Document:

QuickLinks
 -- Click here to rapidly navigate through this document

 
 

Exhibit 10.4    
    

REGISTRATION
RIGHTS AGREEMENT 

by
and between 

NORTH
AMERICAN SCIENTIFIC, INC. 

AND

THE
INDIVIDUALS AND ENTITIES LISTED ON THE SIGNATURE PAGES HERETO 

___________________________________

Dated
as of                            , 200  

___________________________________ 

   
        This REGISTRATION RIGHTS AGREEMENT, dated as
of                            , 200            
(this "Agreement"), is entered into by and between North
American Scientific, Inc., a Delaware corporation (the "Acquiror"), and the individuals and entities listed on the signature page hereto (individually, a
"Holder" and collectively, the "Holders"). 

RECITALS  

        WHEREAS, the Acquiror and AM Capital I, Inc., a Delaware corporation and wholly-owned subsidiary of the Acquiror ("AM
Capital"), and NOMOS Corporation, a Delaware corporation ("NOMOS"), have entered into an Agreement and Plan of Merger (the "Merger
Agreement") dated as of October 26, 2003, pursuant to which NOMOS will be merged with and into AM Capital; and 

        WHEREAS,
the parties desire to set forth herein their agreements as to the piggyback registration rights of each of the Holders with respect to such Holder's shares of Common Stock, as
part of and as consideration for the transactions contemplated by the Merger Agreement; 

        WHEREAS,
the execution and delivery of this Agreement by the Acquiror with the Holders is a condition to closing the transactions contemplated by the Merger Agreement. 

        NOW,
THEREFORE, in consideration of the premises and the mutual promises herein made, and in consideration of the representations, warranties and covenants herein contained, and for
other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows: 

        1.    Definitions.    

        As
used herein, unless the context otherwise requires, the following terms have the following respective meanings: 

        "Acquiror"
has the meaning set forth in the preamble hereof. 

        "Agreement"
has the meaning set forth in the preamble hereof. 

        "Business
Day" means any day except Saturday and Sunday and any day that shall be a U.S. federal legal holiday or a day on which banking institutions in the
State of Delaware generally are authorized or required by law or other governmental action to close. 

        "Commission"
means the United States Securities and Exchange Commission or any other federal agency which shall at some future point in time be administering
the Securities Act. 

        "Common
Stock" means the common stock, par value $.01 per share, of the Acquiror. 

        "Exchange
Act" means the United States Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder. 

        "Indemnified
Party" has the meaning set forth in Section 7(c). 

        "Indemnifying
Party" has the meaning set forth in Section 7(c). 

        "Initial
Period" means (i) 18 months from the date hereof with respect to the Holder, John A. Friede, and (ii) six months from the date
hereof with respect to all other Holders. 

        "Holder"
or "Holders" has the meaning set forth in the preamble hereof. 

        "Losses"
has the meaning set forth in Section 7(a). 

        "Maximum
Offering Size" has the meaning set forth in Section 3. 

        "Merger
Agreement" has the meaning set forth in the Recitals hereof. 

1

 

        "Person"
means any individual, corporation, limited liability company, association, partnership, trust or any other entity or organization, including any
government entity. 

        "Proceeding"
means an action, claim, suit, investigation or proceeding (including, without limitation, an investigation or partial proceeding, such as a
deposition), whether commenced or threatened. 

        "Prospectus"
means the prospectus included in any Registration Statement (including, without limitation, a prospectus that includes any information
previously omitted from a prospectus filed as part of an effective registration statement in reliance upon Rule 430A promulgated by the Securities Act), as amended or as supplemented by any and
all prospectus and all other amendments and supplements to the prospectus, including supplements and as amended by any and all post-effective amendments and including all material
incorporated by reference or deemed to be included by reference in such prospectus. 

        "Registrable
Securities" means (i) the shares of Common Stock or (ii) any security into or for which such Common Stock has been converted or
exchanged in connection with a combination of shares, recapitalization, merger, consolidation or otherwise; provided, however, that
Registrable Securities shall not include any securities (A) the sale of which shall have been registered pursuant to the Securities Act and which shares have been sold pursuant to such
registration or (B) that shall have been sold pursuant to Rule 144. 

