The XR-100T-CdTe represents a breakthrough in x-ray detector technology by providing "off-the-shelf" performance previously available only from expensive cryogenically cooled systems.
Features
- CdTe Diode Detector
- Thermoelectric (Peltier) Cooler
- Cooled FET
- Temperature Monitor
- Beryllium Window
- Hermetic Package (TO-8)
Applications
- Medical X-Ray and Gamma Ray Detection: Mamography and Radiology
- Characterization of x-ray tubes: direct output spectrum, current stability
- 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
Model XR-100T-CdTe is a high performance x-ray and gamma ray detector, preamplifier, and cooler system using a 3 x 3 x 1 mm (or 5x5x1) Cadmium Telluride (CdTe) diode detector mounted on a two-stage thermoelectric cooler. Also on the cooler are the input FET feedback components to the charge sensitive preamplifier. The internal components are kept at approximately -30 ºC and can be monitored by an internal temperature sensor. The hermetic TO-8 package of the detector has a light tight, vacuum tight 4 mil (100 µm) Beryllium window.
All the critical connections between the detector and the preamplifier have been made internally to the XR-100T-CdTe to ensure quick, first time operation by the user. The XR-100T-CdTe is provided complete with BNC connectors and power cable.
Specifications
| General |
| Detector type |
Cadmium Telluride (CdTe) Diode |
| Detector areas |
3 x 3 mm (9 mm 2 ), 5 x 5 mm (25 mm 2 ) |
| Detector thickness |
1 mm |
| Energy resolution @ 122 keV, 57 Co |
9 mm 2 : <1.2 keV FWHM, typical
25 mm 2 : <1.5 keV FWHM, typical |
| Dark counts |
<5 x 10 -3 counts/sec @ 10 keV < E < 1 MeV |
| Detector window |
Be, 4 mil thick (100 µm) |
| Preamplifier |
Charge Sensitive, with Current Divider Feedback |
| Case Size |
3.00 x 1.75 x 1.13 in (7.6 x 4.4 x 2.9 cm) |
| Case weight |
4.4 ounces (125 g) |
| Total power |
Less than 1 watt |
| Operation conditions |
0°C to +40°C |
| Storage and Shipping |
Long term storage: 10+ years in dry environment
Typical Storage and Shipping: -20°C to +50°C, 10 to 90% humidity non condensing |
| Certification |
TUV Certification
Certificate #: CU 72072412 01
Tested to: UL 61010-1: 2004 R7 .05
CAN/CSA-C22.2 61010-1: 2004 |
Inputs |
| Preamp power |
±8 volts @ 25 mA |
| Detector power |
+500 volts @ 1 µA |
Cooler power
|
Current = 350 mA maximum
Voltage = 4 V maximum |
Outputs |
Preamplifier:
Sensitivity
Polarity |
0.82 mV/keV
Negative signal out (1 kohm max. load) |
Temperature monitor:
Sensitivity |
PX5: direct reading in K through software. |
Options
- Other detector sizes (5x5x1mm) are available on special order
- Other Be window thicknesses available on special order
- Components for vacuum applications
- Collimator Kit for high flux applications
- Available in X-123CdTe configuration
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