|
FEI Quanta 400
(ESEM) – completely digital in two dimensions (d=3.2nm) with integrated
Oxford INCA Energy
400 EDS w\GSR(Feature) (automated imaging, elemental and morphometric
analyses)
 The Quanta 400
with the integrated Oxford INCA EDS system provides a means by which
completely digital imaging can be performed on objects from low pressures
(10-6 torr to quite high pressures (20 torr) in hydrated
condition or in other gasses in which imaging can be performed. This
variable pressure instrument provides an opportunity to capture dynamic
imaging (as movies!) on specimens from the physical to the
biological. The EDS system includes almost every software module
marketed by Oxford including its automated modules, 'Automate' and
'Feature'. Automate permits automation of normal x-ray acquisition
methods including mixes of Analysis, Point & ID and Mapping with or
without 'Montage'. Feature provides morphometric and elemental
analyses based on grayscale identification of features of interest in
multiple and/or large specimens. 16 circular stubs with particulate
specimens finished in about 8 hours providing a complete data set of both
morphometric and elemental analyses for each particle detected by the
criteria established by the user. Particles can range from less than
10 to several hundred micrometers, and detection can extend to as low as 1
micrometer. 'Feature' and 'Automate' provide the capability to
perform large area elemental mapping (95 x 95mm) of fresh sawed geologic
or metallurgic specimens. The Gun Shot Residue (GSR) module
integrates nicely with the Forensic Concentration in the Chemistry
Department.
| 
