National Institute of Standards & Technology, Acquisition & Assistance Div., Bldg. 301, Rm B117, Gaithersburg, MD 20899

B -- MEASUREMENT OF RARE EARTH SPECTRA SOL 53SBNB867005 DUE 101797 POC Sandra Febach (301) 975-6326, FAX (301) 963-7732 WEB: NIST Contracts Homepage, http://www.nist.gov/admin/od/contract/contract.htm. E-MAIL: NIST Contracts Office, Contract@nist.gov. The National Institute of Standards & Technology (NIST) intends to negotiate with Harvard University, Office for Sponsored Research, on a sole-source basis for development of procedures for radiometric calibration of the NIST Fourier Transform Spectrometer (FTS) and all experimental and interpretive work to obtain measurements, energy level analysis, and gf values for the first two spectra of dysprosium, Dy I and Dy II. Deliverables will include: (1) radiometric calibration of NIST FTS from 300 nm to 2 um; (2) obtain and measure Dy hollow-cathode and electrodeless lamp spectra with NIST FTS in range 300 nm to 2 um. Calibrate spectra radiometrically; (3) confirm energy level classifications of previously classified Dy I and Dy II spectral lines observed with NIST FTS and carry out searches for additional energy levels. Derive optimal values for all energy levels by using new measurements; (4) derive branching ratios of observed Dy I and Dy II lines. With branching ratios and lifetimes available in literature, derive gf values for all lines possible based on these data; and (5) supply reports on work completed, including all data described above. This acquisition is to be accomplished under the authority of FAR 13.106(a)(5) which permits sole source acquisition when only one source is reasonably available. The Harvard group has demonstrated unique qualifying experience with FTS high-resolution spectroscopy and also much experience in completing radiometric calibrations and work on complex atomic spectra. Award to another source would result in substantial duplication of cost to the Government that is not expected to be recovered through competition, and would result in unacceptable delays in fulfilling the agency's requirements. Anticipated period of performance is 11/01/97 through 04/30/97. This notice is not a request for proposals. However, interested parties may identify their interest and capability to satisfy the Government's requirement NLT the response date above. Capability statements must include documentation of expertise in all areas pertinent to the proposed project. A determination by the Government not to compete this proposed contract based upon responses to this notice is solely within the discretion of the contracting officer. A solicitation document is not available. See numbered Notes 1 and 26. (0279)

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