        "Registration
Expenses" means all expenses incurred in effecting any registration pursuant to this Agreement including, without limitation, all registration,
qualification and filing fees, printing expenses, escrow fees, fees and disbursements of counsel for the Company and one special counsel for the Holders, blue sky fees and expenses and expenses of any
regular or special audits incident to or required by any such registration, qualification and filing. 

        "Registration
Statement" means any registration statement under the Securities Act on an appropriate form (which form shall be available for the sale of the
Registrable Securities in accordance with the intended method or methods of distribution thereof and shall include all financial statements required by the Commission to be filed herewith) which
covers Registrable Securities pursuant to the provisions of this Agreement, including the Prospectus included in such registration statement, amendments (including post-effective
amendments) and supplements to such registration statement, and all exhibits to and all material incorporated by reference in such registration statement. 

        "Rule 144"
means Rule 144 under the Securities Act, as such Rule may be amended from time to time, or any similar rule or regulation hereafter
adopted by the Commission. 

        "Securities
Act" means the United States Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder. 

        "Selling
Expenses" means all underwriting discounts, selling commissions and stock transfer taxes applicable to the sale of Registrable Securities and fees
and disbursements of counsel for any Holder (other than the fees and disbursements of one special counsel to the Holders included in Registration Expenses). 

        "Selling
Holders" means Holders offering Registrable Securities for sale pursuant to a registration effected under this Agreement. 

        "Shelf
Registration Statement" means any shelf Registration Statement pursuant to Rule 415 under the Securities Act, or any similar rule or regulation
hereafter adopted by the Commission, on Form S-3 (or any substitute form that may be adopted by the Commission). 

2

 

        "Underwritten
Registration" or "Underwritten Offering" means a registration in connection with which securities of the Acquiror
are sold to an underwriter for reoffering to the public pursuant to an effective registration statement. 

        2.    Piggyback Registration.    

        (a)   If
the Acquiror proposes to file a Registration Statement (other than on a registration statement on Form S-4 or S-8 (or any
substitute form that may be adopted by the Commission)) with respect to an offering of Common Stock for its own account pursuant to an Underwritten Offering, then the Acquiror shall provide written
notice of such proposed filing to each Holder as soon as practicable (but in no event less than 20 days before the anticipated filing date of such Registration Statement). If within
15 days after receipt of such notice, any Holder requests the inclusion in such Registration Statement of some or all of the Registrable Securities held by such Holder, the Acquiror shall use
its reasonable best efforts to include such Registrable Securities in such Registration Statement; provided, however, that during the Initial
Period (i) each Holder shall only be permitted to participate in such registration if the Acquiror proposes to include the securities of another Person in such Registration Statement and
(ii) each Holder shall only be permitted to request the inclusion in such Registration Statement of, and the Acquiror shall only be required to use its reasonable best efforts to include, up to
25 percent of the Registrable Securities held by each such Holder. 

        (b)   If
the Acquiror acquires another Person pursuant to a merger, asset sale, stock transfer or other acquisition transaction and, in connection with such transaction, the
Acquiror proposes to file a Shelf Registration Statement related to the resale of any restricted securities of the Acquiror received by any Person in connection with such transaction, then the
Acquiror shall provide written notice of such proposed filing to each Holder as soon as practicable (but in no event less than 20 days before the anticipated filing date of such Shelf
Registration Statement). If within 15 days after receipt of such notice, any Holder requests the inclusion in such Shelf Registration Statement of some or all of the Registrable Securities held
by such Holder, the Acquiror shall use its reasonable best efforts to include such Registrable Securities in such Shelf Registration Statement; provided,
however, that during the Initial Period, each Holder shall only be permitted to request the inclusion in such Shelf Registration Statement of, and the Acquiror shall only
be required to use its reasonable best efforts to include, up to 25 percent of the Registrable Securities held by each such Holder. 

