Exhibit 3.1

AMENDED AND RESTATED CERTIFICATE OF INCORPORATION

OF

VAREX IMAGING CORPORATION

Varex Imaging Corporation, a corporation organized and existing under the laws of the State of Delaware (the “Corporation”), does hereby certify as follows:

ARTICLE I.

The name of this corporation is Varex Imaging Corporation (the “Corporation”).

ARTICLE II.

The registered office of the Corporation in the State of Delaware is c/o the Corporation Service Company, 2711 Centreville Road, Suite 400, Wilmington, County of New Castle, State of Delaware, 19808. The name of the registered agent of the Corporation in the State of Delaware at such address is the Corporation Service Company.

ARTICLE III.

The purpose of the Corporation shall be to engage in any lawful act or activity for which corporations may be organized and incorporated under the General Corporation Law of the State of Delaware (the “DGCL”).

ARTICLE IV.

Section 1.    Authorized Stock. The Corporation shall be authorized to issue two classes of stock to be designated, respectively, “Common Stock” and “Preferred Stock.” The total number of shares of stock which the Corporation shall have authority to issue shall be 170,000,000. The

total number of shares of Common Stock which the Corporation shall have authority to issue shall be 20,000,000, par value $0.01 per share. The total number of shares of Preferred Stock which the Corporation shall have authority to issue shall be 150,000,000, par value $0.01 per share.

Section 2.    Common Stock. Except as may otherwise be provided in this Amended and Restated Certificate of Incorporation, in a Preferred Stock Designation (as hereinafter defined), or as required by law, the holders of outstanding shares of Common Stock shall have the right to vote on all questions to the exclusion of all other stockholders, each holder of record of Common Stock being entitled to one vote for each share of Common Stock standing in the name of the stockholder on the books of the Corporation.

Section 3.    Preferred Stock. Shares of Preferred Stock may be issued from time to time in one or more series. The Board of Directors of the Corporation (the “Board of Directors”) (or any committee to which it may duly delegate the authority granted in this Article IV) is hereby empowered to authorize the issuance from time to time of shares of Preferred Stock in one or more series, for such consideration and for such corporate purposes as the Board of Directors (or such committee thereof) may from time to time determine, and by filing a certificate (hereinafter referred to as a “Preferred Stock Designation”) pursuant to applicable law of the State of Delaware as it presently exists or may hereafter be amended to establish from time to time for each such series the number of shares to be included in each such series and to fix the designations, powers, rights and preferences of the shares of each such series, and the qualifications, limitations and restrictions thereof to the fullest extent now or hereafter permitted by this Amended and Restated Certificate of Incorporation and the laws of the State of Delaware, including, without limitation, voting rights (if any), dividend rights, dissolution rights, conversion rights, exchange rights and redemption rights thereof, as shall be stated and expressed in a resolution or resolutions adopted by the Board of Directors (or such committee thereof) providing for the issuance of such series of Preferred Stock. Each series of Preferred Stock shall be distinctly designated. The authority of the Board of Directors with respect to each series of Preferred Stock shall include, but not be limited to, determination of the following:

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ARTICLE V.

Section 1.    Board of Directors.

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Section 2.    Removal of Directors. Subject to the rights of the holders of any series of Preferred Stock with respect to such series of Preferred Stock, any director, or the entire Board, may be removed from office at any time, but only for cause, and only by the affirmative vote of the holders of at least a majority of the voting power of all of the then-outstanding shares of the capital stock of the Corporation entitled to vote generally in the election of directors, voting together as a single class. If one or more directors are so removed, new director(s) may be elected at the same meeting. Notwithstanding the foregoing, whenever holders of outstanding shares of one or more series of Preferred Stock are entitled to elect directors of the Corporation pursuant to the provisions applicable in the case of arrearages in the payment of dividends or other defaults contained in the resolution or resolutions of the Board providing for the establishment of any such series, any such director of the Corporation so elected may be removed in accordance with the provisions of such resolution or resolutions.

Section 3.    In furtherance, and not in limitation, of the powers conferred by statute:

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ARTICLE VI.

