National Institute of Standards & Technology, Acquisition & Assistance Division, Bldg. 301, Rm. B117, Gaithersburg, MD

66 -- POSITION-SENSITIVE PROPORTIONAL COUNTER AND DATA ACQUISITION SYSTEM SOL 52SBNB6C9185 DUE 070896 POC David Merrell, 301-975-6308/ Pauline Mallgrave, Contracting Officer, 301-975-6330 The National Institute of Standards & Technology(NIST) has a requirement for a Position-Sensitive Proportional Counter (PSPC) and Data Acquisition System (DAS), ORDELA Model 2660N or equivalent. This equipment is a large (64cm X 64cm) active area, high resolution (0.5cm spatial resolution), high count rate (10 to the 5th power), neutron PSPC and DAS for use on a 30-meter Small Angle Neutron Scattering instrument at NIST's Gaithersburg, MD Cold Neutron Research facility. The DAS shall provide programmed control of all essential PSPC operations such as Acquire, Stop Clear, Time Slicing, Data Storage, and Display. All PSPC electronic tuning parameters (e.g. amplifier gains and discriminator levels) shall be remotely adjustable from the DAS. DAS shall include a programmable pulse generator to allow simulating neutron pulses at any pixel location. DAS shall have 16K memory bins, one for each pixel, that can be polled & cleared without interruption of the counting process (i.e. memory shall be dual-ported). DAS shall include an Ethernet interface for data transfer to a remote computer system. The PSPC shall operate in a vacuum environment. All PSPC electronic circuits shall be contained in a sealed enclosure located on the PSPC back plane. This enclosure shall contain at least 2 ports for venting to atmosphere to permit operation of the electronics in air. The PSPC shall include an operations manual. The contractor shall certify and provide test results to verify that functional requirements are met. Requirement includes a minimum 12 month warranty. Delivery required 12 months from award, FOB Destination - Gaithersburg, MD. All responsible sources may submit a proposal which shall be considered by the Agency. Requests for the solicitation should be in writing. (0152)

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