Gatan K2 Summit - Figure 1-3. Overview of Electron Detection Process in K2 Base and K2 Summit

12
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K2 Summit
e
1-3. Ove
rv
r
-Resolution
a
ch primary
e
e
electron’s l
a
s
olution bey
o
h
e K2 Summ
i
e
oretical info
h
e K2 sensor
h
ysical pixel
s
s
a result eac
h
h
e high-spee
d
a
mes per sec
o
h
e net effect i
y
quist infor
m
e
DQE (and
M
r
actically, thi
s
l
owing the re
s
and K2 Base
rv
iew of elec
t
Counting (
K
lectron’s sig
n
a
nding coord
i
o
nd the numb
e
i
t Supe
r
-Res
o
rmation limi
t
was carefull
y
s
ize.
h
incoming e
l
d
K2 Summit
o
nd) and find
s a quadrupli
n
m
ation limit to
M
TF).
s
means that
t
s
earcher to c
a
Direct
D
etect
i
t
ron detecti
o
K
2 Summit o
n
n
al cloud is a
n
i
nates with s
u
e
r of pixels i
n
o
lution mode
t
t
defined by t
h
y
designed su
c
l
ectron depos
i
electronics i
s
the center o
f
n
g of the eff
e
even higher
t
he field of vi
e
a
pture much
m
i
on Camera
U
o
n process i
n
n
ly):
n
alyzed in th
e
u
b-pixel accu
r
n
the sensor.
t
akes counti
n
h
e physical p
c
h that the P
S
its signal in
a
s
able to reco
g
f
that event w
i
e
ctive numbe
r
resolution),
a
ew can be in
c
m
ore data pe
r
U
ser's Guid
e
n
K2 Base a
n
e
Summit pr
o
r
acy. This te
c
n
g further an
d
ixel size.
S
F is slightly
a
small cluste
r
g
nize each el
e
i
th sub-pixel
p
r
of pixels (p
u
a
s well as a f
u
c
reased for t
h
r
image.
n
d K2 Sum
m
o
cessor to det
e
c
hnique exte
n
d
surpasses th
e
larger than t
h
r
of pixels.
e
ctron event
(
p
recision.
u
shing
b
eyon
u
rther improv
h
e same end r
e
m
it
e
rmine
n
ds the
e
h
e 5 μm
(
at 400
n
d the
ement of
e
solution