The AXR/PA-210 or AXR/PA-230, is for experts/OEMs in the field. Any Amptek detector can be used (Si-PIN, SDD, or CdTe). There are many options for this configuration as can be seen in the pictures below.
The customer needs to provide custom heat-sinking and a custom enclosure for the AXR/PA-210 or AXR/PA-230. If the PA210/PA230 Housings are used, additional heat-sinking to the Housings will be needed.
Additionally, the customer needs to provide several external power supplies, a shaping amplifier and MCA, or digital processor, and communication with the host computer.
Figure 2. PA-210/PA-230 Preamplifier Connection Diagram
|Pin 1||Cooler Return||Best to connect to ground at cooler power supply|
|Pin 2||Cooler Supply||Current = 350 mA maximum, voltage = 3.6 V maximum with <100 mV peak-to-peak noise|
|Pin 3||Preamp +5 V DC||+5 V DC, 15 mA with no more than 50 mV peak-to-peak noise|
|Pin 4||Preamp -5 V DC||-5 V DC, 15 mA with no more than 50 mV peak-to-peak noise|
|Pin 5||Ground (signal return)||Connect to signal return (processor/shaping amplifier ground)|
|Pin 6||Signal Out||Connect to input of shaping amplifier or digital processor|
|Pin 7||Temp||Temperature diode, see Temperature Diode Calibration Curve below|
|Pin 8||Ground||Chassis Ground|
|Pin 10||High Voltage (HV)||Si-PIN (positive HV): +100 to +200 V @ 1 µA (varies for different detector types) very stable <0.1% variation
SDD (negative HV): -85 to -200 V @ 25 µA (varies for different detector types) very stable <0.1% variation
Pin 3 to Pin 7 resistor (R19) is to supply current to the temperature diode.
Figure 3. Temperature Diode Calibration Curve for I = 160 µA
Figure 4. This example temperature control circuit supplies 160 uA through the temperature diode, corresponding to the Temperature Diode Calibration Curve for I=160 uA. If this circuit is used to control the PA-210/PA-230 preamp, DO NOT install R19 on the preamplifier since the current is set through R1 on the temperature controller circuit. Instead, connect Pin 7 on the PA-210/PA-230 to the input of the temperature controller circuit as shown in this schematic.
Figure 7. All dimensions in inches ±0.005.
Figure 8. Detector, PA210 or PA230 preamplifier, and heat sink assembly.
Figure 9. Detector, PA210 or PA230 preamplifier, and heat sink assembly.
10. AXR Detector with PA-210 and Housing, Mechanical Dimensions; all Measurements in Inches [mm]
11. PA-210 Mechanical Dimensions, All Measurements in Inches
12. AXR Detector with PA-230 and Housing, Mechanical Dimensions; all Measurements in Inches [mm]
13. PA-230 Mechanical Dimensions, All Measurements in Inches
AXR detector with PA-210 preamplifier
PA-230 Preamplifier with Heat Sink
PA-230 Optional Configurations
PA-210/230 with 1.5" Extender
PA-230 Flexible Preamplifier with Detector, Heat Sink, and Mounting Hardware.