Amptek X-123 사용자 설명서 - 페이지 11
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페이지 인쇄5.4. Amptek 25 mm
2
FAST SDD® Specifications
General
Detector Type
Silicon Drift Detector (SDD)
Detector Size
25 mm
Collimated Area
17 mm
Thickness
500 m
Collimator Type
Internal Multilayer
Preamplifier Type
CMOS reset type
Energy resolution @ 5.9 keV (
122 to 129 eV FWHM (guaranteed) at T
126 eV (typical) at 1.0 s
134 eV (typical) at 0.2 s
Energy resolution @ C K
Other Performance
Peak to background
> 20,000:1 (typical)
Signal risetime
< 35 ns
Maximum input
> 1 Mcps
count rate
Throughput
Determined
count rate stability
processor & its settings
Window Options
Be
1/3 mil (8 m) 1/2
mil (12.5 m)
1 m Parylene on each
C series (low energy)
90 nm Si
250 nm Al
30 mm
Grid: Hexagonal, 15 m thick
Si, 78% open area C2 is NOT
LIGHT TIGHT
Signal Output
Sensitivity
3.6 mV/keV
Gain stability
<20 ppm/
Polarity
Positive signal
Reset range
-0.05 to 2 V (typical)
Cooling
Cooling performance T > 85
X-123 User Manual
2
2
55
Fe)
=4.0 s
pk
: 45 eV (typical)
by
signal
C1
C2
N
40 nm Si
N
3
4
3
4
30 nm Al
2
30 mm
2
°C
°C
Cooler type
Two stage thermoelectric
Temp monitor
Diode
Power
HV Bias
-100 V to – 180V @ 25
Max cooling power 3.5 V / 0.45A
Total power
< 2 W (full cooling)
Other
Operating range
-35
degrades at elevated detector
temperatures.
Storage & shipping -40
90% RH noncondensing
RoHS
Compliant
Lifetime
Typical 5 to 10 years,
depending on use
Warranty Period
1 year
Preamplifier Options
Amptek's FAST SDD® is available with the XR-100
preamplifier, with the PA210 or PA230 OEM
preamplifiers, or as part of the X-123 and X-55.
Signal Processing Options
Amptek's FAST SDD® may be used with Amptek's
DP5 or DP5-X, or the PX5, or as part of the X-123 or
X-55.
Specification Notes
Performance listed here is measured at full cooling
(<220K).
The "peak to background ratio" is the ratio of counts
in the Mn Kα peak channel to the counts at 1 keV.
"Gain stability" refers to the change in sensitivity
when the preamp temperature changes but the
detector temperature is stable.
Operating Notes
Detector must be operated with an appropriate heat
sink.
The FAST SDD® is suitable for vacuum applications.
Amptek provides several system configurations.
11
A
o
C to +80°C Performance
o
C to +85°C, 10% to