AXAS-D
Digital system with VITUS SDD, reset type low-noise preamplifier, high performance DPP and all power supplies in compact housing.
Unique Features
Detector sizes from 7 mm² to 50 mm²
- Customized finger length available
Highly integrated design
- Filtering for SDD operating voltages
SDD operating temperature readout
Analog and digital outputs available
High performance Digital Pulse Processor DPP2
USB2.0 and RS232 interface
Peaking times from 0.1 µs to 24 µs
Energy Resolution
Figure 3: Energy Resolution with Input Count Rate acquired with KETEK DPP2: The energy resolution of the digital system is absolutely independent from the input count rate. The graph shows the dependency of the Full Width at half maximum with the incoming photons (input count rate) for different peaking times.
Technical Data
Operating temperature range | 0 to +50 °C | Storage temperature range | 0 to +50°C |
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Temperature monitor | Thermistor | Power supply | ±12 VDC; KETEK APS-L power supply 220/110 VAC |
Signal output | Low noise preamplifier | Signal form | Ramped reset type +1 V to -2 V; 5 mV/keV |
Output connector (analog) | LEMO FFS.00.250 | Digital interfaces | USB 2.0, RS232 (on request) |
Vacuum tightness | Optional; He leakage rate <10-6 mbar · l/s | Channel depth | 24 bit |
Number of channels | max. 8192 | ADC | 14 bit |
Peaking time range | 0.1 to 24 µs in 24 steps | Maximum read-out speed | 1 ms (@1024 channels) |
Software parameters | Digital gain, threshold, peaking time etc. | Clock frequency | 40 MHz |
Available Options
CUBE Class |
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VITUS SDD | Guaranteed FWHM [Mn Kα] @ 1 µs PT | Finger length [mm] | Vacuum-tightness of snout |
H7 | ≤ 133 eV | 50, 100 (standard), 160, 200 | Yes (optionally) |
H20 | ≤ 133 eV | 50, 100 (standard), 160, 200 | Yes (optionally) |
H30 | ≤ 133 eV | 50, 100 (standard), 160, 200 | Yes (optionally) |
H50 | ≤ 133 eV | 50, 100 (standard), 160, 200 | Yes (optionally) |
H7LE* | ≤ 133 eV | 50, 100 (standard), 160, 200 | Yes (optionally) |
H20LE* | ≤ 133 eV | 50, 100 (standard), 160, 200 | Yes (optionally) |