National Institute of Standards and Technology, Acquisition and Assistance Division, Bldg. 301, Room B117, Gaithersburg, MD

66 -- INTEGRATED ULTRA-LOW BACKGROUND 8 DETECTOR, COMPUTER CONTROLLED ALPHA SPECTROSCOPY SYSTEM SOL 52SBNB6C9097 POC Brenda K. Lee (301) 975-6394, CO Phyllis A. Bower (301) 975-6336 The National Institute of Standards and Technology (NIST), intends to negotiate with EG&G Instruments, 100 Midland Road, Oak Ridge, TN 37831-0895, on a sole source basis to acquire a Integrated Ultra-Low Background 8 Detector, Computer Controlled Alpha Spectroscopy System. The Government also requires on-site installation and training, one year warranty to include parts and labor, FOB destination Gaithersburg MD, and a required delivery within 60 days after contract award. This is a sole source procurement in accordance with FAR 6.302.1, Only One Responsible Source, because EG&G Ortec based Alpha Spectrometry system is the only source compatible with the low-level radiochemistry program's akoga-particle metrology facility in the Radioactivity Group. The integrated system shall consist of at least eight (8) complete alpha-spectroscopy units (chambers, detectors, and associated electronic components) and shall require only a single connection to a vacuum pump and a single connection to a 486-66 PC to provide full functionality. Each modular spectroscopy unit shall have the following independent functions: Vacuum Chamber; each vacuum chambers shall be constructed of low-background materials (less than one count/hr/detector) and shall be easy to decontaminate, and easy to remove in the case of severe contamination. Each chamber shall have multiple sample tray mounting distances from the detector, with a minimum distance of less than 4 mm. Each chamber shall have a front panel mounted PUMP/HOLD/VENT valve. The chambers shall be connected to a single vacuum manifold and the entire system shall be in a table-top mount, with provision for installation into a 19'' rack. The chambers shall have a high performance O-ring seal which is capable to maintain a vacuum of less than one millitorr. vacuum control; a computer monitored-vacuum gauge from 0-1000 millitorr for each chamber. Integrated vacuum control circuitry to monitor each counting chamber shall be provided with the system. Test pulser; front-panel adjustable potentiometer control from 4-10 MeV,less than 50 parts-per-million per degree Celcius instability, front panel on/off switch. Amplifier and preamplifier; bias supply: Multi-Channel Analyzer (MCA); silicon ion-implanted detectors, zero to negative 20 volt bias to the source plates. Analog Digital Convertor (ADC); Multiplexer/Router. All electrical connectors and cables required for power, computer control, Windows-based software for spectral display, data analysis and data printout shall be included. Power input 120 V AC and 60 Hz. The spectrometers shall be operable from a single 486-66 PC. MS-Windows based system software, Maestro and Alpha Vison (A36-BI), to monitor and operate the unit and to perform spectral analysis. It shall include: MCA control, Preset selection: Real time, live time, peak count, integral count. Spectral fitting and analysis, 3.5'' floppy disk storage of data and spectrum. One each of all four sizes of sample trays (to accommodate 1/2'' - 7/8'', 3/4'' - 1'', 1 1/4'' - 1 1/2'', and 1 3/4 - 2'' diameter sources) including eight additional sample trays for 3/4''-1'' samples. One of non-Nim Dual-Port Memory Cable FAN-Out Box to connect two OCTETE PC systems to one personal computer. Provide special vacuum connections for two Octets PC systems that shares a single portable pump station (PPS115). Interested offerors may identify their interest and capability to respond to the requirements by submitting a capability statement. The capability statement must provide adequate information and qualifications of your ability to provide the requested system in order for the Government to consider whether to open this request for competition. However, all capability statements received within 45 days after date of preparation of this synopsis, will be considered by the Government. See Note Numbered 22 (0115)

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