Exhibit 24
POWER OF ATTORNEY
         Know all by these present that the undersigned
hereby constitutes and appoints each of Jodi Giordano
and Michael Rich of Bruker Corporation, signing
singly, the undersigned's true and lawful attorney-in-fact
to:
       (1)	execute for and on behalf of the
undersigned, in the undersigned's capacity as an officer
and/or director of Bruker Corporation (the "Company"),
Forms 3, 4 and 5 in accordance with Section 16(a) of the
Securities Exchange Act of 1934 and the rules thereunder;
	(2)	do and perform any and all acts for and on
behalf of the undersigned which may be necessary or desirable
to complete and execute any such Form 3, 4 or 5, complete
and execute any amendment or amendments thereto, and timely
file such form 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 which, 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 Securities Exchange Act of 1934.
       This Power of Attorney shall remain in full force
and effect until the undersigned is no longer required to
file Forms 3, 4 and 5 with respect to the undersigned's
holdings of and transactions in securities issued by 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 28th day of
May 2015.

/s/Marc Kastner		WITNESS: /s/Heather Williams

May 28, 2015