POWER OF ATTORNEY

Know all by these presents, that the undersigned hereby authorizes

(i)  each  of  Kevin  Waters,  Kristen  Howells  and  Alaleh  Nouri  of  Accuray
Incorporated (the "Company") and (ii) any attorney employed in the Palo Alto, CA
office  of  Wilson Sonsini Goodrich & Rosati, to individually execute for and on
behalf  of  the  undersigned, in the undersigned's capacity as an officer and/or
director of the Company, Forms 3, 4 and 5, and any amendments thereto, and cause
such  form(s)  to be filed with the U.S. Securities and Exchange Commission (the
"SEC")  pursuant to Section 16(a) of the Securities Act of 1934, relating to the
undersigned's beneficial ownership of securities in the Company. 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 16th day of September, 2015.

/s/ Kevin Waters
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Signature

Kevin Waters
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