**EXHIBIT 3**

**IONATRON, INC.**

**AMENDED AND RESTATED BY-LAWS**

**ARTICLE I**

OFFICES 

1. The location of the registered office of the Corporation is 2711 Centerville Road, Suite 400, in the City of Wilmington, County of New Castle, Delaware 19808, and the name of its registered agent at such address is Corporation ServiceCompany. 

2. The Corporation shall in addition to its registered office in the State of Delaware establish and maintain an office oroffices at such place or places as the Board of Directors may from time to time find necessary or desirable. 

**ARTICLE II**

CORPORATE SEAL 

The corporate seal of the Corporation shall haveinscribed thereon the name of the Corporation and may be in such form as the Board of Directors may determine. Such seal may be used by causing it or a facsimile thereof to be impressed, affixed or otherwise reproduced. 

**ARTICLE III**

MEETINGS OF STOCKHOLDERS 

1. All meetings of the stockholders shall be held at the registered office of the Corporation in the State of Delaware or at such other place asshall be determined from time to time by the Board of Directors. 

2. The annual meeting of stockholders shall be held on such day and at such time as may bedetermined from time to time by resolution of the Board of Directors, when they shall elect by plurality vote, a Board of Directors to hold office until the annual meeting of stockholders held next after their election and their successors arerespectively elected and qualified or until their earlier resignation or removal. Any other proper business may be transacted at the annual meeting. 

3. The holders of a majority of the stock issued and outstanding and entitled to vote thereat, present in person or represented by proxy, shall constitute a quorum at all meetings of the stockholders for the transaction ofbusiness, except as otherwise expressly provided by statute, by the Certificate of Incorporation or by these By-laws. 

4. At allmeetings of the stockholders each stockholder having the right to vote shall be entitled to vote in person, or by proxy appointed by an instrument in writing subscribed by such stockholder and bearing a date not more than three years prior to saidmeeting, unless such instrument provides for a longer period. 

5. At each meeting of the stockholders each stockholder shall have onevote for each share of capital stock having voting power, registered in his name on the books of the Corporation at the record date fixed in accordance with these By-laws, or otherwise determined, with respect to such meeting. Except as otherwiseexpressly provided by statute, by the Certificate of Incorporation or by these By-laws, all matters coming before any meeting of the stockholders shall be decided by the vote of a majority of the number of shares of stock present in person orrepresented by proxy at such meeting and entitled to vote thereat, a quorum being present. 

6. Notice of each meeting of thestockholders shall be mailed to each stockholder entitled to vote thereat not less than 10 nor more than 60 days before the date of the 

 

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meeting. Such notice shall state the place, date and hour of the meeting and, in the case of a special meeting, the purposes for which the meeting is called.

7. Special meetings of the stockholders, for any purpose or purposes, unless otherwise prescribed by statute, may be called by theBoard of Directors. 

8. At any annual or special meeting of the stockholders, only such business shall be conducted as shall havebeen brought before the meeting (i) pursuant to the Corporation’s notice of meeting, (ii) by or at the direction of the Board of Directors, or (iii) by any stockholder who complies with the procedures set forth in this ArticleIII Section 8. 

The only business which shall be conducted at any meeting of the stockholders shall (i) have been specifiedin the written notice of the meeting (or any supplement thereto) given as provided in Article III Section 6, (ii) be brought before the meeting at the direction of the Board of Directors or the chairman of the meeting or (iii) havespecified in a written notice (a “Stockholder Meeting Notice”) given to the Corporation, in accordance with all of the following requirements, by or on behalf of any stockholder who shall have been a stockholder of record on the recorddate for such meeting and who shall continue to be entitled to vote there at. Each Stockholder Meeting Notice must be delivered personally to, or be mailed to and received by, the Secretary of the Corporation, at the principal executive offices ofthe Corporation, not less than 50 days nor more than 75 days prior to the meeting; provided, however, that in the event that less than 65 days’ notice or prior public disclosure of the date of the meeting is given or made to stockholders,notice by the shareholder to be timely must be received not later than the close of business on the tenth day following the earlier of (i) day on which such notice of the date of the meeting was mailed or (ii) such public disclosure wasmade. Each Stockholder Meeting Notice to the Secretary shall set forth as to each matter the stockholder proposes to bring before the 

