Absolute Thermal Neutron Determination
Title | Absolute Thermal Neutron Determination PDF eBook |
Author | Moses A. Greenfield |
Publisher | |
Pages | 30 |
Release | 1957 |
Genre | Heat flux |
ISBN |
Absolute Thermal Neutron Determination
Title | Absolute Thermal Neutron Determination PDF eBook |
Author | Roscoe L. Koontz |
Publisher | |
Pages | 40 |
Release | 1955 |
Genre | Beta rays |
ISBN |
Determination of absolute thermal neutron flux by gold foils
Title | Determination of absolute thermal neutron flux by gold foils PDF eBook |
Author | Wolfgang Pönitz |
Publisher | |
Pages | |
Release | 1963 |
Genre | |
ISBN |
The Absolute Measurement of Thermal Neutron Density
Title | The Absolute Measurement of Thermal Neutron Density PDF eBook |
Author | H. L. Anderson |
Publisher | |
Pages | 8 |
Release | 1947 |
Genre | Boron trifluoride |
ISBN |
Absolute Thermal Neutron Determination
Title | Absolute Thermal Neutron Determination PDF eBook |
Author | Moses A. Greenfield |
Publisher | |
Pages | 22 |
Release | 1955 |
Genre | Indium |
ISBN |
The Determination of Thermal Neutron Density from the Absolute Measurement of the Activity Induced in Gold Foils
Title | The Determination of Thermal Neutron Density from the Absolute Measurement of the Activity Induced in Gold Foils PDF eBook |
Author | Munson M. Thorpe |
Publisher | |
Pages | 106 |
Release | 1962 |
Genre | Gold |
ISBN |
ABSOLUTE THERMAL NEUTRON DETERMINATION. PART II. ABSOLUTE BETA COUNTING OF INDIUM FOILS.
Title | ABSOLUTE THERMAL NEUTRON DETERMINATION. PART II. ABSOLUTE BETA COUNTING OF INDIUM FOILS. PDF eBook |
Author | |
Publisher | |
Pages | |
Release | 1955 |
Genre | |
ISBN |
Correction factors for the effect of thickness on the selfscattering, self-absorption, and backscattering of beta particles from indium foils were determined for irradiated foils of 0.03 to 100 mg/cm2. The data were corrected for the activity produced by epithermal neutrons, self-shielding of thermal neutrons by the foil during irradiation, the backscatter from the foil support, and the contributions of gamma and x rays to the counting rate. The multiple beta spectra of indium produced a minimum in the self-absorption and self-scattering correction curve in the GM detector at approximately 1 mg/cm/ sup 2/ and a maximum at approximately 12 mg/cm2. The selfabsorption curve for indium in the 2 pi counter has the expected shape for a beta emitter with multiple spectra. The self-scattering and self-absorption correction factors for a 100 mg/cm2 indium foil are approximately 1.5 for a GM detector at 7% geometry and approximately 3 for a 2 pi counter. (D.L.C.).