        3.    Reduction of Offering.    

        If
the managing underwriters of an Underwritten Offering advise the Acquiror in writing that, in their opinion, the amount of securities of the Acquiror proposed to be sold in such
offering, together with the Registrable Securities requested to be sold by the Holders under Section 2 hereof and any securities requested to be sold by any other Person, exceeds the amount of
securities of the Acquiror which can be sold in such offering without adversely impacting the marketing of the securities being sold by the Acquiror in such offering or otherwise materially and
adversely impacting the success of such offering, there shall be included in such offering, in the following listed priority, only the amount of such securities of the Acquiror which, in the opinion
of such managing underwriters, can be sold (the "Maximum Offering Size") without materially and adversely impacting the marketing of the securities being sold by the
Acquiror in such offering or otherwise materially and adversely impacting the success of such offering: 

        (i)    first,
all the shares of Common Stock which the Acquiror proposes to sell for its own account in such offering; 

        (ii)   second,
all Registrable Securities requested to be included in such offering pursuant to Section 2 and any securities requested to be included in such offering
by any other Person that is entitled to piggyback registration rights (allocated, if necessary for such offering not to exceed the Maximum Offering Size, pro rata among the Holders and such other
Persons on the basis of the 

3

 

relative
number of shares so requested to be included in such Underwritten Offering by each such Holder and other Person); and 

        (iii)  thereafter,
any other securities requested to be included in such offering. 

        4.    Registration Expenses.    

        All
Registration Fees incident to the performance of or compliance with this Agreement by the Acquiror shall be borne by the Acquiror. All Selling Expenses relating to the securities
registered on behalf of the Holders shall be borne by the Holders included in such registration pro rata among each other on the basis of the number of Registrable Securities so registered. 

        5.    Registration Procedures.    

        In
the case of each Shelf Registration Statement effected by the Company, the Company will keep each Holder advised in writing as to the initiation of each registration and as to the
completion thereof. At its expense, the Company will do each of the following with respect to such Shelf Registration Statement: 

        (a)   Keep
such registration effective for a period of ending on the earlier of the date which is sixty (60) days from the effective date of the Shelf Registration
Statement or such time as the Holder or Holders have completed the distribution described in the Shelf Registration Statement relating thereto. 

        (b)   Prepare
and file with the Commission such amendments and supplements to such Shelf Registration Statement and the Prospectus used in connection with such Shelf
Registration Statement as may be necessary to comply with the provisions of the Securities Act with respect to the disposition of all securities covered by such Shelf Registration Statement for the
period set forth in subsection (a) above; 

        (c)   Furnish
such number of Prospectuses, including any preliminary prospectuses, and other documents incident thereto, including any amendment of or supplement to the
Prospectus, as a Holder from time to time may reasonably request; 

        (d)   Notify
each seller of Registrable Securities covered by such Shelf Registration Statement at any time when a Prospectus relating thereto is required to be delivered
under the Securities Act of the happening of any event as a result of which the Prospectus included in such Shelf Registration Statement, as then in effect, includes an untrue statement of a material
fact or omits to state a material fact required to be stated therein or necessary to make the statements therein not misleading or incomplete in light of the circumstances then existing, and following
such notification promptly prepare and furnish to such seller a reasonable number of copies of a supplement to or an amendment of such Prospectus as may be necessary so that, as thereafter delivered
to the purchasers of such shares, such Prospectus shall not include an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the
statements therein not misleading or incomplete in light of the circumstances then existing; 

        (e)   Provide
a transfer agent and registrar for all Registrable Securities pursuant to such Shelf Registration Statement and a CUSIP number for all such Registrable
Securities, in each case not later than the effective date of such registration; and 

        (f)    Notwithstanding
anything contained herein to the contrary, in connection with any registration contemplated hereunder, the Acquiror may require the Selling Holders and
the underwriters, if any, to furnish the Acquiror such information regarding the Selling Holders and the underwriters, if any, and the distribution of the Selling Holders' Registrable Securities as
the Acquiror may from time to time reasonably request. 