Unless the Corporation consents in writing to the selection of an alternative forum, to the fullest extent permitted by law, the sole and exclusive forum for any stockholder (including any beneficial owner) to bring: (a) any derivative action or proceeding brought on behalf of the Corporation, (b) any action asserting a claim of breach of a fiduciary duty owed by any director, officer or employee of the Corporation to the Corporation or the Corporation’s stockholders, (c) any action asserting a claim arising pursuant to any provisions of the DGCL or this Amended and Restated Certificate of Incorporation or the Bylaws of the Corporation (as either may be amended from time to time), or (d) any action asserting a claim governed by the internal affairs doctrine shall be the Court of Chancery of the State of Delaware (provided, that, if and only if the Court of Chancery of the State of Delaware dismisses any such action for lack of subject matter jurisdiction, such action may be brought in another court sitting in the State of Delaware). Any person or entity purchasing or otherwise acquiring any interest in shares of stock of the Corporation shall be deemed to have notice of and consented to the provisions of this Article VI.

If any provision of this Article VI shall be held to be invalid, illegal or unenforceable as applied to any person or entity or circumstance for any reason whatsoever, then, to the fullest extent permitted by law, the validity, legality and enforceability of such provision in any other circumstance and of the remaining provisions of this Article VI (including, without limitation, each portion of any sentence of this Article VI containing any such provision held to be invalid, illegal or unenforceable that is not itself held to be invalid, illegal or unenforceable) and the application of such provision to other persons or entities and circumstances shall not in any way be affected or impaired thereby.

ARTICLE VII.

Meetings of stockholders may be held outside the State of Delaware, if the Bylaws so provide. The books of the Corporation may be kept (subject to any provision of law) outside the State of Delaware. Elections of directors need not be by ballot unless the Bylaws of this corporation shall so provide.

ARTICLE VIII.

To the fullest extent permitted by the DGCL, as the same exists or may hereafter be amended, a director of the Corporation shall not be personally liable either to the Corporation or to any of its stockholders for monetary damages for breach of fiduciary duty as a director. Any amendment or modification or repeal of the foregoing sentence shall not adversely affect any

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right or protection of a director of the Corporation hereunder in respect of any act or omission occurring prior to the time of such amendment, modification or repeal. If the DGCL hereafter is amended to further eliminate or limit the liability of a director, then a director of the Corporation, in addition to the circumstances in which a director is not personally liable as set forth in the preceding sentence, shall not be liable to the fullest extent permitted by the amended DGCL.

ARTICLE IX.

Section 1.    Stockholder Action by Written Consent. Subject to the rights of the holders of any series of Preferred Stock with respect to such series of Preferred Stock, and effective as of the time at which Varian Medical Systems, Inc., a Delaware corporation, shall cease to be the beneficial owner of at least a majority of the then outstanding shares of Common Stock, any action required or permitted to be taken by the stockholders of the Corporation must be effected at a duly called annual or special meeting of stockholders and may not be effected by any consent in writing by such stockholders.

Section 2.    Meetings of Stockholders. Subject to the rights of the holders of any series of Preferred Stock with respect to such series of Preferred Stock, special meetings of stockholders may be called only by (a) the Board of Directors pursuant to a resolution adopted by a majority of the Whole Board, or (b) the Chairman of the Board of Directors with the concurrence of the majority of the Board of Directors, and any power of stockholders to call a special meeting is specifically denied. At any annual or special meeting of the stockholders, only such business shall be conducted or considered as shall have been properly brought before the meeting pursuant to the Corporation’s notice of meeting as specified in the Bylaws.

Section 3.    No Cumulative Voting. Stockholders of the Corporation shall not be entitled to cumulative voting in elections of directors of this Corporation.

ARTICLE X.

In furtherance and not in limitation of the powers conferred by the laws of the State of Delaware as they presently exist or may hereafter be amended, subject to any limitations contained elsewhere in this Amended and Restated Certificate of Incorporation, the Corporation may from time to time alter, amend, repeal or adopt, in whole or in part, any provisions of this Amended and Restated Certificate of Incorporation, subject to the next sentence. Notwithstanding any other provision of this Amended and Restated Certificate of Incorporation or the Bylaws (and in addition to any other vote that may be required by law), there shall be required to amend, alter, change, or repeal, or adopt any provision inconsistent with, directly or indirectly, Article V, Article VIII, Article IX or this Article X of this Amended and Restated Certificate of Incorporation the affirmative vote of at least 66 2/3% of the voting power of all of the then-outstanding shares of the capital stock of the Corporation entitled to vote generally in the election of directors, voting together as a single class; provided, however, that the provisions of this sentence shall be of no force and effect effective as of the completion of the 2021 annual meeting of the stockholders of the Corporation.

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IN WITNESS WHEREOF, the Corporation has duly executed this Amended and Restated Certificate of Incorporation this 27th day of January 2017.

[Signature Page to Amended and Restated Certificate of Incorporation of Varex Imaging Corporation]