Diffractometer data collecting method and apparatus

Patent · Tue Apr 16 04:00:00 EDT 1991

OSTI ID:7173401

Steinmeyer, P A

Diffractometer data is collected without the use of a movable receiver. A scanning device, positioned in the diffractometer between a sample and detector, varies the amount of the beam diffracted from the sample that is received by the detector in such a manner that the beam is detected in an integrated form. In one embodiment, a variable diameter beam stop is used which comprises a drop of mercury captured between a pair of spaced sheets and disposed in the path of the diffracted beam. By varying the spacing between the sheets, the diameter of the mercury drop is varied. In another embodiment, an adjustable iris diaphragm is positioned in the path of the diffracted beam and the iris opening is adjusted to control the amount of the beam reaching the detector. 5 figures.

• DOE Contract Number: AC04-76DP03533
• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): A; US 5008909
• Application Number: PPN: US 7-476184
• OSTI ID: 7173401
• Country of Publication: United States
• Language: English

Related Subjects

440800* -- Miscellaneous Instrumentation-- (1990-)
47 OTHER INSTRUMENTATION
CONTROL EQUIPMENT
DATA ACQUISITION SYSTEMS
DESIGN
DIFFRACTOMETERS
EQUIPMENT
MEASURING INSTRUMENTS
OPERATION