Topaz-X is a compact, stand-alone digital Multi-Channel Analyzer (MCA), which is able to perform Pulse Height Analysis (PHA) of the signal produced by high resolution, Peltier-cooled semiconductor detectors, such as Silicon Drift Detectors (SDD) and Si-PIN diodes. Such detectors are commonly used in energy dispersive X-ray fluorescence (ED XRF) analysis or any X-ray spectrometry method.
The device data communication and power is via a standard USB port (mini USB-B) to a typical PC or notebook.
The MCA is provided with a basic software package that allows to control the device, and to acquire and visualize the energy spectrum. The software incorporates an advanced and easy-to-use “discovery” function that can be used to detect automatically all the BrightSpec MCAs in the neighborhood of the PC that are available for connection. Alternatively, the MCA can be provided with our full-featured and advance X-ray spectrometry software package - bAxil. Using bAxil the user can perform data acquisition and within the same software framework the spectrum analysis and elemental quantization.
A set of programming libraries is also offered, which makes the incorporation of the Topaz-X into existing radiation systems or setups very easy. The programming libraries are available for both MS Windows and Linux operating systems.
The Topaz-X is an advanced, fully digital, compact Multi-Channel Analyzer. This device is used to process the electronic pulses produced by a high resolution, electrically cooled silicon detector such as Silicon-drift detector (SDD) or Silicon PIN diode (Si-PIN). The MCA implements several advanced modes of data acquisition, such as: Pulse Height Analysis (PHA), Multi-channel scaling (MCS), LIST and Time-LIST mode (TLIST). For the latter, each recorded pulse will be stored not only with the pulse height information (energy), but with the arrival time stamp as well. In TLIST mode the event time resolution is up to 40 nano-seconds.
The Topaz-X design incorporates the latest advances in digital electronics. The core of the MCA is its 14-bit high-quality fast flash ADC running at 50 MHz, a 100 MHz DSP processor and a 200 MHz CPU. The MCA FPGA design implements powerful digital processing techniques and algorithms to better separate the useful signal from noise and to maximize performance under high count rate conditions. The device has a spectral memory size of up to 16,384 (16K) channels available for any acquisition mode (PHA, MCS, LIST or TLIST modes).
The Topaz-X transfers acquired data via an ultra-fast USB connection to the PC with data transfer rates of 480 Mbit/sec. The device can be powered via the USB connection or using an external low-noise AC/DC power supply, which is included in the delivered package.
The device can be controlled via our basic acquisition software (bMCA software), which can be freely downloaded from our WEB site. Alternatively, the MCA control is incorporated into our fully-featured X-ray spectrometry analysis software— bAxil. An attractive package price can be obtained when ordering the MCA together with bAxil software.
The MCA is cased into a rugged aluminum box of pocket sizes with one input connector (detector preamp signal), two input/output programmable connections and an interface connector (USB mini type B) to the PC. The device can be requested with mini-lemo or standard BNC connectors.
This device is also available as a separate PCB only, which makes it attractive to the OEM market. The programming libraries for Windows and Linux OS are available as well.
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