Army Research Laboratory, ALC Procurement Division, ATTN: AMSRL-CS-AL-PC, 2800 Powder Mill Road, Adelphi, MD 20783-1197

66 -- ENVIRONMENTAL SCANNING ELECTRON MICROSCOPY SYSTEM SOL DAAL01-96-R-9443 DUE 121396 POC Robin Stoltz, Contract Specialist, (301) 394-3381, Patricia S. Silsby, Contracting Officer, (301) 394-3438. This procurement is for the purchase for one Electro Scan 2020 Environmental Scanning Electron Microscopy System. This is a sole source procurement to Phillips/Electro Scan, Wilmington, MA, since they are the only source who can supply an Environmental Scanning Electron Microscopy System to meet the Army's needs. The following are salient characteristics of the Environmental Scanning Electron Microscopy System: 1) Gaseous Secondary Electron Detector (GSED) capable of imaging throughout the entire environmental range of 0.1 to 50 Torr, and a Backscattered Electron Detector capable of imaging throughout the entire environmental range of 0.1 to 50 Torr; 2) dual pressure limiting aperture configuration with pumping between the two aperatures, providing the capability for operation of the microscope with the sample chamber held at pressures of greater than 10 Torr and up to 50 Torr under Nitrogen and Argon environments; 3) ability to supply water vapor into the specimen chamber as a controlled gas: 4) provides automatic switching between two gases during the course of an experiment which provides the capability to examine the response of advanced materials under changing conditions as may be encountered under actual materials operating conditions; 5) ability to operate with a beam gas path length of as small as 2 mm for both imaging and x-ray analysis purposes. All responsible sources may submit a bid or proposal which will be considered by the Agency. No telephone requests will be honored. See Numbered Note(s): 22. (0320)

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