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Transistorized Linear Pulse Amplifiers

Description: The basic investigation of transistor feedback amplifiers has proven mathematically simple and of great practical value. The behavior of single-stage common-emitter amplifiers is described and provides a building block with which cascaded feedback amplifiers can be analyzed and designed. From the results of this analysis the conditions for minimum drift for cascaded single-stages and cascaded loops have been derived.
Date: October 27, 1958
Creator: Baker, Stanley C.
Item Type: Refine your search to only Report
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Pile Neutron Production Field Curves Calculated Using the UCRL Differential Analyzer

Description: A set of 69 pile yield curves for the production of plutonium, americium, and curium isotopes in a neutron flux of 5 x 10<sup>14 cm<sup>-2 sec<sup>-1 is given. The differential analyzer of the University of California Radiation Laboratory was used in obtaining the curves. The curves are given also on log-log plots for comparison.
Date: October 30, 1953
Creator: Barrett, R. J.; Killeen, John, 1925-; Rasmussen, J. O. & Thompson, Stanley Gerald, 1912-1976
Item Type: Refine your search to only Report
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Pulsed Neutron Experiments With Fast Assemblies

Description: "The pulsed source technique consists of introducing repeated short bursts of neutrons into a subcritical assembly, and following the decay of the leakage flux as a function of time...It is noted that plotting the decay constant as a function of buckling gives an apparently accurate way to extrapolate to prompt critical. The pulsed source technique can also be used to calibrate control rod and poison worth, and will give some estimate of the prompt neutron lifetime."
Date: October 31, 1957
Creator: Bengston, Joel & Passell, Lawrence
Item Type: Refine your search to only Report
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Scatterbrain: An Automated Experiment on the 90-Inch Cyclotron

Description: Summary: By controlling certain elements within a vacuum chamber from an external station, a charged particle experiment is performed without opening the chamber, thereby saving considerable time and labor. By pre-programming the experimental sequence on the external controls, the experiment can be performed from beginning to end with a minimum of operator attention. The data collected can be read out automatically on a punched paper tape for subsequent transmission to a digital computer.
Date: October 1956
Creator: Benveniste, J.; Lafranchi, E. A.; Strahl, G. E. & Swenson, R. L.
Item Type: Refine your search to only Report
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Free Radicals In Photosynthetic Systems

Description: The method of detecting unpaired electrons in liquid and solid systems by electron spin resonance is discussed. The significance of the hyperfine structure in electron spin resonance is discussed and the possible use of these structural features of the electron spin resonance spectrum to elucidate the nature of the photoproduced unpaired electrons in photosynthesizing systems is introduced.
Date: October 8, 1958
Creator: Calvin, Melvin, 1911-1997
Item Type: Refine your search to only Report
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Cyclotron Resonance Heating of a Deuterium Plasma

Description: Abstract: "The energy gained by a deuterium plasma, from a three megacycle per second radiofrequency field, was studied experimentally. A static magnetic field, in the form of a "mirror", was used. The coil of an rf resonant circuit, placed at the center of the machine produced a time-varying magnetic field parallel to the static field. This, in turn, induced an electrical field, in an azmuthal direction, which acted on the ions. When this was in synchronism with the cyclotron frequency, the io… more
Date: October 28, 1957
Creator: Chambers, Edmund S.; Lamb, William A. S. & Kippenhan, Dean O.
Item Type: Refine your search to only Report
open access

Cosmic Rays From Large Supernovae

Description: The theory of the hydrodynamic origin of cosmic rays proposed by Johnson and the author (Colgate) has developed to the point where the final evolution of a star to the supernova instability and subsequent explosion can be described with sufficient detail such that cosmic rays with appropriate intensity, composition, and spectrum to account for observations are a logical and necessary result. In the first publication it was pointed out that nuclei in the surface of the star may acquire many orde… more
Date: October 21, 1963
Creator: Colgate, S. A. & White, R. H.
Item Type: Refine your search to only Report
open access

A Preliminary Investigation Of The System Time Spread For Some Types Of Multiplier Phototubes

Description: A preliminary investigation of four types of multiplier phototubes under conditions simulating their use in scintillation and Cerenkov nuclear detectors is described. The investigation involves time-spread and rise-time measurements at different reference points on the outpost pulses, as well as observations of some special characteristics of these tubes.
Date: October 1960
Creator: El Hakim, Yahia
Item Type: Refine your search to only Report
open access

