Description
Specifications
Typical Specifications of PAS-01-4
| Number of Chambers | 4 Chambers for simultaneous acquisition of Alpha Spectrum Expandable to 8 chambers |
| Energy Range | 3 to 10 MeV with resolution of 5 keV per channel |
| PC/Laptop Interface | via 8 Port Ethernet Switch module to Ethernet Communication Port of PC/Laptop with TCP/IP protocol |
| Operating Parameter Control | Software Programmable HV, Gain, LLD, ULD by PC/Laptop |
| Vacuum Connection | 4 way Vacuum Manifold connected to Vacuum Pump |
| Chamber Vacuum | Digital Display < 1 mTorr to > 100 Torr on the module LCD and on PC /Laptop Screen |
| Electrical | 230 V, 50 Hz AC Mains Operation |
Typical Specifications of Alpha Spectrometer Module PAS-01
| Vacuum Chamber | |
| Construction | Solid Brass with Nickel plating for ease of decontamination High-performance O-ring seal |
| Internal Dimensions | 61mm wide x 74 mm deep x 40 mm high |
| Sample Trays | Solid Brass with Nickel plated Slide-in sample trays to accommodate samples of 13 mm to 51 mm dia. |
| Sample Spacing | From 4 mm (min) to 40 mm (max) in steps of 4mm |
| Control | Three-position PUMP, HOLD, VENT |
| Vacuum Sensor | |
| Type | Precision MEMS based sensor to measure vacuum inside individual vacuum chamber |
| Range | < 1 mTorr to > 100 Torr |
| Display | Digital display by System Software panel |
| Detector | |
| Type | Passivated lon-implanted Planar Silicon Detector |
| Active Area | 450 mm2 (standard) or 300 mm2 (user specified) |
| Resolution | 20 ke V in Vacuum for 5.5 MeV energy |
| System Resolution | better than 25 keV for Am241 |
| System Background | less than 1 CPH for above 3 MeV energy range |
| Detector Efficiency | @ 25 % for a detector source spacing of < 5 mm for Am241 |
| Operating Voltage | + 40 to +60 Volts |
| Low Noise Charge Sensitive Preamplifier | |
| Output | +100 mV for 5.15 MeV |
| Rise Time | < 100 nSec |
| Fall Time | 100 uS |
| Spectroscopy Amplifier | |
| Input | 0 to +200 mV |
| Output | 0 to +5 Volts internally fed to ADC |
| Shaping | 1 uS, Near Gaussian shape |
| Gain | System software programmable in 256 steps |
| High Voltage | |
| Output | 0 to +100 V System software programmable in 256 steps |
| HV ON/OFF | System Software settable |
| Ramp-up Time | 50 volts per minute |
| Wilkinson ADC | |
| Type | 11 Bit Wilkinson @ 100 MHz Clock frequency |
| Input pulse | 0to +5V |
| No. of channels | 2048 channels |
| Lower Level Discriminator | 0 to 5000 mV System software programmable in 256 steps |
| Upper Level Discriminator | 0 to 5000 mV System software programmable in 256 steps |
| Computer Interface | |
| Ethernet RJ45 Connector | CAT6 Ethernet cable to connect Spectrometer to PC/Laptop for Alpha Spectrum Acquisition, display and Processing |
* Dark current measurement will be introduced soon. Contact factory for confirmation
Due to continuous R&D, specifications and illustrations are likely to change without notice.





