Abstract
The Neutron Diffraction technique, it`s a helpful tool for the study of materials. The purpose, was to verify that such technique works with the Neutron Diffractometer of National Institute of Nuclear Research. The scope, is to study crystalline materials by the Neutron Diffraction Method, that means it completion with Bragg`s Law. There exist a lot of diffraction techniques that depend on the kind of study to do. In this case the study was to measure known samples to have a correlation between parameters such a extinction factor and dislocation density. Known copper deformed samples were measured to observe the extinction effect and it could be observed. We had to calibrate the Neutron Diffractometer, the detection system and to have an optimal movement control of diffractometer devices by mean of a microcomputer. Also, was necessary to control the Reactor TRIGA operation to minimize the neutron flux oscillation. It was not possible the quantification of dislocation density in the samples because the relation signal/background was about one and it gives high inaccuracy. To correct this problem, it`s necessary to have a better shielding to minimize the contribution of the background. The conclusion is that the Neutron Diffractometer is in conditions to carry
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Citation Formats
Macias Betanzos, L R.
Implementation of neutron diffraction technique at Nuclear Center of National Institute of Nuclear Research for study of materials.; Implementacion de la tecnica de difraccion de neutrones en el Centro Nuclear del Instituto Nacional de Investigaciones Nucleares para el estudio de materiales..
Mexico: N. p.,
1993.
Web.
Macias Betanzos, L R.
Implementation of neutron diffraction technique at Nuclear Center of National Institute of Nuclear Research for study of materials.; Implementacion de la tecnica de difraccion de neutrones en el Centro Nuclear del Instituto Nacional de Investigaciones Nucleares para el estudio de materiales..
Mexico.
Macias Betanzos, L R.
1993.
"Implementation of neutron diffraction technique at Nuclear Center of National Institute of Nuclear Research for study of materials.; Implementacion de la tecnica de difraccion de neutrones en el Centro Nuclear del Instituto Nacional de Investigaciones Nucleares para el estudio de materiales."
Mexico.
@misc{etde_10130125,
title = {Implementation of neutron diffraction technique at Nuclear Center of National Institute of Nuclear Research for study of materials.; Implementacion de la tecnica de difraccion de neutrones en el Centro Nuclear del Instituto Nacional de Investigaciones Nucleares para el estudio de materiales.}
author = {Macias Betanzos, L R}
abstractNote = {The Neutron Diffraction technique, it`s a helpful tool for the study of materials. The purpose, was to verify that such technique works with the Neutron Diffractometer of National Institute of Nuclear Research. The scope, is to study crystalline materials by the Neutron Diffraction Method, that means it completion with Bragg`s Law. There exist a lot of diffraction techniques that depend on the kind of study to do. In this case the study was to measure known samples to have a correlation between parameters such a extinction factor and dislocation density. Known copper deformed samples were measured to observe the extinction effect and it could be observed. We had to calibrate the Neutron Diffractometer, the detection system and to have an optimal movement control of diffractometer devices by mean of a microcomputer. Also, was necessary to control the Reactor TRIGA operation to minimize the neutron flux oscillation. It was not possible the quantification of dislocation density in the samples because the relation signal/background was about one and it gives high inaccuracy. To correct this problem, it`s necessary to have a better shielding to minimize the contribution of the background. The conclusion is that the Neutron Diffractometer is in conditions to carry out investigation on the material field, today it can be lattice constants, crystalline phases and measurements of metallic textures. For such studies, it`s necessary to have samples with 2 cm{sup 3} or higher to increase the relation signal/background. At present, we have the process software to give the interpretation of the Neutron Diffraction process. (Author). 12 refs, 16 figs.}
place = {Mexico}
year = {1993}
month = {Dec}
}
title = {Implementation of neutron diffraction technique at Nuclear Center of National Institute of Nuclear Research for study of materials.; Implementacion de la tecnica de difraccion de neutrones en el Centro Nuclear del Instituto Nacional de Investigaciones Nucleares para el estudio de materiales.}
author = {Macias Betanzos, L R}
abstractNote = {The Neutron Diffraction technique, it`s a helpful tool for the study of materials. The purpose, was to verify that such technique works with the Neutron Diffractometer of National Institute of Nuclear Research. The scope, is to study crystalline materials by the Neutron Diffraction Method, that means it completion with Bragg`s Law. There exist a lot of diffraction techniques that depend on the kind of study to do. In this case the study was to measure known samples to have a correlation between parameters such a extinction factor and dislocation density. Known copper deformed samples were measured to observe the extinction effect and it could be observed. We had to calibrate the Neutron Diffractometer, the detection system and to have an optimal movement control of diffractometer devices by mean of a microcomputer. Also, was necessary to control the Reactor TRIGA operation to minimize the neutron flux oscillation. It was not possible the quantification of dislocation density in the samples because the relation signal/background was about one and it gives high inaccuracy. To correct this problem, it`s necessary to have a better shielding to minimize the contribution of the background. The conclusion is that the Neutron Diffractometer is in conditions to carry out investigation on the material field, today it can be lattice constants, crystalline phases and measurements of metallic textures. For such studies, it`s necessary to have samples with 2 cm{sup 3} or higher to increase the relation signal/background. At present, we have the process software to give the interpretation of the Neutron Diffraction process. (Author). 12 refs, 16 figs.}
place = {Mexico}
year = {1993}
month = {Dec}
}