Absolute calibration of the National Bureau of Standards photoneutron standard: II. Absorption in manganese sulfate
نویسندگان
چکیده
منابع مشابه
An Absolute Calibration of the National Bureau of Standards Thermal Neutron Flux
The NBS Standard Thermal Neutron Flux has been calibrated in terms of the B(n, a) cross section [De Juren and Rosenwasser, 1954] and of the gold thermal neutron capture cross section [Mosburg and Murphey, 1961]. The present calibration, based on absolute counting of Au activity by the 4:ir@-y coincidence method, represents part of a program of international comparisons of thermal neutron flux d...
متن کاملof Research of the National Bureau of Standards Grid Plate Calibration at the National Bureau of Standards January - February 1988
National Bureau of Standards Gaithersburg, MD 20899 Grid plates are calibrated by a completely automated high precision measuring machine which uses a computer vision system to detect and locate the grid marks. The system routinely calibrates plates of up to 600x600 millimeters with accuracies of 0.5 micrometers. Descriptions of the system components, level of performance and tests of the absol...
متن کاملmesuring the staff technology readiness, the case of a multi national chemical company operating in iran
چکیده ندارد.
15 صفحه اولA Report on the National Bureau of Standards pH Standards
In 1980, the research program in pH was re-established at the National Bureau of Standards (NBS). This report describes the state of this research, as well as the state of the NBS pH standards. The thermodynamic definition and the determination of pH are elaborated. The problems of liquid junction potentials encountered in the practical determination of pH are discussed. The goal of the researc...
متن کاملthe effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
ذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Research of the National Bureau of Standards
سال: 1955
ISSN: 0091-0635
DOI: 10.6028/jres.055.037