for macroscopy vary from sample to sample, and new procedures are developed as required to suit each particular problem. (auth)
Date: September 1, 1961
Creator: Carlander, R.
Partner: UNT Libraries Government Documents Department

TESTING OF HNPF FREEZE-SEAL PUMP

Description: >A centrifugal pump performed adequately at a flow rate of 7200 gpm of 945 gas-cooled F sodium at a 150-ft head. A two-region freeze seal was developed and used successfully as a shaft seal on this pump. The results indicate that this pump could perform satisfactorily in the Hallam Power Reactor. (auth)
Date: November 1, 1960
Creator: Atz, R.W.
Partner: UNT Libraries Government Documents Department

A GAS SHAFT SEAL FOR THE HNPF SODIUM PUMP

Description: Lip type, oil labyrinth gas shaft seals were tested for use on Hallam Power Reactor sodium pumps with a 5-in.diameter rotating shaft. The seals were not recommended for use owing to excess helium leakage and short life. (C.J.G.)
Date: June 30, 1958
Creator: Admire, B.W. & Nayor, F.S.
Partner: UNT Libraries Government Documents Department

OPERATIONAL INVESTIGATION OF NUCLEAR INSTRUMENTATION. Test Results T- 643725. Section 1

Description: A test was run to determine the capability of the nuclear instrumentation system to indicate reactor transient behavior and to test the linearity and alignment of all four channels. The response to a resctivity insertion was found to be linear in the range tested 5 x 10>s-/sup >> / 5 x 10>s-/ sup > /p Channel A showed the best aligmnent. (D. L.C.)
Date: March 20, 1961
Partner: UNT Libraries Government Documents Department

A Bibliography on Gas Lubricated Bearings-Revised. Interim Report

Description: A compilation of 290 references on gas bearings is presented. In most cases an English resume' of each reference is included a translation being made when required. The references are arranged alphabetically by first author. Indexes included are the year of origin corporate author, subject, patent number, and country of origin. (J.R.D.)
Date: September 15, 1959
Creator: Sciulli, E. B.
Partner: UNT Libraries Government Documents Department

POSITIONAL TOLERANCING AT SANDIA CORPORATION

Description: The positional tolerance method of dimensioning is described. The emphasis is placed on the elimination of ambiguities and increase in tolerances provided by this method as compared to the older, bilateral method. (auth)
Date: May 1, 1959
Creator: Eichert, F.F. & Nicovich, P.A. eds.
Partner: UNT Libraries Government Documents Department

ESTIMATING THE PERFORMANCE OF NEUTRON TIME-OF-FLIGHT SPECTROMETERS

Description: Analogy with optical instruments is used to develop formulas for estimating the counting rate achieved by a neutron time-of-flight system. lnput data consist of the flux at the spectrometer entrance and some of the physical characteristics of the spectrometer. Convenient relations for the comparison of different systems are presented. (auth)
Date: November 1, 1961
Creator: Stanford, G.S.
Partner: UNT Libraries Government Documents Department

FACILITY FOR PHOTOGRAPHING IN-PILE MELTDOWN EXPERIMENTS IN TREAT

Description: Techniques and equipment were developed for photographing of samples during in-pile meltdown experiments in TREAT. The design and materials for the transparent meltdowm facility are described. The procedures for assemblys insertion in TREAT, removal, and disassembly are outlined. (M.C.G.)
Date: January 1, 1962
Creator: Golden, G.H.; Dickerman, C.E. & Robinson, L.E.
Partner: UNT Libraries Government Documents Department

RECENT DEVELOPMENTS IN MULTICHANNEL PULSE-HEIGHT ANALYSIS

Description: The state of the pulse-height analyzing art is reviewed with particular emphasis on the developments of the past two years. The discussion includes consideration of multidimensional instruments, calibration-stabilizing techniques, and some of the auxiliary features that are becoming increasingly available on commercial instruments. Possible future developments with respect to resolving time and memory organization is discussed briefly. (auth)
Date: June 1, 1962
Creator: Chase, R.L.
Partner: UNT Libraries Government Documents Department

