UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934
                    -----------------------------------------
                                (Amendment No. ___)*


                              Accuray Incorporated
                              --------------------
                                (Name of Issuer)


                                  Common Stock
                         ------------------------------
                         (Title of Class of Securities)


                                   004397 10 5
                                 --------------
                                 (CUSIP Number)


                                December 31, 2007
             -------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)


Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

      [X]      Rule 13d-1(b)
      [ ]      Rule 13d-1(c)
      [ ]      Rule 13d-1(d)


     *The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which would
alter the disclosures provided in a prior cover page.

     The information required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).




CUSIP NO.: 004397 10 5              13G                       Page 2 of 5 Pages

1  NAMES OF REPORTING PERSONS
   I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

   Denver Investment Advisors LLC
   I.R.S. Identification Number: 84-1284659
--------------------------------------------------------------------------------

2  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
   (See Instructions)
   (a) [ ]
   (b) [ ]
--------------------------------------------------------------------------------

3  SEC USE ONLY
--------------------------------------------------------------------------------

4  CITIZENSHIP OR PLACE OF ORGANIZATION

   Colorado
--------------------------------------------------------------------------------

               5  SOLE VOTING POWER:         1,271,980(1)
   NUMBER OF   -----------------------------------------------------------------
    SHARES
 BENEFICIALLY  6  SHARED VOTING POWER:       None
   OWNED BY    -----------------------------------------------------------------
     EACH
   REPORTING   7  SOLE DISPOSITIVE POWER:    1,271,980(1)
    PERSON     -----------------------------------------------------------------
     WITH
               8  SHARED DISPOSITIVE POWER:  None
--------------------------------------------------------------------------------

9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    3,574,280
--------------------------------------------------------------------------------

10  CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
    (SEE INSTRUCTIONS)   [  ]
--------------------------------------------------------------------------------

11  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

    6.5%
--------------------------------------------------------------------------------

12  TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

    IA
--------------------------------------------------------------------------------

(1)  Reporting Person has no voting or dispositive power over 2,302,300 shares.


CUSIP NO.: 004397 10 5                13G                     Page 3 of 5 Pages

ITEM 1.
  (a)  NAME OF ISSUER:

       Accuray Incorporated

  (b)  ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:

       1310 Chesapeake Terrace
       Sunnyvale, CA  94089

ITEM 2.
  (a)  NAME OF PERSON FILING:

       Denver Investment Advisors LLC

  (b)  ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE:

       1225 17th Street, 26th Floor
       Denver, Colorado 80202

  (c)  CITIZENSHIP:

       Colorado

  (d)  TITLE OF CLASS OF SECURITIES:

       Common Stock

  (e)  CUSIP NUMBER:

       004397 10 5

ITEM 3.  IF THIS STATEMENT IS FILED PURSUANT TO SECTIONS 240.13d-1(b) OR
         240.13d-2(b) OR (c), CHECK WHETHER THE PERSON FILING IS A:

  (a) [ ]  Broker or Dealer registered under Section 15 of the Act
           (15 U.S.C. 78o)

  (b) [ ]  Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c)

  (c) [ ]  Insurance Company as defined in section 3(a)(19) of the Act
           (15 U.S.C. 78c)

  (d) [ ]  Investment company registered under section 8 of the Investment
           Company Act of 1940 (15 U.S.C. 80a-8)

  (e) [X]  An investment adviser in accordance with
           section 240.13d-1(b)(1)(ii)(E)



CUSIP NO.: 004397 10 5                13G                     Page 4 of 5 Pages

  (f) [ ] An employee benefit plan or endowment fund in accordance with section
          240.13d-1(b)(1)(ii)(F)

  (g) [ ] A parent holding company or control person in accordance with Section
          240.13d-1(b)(1)(ii)(G)

  (h) [ ] A savings association as defined in Section 3(b) of the Federal
          Deposit Insurance Act (12 U.S.C. 1813)

  (i) [ ] A church plan that is excluded from the definition of an investment
          company under section 3(c)(14) of the Investment Company Act of 1940
          (15 U.S.C. 80a-3)

  (j) [ ]  Group, in accordance with Section 240.13d-1(b)(1)(ii)(J)


ITEM 4.  OWNERSHIP

     For Denver Investment Advisors LLC ("DIA"), the following sets forth the
amount of shares beneficially owned, the percent of class owned as of
December 31, 2007, the number of shares to which DIA has the sole power and the
shared power to vote or to direct the vote of the shares, and the number of
shares to which DIA has the sole power and the shared power to dispose or to
direct the disposition of the shares:

  (a)  Amount Beneficially Owned:  3,574,280

  (b)  Percent of Class:  6.5%

  (c)  Number of shares as to which DIA has:

         (i)  Sole power to vote or to direct the vote:

              1,271,980(1)

        (ii)  Shared power to vote or to direct the vote:

              None

       (iii)  Sole power to dispose or to direct the disposition of:

              1,271,980(1)

        (iv)  Shared power to dispose or to direct the disposition of:

              None

------------
(1)  Reporting Person has no voting or dispositive power over 2,302,300 shares.



CUSIP NO.: 004397 10 5             13G                        Page 5 of 5 Pages

ITEM 5.  OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.

     If this statement is being filed to report the fact that as of the date
hereof the reporting person has ceased to be the beneficial owner of more than
5% of the class of securities, check the following [  ].

ITEM 6.  OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.

         This item is not applicable.

ITEM 7.  IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH  ACQUIRED
         THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY OR
         CONTROL PERSON.

         This item is not applicable.

ITEM 8.  IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.

         This item is not applicable

ITEM 9.  NOTICE OF DISSOLUTION OF GROUP.

         This item is not applicable.

ITEM 10.  CERTIFICATION.

     By signing below the undersigned certifies that, to the best of its
knowledge and belief, the securities referred to above were acquired and are
held in the ordinary course of business and were not acquired and are not held
for the purpose of or with the effect of changing or influencing the control of
the issuer of the securities and were not acquired and are not held in
connection with or as a participant in any transaction having that purpose or
effect.

                                 SIGNATURE

     After reasonable inquiry and to the best of the undersigned's knowledge and
belief, the undersigned certifies that the information set forth in this
statement is true, complete and correct.

Dated: February 13, 2008                    DENVER INVESTMENT ADVISORS LLC


                                            By: /s/ Todger Anderson
                                                --------------------------------
                                                  Todger Anderson
                                                  Chairman and Chief Compliance
                                                    Officer