Physics of the Ion Thrust System

Description: Abstract: A study has been made of the source, acceleration, and neutralization of ions for application to space propulsion. A summary is made in this paper of some of the most important problems in this area and their solutions.
Date: October 7, 1959
Creator: Fox, Raymond
Item Type: Refine your search to only Report
open access

High-Energy, Low-Thrust Jupiter Missions

Description: Previous studies have been made of the relationship among acceleration, specific power, payload fraction, and travel time for many interplanetary missions. These utilized tangential thrust and correspond to the high thrust Hohmann transfer orbits. In addition, a complete optimization of the one way Mars mission has been accomplished. Since the minimum Jupiter round trip time was six and a half years for tangential thrust, calculations were carried out using higher energy transfer orbits. It is … more
Date: October 31, 1960
Creator: Fox, Robert H.
Item Type: Refine your search to only Report
open access

The bumpy torus

Description: "In this paper the single particle motion in the magnetic field created by a circular array of circular current loops is investigated." (p. 3)
Date: October 1959
Creator: Gibson, Gordon; Jordan, Willard C. & Lauer, Eugene J.
Item Type: Refine your search to only Report
open access

A Radiofrequency Separator For High-Energy Particles

Description: This report is an outgrowth of the MURA Users' Conference of June 1959. At that conference the group on beam separators discussed the problem of whether particle separation could be achieved at the machine energies under consideration. A preliminary version of the scheme outlined here was given at the conference. Later, after flaws were discovered, it was modified. The attempt is not to show that this is the way it should be done, but to show with reasonable certainty that there is at least one… more
Date: October 28, 1959
Creator: Good, Myron L.
Item Type: Refine your search to only Report
open access

Capacity Factors in the Performance of Perforated Plate Distillation Columns

Description: From abstract: "A study of factors affecting the vapor handling capacity of perforated plate liquid-vapor contacting columns. Vapor phase pressure drop across plates, liquid entrainment upward from plate to plate, and plate stability were investigated as functions of operational and geometric column parameters."
Date: October 1954
Creator: Hunt, Charles d'Ancona, 1924-
Item Type: Refine your search to only Thesis or Dissertation
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Lunar Height Changes in the E-Layer

Description: Abstract: "The height changes produced by vertical electronic diffusion in the presence of negative ions are examined in some detail. Application of the results to the E-layer shows that a previous qualitative discussion remains valid."
Date: October 1953
Creator: Johnson, M. H.
Item Type: Refine your search to only Report
open access

Convergence and Summability of Orthogonal Series

Description: Consider an orthogonal series [formula] where [formula] is an arbitrary orthonormal system for the interval (a, b) and [formula] is a sequence of real numbers. This report is a collection of theorems which give sufficient conditions for the convergence almost everywhere in (a, b) and summability a. e. in (a, b) of the above series.
Date: October 6, 1953
Creator: Killeen, John, 1925-
Item Type: Refine your search to only Report
open access

Plasma Containment Configuration

Description: Report discussing a plasma containment configuration which appears to have no escape cone. From abstract: "Arguments are given to show how the containment process works, including experimental evidence deduced from published reports on "electromagnetic levitation."
Date: October 11, 1956
Creator: Linlor, William I., 1915-
Item Type: Refine your search to only Report
open access

Gaseous Detonation : Bibliography

Description: This report is a bibliography divided into two sections: one that documents books and journal articles, the other containing classified and unclassified documents, that are based around gaseous detonation. These sources cover the period between 1941 to October of 1957.
Date: October 28, 1957
Creator: Maynard, G. R. & Frost, Fred
Item Type: Refine your search to only Report
open access

A Theoretical Consideration Of Asymmetric Heat Flow At The Interface Of The Dissimilar Metals

Description: Several investigators have found that the resistance to heat transfer at certain metal-metal interfaces is dependent upon the direction of heat flow across these interfaces. This paper shows that such a phenomenon can be explained by application of the theory of heat conduction in the solid state.
Date: October 1961
Creator: Moon, Joon Sang & Keeler, R. N.
Item Type: Refine your search to only Report
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