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ページを印刷する5.3. Amptek SDD Specifications (now obsolete)
General
Detector Type
Silicon Drift Detector (SDD)
Detector Size
25 mm
Collimated Area
17 mm
Thickness
500 m
Collimator Type
Internal Multilayer
Preamplifier Type
JFET reset type
Energy resolution @ 5.9 keV (
125 to 135 eV FWHM (guaranteed) at T
128 eV at 4.0 s (typical)
147 eV at 1.0 s (typical)
Other Performance
Peak to background
> 20,000:1 (typical)
Signal risetime
< 60 ns
Maximum input
> 200 kcps
count rate
Determined
Throughput
count rate stability
processor & its settings
Window Options
Be
1/3 mil (8 m) 1/2 mil
(12.5 m)
Signal Output
Sensitivity
0.8 mV/keV
Gain stability
<20 ppm/
Polarity
Positive signal
Reset range
-5 to +5 V (typical)
Cooling
Cooling performance
T > 85
Cooler type
Two stage thermoelectric
Temp monitor
Diode
Power
HV Bias
-100V to – 180V @ 25 A
Max cooling power
3.5 V / 0.45A
X-123 User Manual
2
2
55
Fe)
=11.2 s
pk
by
signal
1 m Parylene on each
°C
°C
Total power
< 2 W (full cooling)
Other
Operating range
-35°C to +80°C Performance
degrades at elevated detector
temperatures.
Storage & shipping -40°C to +85°C, 10% to
90% RH noncondensing
RoHS
Compliant
Lifetime
Typical 5 to 10 years,
depending on use
Warranty Period
1 year
Preamplifier Options
Amptek's 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 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 SDD is suitable for vacuum applications.
Amptek provides several system configurations.
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