National Institutes of Health, National Institutes of Diabetes and Digestive and Kidney Diseases, DHHS, Natcher Building, 45 Center Drive MSC 6600, Room 6AN32, Rockville, Maryland 20892

66 -- MIRROR OPTIC SYSTEM AND 2-THETA STAGE SOL NIH-NIDDK-95-12/KJ DUE 072095 POC Katrina James, Contract Specialist, 301/594-7730. The National Institutes of Health (NIH), National Institutes of Diabetes and Digestive and Kidney Diseases (NIDDK) intends to contract on a sole source basis with Molecular Structure Corporation, The Woodlands, Texas for a Mirror Optic System to be installed in a existing Government-owned R-axis Image Plate System which is a integral part of a existing Government-owned RU200 rotating Anode X-Ray Generator System purchased from Molecular Structure Corporation. The Mirror Optic System (PN MSC16080) shall be a double focussing mirror system with two mirrors; an 80 mm mirror plated with Plantinum and a 160 mm mirror plated with Nickel; shall be enclosed within a helium chamber; the enclosure for the Mirror Optic system shall be provided with a leaded plexiglass front window; shall include a remote control for translation and curvature and beam splitter adjustments for each mirror; shall include a remote controlled attenuator and fluorescent screen wheel within the helium chamber; shall have x and y adjustments for alignment; shall be supplied with a diode x-ray detector and electronics to aid in the alignment of the mirrors; and also demonstrate to the Government's satisfaction the compatibility of operation with the existing Government owned Rigaku RU-200 X-ray generator and the existing Government owned Raxis IIC Imaging Plate System. The 2-Theta Stage (PN MSC53450) shall include a crystal-to-detector translation sled mounted on air bearings; shall have a two-axis digital readout system; shall have an extension table with a stainless steel surface; shall be provided with a tube tower extension for the existing Government owned Rigaku RU-200 rotating anode; shall have a crystal-to-detector range of 53mm to 450mm; shall have an 80 degree 2-theta range (this range shall extend from -35 degree to +45 degrees; the 2-theta stage shall be compatible and demonstrate to the Government's satisfaction the interoperability with the existing Government owned Rigaku RU-200 X-ray Generator and the existing government owned RAXIS IIC Imaging Plate System. The NIH will also acquire some additional equipment for the Mirror Optic System: (1) Be window 4550-408-02 (RAG-BE-D2R72L); (2) Be window S o-ring (RAG-BE-4DS020); (3) Spacers for low temperature stand for height adjustment; (4) right port rotary shutter; and (5) move R-AXIS from left port to right port. The additional equipment shall insure the propoer integration with the system and its proper operation after integration. The NIH believes the proposed contractor is the only source available as it is uniquely qualififed to provide the subject Mirror System. This is not a formal solicitation. However, concerns that respond should furnish detailed data concerning their compabilities demonstrating the offeror ability to provide the equipment needed. Determination to use other than Full and Open Competition was made in accordance with 41 U.S.C. 252(c)(1) as set forth in FAR 6.302-1. This notice may represent the only official notice of such a solicitation (See Note 22). (0124)

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