POWER OF ATTORNEY

    Know all by these presents, that the undersigned hereby constitutes and
appoints each of Daniel J. Fujii and Kara B. Venegas, signing singly, the
undersigned's true and lawful attorney-in- fact to:

    (1)     execute for and on behalf of the undersigned, all reports to be
            filed by the undersigned pursuant to Section 16(a) of the Securities
            Exchange Act of 1934, as amended (the "Exchange Act") and the rules
            promulgated thereunder (including Forms 3, 4, and 5 and any
            successor forms) (the "Section 16 Reports") with respect to the
            equity securities of Landauer, Inc. (the "Company");

    (2)     do and perform any and all acts for and on behalf of the undersigned
            that may be necessary or desirable to complete and execute any such
            Section 16 Report, complete and execute any amendment or amendments
            thereto, and file such report with the United States Securities and
            Exchange Commission and any stock exchange or similar authority; and

    (3)     take any other action of any type whatsoever in connection with the
            foregoing that, in the opinion of such attorney-in-fact, may be of
            benefit to, in the best interest of, or legally required by, the
            undersigned, it being understood that the documents executed by such
            attorney-in-fact on behalf of the undersigned pursuant to this Power
            of Attorney shall be in such form and shall contain such terms and
            conditions as such attorney-in-fact may approve in such
            attorney-in- fact's discretion.

    The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or such
attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be
done by virtue of this Power of Attorney and the rights and powers herein
granted.  The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are not assuming,
nor is the Company assuming, any of the undersigned's responsibilities to comply
with Section 16 of the Exchange Act.

    This Power of Attorney shall be effective as of the date set forth below and
shall continue in full force and effect until the undersigned is no longer
required to file Section 16 Reports with respect to the equity securities of the
Company, unless earlier revoked by the undersigned in a signed writing delivered
to the foregoing attorneys-in-fact.

    IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 19th day of January, 2017.

                                      Signature: /s/ Jeffrey A. Strong
                                      Name:  	Jeffrey A. Strong