U.S. Nuclear Regulatory Commission, Division of Contracts, Attn: Carolyn Cooper, Mail Stop TWFN-7E41, Washington, D.C. 20555

99 -- PURCHASE OF ALARA SCANNER TRACK FOR THE SAFT ULTRASONIC SYSTEM SOL RS-NRR-95-034 DUE 051095 POC Elois J. Wiggins, Contracting Officer, 301/415- 7328, Contract Specialist, Carolyn Cooper, 301/415- 6737 The U.S. Nuclear Regulatory Commission (NRC) intends to negotiate a sole source contract with Virginia Corporation of Richmond (VA Corp) to purchase ALARA II Scanner Tracks for the Synthetic Aperture Focus Techniques (SAFT) Ultrasonic Testing (UT) System that is used in the NRC Non-Destructive (NDE) Mobile Laboratory operated by the Region I Office. The SAFT UT inspection system is implemented to verify the integrity of the nuclear safety piping systems and to validate the computer based UT evaluations made by NDE vendors at nuclear power plants on piping systems important to safety. The SAFT Ultrasonic Testing scanner system positions a UT transducer on piping which is being examined and coordinates the UT data with the transducer position on the component for computer processing to characterize the volume being examined. The tracks (different sizes to accommodate different size pipes) on which the UT system operates, are essential to the examination process. The track is an aluminum alloy in the shape of an I beam rolled around the pipe put split in two equal halves. The track design includes a series of pins in one of the outer edges of the I beam to provide positive driving to the scanner. The track has standoff bolts to center the track around the pipe. The track I beam dimensions are approximately 1-3/4'' x 1-3/4''. The inside diameter for a track assembly intended for a 12'' nominal pipe size is approximately 12-15/16''. This action is being pursued on a sole source basis because the specific tracks required by the NRC are manufactured by the VA Corp under Patent No. 4586379. VA Corp is the only known source from who these tracks can be obtained. The tracks must be equal in material, design and dimension to those manufactured by VA Corp. Interested firms should submit written requests to the U.S. Nuclear Regulatory Commission at the address as shown above. Telephone requests will not be honored. Closing date for proposals is 30 days after issue date of solicitation. (0082)

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