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The Bragg Reflection of Neutrons by a Single Crystal

Description: From cover page: This document has been assigned the above MDDC (Manhattan District Declassification) number, as given in the List of Declassified Documents issued semi-monthly by the Research Division, Manhattan District. In the case of Los Alapnos reports, LADC (Los Alamos Declassification) numbers are listed on the title page if known. This declassified document may differ materially from the original classified document by reason of deletions necessary to accomplish declassification. Hence, this copy of a declassified document does not constitute authority for declassification of classified copies of a similar document which may bear the same title and authors. Reference is made to District Circular Letter (Research Control 47-3) dated 31 October 1946, subject: "Instructions for Use of List of Declassified Documents," which outlines the procedure by means of which declassification of classified copies may be effected. Every effort has been made to reproduce with accuracy of detail the declassified document as certified for declassification. No corrections or changes have been made in the content of the document.
Date: June 14, 1946
Creator: Zinn, Walter H.
Partner: UNT Libraries Government Documents Department

Standard X-ray Diffraction Powder Patterns: Section 10. Data for 84 Substances

Description: From Introduction: "This report presents information for 84 compounds (47 experimental and 37 calculated patterns), and is the twentieth of the series of "Standard X-ray Diffraction Powder Patterns."
Date: November 1972
Creator: Swanson, Howard E.; McMurdie, Howard F.; Morris, Marlene C.; Evans, Eloise H. & Paretzkin, Boris
Partner: UNT Libraries Government Documents Department

Standard X-ray Diffraction Powder Patterns: Section 4. Data for 103 Substances

Description: From Introduction: "This compilation is the fourth section of the series Monograph 25. Included are patterns recommended to replace data on 11 cards now present in the File. The other patterns are for 93 compounds not included in the File. In this group of compounds, 22 patterns are experimental and 71 are calculated."
Date: June 28, 1966
Creator: Swanson, Howard E.; Morris, Marlene C. & Evans, Eloise H.
Partner: UNT Libraries Government Documents Department

Standard X-ray Diffraction Powder Patterns: Section 11. Data for 70 Substances

Description: From Introduction: "This reports presents information for 70 compounds (52 experimental and 18 calculated patterns), and is the twenty-first of the series of "Standard X-ray Diffraction Powder Patterns."
Date: February 1974
Creator: Swanson, Howard E.; McMurdie, Howard F.; Morris, Marlene C.; Evans, Eloise H. & Paretzkin, Boris
Partner: UNT Libraries Government Documents Department

Standard X-ray Diffraction Powder Patterns: Section 12. Data for 57 Substances

Description: From Introduction: "This report presents information for 57 compounds (25 experimental and 32 calculated patterns), and is the two-second of the series of "Standard x-ray Diffraction Powder Patterns."
Date: February 1975
Creator: McMurdie, Howard F.; Morris, Marlene C.; Evans, Eloise H.; Paretzkin, Boris; de Groot, Johan H.; Hubbard, Camden R. et al.
Partner: UNT Libraries Government Documents Department

Standard X-ray Diffraction Powder Patterns: Section 17. Data for 54 Substances

Description: From Introduction: "This report presents information for 54 experimental patterns, and is the twenty-seventh of the series of Standard X-ray Diffraction Powder Patterns."
Date: October 1980
Creator: Morris, Marlene C.; McMurdie, Howard F.; Evans, Eloise H.; Paretzkin, Boris; Hubbard, Camden R. & Carmel, Simon J.
Partner: UNT Libraries Government Documents Department

Standard X-ray Diffraction Powder Patterns: Section 18. Data for 58 Substances

Description: From Introduction: "This report presents information for 58 experimental patterns, and is the twenty-eighth of the series of Standard X-ray Diffraction Powder Patterns."
Date: October 1981
Creator: Morris, Marlene C.; McMurdie, Howard F.; Evans, Eloise H.; Paretzkin, Boris; Parker, Harry S.; Panagiotopoulos, Nicolas C. et al.
Partner: UNT Libraries Government Documents Department

Standard X-ray Diffraction Powder Patterns: Section 14. Data for 68 substances

Description: From Introduction: "This report presents information for 68 compounds (27 experimental and 41 calculated patterns), and is the twenty-fourth of the series of "Standard x-ray Diffraction Powder Patterns."
Date: September 1977
Creator: Morris, Marlene C.; McMurdie, Howard F.; Evans, Eloise H.; Paretzkin, Boris; de Groot, Johan H.; Newberry, Rainer et al.
Partner: UNT Libraries Government Documents Department

Standard X-ray Diffraction Powder Patterns: Section 15. Data for 112 substances

Description: From Introduction: "This report presents information for 112 compounds (54 experimental and 58 calculated patterns), and is the twenty-fifth of the series of "Standard x-ray Diffraction Powder Patterns."
Date: October 1978
Creator: Morris, Marlene C.; McMurdie, Howard F.; Evans, Eloise H.; Paretzkin, Boris; de Groot, Johan H.; Weeks, Brenda S. et al.
Partner: UNT Libraries Government Documents Department

Standard X-ray Diffraction Powder Patterns : Section 16. Data for 86 Substances

Description: From Introduction: "This report presents information for 86 compounds (58 experimental and 28 calculated patterns), and is the twenty-sixth of the series of "Standard X-ray Diffraction Powder Patterns."
Date: October 1979
Creator: Morris, Marlene C.; McMurdie, Howard F.; Evans, Eloise H.; Paretzkin, Boris; de Groot, Johan H.; Hubbard, Camden R. et al.
Partner: UNT Libraries Government Documents Department

