The AXR/PA210 or AXR/PA-230 alone, 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 picutres below. The customer either needs to provide custom heat-sinking and a custom enclosure for the AXR/PA210 or AXR/PA210, or order the housings shown below. 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 1. AXR Detector, PA-210 or PA-230, Housing.
|Pin 1||Cooler Return||Best to connect to ground at cooler power supply|
|Pin 2||Cooler Supply||Current = 350 mA maximum, voltage = 3.5 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 figure 3 below|
|Pin 8||Ground||Chassis Ground|
|Pin 10||High Voltage (HV)||Si-PIN (positive HV): +100 to +200 V @ 1 ľA (varies for different detector types) very stable <0.1% variation|
SDD (negative HV): -90 to -260 V @ 25 ľA (varies for different detector types) very stable <0.1% variation
Figure 2. PA-210/PA-230 Connection Diagram.
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.
Below is an example temperature controller circuit. It supplies 160 µA through the temperature diode. Therefore the Figure 3 calibration curve can be used. If this circuit is used to controll the PA210/PA230, do NOT install R19 on the PA210/PA230 since the current is set throught R1 on the temperature controller circuit. Connect Pin 7 on the PA210/PA230 to the input of the temperature controller circuit as shown in the schematic below.
Figure 4. Example temperature controller.
Figure 5. PA210 preamplifier, 18 mm Diameter X 40 mm long.
Figure 6. PA210 preamplifier mechanical dimensions.
Figure 7. PA-210 Housing. The PA-210 can be ordered with a housing that completely shields the detector and preamplifier and provides heat-sinking and mounting holes. This optional housing saves the OEM the design time of fabricating a custom enclosure.
Figure 8. AXR/PA-210 with housing mechanical dimensions.
PA-210 STP File.
Figure 9. PA230 flexible preamplifier with detector,
heat-sink, and mounting hardware.
Figure 10. PA230 flexible preamplifier with detector and heat-sink.
Figure 11. PA230 flexible preamplifier
with detector and heat-sink.
Figure 12. PA230 Mechanical dimensions.
Figure 13. PA-230 Housing. The PA-230 can be ordered with a housing that completely shields the detector and preamplifier and provides heat-sinking and mounting holes. This optional housing saves the OEM the design time of fabricating a custom enclosure.
FIgure 14. AXR/PA-230 with housing mechanical dimensions.
PA-230 STP File.
PA-210/PA-230 Specifications (PDF).
PA-210/PA-230 Specifications in Chinese (PDF).
Revised June 18, 2012