The X-123CdTe is a complete X-Ray & Gamma-Ray Detector System in one small box that fits in your hand. Amptek's specialty is X-ray and gamma-ray spectrometers, which are small, low power, high performance, and simple to operate. The X-123CdTe combines in a single package Amptek's standard, high performance X-ray spectroscopy components: the XR100T-CdTe detector and preamplifier, DP5 digital pulse processor and MCA, and PC5 power supply. The result is a complete integrated system which can fit in your hand. In many commercially available systems, the preamplifier alone has more size, mass, and power than this integrated system. It requires only 2 connections to run: +5 VDC power and a standard RS-232 or USB bus. With the X-123CdTe, anyone can rapidly obtain high quality X-ray and gamma-ray spectra.
Features
- Compact integrated system
- Simple to Operate
- Small Size (2.7 x 3.9 x 1 in, 7 x 10 x 2.5 cm)
- Low Power (2.5 Watts)
- Light Weight (6.3 oz, 180 g)
- USB and RS232 Communication
Applications
- Medical X-Ray and Gamma Ray Detection,
Mammography, Radiology, Conventional X-Ray
- X-Ray Fluorescence
- Art and Archaeology
- Portable X-Ray and Gamma Ray Instruments
- X-Ray and Gamma Ray Research
- Teaching
- Nuclear Plant Monitoring
- Uranium and Plutonium Detection
Detector
- CdTe for X-Ray and Gamma-Ray detection
- 2-Stage thermoelectric cooler
- Area: 9 or 25 mm 2
- Thickness: 1 mm
Typical Performance
- Resolution at 122 keV <1.2 keV FWHM
- Optimum energy range: 5 keV to 150 keV
- Maximum count rate: Up to 2 x 10 5 cps
Detailed performance depends on detector and configuration, which can be optimized for special applications.
Specifications
| System Performance |
| Energy resolution @ 122 keV, 57 Co |
9 mm 2 : <1.2 keV FWHM, typical
25 mm 2 : <1.5 keV FWHM, typical |
| Energy Range |
5 to 150 keV. May be used at higher energy with lower efficiency, contact Amptek. |
| Maximum Count Rate |
Depends on peaking time. Recommended maxima for 50% dead time with pile-up-rejection enabled are shown below.
| DP5 Peaking Time (µs) |
2.4 |
6.4 |
25.6 |
| Shaping Time (µs) |
1.0 |
2.9 |
11.6 |
| Recommended max rate |
1.2 x 10 5 |
4.6 x 10 4 |
1.2 x 10 4 |
|
| Detector and Preamplifier |
| Detector Type |
CdTe (also available with Si-PIN or SDD ) |
| Detector Area |
9 mm 2 or 25 mm 2 |
| Detector Thickness |
1 mm |
| Be Window Thickness |
4 mil (100 µm) |
| Thermoelectric Cooler |
2-stage |
| Preamplifier Type |
Amptek custom design with current feedback. |
| Pulse Processor |
| Gain |
Combination of coarse and fine gain yields overall gain continuously adjustable from 0.84 to 127.5. |
| Coarse Gain |
Software selectable from 1.12 to 102 in 16 log steps. 1.12, 2.49, 3.78, 5.26, 6.56, 8.39, 10.10, 11.31, 14.56, 17.77, 22.42, 30.83, 38.18, 47.47, 66.26, 102.0 |
| Fine Gain |
Software selectable, 0.75 to 1.25, 10 bit resolution. |
| Full Scale |
1000 mV input pulse @ X1 gain |
| Gain Stability |
<20 ppm/°C (typical) |
| Pulse Shape |
Trapezoidal |
| Peaking Time |
24 software selectable peaking times between 0.8 and 102 µs, approximately log spaced, corresponding to semi-gaussian shaping times of 0.4 to 45 µs. |
| Dead Time |
Total dead time is 1.05 times the peaking time. No conversion time. |
| Fast Channel Pulse Pair Resolving Time |
120 ns |
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