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684
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163
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104
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97
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84
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80
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39
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35
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1,507
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736
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679
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314
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208
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163
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104
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97
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89
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Electrical Circuits for Calutrons
Preface: The existence of adequate experimental equipment, in particular the two operating cyclotrons of the Radiation Laboratory and the large 184-inch unit under construction, together with a nucleus of trained personnel, made it inevitable that work in connection with the war effort would be prosecuted vigorously at the University of California.
Date:
June 1949
Creator:
Wakerling, R. K. & Guthrie, Andrew
Object Type:
Report
System:
The UNT Digital Library
Convairiety, Volume 2, Number 4, February 16, 1949
Bimonthly newsletter published for employees of the Convair Division in Fort Worth containing work-related information, updates about employees, and other news.
Date:
February 16, 1949
Creator:
Consolidated Vultee Aircraft Corporation
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Convairiety, Volume 2, Number 10, May 11, 1949
Bimonthly newsletter published for employees of the Convair Division in Fort Worth containing work-related information, updates about employees, and other news.
Date:
May 11, 1949
Creator:
Consolidated Vultee Aircraft Corporation
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Production for Mesons by X-rays
At the spring, 1949, meeting of the National Academy of Sciences(l) a preliminary account was given of some observations of mesons produced by the 335 Mev x-ray beam from the Berkeley synchrotron. The present paper is a progress report of this work; no claim is made for completeness, but sufficient new data are available to make publication at this time worth while, especially since some of the numerical results given in the earlier report require revision. The x-ray beam, produced by the impact of 335 Mev electrons on a 20 mil thick platinum target, has a width at half maximum of 0.0135 radian (about 1 inch at 6 feet from the target). In all but the earliest experiments the beam was further defined by a 1 inch hole in a lead block, then passed through a piece of carbon which served as the meson source. The x-ray intensity at one meter from the target was about 3500 r per hour (measured behind 1/8 inch of lead) under the best running conditions; the average was about half this. The actual exposures at the carbon meson source (6 feet from the target) ranged from 500 to 2000 r in the later runs. …
Date:
September 15, 1949
Creator:
McMillan, Edwin M.; Peterson, Jack & White, R. Stephen
Object Type:
Report
System:
The UNT Digital Library
Systematics of Alpha-Radioactivity
Correlations of alpha-decay energies in terms of mass number and atomic number have been made for all of the alpha-emitting species now numbering over 100. For each element isotopes show increase in alpha-energy with decrease in mass number except in the region of 126 neutrons where there is an explainable reversal. This reversal has the effect of creating a region of relatively low alpha-energy and long half-life at low mass numbers for such elements as astatine, emanation, francium, and possibly higher elements as had been noted already for bismuth and polonium. Methods and examples of using alpha-decay data to define the energy surface in the heavy element region are discussed. The regularities in alpha-decay are used for predictions of nuclear properties including prediction of the beta-stable nuclides among the heavy elements. The half-life vs. energy correlations show that the even-even nuclides conform well with existing alpha-decay theory, but all nuclear types with odd nucleons show prohibited decay. The reason for this prohibition is not found in spin changes in the alpha-emission but in the assembly of the components of the alpha particle, and this theory is discussed further in terms of observations made on nuclides having two or more alpha-groups. …
Date:
September 12, 1949
Creator:
Perlman, I.; Ghiorso, A. & Seaborg, G. T.
Object Type:
Report
System:
The UNT Digital Library
The Carrollton Chronicle (Carrollton, Tex.), Vol. 46TH YEAR, No. 8, Ed. 1 Friday, December 30, 1949
Weekly newspaper from Carrollton, Texas that includes local, state, and national news along with advertising.
Date:
December 30, 1949
Creator:
Sindik, Nicholas J.
Object Type:
Newspaper
System:
The Portal to Texas History
The Carrollton Chronicle (Carrollton, Tex.), Vol. 46TH YEAR, No. 3, Ed. 1 Friday, November 25, 1949
Weekly newspaper from Carrollton, Texas that includes local, state, and national news along with advertising.
Date:
November 25, 1949
Creator:
Sindik, Nicholas J.
Object Type:
Newspaper
System:
The Portal to Texas History
Gainesville Daily Register and Messenger (Gainesville, Tex.), Vol. 59, No. 168, Ed. 1 Saturday, March 12, 1949
Daily newspaper from Gainesville, Texas that includes local, state, and national news along with advertising.
Date:
March 12, 1949
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Gainesville Daily Register and Messenger (Gainesville, Tex.), Vol. 59, No. 239, Ed. 1 Friday, June 3, 1949
Daily newspaper from Gainesville, Texas that includes local, state, and national news along with advertising.
