horiba JOBIN YVON SYNAPSE, User Manual

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Detector System Component Description
44
Pixel Processing / Data Acquisition Modes of Operation
The sophisticated and compact design of the Synapse detector contains all of the
electronics necessary to read and control the CCD sensor. The detector’s high technology
architecture is targeted for optimum performance and high-speed spectral/image
acquisition and offers end-users two different modes of acquisition selectable via
software control:
•
20 kHz Slow Scan Acquisition Mode
•
1 MHz Fast Scan Acquisition Mode
A brief description follows for both pixel processing modes of operation.
20 kHz Slow Scan Acquisition Mode
For extreme spectroscopic applications requiring unprecedented sensitivity, Synapse
offers end-users the lowest noise and highest dynamic range possible by processing pixel
information at a 20 kHz ADC rate selectable thru the SynerJY application software.
HORIBA Jobin Yvon’s proprietary low noise 16-bit analog circuitry contributes
negligibly to the overall system noise, which is dominated by the CCD sensor’s read
noise typically in the 3-4 electron range.
1 MHz Fast Scan Acquisition Mode
In addition to the 20 kHz slow scan mode of acquisition, the Synapse platform also
provides end-users with the ability to process 16-bit pixel information at a 1 MHz rate.
This high-speed mode of operation is useful in quickly resolving focus and alignment
issues, as well as, acquiring data fast. Typical system noise for the 1 MHz scientific grade
CCDs currently being offered by HORIBA Jobin Yvon is better than 20 electrons rms,
and takes into account the system’s electronics noise and the read noise of the sensor
itself
.
Note:
Specific Synapse noise values are chip dependent
and will vary depending on the selected CCD
architecture and pixel size, as well as the
respective readout amplifier performance.