NASA/Goddard Space Flight Center, Code 219, Greenbelt, MD 20771

66 -- PURCHASE OF AN IMAGING PHOTON DETECTOR AND RELATED EQUIPMENT SOL RFQ920-93974-0000-902 DUE 111398 POC Deborah A. Bittner, Contract Specialist, Phone (301) 614-5609, Fax (301) 614-5619, Email Deborah.A.Bittner.1@gsfc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.nasa.gov/EPS/GSFC/date.html#RFQ920-93974-0000-902. E-MAIL: Deborah A. Bittner, Deborah.A.Bittner.1@gsfc.nasa.gov. NASA/GSFC plans to issue a Request for Quotation (RFQ) for the purchase of one (1) each Model 2601B Imaging Photon Detector (see additional specifications below); one (1) each Digitized Position Output Option 005; one (1) each Anti-Reflection (AR) coated windows option 017; one (1) each Short Image Distance cooler housing option 020; and one (1) each Fast Timing Pickoff provided on SMA connector, option 2601/X61. More complete specifications for the Model 2601B Imaging Photon Detector include: Mepsichron-II high resolution imaging 3-stage MCP PMT, 25.4 MM active area, S-20 Photocathode, UV grade faceplate, radiant Q.E. minimum 12% at 532 nm. maximum permissible dark count <110 counts/sec over entire active area at -25 degrees c. Thermoelectrically-cooled PMT housing and power supply with UV- grade fused silica, double-pane, thermally insulating entrance window. High voltage power supply/voltage divider. Low noise with customized voltage divider netwoek optimzed for imaging PMT. SHV connectors with overcount trigger module protection. Readout electronics including Model 2401B position analyzer complete with 4 channel EP preamplifier module. High voltage and signal interconnecting cables for base system, with power requirements of 110-120 VAC, 60 HZ, approximately 500 watts. This procurement is being conducted under the Simplified Acquisition Procedures (SAP). NASA/GSFC intends to purchase the items from Quantar Technology Inc., 200 Washington Street, Santa Cruz, CA 95060. The Imaging Photon Detector System is to be used in the Imaging Photon Counting Lidar Receiver already in place. The Model 2601B has the unique capability to detect single photoelectron events with 100 picosecond timing resolution combined wiith image sensitive readoutsof event location as required by the imaging lidar. Only Quantar Technology, Inc. is capable of producing (in the same device) an imaging system with better than 16 x 16 pixel resolution, and meet the requirements for 100 picosecond timing resolution and high spatial resolution. The Government intends to acquire a commercial item using FAR Part 12. Interested firms have 15 days from the publication of this synopsis to submit in writing to the identified point of contact, their qualifications/capabilities. Such qualifications/capabilities will be used solely for the purpose of determining whether or not to conduct this procurement on a competitive basis. Responses received after the 15 days or without the required information will be considered nonresponsive to the synopsis and will not be considered. A determination by the Government to not compete this proposed effort on a full and open competitive basis, based upon responses to this notice is solely within the discretion of the Government. Oral communications are not acceptable in response to this notice. No phone calls, faxes are acceptable. All responsible sources may submit an offer which shall be considered by the agency. An Ombudsman has been appointed. See Internet Note "B". Posted 10/09/98 (D-SN260899). (0282)

Loren Data Corp. http://www.ld.com (SYN# 0220 19981014\66-0007.SOL)