- The SPECTRA 5011/5031 spectrosmeters have been developed to support companies and laboratories where radiation analysis is only one part of the work and therefore, the cost/time factor is a major aspect. But also professional radiological services will find a good solution for many purposes such as Alpha spectroscopy or Gamma spectroscopy with NaJ or HPGe detectors.
- The set up and handling of the device is very easy. This reduces start up times and avoids mistakes at the one hand, and at the other hand, also workers without special experience are able to operate the system.
- Variable detectors arrangements and a lot of accessories simplify the adaptation to a wide range of various applications. For example, only a view grasps are neccessary to create a lab like vacuum spectroscopy from an in situ screening system.
- The imput connector of the SPECTRA 50xx provides in addition the power supply and the bias voltage for the connected preamplifiers and shaping amplifiers (such as SARAS AMP01-03, MOD01-03, MOD01-04 and THERMO FHZ type NaJ probes).
- The imput signal is routed to a variable gain amplifier to fit the input signall to the subsequent ADC. The acquired spectrum is saved in the internal memory and can be transferred to a PC via the serial bus system. Therefore it is not neccessary to keep the PC connected during the whole measurement. A maximum of 15 SPECTRA units can be simultaneously connected to this bus-system.
Thông số kỹ thuật
- Bias voltage: +35 V pre-set (model 5011); +12 .. +40 V adjustable (model 5031)
- Sampled input range: 0 ..2 V
- Noise cut off: 50 mV pre-set (model 5011); 0 .. 200 mV adjustable (model 5031)
- Min. pulse rise time: 5µs (approx. 2,5 µs Gaussian shaping constant)
- Max. pulse rise time: 50µs (approx. 25 µs Gaussian shaping constant)
- Gain adjustment: manually, 1 to 10 linear
- Max. pulse frequency: 10 kS/s
- ADC resolution: 8 .. 12 bit
- Accuracy: ± 1,5 LSB
- System dead time: 72.5 µs/pulse fixed + adjustable delay time
- Spectra memory: 256, 512, 1024, 2048 or 4096 channels, 32 bit wide
- Sample timer resolution: 0.05 s
- Max. selectable sample interval: 768000 s (9 days)
- Min. time step: 1 s
- Timer accuracy: 5 ppm
- Power supply: internal battery or mains power adapter (5011) rear panel connector for 19” rack back plane (5031)
- Battery operation: > 10 hours (model 5011)
- Interface: serial CAN bus system (2 wires) with USB adapter
- Dimensions: 140 x 190 x 55 mm, 1.5 kg. incl. battery (5011) ; 14TE/3HE (model 5031)
- Software: SPECTRA Control for Windows (TM) 2000/XP/Vista