XPIN®-XT X-ray Detector
The XPIN® detector is Moxtek’s best performing Si-PIN detector. XPIN detectors use a silicon PIN diode, multi-layer collimator, and thin DuraBeryllium® window, achieving great resolution and x-ray sensitivity. The XPIN preamp provides a low-noise signal output to an analog or digital pulse shaping amplifier. The XPINXT package is ideal for benchtop and portable applications where an integrated temperature controller is not required.
Applications
Portable / Benchtop XRF
■ RoHS / WEEE
■ Light element analysis
■ Alloy sorting/ Metallurgy
■ Scientific research
■ Nuclear monitoring
■ Quality control
■ Coating analysis
■ Plastic additive analysis
■ Soil analysis
■ OSHA compliance
■ Contamination sampling
■ Archeology
■ Art authentication
■ Forensic
■ Mobile crime lab
Standard Package Includes:
XPIN-XT Detector
■ Vacuum sealed detector module
■ DuraBeryllium® window
■ Ultra-low noise Moxtek JFET
■ Thick Si-PIN diode
■ Preamplifier with input/output connector
■ Optional detector mounts
Features
Benefits
Si-PIN diode
Low cost
Small, compact design
Close coupling between detector and source, portable
Two-stage thermoelectric cooler
Fast cooling without liquid nitrogen
Stable resolution
Minimal calibration maintenance
Thin DuraBeryllium windows
Light-element identification, corrosion resistant
Wide ambient temperature range
Industrial applications
Multi-layer collimator
Minimal stray peaks
Detector Specifications
Diode Active Area:
6mm2 or 13mm2
Diode Thickness:
625µm
Detector Window:
25µm thick DuraBeryllium®
Collimator Material:
Multilayer W/ Ni/ Cr/ Al
Energy Resolution:
6mm2: ≤ 190eV FWHM
13mm2: ≤ 230eV FWHM
Peak to background:
6mm2: 3600/ 1 @1keV (typical)
13mm2: 3000/ 1 @1keV (typical)
Test Conditions:
8µs shaping time, MXDPP-200, -35˚C, Fe55, 5.9 keV, 7000 CPS
Weight:
41 grams (with heat sink)10 grams (without heat sink)
Standard Warranty:
One year.
Preamp Specifications
Inputs
Detector Power:
+5V ±5% @ 16mA, -5V ±1% @ 20mA
Cooler Power:
0 to +3.5V max, 0.56A max
High Voltage Diode Bias:
+130 to +200 VDC
Outputs
Detector Output Signal:
Negative sawtooth ramp with voltage swing +2V to -2V, (pulse reset < 20µsec)
Charge Conversion Gain:
1.25mV/ keV typical
Temperature Control:
Manually controlled
XPIN-XT Preamp Pinout
Pin ID
Description
Set
1
TEC GND
GND
2
TEC +
+3.5 VDC Max
3
Detector Power
+5VDC
4
Detector Power
-5VDC
5
Detector GND
GND
6
Detector Signal
NA
7
Thermistor
NA
8
Detector GND
GND
9
Not Connected
-
10
High Voltage
+170 VDC