Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

NIST Reference Densitometer for Visual Diffuse Transmission Density

Published

Author(s)

E A. Early, Christopher L. Cromer, X Xiong, D J. Dummer, Thomas R. O'Brian, Albert C. Parr

Abstract

The Optical Technology Division of the National Institute of Standards and Technology has developed a new reference densitometer for measuring visual diffuse transmission densities using the diffuse influx mode. This densitometer is used to calibrate both x-ray and photographic film step tablet Standard Reference Materials. The design, characterization, and operation of the densitometer are detailed. The densitometer was fully characterized both to verify compliance with the applicable documentary standards and to determine the combined uncertainty in transmission density associated with the calibrations.
Citation
Journal of Research (NIST JRES) -
Volume
43

Keywords

densitometer, optical density, visual diffuse transmission density

Citation

Early, E. , Cromer, C. , Xiong, X. , Dummer, D. , O'Brian, T. and Parr, A. (1999), NIST Reference Densitometer for Visual Diffuse Transmission Density, Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=841323 (Accessed June 24, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created July 26, 1999, Updated February 17, 2017