 

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meeting: (i) a description of each item of business proposed to be brought before the meeting and the reasons for conducting such business at the meeting;(ii) the name and address, as they appear on the Corporation’s books, of the shareholder proposing to bring such item of business before the meeting; (iii) the class and number of shares of stock held of record, owned beneficially andrepresented by proxy by such stockholder as of the record date for the meeting (if such date then shall have been made publicly available) and as of the date of such Stockholder Meeting Notice; and (iv) all other information which would berequired to be included in a proxy statement filed with the Securities and Exchange Commission (the “Commission”) if, with respect to any such item of business, such stockholder were a participant in a solicitation subject toSection 14 of the Securities Exchange Act of 1934. 

Any proposal by stockholders which has not previously received the approvalof the Board of Directors shall require for its adoption the affirmative vote of holders of more than fifty percent (50%) of the votes which all stockholders are entitled to cast thereon, in addition to any other approval which is required bylaw, the Certificate of Incorporation, these By-laws or otherwise. 

Notwithstanding anything in these By-laws to the contrary, nobusiness shall be conducted at any meeting of the stockholders except in accordance with the procedures set forth in these By-laws. The Chairman of the meeting shall, if the facts warrant, determine and declare to the meeting that business was notproperly brought before the meeting and in accordance with the procedures prescribed by these By-laws, and if he or she should so determine, he or she shall so declare to the meeting and any such business not properly brought before the meetingshall not be transacted. 

 

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9. When a meeting is adjourned to another time or place, notice of the adjourned meeting need notbe given if the time and place thereof are announced at the meeting at which the adjournment is taken, unless the adjournment is for more than 30 days, or unless after the adjournment a new record date is fixed for the adjourned meeting, in whichcase notice of the adjourned meeting shall be given to each stockholder of record entitled to vote at the meeting. At the adjourned meeting, any business may be transacted that might have been transacted at the original meeting. 

10. The order of business at each meeting of stockholders shall be determined by the presiding officer. 

**ARTICLE IV**

DIRECTORS 

1. The business and affairs of the Corporation shall be managed under the direction of a Board of Directors, which may exercise all such powers andauthority for and on behalf of the Corporation as shall be permitted by law, the Certificate of Incorporation or these By-laws. 

2.The Board of Directors may hold their meetings within or outside of the State of Delaware, at such place or places as it may from time to time determine. 

3. The number of directors comprising the Board of Directors shall be such number as may be from time to time fixed by resolution of the Board of Directors. If the number of directors is changed, any increase or decrease shallbe apportioned among the classes so as to maintain the number of directors in each class as nearly equal as possible, and any additional director of any class elected to fill a vacancy resulting from an increase in such class shall hold office for aterm that shall coincide with the remaining term of that class, but in no case will a decrease in the number of directors shorten the term of any incumbent director. A director shall 

 

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hold office until the annual meeting for the year in which his term expires and until the successor shall be elected and shall qualify, subject, however to priordeath, resignation, retirement, disqualification or removal from office. Any vacancy occurring in the Board of Directors, including any vacancy created by reason of an increase in the number of directors, shall be filled for the unexpired term bythe concurring vote of a majority of the directors then in office, whether or not a quorum, and any director so chosen shall hold office for the remainder of the full term of the class of directors in which the new directorship was created or thevacancy occurred and until such director’s successor shall have been elected and qualified. 

4. Subject to the rights of theholders of any class or series of stock having a preference over the Common Stock as to dividends or upon liquidation, nominations for the election of directors at which directors are elected may be made by the Board of Directors or a committeeappointed by the Board of Directors or any stockholder entitled to vote in the election of directors. However, any stockholder entitled to vote in the election of directors may nominate one or more persons for election as directors at a meeting onlyif written notice of such stockholder’s intent to make such nomination or nominations has been delivered personally to, or been mailed to and received by the Secretary of the Corporation at, the principal executive offices of the Corporation,not less than 50 days nor more than 75 days prior to the meeting; provided, however, that, in the event that less than 65 days’ notice or prior public disclosure of the date of the meeting is given or made to stockholders, notice by thestockholder to be timely must be so received not later than the close of business on the tenth day following the day on which such notice of the date of the meeting was mailed or such public disclosure was made. Each such notice shall set forth:(i) the name and address of the stockholder, as they appear on the Corporation’s books, who intends to make the nomination and of the person or persons to be nominated; (ii) the class and number of shares of 

