U.S. Army Aviation and Missile Command, Acquisition Center, Bldg 4488, Redstone Arsenal, AL 35898-5280

66 -- DOSIMETRY GRADE X-RAY CALIBRATION SYSTEM SOL DAAH01-99-R-0008 DUE 101698 POC Betty Carden, 256-842-7223 (fax: 256-955-6449) Contract Specialist, or Shirley Hill, 256-842-7436 Contracting Officer THIS IS A COMBINED SYNOPSIS/SOLICITATION for commercial items prepared in accordance with the format in Federal Acquisition Regulation (FAR) Subpart 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. This solicitation is a Request For Proposal (RFP) Number DAAH01-99-R-0008. The RFP and incorporated provisions and clauses are those in effect through Federal Acquisition Circular (FAC) 97-06. This solicitation is competitive, restricted to small businesses. The Standard Industry Code (SIC) is 3841, number of employees is 500. The requirement is as follows: 1. SCOPE: This purchase description covers a dosimetry grade x-ray calibration system. 2. COMPONENTS: The x-ray system shall include the following: a. X-ray tube; b. High voltage generators; c. Cooling system; d. Shielded enclosure; e. Beam shutters; f. Filter assembly; g. Safety system; h. Rail systemwith movable exposure table; i. Control console. When assembled, the components shall form a complete 320 kilvolt (kV) constant potential (cp), high stability x-ray calibration unit. 3. PURPOSE: The X-ray calibration system will be used in the Primary Radiation Standards Center to (1) calibrate x-ray detection instrumentation for U.S. Army hospitals and medical activities worldwide as well as survey instruments and dosimeters used in support of recently fielded DA non-destructive test equipment (NDTE) x-ray systems. 4. SALIENT CHARACTERISTICS: The x-ray system shall incorporate the following salient characteristics, which are essential to the needs of the Government: a. X-ray Tube: (1) The X-ray tube shall be a double focus tube and shall be a double pole tube with stationary anode and oil insulation. It shall have a minimum 2 mm thick beryllium (Be) window and no more than 4 mm Be or Be equivalent total inherent filtration. The full solid angle of the emergent x-ray beam shall not exceed 20 degrees and shall not be less than 10 degrees. (2) The tube head shall have minimum ratings of 320 kVcp and 13 milliamperes (mA) on a 4.5 mm focal spot, and 320 kVcp and 3 mA on a 1.2 mm focal spot. (3) The tube shall be designed for protection against leakage radiation. b. High Voltage Generators: (1) The unit shall include two high voltage generators, one furnishing a minimum of -160 kVcp to ground, the other furnishing +160 kVcp to ground. The generators shall be voltage-doubling with smoothing capacitors and solid state rectifiers. The high voltage generating components shall be oil immersed in rugged steel tanks. (2) A solenoid grounding system shall be provided to automatically ground any electrical charge remaining in the capacitors and cables when the entire unit is turned off. (3) The generators shall be supplied with interconnecting cables to the control panels/console. (4) High voltage ripple shall not exceed 70 volts peak-to-peak at maximum system output. (5) External means of monitoring kV and mA shall be provided. (6) A 1500 Hz regulated filament power supply shall be provided to minimize modulation of the x-ray output due to filament intensity variations. (7) High voltage cables shall be provided which are shockproof and which shall be provided with special rubber cone plugs and snap-type locks. The cables shall be interchangeable (capable of being used for either anode or cathode connection). A means of locking the high voltage cable ends to their plugs shall be provided in order to prevent unauthorized personnel from removing cables. Two protective terminal caps shall be provided with each cable. c. Cooling system: An oil-to-water heat exchanger to cool the x-ray tube head shall be provided. Water lines used to connect the heat exchanger to the facility water supply shall be provided. d. Shielded enclosure: A rectangular shielded enclosure constructed of lead lined steel, which will completely enclose the x-ray tube head and head mounts, shall be provided. The enclosure shall limit leakage radiation from the tube head to less than 0.5 mR/hr at a distance no greater than 5 cm from any part of the enclosure's exterior surface when the tube is operating at maximum rated kVcp and mA. The enclosure shall be configured such that the x-ray tube head is mounted within with its long axis horizontal to the floor and the x-ray beam port is 150 cm above the floor. e. Beam shutters: Two beam shutters, a safety shutter and a high-speed shutter, shall be provided. During normal operation, the safety shutter shall open first, followed by the high-speed shutter. At the end of the exposure, the high-speed shutter shall close, followed by the safety shutter. Both shutters shall immediately close upon power-down of the system. (1) Safety shutter. The safety shutter shall be mounted inside the shielded enclosure. When closed, it shall limit the intensity of the useful beam to less than 0.5 mR/hr at a distance 5 cm from the front surface of the shutter