Date:
June 3, 1949
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Gainesville Daily Register and Messenger (Gainesville, Tex.), Vol. 60, No. 105, Ed. 1 Thursday, December 29, 1949
Daily newspaper from Gainesville, Texas that includes local, state, and national news along with advertising.
Date:
December 29, 1949
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Gainesville Daily Register and Messenger (Gainesville, Tex.), Vol. 59, No. 201, Ed. 1 Wednesday, April 20, 1949
Daily newspaper from Gainesville, Texas that includes local, state, and national news along with advertising.
Date:
April 20, 1949
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Gainesville Daily Register and Messenger (Gainesville, Tex.), Vol. 59, No. 245, Ed. 1 Friday, June 10, 1949
Daily newspaper from Gainesville, Texas that includes local, state, and national news along with advertising.
Date:
June 10, 1949
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Junior Historian, Volume 9, Number 6, May 1949
Journal published by the Texas State Historical Association containing articles written by members of the Junior Historians about various aspects of Texas history.
Date:
May 1949
Creator:
Texas State Historical Association
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
The Sealy News (Sealy, Tex.), Vol. 61, No. 22, Ed. 1 Thursday, August 4, 1949
Weekly newspaper from Sealy, Texas that includes local, state, and national news along with advertising.
Date:
August 4, 1949
Creator:
Soloman, Mescal
Object Type:
Newspaper
System:
The Portal to Texas History
The Mineola Monitor (Mineola, Tex.), Vol. 74, No. 3, Ed. 1 Thursday, April 7, 1949
Weekly newspaper from Mineola, Texas that includes local, state and national news along with advertising.
Date:
April 7, 1949
Creator:
Carraway, R. H., Jr.
Object Type:
Newspaper
System:
The Portal to Texas History
Stillwater, Oklahoma Safety Council report, 1949
Stillwater Safety Council report of programs, newspaper clippings, photographs, letters and forms relating to the safety and police support for the citizens of Stillwater, Oklahoma. Includes Ordinance no. 559, no. 561, no. 685, no. 721, no. 757, no 758, and no. 802.
Date:
1949
Creator:
Stillwater Safety Council (Okla.)
Object Type:
Report
System:
The Gateway to Oklahoma History
The Texhoma Times (Texhoma, Okla.), Vol. 46, No. 44, Ed. 1 Thursday, June 2, 1949
Weekly newspaper from Texhoma, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 2, 1949
Creator:
Johnson, Chester V.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The El Reno Daily Tribune (El Reno, Okla.), Vol. 58, No. 184, Ed. 1 Tuesday, October 4, 1949
Daily newspaper from El Reno, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 4, 1949
Creator:
Harle, Budge
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Chronicles of Oklahoma, Volume 27, Number 2, Summer 1949
Quarterly publication containing articles, book reviews, photographs, illustrations, and other works documenting Oklahoma history and preservation.
Date:
Summer 1949
Creator:
Oklahoma Historical Society
Object Type:
Journal/Magazine/Newsletter
System:
The Gateway to Oklahoma History
Mt. Pleasant Daily Times (Mount Pleasant, Tex.), Vol. 30, No. 91, Ed. 1 Thursday, July 21, 1949
Daily newspaper from Mount Pleasant, Texas that includes local, state, and national news along with advertising.
Date:
July 21, 1949
Creator:
Cross, G. W.
Object Type:
Newspaper
System:
The Portal to Texas History
The Celina Record (Celina, Tex.), Vol. 48, No. 7, Ed. 1 Thursday, September 1, 1949
Weekly newspaper from Celina, Texas that includes local, state, and national news along with advertising.
Date:
September 1, 1949
Creator:
O'Brien, B. E.
Object Type:
Newspaper
System:
The Portal to Texas History
The Sealy News (Sealy, Tex.), Vol. 61, No. 20, Ed. 1 Thursday, July 21, 1949
Weekly newspaper from Sealy, Texas that includes local, state, and national news along with advertising.
Date:
July 21, 1949
Creator:
Soloman, Mescal
Object Type:
Newspaper
System:
The Portal to Texas History
The Sealy News (Sealy, Tex.), Vol. 61, No. 19, Ed. 1 Thursday, July 14, 1949
Weekly newspaper from Sealy, Texas that includes local, state, and national news along with advertising.
Date:
July 14, 1949
Creator:
Soloman, Mescal
Object Type:
Newspaper
System:
The Portal to Texas History
The Enterprise (Mercedes, Tex.), Vol. 37, No. 27, Ed. 1 Thursday, June 30, 1949
Weekly newspaper from Mercedes, Texas that includes local, state, and national news along with advertising.
Date:
June 30, 1949
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History