 

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stock held of record, owned beneficially and represented by proxy by such stockholder as of the record date for the meeting (if such date shall then have been madepublicly available) and of the date of such notice; (iii) a representation that the stockholder intends to appear in person or by proxy at the meeting to nominate the person or persons specified in the notice; (iv) a description of allarrangements or understandings between such shareholder and each nominee and any other person or persons (naming such person or persons) pursuant to which the nomination or nominations are to be made by such stockholder; (v) such otherinformation regarding each nominee proposed by such stockholder as would be required to be included in a proxy statement filed pursuant to the proxy rules of the Commission, had each nominee been nominated, or intended to be nominated by the Boardof Directors; and (vi) the consent of each nominee to serve as a director of the corporation if so elected. 

5. Any director mayresign at any time by giving written notice of his resignation to the Board of Directors. Any such resignation shall take effect upon receipt thereof by the Board, or at such later date as may be specified therein. Any such notice to the Board shallbe addressed to it in care of the Secretary. 

**ARTICLE V**

COMMITTEES OF DIRECTORS 

1. The Board may designate an Executive Committee and one or more other committees, each suchcommittee to consist of one or more directors of the Corporation. The Executive Committee shall have and may exercise all the powers and authority of the Board in the management of the business and affairs of the Corporation (except as otherwiseexpressly limited by statute), including the power and authority to declare dividends and to authorize the issuance of stock, and may authorize the seal of the corporation to be affixed to all papers which may require it. Each such committee shallhave such of the powers and authority of the Board (except as otherwise 

 

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expressly limited by statute) as may be provided from time to time in resolutions adopted by a majority of the whole Board. 

2. The requirements with respect to the manner in which the Executive Committee and each such other committee shall hold meetings and take actionsshall be set forth in the resolutions of the Board of Directors designating the Executive Committee or such other committee. 

**ARTICLE VI**

COMPENSATION OF DIRECTORS 

The directorsshall receive such compensation for their services as may be authorized by resolution of the Board of Directors, which compensation may include an annual fee and a fixed sum for expense of attendance at regular or special meetings of the Board orany committee thereof. Nothing herein contained shall be construed to preclude any director from serving the Corporation in any other capacity and receiving compensation therefor. 

**ARTICLE VII**

MEETINGS OF DIRECTORS; ACTION WITHOUT A MEETING 

1. Regular meetings of the Board of Directors may be held without notice at such time and place, either within or without the State of Delaware, asmay be determined from time to time by resolution of the Board. 

2. Special meetings of the Board of Directors shall be held whenevercalled by the Chairman, the President of the Corporation or the Board of Directors on at least 24 hours’ notice to each director. Except as may be otherwise specifically provided by statute, by the Certificate of Incorporation or by theseBy-laws, the purpose or purposes of any such special meeting need not be stated in such notice, although the time and place of the meeting shall be stated. 

 

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3. At all meetings of the Board of Directors, the presence in person of a majority of the totalnumber of directors shall be necessary and sufficient to constitute a quorum for the transaction of business, and, except as otherwise provided by statute, by the Certificate of Incorporation or by these By-laws, if a quorum shall be present the actof a majority of the directors present shall be the act of the Board. 

4. Any action required or permitted to be taken at any meetingof the Board of Directors or of any committee thereof may be taken without a meeting if all the members of the Board or such committee, as the case may be, consent thereto in writing and the writing or writings are filed with the minutes ofproceedings of the Board of committee. Any director may participate in a meeting of the Board, or any committee designated by the Board, by means of a conference telephone or similar communications equipment by means of which all personsparticipating in the meeting can hear each other, and participation in a meeting pursuant to this sentence shall constitute presence in person at such meeting. 