4

 

        6.    Holdback Agreement.    

        In
the event any registration of equity securities of the Acquiror shall be made in connection with an Underwritten Offering, upon the written request of the Acquiror and an underwriter
of Common Stock or other securities of the Acquiror, each Holder agrees not to effect any sale or distribution, including any sale pursuant to Rule 144 under the Securities Act, of any
Registrable Securities, and not to effect any such sale or distribution of any other equity security of the Acquiror or of any security convertible into or exchangeable or exercisable for any equity
security of the Acquiror (in each case, other than as part of such Underwritten Offering) during the 15 days prior to, and during the 90-day period beginning on, the effective date
of the registration statement for such Underwritten Offering; provided that the Holders have such written request at least 15 days prior to the filing date of the
Registration Statement and provided, further, that all officers and directors of the Acquiror (other than
those participating in the Underwritten Offering) also agree not to effect any such sale or distribution during such period. 

        7.    Indemnification.    

        (a)   Indemnification by the Acquiror. The Acquiror shall, notwithstanding any termination of this Agreement, indemnify and
hold harmless each Selling Holder and each of its officers, directors, agents and employees, each Person who controls the Acquiror (within the meaning of Section 15 of the Securities Act and
Section 20 of the Exchange Act), and the officers, directors, agents and employees of each such controlling Person, to the fullest extent permitted by applicable law, from and against any and
all losses, claims, damages, liabilities, costs (including, without limitation, reasonable costs of investigation and reasonable attorneys' fees and expenses) and expenses (collectively,
"Losses"), as incurred, arising out of or relating to (i) any untrue or alleged untrue statement of a material fact contained in the Registration Statement, any
Prospectus or any form of prospectus or in any amendment or supplement thereto or in any preliminary prospectus, (ii) any omission or alleged omission of a material fact required to be stated
therein or necessary to make the statements therein (in the case of any Prospectus or form of prospectus or supplement thereto, in light of the circumstances under which they were made) not misleading
or (iii) any violation or alleged violation by the Company of the Securities Act, any state securities laws or any rule or regulation thereunder applicable to the Company and relating to action
or inaction required of the Company in connection with any offering covered by such registration, qualification or compliance, except to the extent that any such untrue statement or omission is based
solely upon information regarding such Selling Holder furnished to the Acquiror in writing by such Selling Holder stated specifically for use therein. 

        (b)   Indemnification by the Selling Holders. Each Selling Holder shall, severally and not jointly, indemnify and hold harmless
the Acquiror, its officers, directors, agents and employees, each Person who controls the Acquiror (within the meaning of Section 15 of the Securities Act and Section 20 of the Exchange
Act), and the officers, directors, agents and employees of each such controlling Person, to the fullest extent permitted by applicable law, from and against all Losses as incurred, arising out of or
relating to (i) any untrue statement of a material fact contained in the Registration Statement, any Prospectus, or any form of prospectus, or in any amendment or supplement thereto or
(ii) any omission of a material fact required to be stated therein or necessary to make the statements therein (in the case of any Prospectus or form of prospectus or supplement thereto, in
light of the circumstances under which they were made) not misleading to the extent that such untrue statement or omission is contained in any information so furnished by such Selling Holder to the
Acquiror in writing specifically for inclusion in the Registration Statement, such Prospectus or such form of prospectus, or in any amendment or supplement thereto; provided, however that in no event
shall any indemnity under this Section 7(b) exceed the net proceeds from the offering received by such Holder. 

        (c)   Conduct of Indemnification Proceedings. If any Proceeding shall be brought or asserted against any Person entitled to
indemnity hereunder (an "Indemnified Party"), such Indemnified Party shall 

5

 

promptly
notify the Person from which indemnity is sought (the "Indemnifying Party") in writing, and the Indemnifying Party may assume the defense thereof, including the
employment of counsel reasonably satisfactory to the Indemnified Party and the payment of all fees and expenses incurred in connection with the defense thereof; provided
that the failure of any Indemnified Party to give such notice shall not relieve the Indemnifying Party of its obligations or liabilities pursuant to this Agreement, except to the extent that such
failure shall have proximately and adversely prejudiced the Indemnifying Party. 

