Published 1980
| Version v1
Miscellaneous
Open
Systematic and random erros in lattice parameter determinations
Description
A new method is proposed for evaluation of diffraction data used in precise determination of lattice parameters. The method is based on separation and systematic erros on the diffraction angles level, where the randon part of erros is independent on the 0 angle. The separation is enable by assumption that the systematic part of erros depends on the 0 angle linearly. In that situation the high precision in lattice parameters determination is related more to reducing the randon errors content that to the presence of unremoved systematic errors. (Author)
Availability note (English)
MF available from INIS under the Report Number.Abstract (Portuguese)
E proposto um novo metodo para a avaliacao de dados de difracao por raios x usados em determinacoes precisas de parametros de rede cristalina. O metodo e baseado na separacao dos erros sistematicos e aleatorios ao nivel dos angulos de difracao medidos, onde a parte aleatoria dos erros e independente do angulo 0. A separacao e realizada sob a suposicao de que a parte sistematica dos erros depende linearmente do angulo 0. Nesta situacao, alta precisao na determinacao do parametro de rede depende principalmente de um baixo nivel de erros aleatorios no dados medidos, em vez dos erros sistematicos remanescentes. (Autor)Files
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Additional details
Additional titles
- Original title (Portuguese)
- Erros sistematicos e aleatorios nas determinacoes do parametro de rede
Publishing Information
- Imprint Pagination
- 79 p.
- Report number
- INIS-BR--754
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 18074823
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- ACCURACY; LATTICE PARAMETERS; MEASURING METHODS; RANDOM PHASE APPROXIMATION; X-RAY DIFFRACTION
- Descriptors DEC
- COHERENT SCATTERING; DIFFRACTION; SCATTERING