**ARTICLE VIII**

OFFICERS 

1. The officers of the Corporation shall be chosen by the Board of Directors and shall be a Chief Executive Officer, a President, a Chief Financial Officer, one or more Vice Presidents, a Secretary and a Treasurer. The Board may also chooseone or more Assistant Secretaries and Assistant Treasurers, and such other officers as it shall deem necessary. Any number of offices may be held by the same person. 

2. The salaries of all officers of the Corporation shall be fixed by the Board of Directors, or in such manner as the Board may prescribe. 

3. The officers of the Corporation shall hold office until their successors are elected and qualified, or until their earlier resignation orremoval. Any officer may be at any time 

 

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removed from office by the Board of Directors, with or without cause. If the office of any officer becomes vacant for any reason, the vacancy may be filled by theBoard of Directors. 

4. Any officer may resign at any time by giving written notice of his resignation to the Board of Directors. Anysuch resignation shall take effect upon receipt thereof by the Board or at such later date as may be specified therein. Any such notice to the Board shall be addressed to it in care of the Secretary. 

**ARTICLE IX**

THE CHIEF EXECUTIVE OFFICER 

The Chief Executive Officer shall have general supervision and direction of the business and affairs of the Corporation, subject, however, to thedirection and control of the Board. The Chief Executive Officer may sign and execute in the name of the Corporation deeds, mortgages, bond, contracts or other instruments. He shall perform all duties incident to the office of the Chief ExecutiveOfficer and shall, when requested, counsel with and advise the other officers of the Corporation and shall perform such other duties as the Board of Directors may from time to time determine. 

**ARTICLE X**

THE PRESIDENT 

The President shall have general and active supervision and direction over the day to day business operations and affairs of the Corporation and over its several officers, agents and employees, subject,however, to the direction and control of the Board. The President may sign and execute in the name of the Corporation deeds, mortgages, bond, contracts or other instruments. He shall perform all duties incident to the office of the President andshall, when requested, counsel with and advise the other officers of the Corporation and shall perform such other duties as the Board of Directors may from time to time determine. 

 

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**ARTICLE XI**

CHIEFFINANCIAL OFFICER AND TREASURER 

The Chief Financial Officer shall have the custody of the corporate funds and securities, and shalldeposit or cause to be deposited under his direction all moneys and other valuable effects in the name and to the credit of the Corporation in such depositories as may be designated by the Board of Directors or pursuant to authority granted by it.He shall render to the Board of Directors, the Chief Executive Officer, and the President whenever they may require it an account of all his transactions as Chief Financial Officer. He shall have such other powers and duties as may be delegated tohim by the Board of Directors, the Chief Executive Officer, or the President. 

The Treasurer shall, in case of the absence of theChief Financial Officer, perform the duties and exercise the powers of the Chief Financial Officer, and shall have such other powers and duties as may be delegated to him by the Board of Directors, the Chief Executive Officer, the Chief OperatingOfficer, the President or the Chief Financial Officer. 

**ARTICLE XII**

VICE PRESIDENTS 

The Vice Presidents shall have such powers and duties as may be delegated to them by the Board of Directors,the Chairman, the Chief Executive Officer or the President. 

**ARTICLE XIII**

SECRETARY AND ASSISTANT SECRETARY 

1. The Secretary shall attend all meetings of the Board of Directors and ofthe stockholders, and shall record the minutes of all proceedings in a book to be kept for that purpose. He shall perform like duties for the committees of the Board when required. 

 

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2. The Secretary shall give, or cause to be given, notice of meetings of the stockholders, of theBoard of Directors and of the committees of the Board. He shall keep in safe custody the seal of the Corporation, and when authorized by the Chairman, the Chief Executive Officer or the President, shall affix the same to any instrument requiring it,and when so affixed it shall be attested by his signature or by the signature of an Assistant Secretary. He shall have such other powers and duties as may be delegated to him by the Chairman, the Chief Executive Officer or the President. 

3. The Assistant Secretary shall, in case of the absence of the Secretary, perform the duties and exercise the powers of the Secretary, andshall have such other powers and duties as may be delegated to them by the Chairman, the Chief Executive Officer or the President. 

**ARTICLE XIV**

CERTIFICATES OF STOCK 

The certificates ofstock of the Corporation shall be numbered and shall be entered in the books of the Corporation as they are issued. They shall exhibit the holder’s name and number of shares and shall be signed by the Chairman or the President or a VicePresident, and by the Treasurer or the Secretary or an Assistant Secretary. 