        An
Indemnified Party shall have the right to employ separate counsel in any such Proceeding and to participate in the defense thereof, but the fees and expenses of such counsel shall be
at the expense of such Indemnified Party unless (1) the Indemnifying Party has agreed in writing to pay such fees and expenses, (2) the Indemnifying Party shall have failed promptly to
assume the defense of such Proceeding and to employ counsel reasonably satisfactory to such Indemnified Party in any such Proceeding or (3) the named parties to any such Proceeding (including
any impleaded parties) include both such Indemnified Party and the Indemnifying Party and such Indemnified Party shall have been advised by counsel that a conflict of interest is likely to exist if
the same counsel were to represent such Indemnified Party and the Indemnifying Party (in which case, if such Indemnified Party notifies the Indemnifying Party in writing that it elects to employ
separate counsel at the expense of the Indemnifying Party, the Indemnifying Party shall not have the right to assume the defense of the Indemnified Party and such counsel shall be at the expense of
the Indemnifying Party). The Indemnifying Party shall not be liable for any settlement of any such Proceeding effected without its written consent. No Indemnifying Party shall, without the prior
written consent of the Indemnified Party, effect any settlement of any pending Proceeding in respect of which any Indemnified Party is a party, unless such settlement (i) includes an
unconditional written release of such Indemnified Party, in form and substance reasonably satisfactory to such Indemnified Party, from all liability on claims that are the subject matter of such
Proceeding and (ii) does not include any statement as to an admission of fault, culpability or failure to act by or on behalf of such Indemnified Party. 

        (d)   If
the indemnification provided for in this Section 7 is held by a court of competent jurisdiction to be unavailable to an Indemnified Party with respect to any
loss, liability, claim, damage or expense referred to herein, then the Indemnifying Party, in lieu of indemnifying such Indemnified Party hereunder, shall contribute to the amount paid or payable by
such Indemnified Party as a result of such loss, liability, claim, damage or expense in such proportion as is appropriate to reflect the relative fault of the Indemnifying Party on the one hand and of
the Indemnified Party on the other in connection with the statements or omissions that resulted in such loss, liability, claim, damage or expense as well as any other relevant equitable
considerations. The relative fault of the Indemnifying Party and of the Indemnified Party shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a
material fact or the omission to state a material fact relates to information supplied by the Indemnifying Party or by the Indemnified Party and the parties' relative intent, knowledge, access to
information and opportunity to correct or prevent such statement or omission. 

        8.    Miscellaneous.    

        (a)   Termination. Except for Section 7 hereof, this Agreement and the rights and obligations of the Acquiror and the
Holders hereunder shall terminate on the earlier of (a) the first date on which no Registrable Securities remain outstanding or (b) such time as all of such remaining Registrable
Securities may be sold in any consecutive three-month period in accordance with Rule 144. 

        (b)   No Third-Party Beneficiaries. This Agreement shall be binding upon and inure solely to the benefit of each party hereto,
and nothing in this Agreement, express or implied, is intended to or shall confer upon any other Person any rights or remedies of any nature whatsoever under or by reason of this Agreement. 

6

 

        (c)   Entire Agreement. This Agreement (including the documents and instruments referred to herein) constitutes the entire
agreement and supersedes all other prior agreements and understandings, both written and oral, among the parties, or any of them, with respect to the subject matter hereof and shall not be assigned by
operation of law or otherwise. 

        (d)   Counterparts. This Agreement may be executed in two or more counterparts, each of which shall be deemed to be an
original, but all of which shall constitute one and the same agreement and, when executed, shall be binding on the other parties hereto. 

        (e)   Interpretation. The headings contained in this Agreement are for reference purposes only and shall not affect in any way
the meaning or interpretation of this Agreement. In this Agreement, unless a contrary intention appears (i) the words "herein", "hereof" and "hereunder" and other words of similar import refer
to this Agreement as a whole and not to any particular Article, Section or other subdivision and (ii) reference to any Article or Section means such Article or Section hereof. No provision of
this Agreement shall be interpreted or construed against any party hereto solely because such party or its legal representative drafted such provision. Neither this Agreement nor any uncertainty or
ambiguity herein shall be construed or resolved against any party, whether under any rule of construction or otherwise. No party to this Agreement shall be considered the draftsman. The parties hereto
acknowledge and agree that this Agreement has been reviewed, negotiated and accepted by all parties and their attorneys and shall be construed and interpreted according to the ordinary meaning of the
words used so as fairly to accomplish the purposes and intentions of the parties hereto. 

