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COMMERCE BUSINESS DAILY ISSUE OF APRIL 22,1997 PSA#1829DOC; Mountain Administrative Support Center; Acquisition Management
Division; 325 Broadway MC3; Boulder, CO 66 -- SCANNING ELECTRON MICROSCOPE SOL 52RANB70C025 POC Procurement
Technicians, (303) 497-3221 or Fax (303) 497-3163 E-MAIL: NOAA; MASC
Acquisition Management, Joyce.J.Mills@noaa.gov. In the absence of other
qualified sources, it is the intent of the National Institute of
Standards and Technology, Electromagnetic Technology Division to
acquire a high resolution Scanning Electron Microscope (SEM), from JOEL
USA, Inc., 11 Dearborn Road, Peabody, MA 01960, under "other than full
and open competition procedures," pursuant to 41 USC 253(c)(1) -- only
one responsible source. The model number is JSM-6400 with options
SM-40101 (LBFS) LAB6, SM-46100 (PCD64) probe current detector, SM-43160
(LND) LN2 trap, and SM-47010 (EXT) RS232 ext. interface. This SEM is to
be used primarily as a base system/electron beam source for attachment
to a prototype x-ray detection system. The x-ray detector has been
designed to be completely interchangeable between laboratory
microscopes at the NIST laboratories located at Boulder, CO and
Gaithersburg, MD. This interchangeability is based on the fact that the
detector is moved between the various microscopes and used to gather
data at the different locations.The new SEM will become part of this
system and must be completely compatible with both an x-ray
detection/adiabatic demagnetization refrigeration (ADR) unit, an SEM
used in Gaithersburg, MD (JOEL JSM-6400), and an existing SEM (JOEL
JSM- 6400). The SEM chamber dimensions, port locations and sizes are of
utmost importance to the compatibility and portability of the NIST
x-ray detector/adiabatic demagnetization refrigerator. Due to design
constraints of the prototype x-ray detector/adiabatic demagnetization
refrigerator its geometrical configuration does not allow for use in
different sizes of SEM chambers or ports. This
interchangeability/compatibility between microscopes is the primary
basis for utilizing other than full and open competition. The chamber
size and location of the access port must be such that the distance
from the sensing portion of the detector (contained within an ADR
snout) to the center of the electron beam is 66 mm +/- 1 mm. This
distance allows for optimal use of the detector and an x-ray optic.
Chambers that are too small do not have room for the prototype
apparatus. Due to constraints on the length of the snout which contains
the x-ray detector, chambers that are too large cannot provide an
optimal distance from the electron beam to the detector. The access
port must be at least 5" wide, be easily machined to incorporate the
ADR's snout, and not have other detectors, wiring, or portions of the
specimen stage blocking the entrance into the SEM chamber. The port
opening should be opposite the EDS detector port. In addition, the
stage must be eucentric to keep the sample in focus while it is tilted.
The stage must be capable of being tilted at least 5 degrees in the
direction of the access port (opposite to the normal direction of tilt
in most SEM stages). To ensure an accurate take off angle of the
x-rays generated from the surface of the specimen by interaction with
the electron beam of the SEM, the prototype detector must be placed in
the same position relative to the electron beam and aeucentric
specimen stage to ensure high enough count levels to gain good data
with the x-ray detector. If the detector is mounted onto an SEM that
does not fit the required chamber dimensions and port locations/size
specifications, the take off angle will no longer match that previously
obtained. Whenever a new detector is characterized, it is extremely
important that testing parameters remain constant to ensure testing is
accurate and meaningful. Position of the prototype detector within
each SEM at each site must be the same. The acquisition is a commercial
item acquisition. Interested concerns must submit a written
qualification statement that clearly establishes the firm's capability
to meet the above requirements. This qualification statement shall be
submitted to the individual and office cited above within 15 days from
the publication date of this synopsis. This is not a formal
solicitation. See Note 22 except 45 days is changed to 15 days for
commercial items. (0108) Loren Data Corp. http://www.ld.com (SYN# 0280 19970422\66-0010.SOL)
66 - Instruments and Laboratory Equipment Index Page
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