Appendix 3

The Nonius Eucentric Goniometer Head

Eucentric goniometer head for diffractometer and camera use with height adjustment. Precision engineering for maximum stability and minimum backlash. The arcs and X-Y translations are not spring loaded. Conforms to IUCr specifications

Features:

	conforms to IUCr specifications
	close tolerances, non-spring-loaded X-Y-Z translations
	wide X-Y adjustment ranges (3mm)
	easy and safe height adjustment by thumb wheel rotation
	backlash free translations
	small cone of obscuration

designed for gas stream low temperature work