120 Matching Results

Search Results

Advanced search parameters have been applied.

MEETING VII-BEVATRON RESEARCH CONFERENCE--COUNTING EQUIPMENT FOR THE BEVATRON

Description: This discussion will review the results of a survey of present plans for the Bevatron counting equipment. Proposed counting facilities, tentative specifications for desired counting equipment, a view of past counting techniques, and some of the later associated circuits will be considered.
Date: November 17, 1953
Creator: Wiegand, Clyde.
Partner: UNT Libraries Government Documents Department

The Bevatron and its Place in Nuclear Physics

Description: From page 2: "This article first describes the Bevatron [particle accelerator] and its operation, and then discusses a portion of the research program. The principles of the machine and its early history were given in "The Bevatron," by Lloyd Smith, Scientific American, February 1951."
Date: April 6, 1956
Creator: Lofgren, E. J.
Partner: UNT Libraries Government Documents Department

Meeting XI Bevatron Research Conference

Description: It will be desirable to have a general purpose bending magnet available for use with the Bevatron. The design discussed, while tentative, is believed to incorporate most of the desired properties for use with the external beam.
Date: January 12, 1954
Creator: Wenzel, William A.
Partner: UNT Libraries Government Documents Department

Experiences with the Bevatron

Description: The Bevatron is still undergoing a process of gradual improvement to increase both the magnitude of the beam and the reliability. The operating conditions for optimum adjustment at the present stage of development are summarized.
Date: April 5, 1956
Creator: Lofgren, Edward J.
Partner: UNT Libraries Government Documents Department

Correlation of Engineering Design with Preliminary OperationalExperience of the Bevatron Accelerator

Description: The precise relationship required between the frequency of the accelerating voltage and the magnetic field guiding particles accelerated in a high-energy proton synchrotron presents a challenging design problem ot the electronic engineer. In the University of California Bevatron, it has been necessary to develop a number of circuits whose performance follows a prescribed function to within better than one-tenth of one per cent. Control and monitoring of the acceleration cycle is carried on at a control area suitably shielded from high-energy radiation.
Date: January 1, 1954
Creator: Mack, Dick A.
Partner: UNT Libraries Government Documents Department

Summary - Bevatron Research Meeting II

Description: The operational characteristics of the Cosmotron were reviewed in brief. Since a rather complete account of this machine is now available in the September 1953 issue of Rev. Sci. Inst., this summary will include only the more recent utilization of the machine as a research instrument.
Date: October 13, 1953
Creator: Chamberlain, Owen
Partner: UNT Libraries Government Documents Department

Design and Construction of the Bevatron

Description: This report summarizes the design and construction of the Bevatron (6-Bev proton synchrotron) with emphasis on the engineering problems. It includes specifications, outline drawings, and a bibliography of other reports concerning the subject. Operating results and changes made after the initial start-up in February 1954 are mentioned only briefly.
Date: September 13, 1957
Creator: Brobeck, William M.
Partner: UNT Libraries Government Documents Department

Antiproton Star Observed in Emulsion

Description: In connection with the antiproton investigation at the Bevatron we planned and carried out a photographic-emulsion exposure in a magnetically selected beam of negative particles. The magnetic system was identical to the first half (one deflecting magnet and one magnetic lens) of the system used in the antiproton experiment of Chamberlain, Segre, Wiegand, and Ypsilantis. The selected particles left the copper target in the forward direction with momentum 1.09 Bev/c.
Date: December 1, 1955
Creator: Chamberlain, Owen; Chupp, Warren W.; Goldhaber, Gerson; Segre,Emilio; Wiegand, Clyde; Amaldi, E. et al.
Partner: UNT Libraries Government Documents Department

The Velocity-Selecting Cerenkov Counter

Description: A number of varieties of velocity-selecting Cerenkov counters have been described by Dr. John Marshall. The authors will present a description of a counter different from any described by Marshall in his review article, but of the same type mentioned descriptively by Marshall in another article under the heading ''Cylindrical mirror counter without lens''. Some tests of this type of counter were carried out by S.J. Lindenbaum and L.C. Yuan. The counter we describe was developed for the detection of a small fraction of antiprotons in a beam of negative particles originating at the target of the Bevatron. As far as the authors are aware, this represents the first practical use of a velocity-selecting Cerenkov counter in an experimental investigation.
Date: April 17, 1956
Creator: Chamberlain, Owen & Weigand, Clyde
Partner: UNT Libraries Government Documents Department

BEVATRON RESEARCH MEETING III - BEVATRON THEORY

Description: Despite the essentially independent development of the Cosmotron and Bevatron, these two accelerators have general specifications which are the same within a factor of 2-3 in their pertinent characteristics. An electron analogue of the Bevatron would be an electron synchrotron operating in the 5 kev to 3 Mev range.
Date: October 20, 1953
Creator: Smith, Lloyd
Partner: UNT Libraries Government Documents Department

BEVATRON RESEARCH MEETING V - HIGH ENERGY NUCLEAR INTERACTION

Description: There are two different types of investigation of interest in high energy nuclear phenomena. One can observe gross effects such as the production of large numbers of heavy particles of different types, or one can study the elementary particles themselves which result from these collisions, for example, the kappa mesons, to determine modes of decay and the energy spectra of the resulting particles. This discussion will deal with the gross aspects of high energy interactions and will review the work of Fermi: High Energy Nuclear Interactions, Progress in Theoretical Physics, 5, No. 4, July-August, 1950.
Date: November 3, 1953
Creator: Lepore, Joseph
Partner: UNT Libraries Government Documents Department

MEETING XII -- BEVATRON RESEARCH CONFERENCE -- BEVATRON OPERATION

Description: On February 2, the first 10 Mev proton beau was injected from the linear accelerator. Injection parameters were varied to study first turn beams with the magnet excited by a d-c generator. A few minutes after the magnetic field had been adjusted to the value calculated from magnetic measurements. the 180{sup o} beam was observed on fluorescent flags and measured with Faraday cups. During the remainder of the week several radio frequency components were installed and operated. Ground current signals in various pieces of equipment were a limitation in detecting.
Date: March 16, 1954
Creator: Cork, Bruce.
Partner: UNT Libraries Government Documents Department

MEETING XIV -- BEVATRON RESEARCH CONFERENCE -- CHEMISTRY EXPERIMENTS

Description: The main purpose of Chemistry Division personnel in using the Bevatron will be to learn as much as possible about nuclear reactions in the Bev energy range using the radiochemical approach. The type and extent of these experiments will depend greatly on the beam intensity. Significant results can be obtained at 10{sup 6} or 10{sup 7} protons per pulse, but it is highly desirable that this figure ultimately be raised to 10{sup 10} or greater.
Date: March 29, 1954
Creator: Hyde, Earl K.
Partner: UNT Libraries Government Documents Department