        (f)    Notices. All notices and other communications hereunder shall be in writing and shall be deemed given if delivered
personally, mailed by registered or certified mail (return receipt requested) or sent via facsimile to the parties at the following addresses (or at such other address for a party as shall be
specified by like notice): 

	 	If to the Acquiror:
	

 	

North American Scientific, Inc.

20200 Sunburst Street

Chatsworth, California 91311

Attention: L. Michael Cutrer, President

Facsimile: (818) 734-5837
	

 	

with a copy to:
	

 	

McDermott Will & Emery

2049 Century Park East

Suite 3400

Los Angeles, CA 90067-3208

Attention: Mark J. Mihanovic

Fax: (310) 277-4730
	

 	

If to the Holders
	

 	

	
 	

 
	 	
	 	 
	 	
	 	 
	 	Attention:	 	
	 	 
	 	Fax:	 	
	 	 
	

 	

with a copy to:
	

 	

Cohen & Grigsby

11 Stanwix Street, 15th Floor

Pittsburgh, PA 15222

Attention: Mark Baseman, Esq.

Fax: (412) 209-0672

7

 

        (g)   Governing Law. THIS AGREEMENT SHALL BE GOVERNED IN ALL RESPECTS, INCLUDING VALIDITY, INTERPRETATION AND EFFECT, BY THE
LAWS OF THE STATE OF DELAWARE APPLICABLE TO CONTRACTS EXECUTED AND TO BE PERFORMED WHOLLY WITHIN SUCH STATE. 

        (h)   Amendments and Waivers. No amendment of any provision of this Agreement shall be valid unless such amendment shall be in
writing and signed by the Acquiror and the Holders of not less than 662/3% of the Registrable Securities then outstanding. No waiver by any party hereto of any default,
misrepresentation or breach of warranty or covenant hereunder, whether intentional or not, shall be deemed to extend to any prior or subsequent default, misrepresentation or breach of warranty or
covenant hereunder or affect in any way any rights arising by virtue of any prior or subsequent such occurrence. 

        (i)    Severability. Any term or provision of this Agreement which is invalid or unenforceable in any jurisdiction shall, as to
that jurisdiction, be ineffective to the extent of such invalidity or unenforceability without rendering invalid or unenforceable the remaining terms and provisions of this Agreement or affecting the
validity or enforceability of any of the terms or provisions of this Agreement in any other jurisdiction. If any provision of this Agreement is so broad as to be unenforceable, the provision shall be
interpreted to be only so broad as is enforceable. 

        (j)    Expenses. Except as provided in Section 4 above, each of the parties hereto shall bear such party's own costs and
expenses (including legal fees and expenses) incurred in connection with this Agreement. 

(k)  Construction. (i) Any reference to any federal, state, local or foreign statute or law shall be deemed also to refer to all
rules and regulations promulgated thereunder, unless the context requires otherwise. The parties hereto intend that each representation, warranty and covenant contained herein shall have independent
significance. If any party hereto has breached any representation, warranty or covenant relating to the same subject matter as any other representation, warranty or covenant (regardless of the
relative levels of specificity) which the party has not breached, it shall not detract from or mitigate the fact that the party is in breach of the first representation, warranty or covenant. 

        (ii)   Any
of the defined terms in this Agreement, unless the context otherwise requires, may be used in the singular or the plural, depending on the reference. In this
Agreement, unless clearly indicated otherwise, references to dollar amounts are to the lawful money of the United States of America. 

        (l)    Equitable Relief. The parties hereto agree that the remedies at law for any breach of the terms of this Agreement are
inadequate. Accordingly, the parties hereto consent and agree that an injunction may be issued to restrain any breach or alleged breach of such provisions. The parties hereto agree that terms of this
Agreement shall be enforceable by a decree of specific performance. Such remedies shall be cumulative and not exclusive, and shall be in addition to any other remedies which the parties may have at
law or in equity. 

