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Evaluating
your options is an important step in
any equipment acquisition process.
We’ve tried to make it easy for you
here to see that the LVEM5 hold
it’s own – and then some – when
compared to classical electron
microscopes.
Compare the
specs, size, mode availability, cost
and more right here….and if you need
any more information you can contact
us directly.
Comparison
Table
| |
LVEM 5 |
Conventional TEM |
|
Operating Modes |
TEM, STEM, SEM, ED |
TEM |
| |
|
(modes can be added) |
| |
|
|
|
Size |
2 ft by 2 ft |
7 ft by 8 ft |
| |
|
|
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Installation space |
|
|
|
location
|
desktop,
lab bench |
dedicated room |
|
electrical
|
standard
plug |
dedicated HV source |
|
cooling water
|
no
cooling water used |
water required : 0.2-0.6 Mpa |
|
compressed air
|
no compressed air used |
compressed air required:
'4-6 Atm |
| |
|
|
|
Weight |
154 lbs |
1,609 lbs |
| |
|
|
|
Operations |
Straightforward |
Complex |
| |
whole-group use |
dedicated operator |
| |
|
|
|
Cost |
5 -10
times < than a conventional
EM |
$500,000 - 2,000,000+ |
| |
|
|
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Section thickness |
20 - 30
nm. TEM |
80+ nm TEM |
| |
60 - 80
nm. TEM |
80+ nm. STEM |
| |
|
|
|
Sample in vacuum? |
yes |
yes |
| |
|
|
| |
|
|
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Natural/Inherent Contrast
(unstained samples) |
High |
Low |
| |
|
|
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Service Contract costs |
mean cost ~ $5,000 |
mean cost ~ $30,000 |
Compare SIZE:
Compare CONTRAST:
These two composite images compare classical TEM results on the
left with LVEM5 results on the
right.
microtubules comparison of Malaria compare
LVEM5 sample courtesy of Dr. David
Elliot, The University of Arizona
In the malaria schizont image on the left, the nuclei membranes
(yellow arrow) are weakly contrasted
but very clearly defined in the
LVEM5 image on the right.
Furthermore, developing
merozites
(red arrow) are also
clearly seen in the LVEM5 image but
are barely discernable under
classical TEM imaging. The LVEM5
results are unstained.
Images courtesy of Dr. David Martin,
Larry Drummy et al., The University
of Michigan
In these images results of imaging of microtubules are compared.
The classical TEM samples on the
left are stained, whereas the LVEM5
results are unstained. The LVEM5
results provide a true image of the
electron density or mass-thickness
of the microtubules.
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