**ARTICLE XV**

CHECKS 

All checks, drafts and other orders for the payment ofmoney and all promissory notes and other evidences of indebtedness of the Corporation shall be signed by such officer or officers or such other person as may be designated by the Board of Directors or pursuant to authority granted by it. 

 

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**ARTICLE XVI**

FISCAL YEAR

The fiscal year of the Corporation shall be as determined from time to time by resolution duly adopted by the Board of Directors.

**ARTICLE XVII**

NOTICES AND WAIVERS 

1. Whenever by statute, by the Certificate of Incorporation or by these By-laws it is provided that notice shall be given to any director orstockholder, such provision shall not be construed to require personal notice, but such notice may be given in writing, by mail, by depositing the same in the United States mail, postage prepaid, directed to such stockholder or director at hisaddress as it appears on the records of the Corporation, and such notice shall be deemed to be given at the time when the same shall be thus deposited. Notice of regular or special meetings of the Board of Directors may also be given to any directorby telephone, facsimile transmission or electronic transmission. For purposes of this Article XVII “electronic transmission” means any form of communication, not directly involving the physical transmission of paper, that creates a recordthat may be retained, retrieved and reviewed by a recipient thereof, and that may be directly reproduced in paper form by such a recipient through an automated process. 

2. Whenever by statute, by the Certificate of Incorporation or by these By-laws a notice is required to be given, a written waiver thereof, signed by the person entitled to notice, whether before or afterthe time stated therein, shall be deemed equivalent to notice. Attendance of any stockholder or director at any meeting thereof shall constitute a waiver of notice of such meeting by such stockholder or director, as the case may be, except asotherwise provided by statute. 

 

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**ARTICLE XVIII**

INDEMNIFICATION 

1. All persons who the Corporation is empowered to indemnify pursuant to the provisions of Section 145of the GCL (or any similar provision or provisions of applicable law at the time in effect) shall be indemnified by the Corporation to the full extent permitted thereby. The foregoing right of indemnification shall not be deemed to be exclusive ofany other such rights to which those seeking indemnification from the Corporation may be entitled, including, but not limited to, any rights of indemnification to which they may be entitled pursuant to any agreement, insurance policy, other by-lawor charter provision, vote of stockholders or directors, or otherwise. No repeal or amendment of this Article shall adversely affect any rights of any person pursuant to this Article which existed at the time of such repeal or amendment with respectto acts or omissions occurring prior to such repeal or amendment. 

2. For purposes of this Section, references to “theCorporation” shall include, in addition to the Corporation, any constituent corporation (including any constituent of a constituent) absorbed in a consolidation or merger which, if its separate existence had continued, would have had power andauthority to indemnify its directors, officers, and employees or agents, so that any person who is or was a director, officer, employee or agent of such constituent corporation, or is or was serving at the request of such constituent corporation asa director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise, shall stand in the same position under the provisions of this Article XIX with respect to the resulting or surviving corporation ashe would have with respect to such constituent corporation if its separate existence had continued. 

3. For purposes of this section,references to “other enterprises” shall include employee benefit plans; references to “fines” shall include any excise taxes assessed on a person 

 

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with respect to any employee benefit plans; and references to “serving at the request of the Corporation” shall include any service as a director, officer,employee or agent of the Corporation which imposes duties on, or involves services by, such director, officer, employee or agent with respect to an employee benefit plan, its participants or beneficiaries; and a person who acted in good faith and ina manner he reasonably believed to be in the best interest of the participants and beneficiaries of an employee benefit plan shall be deemed to have acted in a manner “not opposed to the best interests of the Corporation” as referred to inthis Article XIX. 

4. No repeal or amendment of this Article shall adversely affect any rights of any person pursuant to this Articlewhich existed at the time of such repeal or amendment with respect to acts or omissions occurring prior to such repeal or amendment. 

**ARTICLE XIX**

ALTERATION OF BY-LAWS 

The By-laws of theCorporation may be altered, amended or repealed, and new By-laws may be adopted, by the stockholders or by the Board of Directors. 

 

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