Published Online: 1 October 1982
Page Count: 5
The Use of a Scanning Monochromator as a Barrier Filter in Infrared Examinations of Documents
U.S. Department of Justice, FBI,
(Received 8 January 1982; accepted 23 February 1982)
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.
questioned documents, reflectance, monochromators
Paper ID: JFS12211J
Title The Use of a Scanning Monochromator as a Barrier Filter in Infrared Examinations of Documents
Symposium , 0000-00-00
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