1.
Rev Sci Instrum
; 49(5): 665, 1978 May.
Artículo
en Inglés
| MEDLINE
| ID: mdl-18699168
RESUMEN
A two-crystal double axis x-ray spectrometer, capable of goniometric accuracy on the order of 0.1", has been developed. Some of its unique design features are presented. These include (1) a modified commercial thrust bearing which furnishes a precise, full circle theta:2theta coupling, (2) a new tangent drive system design in which a considerable reduction of the lead screw effective pitch is achieved, and (3) an automatic step scanning control which eliminates most of the mechanical deficiencies of the tangent drive by directly reading the tangent arm displacement.
Asunto(s)
Cristalografía/métodos , Electrónica/instrumentación , Procesamiento de Señales Asistido por Computador/instrumentación , Espectrometría por Rayos X/instrumentación , Transductores , Espectrometría por Rayos X/métodos
2.
Harefuah
; 143(4): 303-4, 2004 Apr.
Artículo
en Hebreo
| MEDLINE
| ID: mdl-15116591