QuickLinks
 -- Click here to rapidly navigate through this document

 
 

Exhibit 10.27    
    


NOMOS
CORPORATION

2591 Wexford Bayne Road

Sewickley, PA 15143 


February 11,
2002 


John
Friede

One Shore Road

Rye, NY 10580 


Dear
John: 


        NOMOS
Corporation (the "Company") considers it essential to the best interests of its stockholders to foster the continuous employment of key management personnel. 


        In
order to induce you to remain in the employ of the Company, the Company agrees that you shall receive the severance benefits set forth in this letter agreement (the "Agreement"). This
benefit replaces and supersedes the benefits set forth in that certain letter agreement dated June 30, 2000, between you and the Company, which prior agreement is deemed null and void. 


        1.    Severance.    Subject to Section 3 of this letter, you will receive a severance payment equal to twelve
months of your base salary and medical benefits in the event your employment with the Company is terminated at any time after this agreement. 


        2.    Payment Terms.    The severance payment contemplated by this Agreement shall be payable in cash in a single lump
sum within seven days after the termination of your employment except as noted below. 


        3.    Severance Terms.    The severance shall be payable to you if your employment with the Company is terminated,
unless such termination is (a) because of your death or Disability; (b) by the Company for Cause; or (c) by you for other than Good Reason. 


        4.    Disability.    If, as a result of your incapacity due to physical or mental illness, you shall have been absent
from the full-time performance of your duties with the Company for six (6) consecutive months, and within thirty (30) days after written notice of termination is given you
shall not have returned to the full-time performance of your duties, your employment maybe terminated for "Disability." 


        5.    Cause.    Termination by the Company of your employment for "Cause" shall mean termination (a) upon the
willful and continued failure by you to substantially perform your duties with the Company (other than any such failure resulting from your incapacity due to physical or mental illness), after a
written demand for substantial performance is delivered to you by the Board, or (b) the willful engaging by you in conduct which is demonstrably and materially injurious to the Company,
monetarily or otherwise. For purposes of this Section, no act, or failure to act, on your part shall be deemed "willful" unless done, or omitted to be done, by you not in good faith and without
reasonable belief that your action or omission was in the best interest of the Company. 


        6.    Good Reason.    You shall be entitled to terminate your employment for Good Reason. For purposes of this
Agreement, "Good Reason" shall mean the occurrence of: 



        (a)   the
assignment to you of any material duties inconsistent (unless in the nature of a promotion) with the position in the Company that you hold, or a significant adverse
reduction or alteration in the nature or status of your position, duties, status or responsibilities or the conditions of your employment; 


        (b)   a
reduction by the Company in your annual base salary as the same may be increased from time to time, except for across-the-board salary
reductions similarly affecting all management personnel of the Company; and 






 




        (c)   the
Company's requiring you to be based more than 50 miles from the location at which you were based, except for required travel on the Company's business to an extent
substantially consistent with your present business travel obligations. 




        7.    Successors; Binding Agreement.    (i) The Company will require any successor (whether direct or
indirect, by purchase, merger, consolidation or otherwise) to all or substantially all of the business and/or assets of the Company to expressly assume and agree to perform this Agreement in the same
manner and to the same extent that the Company would be required to perform it if no such succession had taken place. 



         (ii)  This
Agreement shall inure to the benefit of and be enforceable by you and your personal or legal representatives, executors, administrators, successors, heirs,
distributees, devisees and legatees. 




        8.    Miscellaneous.    No provision of this Agreement may be modified, waived or discharged unless such waiver,
modification or discharge is agreed to in writing and signed by you and such officer as may be specifically designated by the Board. No waiver by either party hereto at any time of any breach by the
other party hereto of, or compliance with, any condition or provision of this Agreement to be performed by such other party shall be deemed a waiver of similar or dissimilar provisions or conditions
at the same or at any prior or subsequent time. No agreements or representations, oral or otherwise, express or implied, with respect to the subject matter hereof have been made by either party which
are not expressly set forth in this Agreement. The validity, interpretation, construction and performance of this Agreement shall be governed by the laws of the Commonwealth of Pennsylvania without
regard to its conflicts of law principles. 


        9.    Validity.    The invalidity or unenforceability of any provision of this Agreement shall not affect the validity
or enforceability of any other provision of this Agreement, which shall remain in full force and effect. 


        10.    Counterparts.    This Agreement may be executed in several counterparts, each of which shall be deemed to be an
original but all of which together will constitute one and the same instrument. 


        11.    Entire Agreement.    This Agreement sets forth the entire agreement of the parties hereto in respect of the
subject matter contained herein and supersedes all prior agreements, Promises, covenants, arrangements, communications, representations or warranties, whether oral or written, by any officer, employee
or representative of any party hereto; and any prior agreement of the parties hereto in respect of the subject matter contained herein is hereby terminated and cancelled. 


        If
this letter sets forth our agreement on the subject matter hereof, kindly sign and return to the Company the enclosed copy of this letter, which will then constitute our agreement on
this subject. 



	 	 	Sincerely,
	

 	
 	

NOMOS CORPORATION
	

 	
 	

By:	

/s/  JOHN W. MANZETTI      

	 	 	Name: John W. Manzetti

Title. President and Chief Executive Officer
	

Agreed to this 28th day of March, 2003	
 	

 	

 
	

/s/  JOHN A. FRIEDE      
 Name: John A. Friede	
 	

 	

 




2









QuickLinks



Exhibit 10.27