XPIN®-BT 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 XPIN-BT package is ideal for benchtop and portable applications requiring simple mounting, automatic temperature control, and metal shielding.
Portable/ Benchtop XRF
■ RoHS/WEEE
■ Light element analysis
■ Metallurgy
■ Alloy sorting
■ Scientific research
■ Nuclear monitoring
■ Quality control
■ Brand protection
■ Coating analysis
■ Plastic additive analysis
■ Soil analysis
■ OSHA compliance
■ Contamination sampling
■ Archeology
■ Art authentication
■ Forensic
■ Mobile crime labs
Standard Package Includes:
XPIN-BT Detector
■ Vacuum sealed detector module
■ DuraBeryllium® window
■ Ultra-low noise Moxtek JFET
■ Preamplifier with input/ output connectors
■ Thick SiPIN diode
■ Metal preamplifier housing
■ Integrated temperature controller
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
Internal temperature control
No external temperature control required
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:
140 grams (1.50” snout length)
Standard Warranty:
One year.
Preamp Specifications
Inputs
Detector Power:
+9V ± 5% @ 55mA, -9V ±5% @ 35mA
Temperature Control Power:
+5VDC
High Voltage Diode Bias:
+130 to +200VDC
Outputs
Detector Output Signal:
Negative sawtooth ramp with voltage swing +2V to -2V, (pulse reset < 20µsec)
Charge Conversion Gain:
4mV/ keV typical
Temperature Control:
Ready signal (open collector)
XPIN-BT Preamp Pinout
Power Connector (Lemo)
Pin ID
Description
Set
1
Ready Signal
Open collector
2
High Voltage
+170 VDC
3
Detector Power
-9 VDC
4
Detector Power
+9 VDC
5
Temperature GND
GND
6
Temp Control Power
+5 VDC
Shield
Detector Ground
GND
Signal Connector (BNC)
Contact
Description
Pin
Detector Signal
Shield
Signal GND
XPIN-BT Mechanical Drawing