Journal Published Online: 01 October 1982
Volume 27, Issue 4

The Use of a Scanning Monochromator as a Barrier Filter in Infrared Examinations of Documents

CODEN: JFSCAS

Abstract

This study indicates that a scanning monochromator can replace long-pass filters in examining questioned documents using infrared techniques. The use of the monochromator may increase the capability of the examiner to restore obliterated writings.

Author Information

Noblett, MG
U.S. Department of Justice, FBI, Washington, DC
Pages: 5
Price: $25.00
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Stock #: JFS12211J
ISSN: 0022-1198
DOI: 10.1520/JFS12211J