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Detector System Component Description
45
Gain Selections
Synapse provides the end-user with 16-bit pixel processing capability that includes three
gain options selectable via SynerJY software as specified in Table IV below. For each
gain setting, typical system level transfer function numbers are provided in electrons per
ADC count based on the typical CCD amplifier response (uV / e-) for each sensor
offering.
Table IV.
Synapse
Gain Options Versus Sensor Offerings
CCD
Sensor
Pixel
Format
Pixel Size
Gain Setting
Typical System
Transfer
Function
(e- / ADC Cnt)
High Sensitivity
1.40
Best Dynamic Range
2.80
E2V
CCD30
1024 x 256 26 µm sq
High Light
18.70
High Sensitivity
1.06
Best Dynamic Range
2.12
E2V
CCD42
2048 X 512 13.5 µm sq
High Light
7.06
High Sensitivity
0.88
Best Dynamic Range
2.94
E2V
CCD77
512 X 512
24 µm sq
High Light
11.77
With the Synapse’s flexible gain setting capability, low light level applications would
take advantage of the High Sensitivity mode gain setting, while experiments involving
elevated photon flux levels would benefit the most from the High Light gain setting.
A brief discussion of each gain setting mode associated with the Synapse CCD Detection
system follows:
High Sensitivity Mode
For low light level applications, most end-users are willing to trade off dynamic range
performance for increased sensitivity so that even the smallest photonic occurrence can
be detected. Utilization of this High Sensitivity mode, from a statistical averaging point
of view, allows small variations in light level to be detected even on a 1 e- scale.
It should also be noted that operating in this high gain mode allows end-users with
medium light applications to acquire the same photon flux information two to three times
faster (depending on the selected CCD) when compared to using the Best Dynamic
Range gain setting mode.
Note:
Calibration data is provided with each Synapse
CCD detection system, defining the transfer
function in electrons/count for the incorporated
CCD sensor for each available gain setting.
Summary of Contents for JOBIN YVON SYNAPSE
Page 1: ...SYNAPSE CCD Detection System User Manual Part Number 81100 Revision 2...
Page 10: ...Preface x...
Page 14: ...System Description and Specifications 4...
Page 28: ...Detector System Installation 18...
Page 38: ...Initial Power up and Operation 28...
Page 48: ...Temperature Control 38...
Page 72: ...Appendix A Dimensional Drawings 62 Figure 17 Distance from Focal Plane to CCD Chip...
Page 73: ...Appendix A Dimensional Drawings 63 Figure 18 Synapse Power Supply Unit...
Page 74: ...Appendix A Dimensional Drawings 64...
Page 86: ...Appendix C Performing Routine Procedures with SynerJY 76...
Page 100: ...Appendix E Accessories 90...
Page 104: ...Warranty 94...
Page 113: ...103 Notes...
Page 114: ...104 Notes...