X-Ray Diffraction Data for Aromatic, Hydroaromatic, and Tetrahedral Structures of Carbon

Description: From Abstract: "A brief theoretical introduction of the Debye interference function is given, and an outline is made of the treatment of experimental data so that the experimental interference function can be obtained. This study is part of the investigations of the fundamental structure of coals and cokes by the Federal Bureau of Mines. X-ray diffraction is a very powerful tool in studying structure."
Date: unknown
Creator: Ergun, Sabri; Donaldson, W. F. & Smith, R. W., Jr.
Partner: UNT Libraries Government Documents Department

Corrosion Characteristics of Uranium : An Electron Diffraction Study

Description: Abstract: "The initial product formed on relatively oxide-free uranium has been shown by electron diffraction to be the alpha or low temperature form of uranium hydride. Such as oxide-free surface has been prepared by polishing the metal within the electron diffraction unit while maintaining a vacuum of 10^-7 mm Hg. Uranium dioxide lines appear later and grow in intensity. Electron diffraction studies are reported on vacuum annealed metal."
Date: 1956
Creator: Waber, James T. & Whyte, Dawn D.
Partner: UNT Libraries Government Documents Department

Diffraction Effects in Neutron Attenuation Measurements

Description: All errors due to diffraction effects in a neutron attenuation experiment are computed. Also a special experiment to measure the forward intensity of diffracted neutrons from lead and copper is described, and the results given. These agree with the theoretical values.
Date: November 1, 1947
Creator: Sewell, D.C. & McMillan, E.M.
Partner: UNT Libraries Government Documents Department

John Pendry: His Contributions to the Development of LEED Surface Crystallography

Description: In this paper we discuss the pivotal role played by Sir John Pendry in the development of Low Energy Electron Diffraction (LEED) during the past three decades; the earliest understanding on the physics of LEED to the development of sophisticated methods for the structural solution of complex surfaces.
Date: October 15, 2007
Creator: Somorjai, Gabor A. & Rous, P. J.
Partner: UNT Libraries Government Documents Department

X-Ray Diffraction Study of the Internal Structure of Supercooled Water

Description: From Summary: "A Bragg X-ray spectrometer equipped with a volume-sensitive Geiger counter and Soller slits and employing filtered molybdenum Ka radiation was used to obtain a set of diffracted intensity curves as a Punction of angle for supercooled water. Diffracted intensity curves in the temperature region of 21 to -16 C were obtained. The minimum between the two main diffraction peaks deepened continuously with lowering temperature, indicating a gradual change in the internal structure of the water. No discontinuity in this trend was noted at the melting point. The internal structure of supercooled water was concluded to become progressively more ice-like as the temperature is lowered."
Date: October 1951
Creator: Dorsch, Robert G. & Boyd, Bemrose
Partner: UNT Libraries Government Documents Department

Standard X-ray Diffraction Powder Patterns: Section 2. Data for 37 Substances

Description: Report discussing standard X-ray diffraction powder patterns for thirty-seven substances. Eleven are to replace patterns already given in the X-ray Powder Data File issued by the American Society for Testing and Materials, and twenty-six patterns indicated by asterisks are for substances not previously included. The X-ray Powder Data File is a compilation of diffraction patterns from many sources and is used for the identification of unknown crystalline materials by matching spacing and intensity measurements. The patterns were made with a Geiger counter X-ray diffractometer, using samples of high purity.
Date: May 3, 1963
Creator: Swanson, Howard E.; Morris, M. C.; Stinchfield, Roger P. & Evans, Eloise H.
Partner: UNT Libraries Government Documents Department

Standard X-ray Diffraction Powder Patterns: Section 1. Data for 46 Substances

Description: Report discussing forty-six standard X-ray diffraction powder patterns. Fourteen are to replace twelve patterns already given in the X-ray Powder Data File, and thirty-four are for substances not previously included. The X-ray Powder Data File is a compilation of diffraction patterns from many sources and is used for the identification of unknown crystalline materials by matching spacing and intensity measurements. The patterns were made with a Geiger counter X-ray diffractometer, using samples of high purity.
Date: March 9, 1962
Creator: Swanson, Howard E.; Morris, M. C.; Stinchfield, Roger P. & Evans, Eloise H.
Partner: UNT Libraries Government Documents Department

Fraunhofer Diffraction Pattern Produced by a Slit of Varying Width and its Application to High Speed Cameras

Description: Abstract: "A theoretical and experimental investigation is made of the diffraction pattern produced by a slit, whose aperture varies uniformly from a constant value A to zero. The results of this investigation are applied to a proposed high speed camera. It is shown that diffraction effects are very serious and cannot be neglected. It seems, unless the suggested design of this high speed camera is changed, the camera will be of little use for accurate measurements, and photographs will show too much blue to give details."
Date: November 11, 1947
Creator: Geiger, F. E. & Brixner, Berlyn
Partner: UNT Libraries Government Documents Department

X-ray diffraction investigation of minor phases of 20 high-temperature alloys

Description: Report presenting the use of x-ray diffraction methods to identify the minor phases present in 20 high-temperature alloys in current use. The minor phases were noted in seven of the 20 alloys. A description of the relation of the alloys to one another and their chemical properties are provided.
Date: July 1948
Creator: Rosenbaum, B. M.
Partner: UNT Libraries Government Documents Department