NASA, George C. Marshall Space Flight Center, Procurement Office, Marshall Space Flight Center, AL 35812

49 -- 50KEV ELECTRON FLOOD GUN SYSTEM SOL 8-2-4-21-09750 POC Contact Gladys Franklin, 205-544-0331, GP26-B/Contract Specialist, or Jane Maples, GP25/Contracting Officer NASA/MSFC plans to issue a Request for Offer (RFO) for 50KeV Electron Flood System, Kimball Part Number FG-9/EGPS-9 or equal -- Quantity 1 System -- Specifications: The fully integrated system shall consist of the following subsystems meeting the listed specifications: (1) 19 inch rack mounted electron flood gun controller unit with a minimum of 50 foot of cabling between the rack mounted hardware and the vacuum system hardware be as follows: a. Chassis must provide a standard 19 inch rack mounted front panel and a roller glide system for easy maintenance access; b. Unit shall provide manually adjustable metered controls of beam energy, beam current, beam divergence, and the anode, grid, and cathode voltages; c. Unit shall provide remote analog control of beam energy, beam current, beam divergence, and the anode, grid, and cathode voltages; d. Power requirements: Single phase, 60 Hz,120v; e. Controller Unit shall be compatible with subsystems 2 and 3 -- (2) 19-inch rack mounted 50KV power supply shall be as follows: a. Cassis must provide a standard 19 inch rack mounted front panel; b. Unit shall provide adjustable metered control to vary output voltage from 1Kv to 50KV; c. Unit shall be compatible to subsystems 1 and 3 -- (3) Vacuum system mounted electron flood gun source:shall include: a. Mount to a 6 inch O.D. conflat vacuum flange; b. Maximum of 10 inch of the Flood electron gun source shall not extend more than 10.5 inches beyond the vacuum interface flange into the vacuum chamber; c. Maximum of 20 percent variance in beam uniformity from the center of the beam to the outer edge; d. The cathode, filament, or firing unit assembly shall be capable of being replaced by the user and not harmed by repeated exposure to atmospheric gases while cold; e. The high voltage cable furnished to connect the Flood Electron Gun to item number 1 e. a minimum of 50 foot in length and shielded; f. Four spare cathode, filament, or firing unit assemblies shall be included; g. Operational capability shall be 10E-4 Torr or lower; h All materials exposed to vacuum shall be high vacuum compatible; limited to metal, ceramics, and/or Teflon type materials -- System verification testing shall be performed and documented with a minimum of 8-hour burn-in, to these following overall specifications: beam current, measured with a faraday cup, shall be measured for one hour at 10nA and 100nA, measured for 30 minutes at 1uA and 10uA, and measured for 10 minutes at 100uA; beam energy shall be controllable, without sparking events, from 1Kev to 50Kev -- Documentation: two sets shall be provided including operational manuals, conditioning of new emission units and complete schematics -- One year warranty on the system -- Delivery 120 Days -- This procurement is being conducted under the NASA/MSFC MidRange Pilot Test Program approved by the Office of Federal Procurement Policy on April 16, 1993 -- Requests for copies of the RFO must be submitted in writing-- Transmission by facsimile to 205-544-9080 or by Internet e-mail to gladys franklin @msfc.nasa.gov is acceptable -- RFO will be released on or about 15 days after publication in the Commerce Business Daily (CBD) -- Firm date for receipt of offers will be stated in the RFO -- This procurement is a total small business set-aside -- All responsible business sources may submit an offer which shall be considered by the agency -- Documents related to this procurement are available over the Internet -- The documents are in ASCII format and reside on a World-Wide Web (WWW) server, which may be accessed using client browsers, such as, MOSAIC -- The WWW address, or URL, of the MSFC Procurement home page is: ''http://procure.msfc.nasa.gov''. (0045)

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