National Institutes of Health, OPM, OA/OD, 6120 Executive Blvd., Bethesda, MD 20892

66 -- X-RAY DIFFRACTION SYSTEM SOL 263-97-P(M7)-0047 DUE 090297 POC Al Plyler, 301/402-3068/Contracting Officer, Edward B. Wilgus, 301/402-3070. This is a combined synopsis/solicitation for commerical items description, prepared in accordance with the format in FAR 12.6, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation, proposals are being requested and a written solicitation will not be issued. The solicitation, No. 263-97-P(M7)-0047 is issued as an Invitation for Bid (IFB). The solicitation/contract will include all applicable provisions and clauses in effect through FAR FAC-90-46. The Standard Industrial Code is 3844. The NIH intends to contract with Molecular Structure Corporation. 3200 Reseach Forest Drive, The Woodlands, TX 77381, under the authority of FAR 6-302-1 for this product. It is the Government's belief that molecular Structure Corporation is the sole source for this product. A. The X-Ray Diffraction System shall consist of an image plate detector including controller, theta stage, x-ray mirror, 6-piece set of erasing lamps, x-ray shutter, re-installation andforty inch extension to existing radiation enclosure, data processing software, and computer controlled crynogentic system. B. The system shall allow users to select pixel sizes of 50 microns x 50 microns, 100 microns x 100 microns, or 200 microns x 200 microns. C. The system detector shall consist of a dual photo multiplier configuration having a dynamic range of 100,000. D. The sensitivity of the system detector shall be I photon per ADC or better. E. The system shall read plates in such a way that coordinate conversion to orthogonal coordinates is not required. F. All system mirrors shall be helium purged to limit air scatter and oxidizing effects. G. The optical portion of the system shall have remote control of mirror translation, curvature, and slit aperture. H. The diffraction system shall include a subsystem having the capability to operate at -180 degree centigrade temperatures without the use of liquid nitrogen. I. The system shall include a flexible transfer tube allowing for positioning in any orientation from vertical to horizontal. J. The Contractor shall furnish all items necessary to allow for mounting the Diffraction system to an existing Rigaku RU200 rotating anode generator. K. Shall include a HKL or equal, area detector processing software package capable of reducing collected data. Offers must be in writing and are due no later than 1:00 p.m. September 3, 1997, to the attention of Al Plyler at the above address. (0230)

Loren Data Corp. http://www.ld.com (SYN# 0294 19970820\66-0023.SOL)