        (m)  Recapitalizations, Etc. In the event that any capital stock or other securities are issued in respect of, in exchange
for, or in substitution of, any Registrable Securities by reason of any reorganization, recapitalization, reclassification, merger, consolidation, spin-off, partial or complete
liquidation, stock dividend, split-up, sale of assets, distribution to stockholders or combination of the Registrable Securities or any other change in the Acquiror's capital structure,
appropriate adjustments shall be made in this Agreement so as to fairly and equitably preserve, to the extent practicable, the original rights and obligations of the parties hereto under this
Agreement. 

        (n)   Waiver of Jury Trial. EACH PARTY HERETO HEREBY IRREVOCABLY WAIVES ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR
COUNTERCLAIM 

8

 

(WHETHER
BASED ON CONTRACT, TORT OR OTHERWISE) ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE ACTIONS OF THE PARTIES HERETO IN THE NEGOTIATION, ADMINISTRATION, PERFORMANCE AND ENFORCEMENT HEREOF. 

SIGNATURES
FOLLOW 

9

 

        IN
WITNESS WHEREOF, the parties hereto have executed this Agreement as of the date first above written. 

	 	 	NORTH AMERICAN SCIENTIFIC, INC.

	

 	
 	

By:	

 Name:

Title:
	

 	
 	

Holders:
	

 	
 	

 John Friede
	

 	
 	

 Corporate Opportunities Fund, L.P.
	

 	
 	

 Corporate Opportunities Fund (Institutional), L.P.
	

 	
 	

 Cross Atlantic Partners
	

 	
 	

 Cross Atlantic Partners II
	

 	
 	

 Cross Atlantic Partners III
	

 	
 	

 Cross Atlantic Partners IV
	

 	
 	

 A. Carey Zesiger
	

 	
 	

 Alexa L. Zesiger
	

 	
 	

 Albert L. Zesiger
	

 	
 	

 Barrie Ramsay Zesiger
	

 	
 	

 Nicola L. Zesiger

10

QuickLinks

Exhibit 10.4QuickLinks
 -- Click here to rapidly navigate through this document

 
 

Exhibit 10.5    
    

 
 

Affiliate Letter    
    

[DATE]

North
American Scientific, Inc.

20200 Sunburst Avenue

Chatsworth, California 91311 

Ladies
and Gentlemen: 

        The
undersigned has been advised that, as of the date of this letter agreement, the undersigned may be deemed to be an "affiliate" of NOMOS Corporation, a Delaware corporation (the
"Company"), as the term "affiliate" is defined for purposes of paragraphs (c) and (d) of Rule 145 of the Rules and Regulations (the
"Rules and Regulations") of the Securities and Exchange Commission (the "Commission") promulgated under the Securities Act of 1933, as amended
(the "Securities Act"). Pursuant to the terms of the Agreement and Plan of Merger, dated as of October 26, 2003 (the "Merger
Agreement"), among the Company, North American Scientific, Inc., a Delaware corporation ("Acquiror") and AM Capital I, Inc., a Delaware
corporation and wholly-owned subsidiary of Acquiror ("Merger Sub"), the Company will merge with and into the Merger Sub (the "Merger"). All
capitalized terms used but not defined herein shall be used herein as defined in the Merger Agreement. 

        As
a result of the Merger, the undersigned will receive Common Stock, par value $0.01 per share, of Acquiror (the "Acquiror Common Stock") in exchange for
the undersigned's shares of Common Stock, par value $0.0001 per share, of the Company (the "Company Common Stock"), Series A Preferred Stock, par value $0.0001 per
share, of the Company, Series B Preferred Stock, par value $0.0001 per
share, of the Company and Series C Preferred Stock, par value $0.0001 per share, of the Company (the Series A Preferred Stock, Series B Preferred Stock and Series C
Preferred Stock of the Company referred to herein, collectively, as the "Company Preferred Stock"). In connection therewith, the undersigned represents, warrants and
covenants to Acquiror as follows: 

        1.     The
undersigned will not make any sale, transfer, encumbrance, pledge or other disposition of any Acquiror Common Stock the undersigned receives in the Merger in
violation of the Securities Act, the Rules and Regulations or the terms of this letter agreement. 

