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Control Chart Method Applied to Errors in Radioactive Counting

Description: Abstract: The Control Chart statistical methods, developed by Showhart for the control of quality of manufactured products, are applied to the control of Geiger-Miller counting instruments. Experiments are reported to show the use to the Control Chart method for detecting disturbances in instrumental behavior and for detecting radioactive effects so weak that they are near the limit of detection of the instruments. As a corollary, the control chart can be used to reduce to its practical limit t… more
Date: February 22, 1947
Creator: Schlecht, W. G.
Item Type: Refine your search to only Report
open access

Present Investigations of Radioactive Raw Materials by the Geological Survey and a Recommended Program for Future Work

Description: From abstract: "The Geological Survey's program of investigation of radioactive raw materials is presented herewith under present investigations, plans for future investigations, plan of operation, and cost of operation. This report was prepared at the request of the Atomic Energy Commission."
Date: April 1947
Creator: Butler, A. P., Jr. & Stead, F. W.
Item Type: Refine your search to only Report
open access

Tungsten Investigations in the Republic of Argentina, 1942-43

Description: From foreword: This is a progress report describing four tungsten mines in the Republic of Argentina that were examined between October 1942 and May 1943. The work leading to this report was carried on by the Geological Survey, United States Department of the Interior, and Direcci6n de Minas y Geologia, Ministerio de Agricultura de la Republica Argentina. This work was part of a larger cooperative program sponsored by the Interdepartmental Committee on Scientific and Cultural Cooperation and wa… more
Date: 1947
Creator: Smith, Ward C. & González, E. M.
Item Type: Refine your search to only Report
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