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

    Volume 27, Issue 4 (October 1982)

    ISSN: 0022-1198

    CODEN: JFSOAD

    Published Online: 1 October 1982

    Page Count: 5


    Noblett, MG
    Special agent, U.S. Department of Justice, FBI, Washington, DC

    (Received 8 January 1982; accepted 23 February 1982)

    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.


    Paper ID: JFS12211J

    DOI: 10.1520/JFS12211J

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    Author
    Title The Use of a Scanning Monochromator as a Barrier Filter in Infrared Examinations of Documents
    Symposium , 0000-00-00
    Committee E30