        2.     The
undersigned has carefully read this letter agreement and the Merger Agreement and discussed with counsel, to the extent the undersigned felt necessary, the
requirements of this letter agreement and the Merger Agreement and other applicable limitations upon the undersigned's ability to sell, transfer, encumber, pledge or otherwise dispose of the Acquiror
Common Stock. 

        3.     The
undersigned has been advised that the issuance of Acquiror Common Stock to the undersigned in connection with the Merger will be registered with the Commission
pursuant to an effective registration statement on Form S-4. The undersigned has also been advised that, because the undersigned may be deemed to be an affiliate of the Company at
the time the Merger is submitted for a vote of the stockholders of the Company, the undersigned may not sell, transfer, encumber, pledge or otherwise dispose of any Acquiror Common Stock issued to the
undersigned pursuant to the Merger unless (i) such sale, transfer or other disposition has been registered under the Securities Act, (ii) such sale, transfer or other disposition is made
in conformity with Rule 145 under the Securities Act, (iii) in the written opinion of counsel reasonably acceptable to Acquiror, such sale, transfer or other disposition is exempt from
registration under the Securities Act, (iv) such sale, transfer or other disposition is made to a trust that is an "accredited investor" as such term is defined in Rule 501 promulgated
under the Securities Act in a transaction that is exempt from registration under the Securities Act pursuant to the so-called Section 4(11/2) exemption or
(v) an authorized representative of the Commission takes a position in writing to the effect that the Commission would take no action, or that the staff of the Commission would not recommend
that the Commission take action, with respect 

 

to
such sale, transfer, encumbrance, pledge or other disposition and a copy of such written position is delivered to Acquiror. 

        4.     I
also understand that stop transfer instructions may be given to Acquiror's transfer agent with respect to the Acquiror Common Stock to be issued to me and that there
will be placed on the certificates evidencing the Acquiror Common Stock to be issued to me (as well as all securities of Acquiror issued as a stock dividend or distribution and any shares or other
securities into which or for which any or all of the Acquiror Common Stock may be changed or exchanged in a split-up, recapitalization, combination, exchange of shares or similar action or
transaction) a legend stating in substance: 

"The
shares evidenced by this certificate were issued in a transaction to which Rule 145 promulgated under the Securities Act of 1933, as amended, applies. The shares evidenced by this
certificate may only be transferred in accordance with the terms of a letter agreement, dated                , 2003, between the registered holder hereof and
[Acquiror], a copy of which agreement is on file at the principal offices of [Acquiror]." 

        The
legend set forth above shall be removed (by delivery of a substitute certificate without such legend) if the affiliate delivers to Acquiror (i) written evidence satisfactory
to Acquiror that the shares will be sold in compliance with Rule 145 (in which case, the substitute certificate shall be issued in the name of the transferee) or (ii) an opinion of
counsel, in form and substance reasonably satisfactory to Acquiror, to the effect that public sale of the shares by the holder thereof is no longer subject to Rule 145 and is exempt from
registration under the Securities Act. 

        5.     This
letter agreement shall be terminated, and be of no further force and effect, automatically upon the termination of the Merger Agreement if the Merger Agreement
terminates without the Merger becoming effective. 

2

 

        The
undersigned's execution of this letter agreement should not be considered to be an admission on the undersigned's part that the undersigned is an "affiliate" of the Company as
described in the first paragraph of this letter agreement or to be a waiver of any rights the undersigned may have to object to any claim that the undersigned is such an affiliate on or after the date
of this letter agreement. 

	 	 	Very truly yours,
	

 	
 	

Name:	
 	

	

 	
 	

Signature:	
 	

	

 	
 	

 	
 	

Name, if applicable:	
 	

	

 	
 	

 	
 	

Title, if applicable:	
 	

Agreed
to and accepted this

            day of October, 2003 

DODGERS

	

By:	
 	

 Name:

Title:

3

QuickLinks

Exhibit 10.5

Affiliate Letter

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00058-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00058-of-00352.parquet"}]]