Department of Commerce, Mountain Administrative Support Center, Procurement Division, MC3, 325 Broadway, Boulder, CO 80303-3328

A -- ION TRAP FREQUENCY STANDARD EXPERIMENT SOL NB847700073DT DUE 012097 POC Doris Turner, 303-497-3872; FAX: 303-497-3163 The National Institute of Standards and Technology (NIST) has a requirement which will be performed between April 1, 1997 through March 30, 1998. The scope of this work will focus on two different ion trap experiments on non-neutral plasma physics and ion trap frequency standards. The non-neutral plasma physics work involves detailed studies of the effectiveness of a rotating field perturbation for controlling the rotation frequency of laser-cooled Be+ or Mg+ ions in a Penning trap. These studies should determine the distortion of the plasma boundary produced by the rotating field perturbation and determine how large a perturbation is required so that there is no slip between the frequency of the applied perturbation and the measured plasma rotation frequency. The ion trap frequency standard work will examine the potential of the 40 GHz ground state hyperfine transition in the 199 isotope of singly-ionized Hg as an accurate microwave frequency standard with a linear rf trap capable of trapping a string of 10 -- 50 laser-cooled Hg ions. Previous experience with laser-cooled non-neutral ion plasmas is required. Experience with the use of rotating field perturbations to control the plasma density and rotation frequency in a Penning trap is necessary. Extensive hands-on experience with the set-up and operation of frequency doubled CW lasers with wavelengths in the ultraviolet is a necessity for the completion of this work. The proposed contract action is for services for which the Government intends to solicit and negotiate with only Xiao-Pei Huang under authority of FAR 6.302. Interested sources proposing to supply an equivalent service must submit a written qualification statement clearly establishing capability to meet the above requirements within 30 days from the date of this synopsis. In the absence of other qualified sources, it is the intent of the Government to negotiate a sole source contract under the authority of 41 U.S.C. 253(c)(1) to Xiao-Pei Huang, 987 W. Willow Street, Louisville, CO 80027 as this source is considered to be the only responsible source and no other type of service will satisfy agency requirements. (0354)

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