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Reconnaissance of Radioactive Rocks of Vermont, New Hampshire, Connecticut, Rhode Island and Southeastern New York

Description: From abstract: In 1948, 7,662 miles of roadside rocks and soils in Vermont, New Hampshire, Connecticut, Rhode Island, and southeastern New York were traversed with a car-mounted Geiger-Mueller counter. The observed distribution of the abnormally radioactive rocks and soils is limited to certain areas, herein called "radioactive provinces," that are separated from each other by areas of essentially nonradioactive rock.
Date: June 1951
Creator: McKeown, Frank A.
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Uranium Occurrences of Gila County, Arizona

Description: From purpose and scope: This report is designed to summarize the available information on the geology and ore reserves of the uranium deposits. Detailed geological work has been confined largely to those areas which contain the more promising uranium occurrences with at least 80 percent of such work being concentrated in the Sierra Ancha district.
Date: October 1957
Creator: Schwartz, Roland J.
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MEETING IX - BEVATRON RESEARCH CONFERENCE--BEVATRON PHYSICS

Description: A large number of experiments relating to nuclear structure and materialization of energy will fall within the energy range of primary and secondary particles available from the Bevatron. Some experiments of interest are outlined below with pertinent comments. Proton-proton scattering can be extended to the high energy range using liquid hydrogen targets and hydrogenous materials by bombarding the target with the internal beam or using externally scattered protons. Proton-deuteron scattering me… more
Date: December 15, 1953
Creator: Karplus, Robert
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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 w… more
Date: November 3, 1953
Creator: Lepore, Joseph
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Reactor Shim Control by Coolant Passage Coating

Description: Work at North American Aviation in connection with the ReactorSafety Program has suggested the use of a poison-bearing "paint" which would coat reactor coolant channels, and provide a supplement to the control systems of the Hanford reactors. A review of Hanford operating problems indicates that this addition to the present control systems would enable an increase in annual production for each reactor of about 6% or the production equivalent of about 21 days at maximum power level. Installati… more
Date: September 17, 1953
Creator: Wheelock, C. W.
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MEETING XIII -- BEVATRON RESEARCH CONFERENCE -- TARGET AREA MODIFICATIONS

Description: The following modifications are planned to facilitate greater usefulness of available target space in the west tangent tank: (1) A 3/32-inch x 6-inch x 106-inch aluminum window is to be added to the outer radius tank wall. (2) One 12-inch x 6-inch air lock is to be added on the inside centerline of the reentrant section on the west tangent tank. (3) Two 24-inch x 30-inch openings are to be cut on the beam centerline in the top of the west tangent tank, one at each end. These openings will accom… more
Date: March 23, 1954
Creator: Chupp, Warren
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Uranophane at the Silver Cliff Mine Near Lusk, Niobrara County, Wyoming

Description: In 1950, the U.S. Geological Survey studied a uranium deposit, previously exploited, at the Silver Cliff mine near Lusk, Wyoming. The deposit consists primarily of uranophane that occurs as fracture fillings and small replacement pockets in faulted and fractured quartzite of Cambrian (?) age. The country rock in the vicinity of the mine is schist of pre-Cambrian age intruded by pegmatite dikes and unconformably overlain by flat-lying Cambrian (?) quartzite. The mine is at the southern end of th… more
Date: May 1, 1952
Creator: Wilmarth, V.R. & Johnson, D.H.
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MEETING XVII -- BEVATRON RESEARCH CONFERENCE -- BEVATRON OPERATION

Description: Bevatron operation has been stopped temporarily due to a generator fault. While repairs are being instituted the tank will be down to air for repairs and target installation. Operation on one generator is scheduled for May 3. It has been previously proposed that one could investigate the {pi}{sub 0} lifetime by measuring the converted electron yield from {pi}{sub 0} decay photons as a function of the thickness of a thin target in which both the {pi}{sub 0} production and photon conversion occur… more
Date: April 20, 1954
Creator: Lofgren, E.J.
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MEETING XV -- BEVATRON RESEARCH CONFERENCE -- BEVATRON STATUS

Description: On April 1, a new energy peak of 6.1 Bev was attained with the Bevatron. Scattered particles monitored with a counter telescope in triple coincidence gave approximately 100 counts per beam pulse. April 2s the machine was down to air to allow work on beam monitoring equipment. Test operations resumed April 5. Though the total number of accelerated particles is still small, due to low energy beam losses, some cloud chamber tracks have been observed. Several plates have been exposed for Goldhaber.… more
Date: April 6, 1954
Creator: Lofgren, E.J.
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ORBIT DYNAMICS IN THE SPIRAL-RIDGED CYCLOTRON

