EXHIBIT R AMENDED AND RESTATED JOINT FILING AGREEMENT

EXHIBIT R

AMENDED AND RESTATED JOINT FILING AGREEMENT

This Amended and Restated Joint Filing Agreement (this “Agreement”), dated as of August 5, 2013, is made by and among Juniper Public Fund, L.P., Juniper HF Investors II, LLC, Juniper Investment Company, LLC, Xxxxxx X. Xxxxxx, Xxxx X. Xxxxxxxxxxx, Juniper Acquisition Corporation, Juniper Holdings, Inc., Juniper TGX Investment Partners, LLC, Juniper TGX Investors, LLC, Xxxxxxxx Xxxxxx, Xxxxxxx Xxxxxxxx, Xxxxx X’Xxxxx 2009 GRAT, Xxxxxxx Xxxxxxxxx, Xxxxxx Xxxxxx, Xxxxxxx Xxxxxxx, Xxxxxx Xxxxxxxxx, Xxxxx X. Xxxxxxx and Xxxxx Xxxxx.

WHEREAS, each of Juniper Public Fund, L.P., Juniper HF Investors II, LLC, Juniper Investment Company, LLC, and Messrs. Xxxxxx and Bartholdson (together, the “Original Parties”) are parties to that certain Joint Filing Agreement dated as of March 5, 2012 (the “Original Agreement”), pursuant to the terms of which such parties agreed to provide for the filing of a joint Schedule 13D, and all amendments thereto, with respect to shares of common stock, par value $0.01, of Theragenics Corporation (the “Shares”);

WHEREAS, the Original Parties desire by this Agreement to amend and restate the Original Agreement in its entirety to add Juniper Acquisition Corporation, Juniper Holdings, Inc., Juniper TGX Investment Partners, LLC, Juniper TGX Investors, LLC, Xxxxx X’Xxxxx 2009 GRAT, and Messrs. Koenig, Sullivan, Obermayer, Latsos, Pagonas, Stoeckert, Xxxxxxx and Grant thereto and to provide for the joint filing on behalf of each of them of a statement on Schedule 13D (including any and all amendments thereto) with respect to the Shares.

NOW, THEREFORE, the parties hereto agree as follows:

In accordance with Rule 13d-1(k)(1) under the Securities and Exchange Act of 1934, as amended, the parties agree to the joint filing on behalf of each of them of a statement on Schedule 13D (including any and all amendments thereto) with respect to the Shares, and further agree that this Agreement shall be included as an exhibit to such joint filings.

The parties further agree that each party hereto is responsible for the timely filing of such Statement on Schedule 13D and any amendments thereto, and for the accuracy and completeness of the information concerning such party contained therein; provided, however, that no party is responsible for the accuracy or completeness of the information concerning any other party, unless such party knows or has a reason to believe that such information is inaccurate.

This Agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument.

[Signature Pages Follow]

IN WITNESS WHEREOF, the undersigned have caused this Agreement to be executed as of the date first written above.

	JUNIPER PUBLIC FUND, L.P.
	By: JUNIPER HF INVESTORS II, LLC, its General Partner
	By:	/s/ Xxxx X. Xxxxxxxxxxx
	Name:	Xxxx X. Xxxxxxxxxxx
	Title:	Managing Member

	JUNIPER HF INVESTORS II, LLC
	By:	/s/ Xxxx X. Xxxxxxxxxxx
	Name:	Xxxx X. Xxxxxxxxxxx
	Title:	Managing Member

	JUNIPER INVESTMENT COMPANY, LLC
	By:	/s/ Xxxx X. Xxxxxxxxxxx
	Name:	Xxxx X. Xxxxxxxxxxx
	Title:	Managing Member

	By:	/s/ Xxxxxx X. Xxxxxx
	XXXXXX X. XXXXXX

	By:	/s/ Xxxx X. Xxxxxxxxxxx
	XXXX X. XXXXXXXXXXX

[Signature Page to Amended and Restated Joint Filing Agreement]

	JUNIPER ACQUISITION CORPORATION
	By:	/s/ Xxxx X. Xxxxxxxxxxx
	Name:	Xxxx X. Xxxxxxxxxxx
	Title:	Treasurer

	JUNIPER HOLDINGS, INC.
	By:	/s/ Xxxx X. Xxxxxxxxxxx
	Name:	Xxxx X. Xxxxxxxxxxx
	Title:	Treasurer

	JUNIPER TGX INVESTMENT PARTNERS, LLC
	By: JUNIPER TGX INVESTORS, LLC, its Managing Member
	By:	/s/ Xxxx X. Xxxxxxxxxxx
	Name:	Xxxx X. Xxxxxxxxxxx
	Title:	Managing Member

	JUNIPER TGX INVESTMENT PARTNERS, LLC
	By:	/s/ Xxxx X. Xxxxxxxxxxx
	Name:	Xxxx X. Xxxxxxxxxxx
	Title:	Managing Member

[Signature Page to Amended and Restated Joint Filing Agreement]

	By:	/s/ Xxxxxxxx Xxxxxx
	XXXXXXXX XXXXXX

[Signature Page to Amended and Restated Joint Filing Agreement]

	By:	/s/ Xxxxxxx Xxxxxxxx
	XXXXXXX XXXXXXXX
	Xxxxxxx X. Xxxxxxxx 000 Xxxxxxxx Xxxx Xxxxxxx, Xxxxxxxxxxxxx 00000-0000

[Signature Page to Amended and Restated Joint Filing Agreement]

	By:	/s/ Xxxxxxx Xxxxxxxxx
	XXXXXXX XXXXXXXXX

[Signature Page to Amended and Restated Joint Filing Agreement]

	By:	/s/ Xxxxxx Xxxxxx
	XXXXXX XXXXXX

[Signature Page to Amended and Restated Joint Filing Agreement]

	By:	/s/ Xxxxxxx Xxxxxxx
	XXXXXXX XXXXXXX

[Signature Page to Amended and Restated Joint Filing Agreement]

	By:	/s/ Xxxxxx Xxxxxxxxx
	XXXXXX XXXXXXXXX

[Signature Page to Amended and Restated Joint Filing Agreement]

	By:	/s/ Xxxxx X. Xxxxxxx
	XXXXX X. XXXXXXX

[Signature Page to Amended and Restated Joint Filing Agreement]

	By:	/s/ Xxxxx Xxxxx
	XXXXX XXXXX

[Signature Page to Amended and Restated Joint Filing Agreement]

	XXXXX X’XXXXX 2009 GRAT
	By:	/s/ Xxxxx X’Xxxxx
	Name:	Xxxxx X’Xxxxx
	Title:	Grantor

 [Signature Page to Amended and Restated Joint Filing Agreement]