for the maximum rated kVcp and mA. It shall move from fully closed to fully open (and vice versa) in 1.0 second or less. (2) High-speed shutter. A digitally timed high-speed shutter, used to control the exposure period, shall be mounted between the safety shutter and the tube head. The shutter shall move from fully closed to fully open (and vice versa) in 0.25 +/- 0.01 second. f. Filter assembly: An assembly which includes at least 10 slots, each of which will hold a set of filters shall be provided and mounted to the front surface of the shielded enclosure. The assembly shall rotate such that the selected filter combination will be positioned directly in front of the x-ray beam port. The slots shall be designed such that they can hold filters of 8.3 cm diameter ranging in thickness up to 25.0 mm. g. Safety system: The x-ray system shall be provided with the following safety features: (1) A SCRAM control located within the room containing the tube head which will enable power down of the system when activated. (2) A door interlock which will immediately close the safety shutter when the door to the x-ray room is opened. The shutter shall not be able to be re-opened until the door is closed and the interlock system reset. Interlock system reset shall be accomplished from the control console. (3) An EMERGENCY OFF control to be located on the control console which will shut the system down when activated. (4) Warning lights on the control console and at the entry door to the x-ray room which will indicate when high voltage is on the x-ray tube and when the safety shutter is open. (5) Audible pre-warning signals when (1) high voltage is applied to the tube and (2) when the shutters are opened. h. Rail system with movable exposure table: A remotely positionable exposure table which will hold instrumentation and dosimeters to be irradiated shall be provided. The table shall ride on a track which will in turn be mounted on a platform built into the floor of the x-ray room (already in place). Track length shall be at least 5 meters but shall not exceed 6 meters. The platform consists of two heavy-duty aluminum rails with centers 75 cm apart. Table distance from the face of the x-ray tube window shall range from 50 cm to at least 550 cm. The table shall be height adjustable from the centerline of the radiation beam to at least 30 cm below the centerline and laterally adjustable to at least 25 cm either side of the beam centerline. Table positioning in all three axes (distance, height adjustment, lateral adjustment) shall be within 1 mm of selected position. Dimensions of the table surface shall be at least 30 cm x 40 cm. Table positioning in all three axes shall be accomplished from the control console. i. Control console: A control console, enabling remote operation of the x-ray system and monitoring of x-ray system status, shall be provided. The console shall include a keyed switch for turn-on and normal turn-off of the system. It shall include an EMERGENCY OFF control for emergency shut down of the system. Other specific requirements for the control console are as follows: (1) The console shall include controls enabling the operator to set and apply tube kV and mA. Voltage shall be selectable from 10 kV to 320 kV in 0.1 kV increments. Kilovoltage accuracy shall be better than +/- 1 percent of set value. kV drift as a function of temperature shall not exceed 0.005 percent. Current shall be selectable from 0.1 mA to 13.0 mA in 0.05 mA increments. Current accuracy shall be better than 0.2 percent of set value. The console shall include a display which indicates set and actual kV and mA. kV display resolution shall be 0.1 kV and mA display resolution shall be 0.1 mA. (2) The console shall include a control whereby the operator may select the filter to be used. The console shall include a display indicating filter in use. (3) The console shall include controls whereby the operator may position the exposure table. The console shall include a display indicating table position in all three axes. (4) The console shall include controls for opening and closing the safety and high-speed shutters. The console shall include an automatic reset, six digit exposure timer to count from 0 to 999.999 minutes in .001 min increments for control of the high-speed shutter. The timer shall be capable of preset or manual control of exposure time. The timer shall have a time-out feature that will enable an irradiation interrupted by closure of the safety shutter during either preset or manual operation to be resumed and completed upon reopening the safety shutter. The timer shall begin counting down from the indicated pre-set exposure time when the high-speed shutter is in the fully open position. When the timer reaches zero, x-ray exposure is terminated. (5) The console shall include a control whereby the operator may select the tube focal spot to be used. Focal spot in use shall be displayed on the console. (6) Console controls shall include protective interlocks to prevent equipment damage from loss of coolant flow, excessive voltage or current, or prolonged exposure periods. Controls shall not allow selection