Description: Formulas are derived for the equilibrium orbit, isochronous condition, vertical and horizontal betatron frequencies, and for the effects of the 3/3 radial resonance in a three-fold geometry. The magnetic field is represented by a Fourier series in azimuth with amplitudes expanded in a Taylor series about the reference radius. The form is such that the various parameters may be deduced from an arbitrary set of field measurements in the median plane and the results obtained by direct substitution… more
Date: January 12, 1959
Creator: Smith, Lloyd & Garren, Alper A.
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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.
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Bevatron Research Meeting I - Bevatron as a Research Instrument

Description: The Bevatron status is: (1) Physical structure of magnet now assembled and being tested. Initial pulsing to rated field currents indicate that magnet is performing as designed. Currents of the order of 8500 amps peak have already been rendered. (About 15,000 gauss). (2) Pumpdown time to approximately 10{sup -5} mm Hg is of the order of 24 hours at present but is expected to improve to 12-15 hours as the high vapor pressure solvents are removed. Lofgren and Brobeck expect that it will be possibl… more
Date: October 6, 1953
Creator: Lofgren, Edward
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MEETING XVIII -- BEVATRON RESEARCH CONFERENCE -- BEVATRON OPERATION and NUCLEAR EMULSION EXPERIMENTS

Description: Results of preliminary tests with photographic emulsions using a lip target are discussed. Some methods for the search of heavy mesons are suggested. The preliminary tests with photographic emulsions were designed to investigate exposure conditions inside the Bevatron. These were carried out with stationary targets, since injected targets were not available at that time. The first exposure was designed to study the shielding required for emulsions placed in the direct beam (9 inches from the ma… more
Date: May 11, 1954
Creator: Lofgren, E.J. & Goldhaber, Gerson
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Subcontract Work by the Ferrotherm Co.

Description: The Ferrotherm Company is undertaking a design study of a test radiator. Since January 21, 1955, preliminary designs of several radiators have been completed prior to the selection of one for the final design study. Ferrotherm has been given prototype design specifications for structural design, typical in-flight prototype performance specifications for core-size estimates, test core specifications for their design study, and a method whereby radiators may be evaluated. From analysis of the pro… more
Date: April 20, 1955
Creator: Shaw, R.H.
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BEVATRON RESEARCH MEETING VI - HIGH ENERGY NUCLEAR INTERACTION

Description: The relative probabilities for alternate processes initiated by a nucleon-nucleon collision depend on the dynamics involved and on the volume in phase space accessible to each final state. According to Fermi this last aspect alone may be of decisive importance. Such an assignment would follow were an approximate statistical equilibrium reached. The volume occupied by the incident nucleons and the associated pion clouds will have very large energy density at the instant of collision. Knowing tha… more
Date: November 10, 1953
Creator: Lepore, Joseph
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BEVATRON RESEARCH MEETING IV - BEVATRON TARGETS AND PROBES

Description: The targets and probes will be introduced 6-inches below the median plane so that adequate mechanical support can be effectively utilized without reducing the aperture. Probe heads will be of such configuration as to allow monitoring of any desired vertical strip of the aperture. It is probable that some space will be available in the quadrants after first performance tests have been on the machine. No targets or probes will be located in that 1-foot x 4-foot aperture initially. Provision will … more
Date: October 27, 1953
Creator: Chupp, Warren
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MEETING X--BEVATRON RESEARCH CONFERNECE--CLOUD CHAMBER EXPERIMENTS

Description: Several of the cloud chambers used in cosmic ray research are discussed in terms of their application as measuring instruments at Bevatron energies. Some of the limitations of these instruments are revealed.
Date: January 3, 1954
Creator: Fretter, William B.
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Subcontract Work by Thompson Products, Inc.

Description: In April, 1954, Thompson Products Inc. formally began work on a program leading to the fabrication of two test radiators. The work done to date is summarized in report number PWAC-127, First Technical Report by Thompson Products Inc. on Liquid-Metal-to-Air Radiators and in PWAC-128, Second Technical Report by Thompson Products Inc. on Liquid-Metal-to-Air Radiators. The first report describes possible radiator design concepts meeting the required specifications and presents an analytical method … more
Date: April 20, 1955
Creator: Shaw, R.H.
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Recent Developments in Powder Metallurgy

Description: Brief notes from a meeting between NAA and S. B. Roboff, Sylvania Electric Products, regarding the important developments in powder metallurgy fuels and reactor materials.
Date: June 30, 1953
Creator: Hayward, B.R.
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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 sig… more
Date: March 16, 1954
Creator: Cork, Bruce.
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Request for Nuclear-Ramjet Radiator Weight Data

Description: Weight data on the following liquid metal to air radiators is requested. This information is to be used in a comparison of the performance attainable with different nuclear reactors and liquid metal systems in a ram-jet powered airplane. The radiator dimensions are based on estimates using the performance curves presented in CNLM-338.
Date: June 23, 1958
Creator: Larson, J.W.
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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.
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