Synthesis of Wave-Forming Networks

Description: Passive networks whose specified wave forms are given as a function of time are discussed. The wave forms may be periodic or a single pulse. Suggestions and techniques are presented which should enable a circuit designer with a basic knowledge of network synthesis procedures to obtain wave-forming networks for a wide variety of cases. (auth)
Date: August 1, 1961
Creator: LaPatra, J. W.
Partner: UNT Libraries Government Documents Department

Force Multiplier for Use With Master Slaves

Description: A force multiplier was designed. This piece of equipment was made to increase the gripping force presently available in the Model 8 master slave. The force multiplier described incorporates a clamp which can be quickly attached to and detached from the master slave hand. (auth)
Date: June 1, 1961
Creator: Miles, L. E.; Parsons, T. C. & Howe, P. W.
Partner: UNT Libraries Government Documents Department

19 mm ballistic range: a potpourri of techniques and recipes

Description: The expansion of ballistic gun range facilities at LLL has introduced state-of-the-art diagnostic techniques to glovebox-enclosed ballistic guns systems. These enclosed ballistic ranges are designed for the study of one- dimensional shock phenomena in extremely toxic material such as plutonium. The extension of state-of-the-art phtographic and interferometric diagnostic systems to glovebox-enclosed gun systems introduces new design boundaries and performance criteria on optical and mechanical components. A technique for experimentally evaluating design proposals is illustrated, and several specific examples (such as, target alignment, collateral shrapnel damage, and soft recovery) are discussed. (auth)
Date: September 23, 1975
Creator: Carpluk, G.T.
Partner: UNT Libraries Government Documents Department

Some aspects of micro-drill technology

Description: Providing research equipment for the many and varied projects at Lawrence Livermore Laboratory leads to interesting machining requirements. One of these is the need to drill very small holes, and in a variety of materials. Holes down to 0.001 in. in dia, approximately 12 dia deep, in brass, steel, stainless steel, copper, gold, plastics, uranium, etc., are not uncommon. This paper discusses methods of sharpening microdrills down to .001 in. in dia and some results obtained with their use. (TFD)
Date: September 1, 1974
Creator: Ellers, R.C. & Spies, R.J.
Partner: UNT Libraries Government Documents Department

SERVOMECHANISMS WITH FORCE FEEDBACK

Description: A class of linear proportional servomechanisms is examined in which an electrical signal proportional to output force is used to improve performance. The effect of this "force feedback" on a positional servomechanism is analyzed as well as the effect on a special type of servomechanism which reflects load forces back to the input. This latter type of servomechanism is called "force reflecting." Laboratory models of these servormechanisms were designed and constructed, and experimental data are presented in support of the analysis. (auth)
Date: May 1, 1960
Creator: Arzbaecher, R.C.
Partner: UNT Libraries Government Documents Department

SOME INFORMATION CONCERNING THE KEWB "B" WITH REGARD TO UCRL INSTRUMENT CALIBRATION

Description: The use of KEWB-B as a calibration source for pulse detection instruments is proposed. As a result, more information was needed: radial and axial distributions of fissions, number of fissions seen by the detection instruments, and materials seen by the detection instruments. The calibrations were achieved in six transient runs. (T.R.H.)
Date: June 20, 1960
Creator: Spiegler, P.
Partner: UNT Libraries Government Documents Department

THE DEVELOPMENT OF A DIRECT COUPLED, TRANSISTORIZED, SUB-MILLIMICROAMPERE CURRENT AMPLIFIER

Description: Development of a direct coupled, transistorized current amplifler is reported with sensitivities extending below the millimicroampere region of input currents. The amplifier employs a shunt feedback and exhibits reproducible characteristics. Discovery of this special effect and the design and testing employed in the incorporation of transistors into the amplifier are described. (J.R.D.)
Date: August 11, 1961
Creator: May, F.T.
Partner: UNT Libraries Government Documents Department