of operation outside the system's rated capacity. (7) Automatic warm-up sequences selectable from the control console shall be provided to correctly energize the x-ray tube when the system is cold. At least three programs shall be provided to accommodate various system down times (day, week, month). The appropriate mode shall be automatically selected based upon battery-backed real time clock. Manual override shall be provided for this feature. (8) The console shall include an RS232 interface to enable potential computer control of portions of the system. j. General requirements: (1) The system shall be operable on 208 volt three phase, 60 ampere AC power and shall require no additional line conditioning against noise or transients for operational compliance with specifications. Appropriate electrical/mechanical protection devices shall be provided to preclude equipment damage due to overloads and component failures. (2) The contractor shall provide all cables and accessories required to enable proper operation of the x-ray system in accordance with these specifications. The control console will be located approximately 50 feet from the tube head. The high voltage generators and heat exchanger will be located no more than 20 feet from the tube head. k. Installation and training: The system shall be installed and made fully operational in the Primary Radiation Standards Center, Redstone Arsenal, AL by the contractor. The contractor shall provide training in the operation and maintenance of the system. The contractor shall provide operation manuals for system elements. One manual is required with each instrument. Proposal is firm for 90 days unless otherwise stated. Required delivery is 90 days after contract award. Earlier delivery is acceptable and desirable at no additional cost to the Government. Inspection, acceptance, and FOB are destination: Redstone Arsenal, AL. An evaluation shall be performed to determine if each proposal is technically acceptable. A technically acceptable proposal must clearly show that the offeror can meet the minimum requirements of the Government. Each proposal will be reviewed to assure that each function included in the requirement is addressed in the proposal. Therefore, each offeror must respond to each functional requirement of the specification. The Government intends to award a contract resulting from this solicitation to the responsible, responsive, technically acceptable and lowest priced offeror whose offer conforms to the solicitation and will be most advantageous to the Government. All FAR clauses and forms may be obtained on the internet at www.arnet.gov/far/. The FAR provision at 52.212-1, Instructions to Offerors -- Commercial Items, applies to this acquisition. A completed copy of the FAR provision at 52.212-3, Offeror Representations and Certifications -- Commercial Items, must be completed and submitted with the proposal. The FAR clause at 52.212-4, Contract Terms and Conditions -- Commercial items, applies to this acquisition, with the following addenda: FAR 52.247-34, F.O.B. Destination,FAR 52.212-5, Contract Terms and Conditions Required to Implement Statutes or Executive Orders -- Commercial Items, applies to this acquisition; the following clauses under paragraph (b) are applicable: (6) 52.222-26, Equal Opportunity (E.O. 11246); (7) 52.222-35, Affirmative Action for Special Disabled and Vietnam Era Veterans (38 U.S.C. 4212); (8) 52.222-36 Affirmative Action for Handicapped Workers (29 U.S.C. 793); (9) 52.222-37, Employment Reports on Special Disabled Veterans and Veterans of the Vietnam Era (38 U.S.C. 4212); Defense Federal Acquisition Regulation Supplement (DFARS) provision 252.225-7000, Buy American Act -- Balance of Payments Program Certificate applies to this acquisition. DFARS clause 252.212-7001, Contract Terms and Conditions Required to Implement Statutes or Executive Orders Applicable to Defense Acquisitions of Commercial Items, applies to this acquisition; the following clause under Paragraph (b) is applicable: 252.225-7001 Buy American Act and Balance of Payment Program. The proposal must be signed by an official authorized to bind your organization. You must submit two (2) copies to: U.S. Army Aviation and Missile Command, ATTN: AMSAM-AC-SM-T/B. Carden, Redstone Arsenal, AL 35898-5280. Offers may be submitted on letterhead stationary and, at a minimum, must show: (1) the solicitation number, (2) the time specified in the solicitation for the receipt of offers, (3) the name, address, and telephone number of the offeror, (4) a technical description of the items being offered in sufficient detail to evaluate compliance with the requirements in this solicitation. This may include product literature, or other documents, if necessary, (5) terms of any express warranty, (6) price and discount terms, (7) a completed copy of the representations and certifications. Offers that fail to furnish required representations or information, or reject the terms and conditions of this solicitation may be excluded from consideration. See Note 1 ***** Posted 09/30/98 (W-SN256403). (0273)

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