Specifications
Table Of Contents
- iXon Ultra
- SAFETY AND WARNINGS INFORMATION
- SAFETY AND WARNINGS SYMBOLS
- MANUAL HANDLING
- SHIPPING AND STORAGE PRECAUTIONS
- SECTION 1 - INTRODUCTION TO IXON ULTRA HARDWARE
- 1.1 - TECHNICAL SUPPORT
- 1.2 - DISCLAIMER
- 1.3 - TRADEMARKS AND PATENT INFORMATION
- 1.4 - COMPONENTS
- 1.4.1 - Camera description
- 1.4.2 - Camera Power Supply Unit
- 1.4.3 - SOFTWARE
- 1.5 - SPECIFICATIONS
- 1.6 - ACCESSORIES
- 1.7 - SAFETY PRECAUTIONS AND MAINTENANCE
- 1.7.1 - Care of the camera
- 1.7.2 - Regular checks
- 1.7.3 - Annual electrical safety checks
- 1.7.4 - Replacement parts
- 1.7.5 - Fuse replacement
- 1.7.6 - Working with electronics
- 1.7.7 - Condensation
- 1.7.8 - Dew Point graph
- 1.7.9 - EM Gain ageing
- 1.7.10 - Minimizing particulate contamination
- 2.1 - INSTALLING THE HARDWARE
- 2.1.1- PC requirements
- 2.2 - INSTALLING ANDOR SOLIS SOFTWARE - WINDOWS O/S(XP/VISTA/SEVEN)
- 2.3 - NEW HARDWARE WIZARD
- 2.5 - WATER PIPE CONNECTORS
- 2.6 - MOUNTING POSTS
- 2.7 - COOLING
- 2.8 - START-UP DIALOG
- 3.1 - EMCCD OPERATION
- 3.1.1 - Structure of an EMCCD
- 3.1.2 - EM Gain & Read Noise
- 3.1.3 - EM Gain ON vs EM Gain OFF
- 3.1.4 - Multiplicative Noise Factor and Photon Counting
- 3.1.5 - EM Gain dependence and stability
- 3.1.6 - RealGain: Real and Linear gain
- 3.1.7 - EM Gain Ageing: What causes it and how is it countered?
- 3.1.8 - Gain and signal restrictions
- 3.1.9 - EMCAL
- 3.2 - COOLING
- 3.2.1 - Cooling options
- 3.2.2 - Heat generated in the EMCCD
- 3.2.3 Heatsink “hot side“ temperature
- 3.2.4 - Fan settings
- 3.3 - SENSOR READOUT OPTIMIZATION
- 3.3.1 - Sensor Pre-amp options
- 3.3.2 - Variable Horizontal Readout Rate
- 3.3.3 - Variable Vertical Shift Speed
- 3.3.4 - Output amplifier selection
- 3.3.5 - Baseline Optimization
- 3.3.5.1 - Baseline Clamp
- 3.3.6 - Binning and Sub Image options
- 3.4 - ACQUISITION OPTIONS
- 3.4.1 - Capture Sequence in Frame Transfer (FT) Mode
- 3.4.1.1 - Points to consider when using FT Mode
- 3.4.2 - Capture Sequence in Non-Frame Transfer Mode (NFT) with an FT EMCCD
- 3.4.2.1 - Points to note about using an FT EMCCD as a standard EMCCD
- 3.4.3 - Capture Sequence for Fast Kinetics (FK) with an FT EMCCD
- 3.4.3.1 - Points to consider when using Fast Kinetics mode
- 3.4.4 - Keep Clean Cycles
- 3.5 - TRIGGERING OPTIONS
- 3.5.1 - Triggering options in Frame Transfer (FT) mode
- 3.5.1.1 - Internal Triggering (FT)
- 3.5.1.2 - External Triggering (FT)
- 3.5.1.3 - External Exposure (FT)
- 3.5.2 - Triggering options in Non-Frame Transfer (NFT) mode
- 3.5.2.1 - Internal (NFT)
- 3.5.2.2 - External & Fast External (NFT)
- 3.5.2.3 - External Exposure (NFT)
- 3.5.2.4 - Software trigger (NFT)
- 3.5.3 - Trigger options in Fast Kinetics (FK) mode
- 3.5.3.1 - Internal (FK)
- 3.5.3.2 - External (FK)
- 3.5.3.3 - External Start (FK)
- 3.6 - SHUTTERING
- 3.7 - COUNT CONVERT
- 3.8 - OPTACQUIRE
- 3.8.1 - OptAcquire modes
- 3.9 - PUSHING FRAME RATES WITH CROPPED SENSOR MODE
- 3.9.1 - Cropped Sensor Mode Frame Rates
- 3.10 - ADVANCED PHOTON COUNTING IN EMCCDs
- 3.10.1 - Photon Counting by Post-Process
- 3.11 - SPURIOUS NOISE FILTER
- 4.1 - EMCCD TECHNOLOGY
- 4.1.1 - What is an Electron Multiplying CCD?
- 4.1.2 - Does EMCCD technology eliminate Read Out Noise?
- 4.1.3 - How sensitive are EMCCDs?
- 4.1.4 - What applications are EMCCDs suitable for?
- 4.1.5 - What is Andor Technology's experience with EMCCDs?
- 4.2 - EMCCD SENSOR
- 4.3 - VACUUM HOUSING
- 4.3.1 - Thermoelectric cooler
- 4.4 – USB 2.0 INTERFACE
- 4.5 - OUTGASSING
- 4.6 - EXTERNAL I/O
- 4.7 - SIGNAL DIAGRAMS
- 4.8 - CAMERALINK
- SECTION 5: TROUBLESHOOTING
- 5.1 - UNIT DOES NOT SWITCH ON
- 5.2 - SUPPORT DEVICE NOT RECOGNISED WHEN PLUGGED INTO PC
- 5.3 - TEMPERATURE TRIP ALARM SOUNDS (CONTINUOUS TONE)
- 5.4 - CAMERA HIGH FIFO FILL ALARM
- 5.5 - USE OF MULTIPLE HIGH SPEED USB 2.0 I/O ON ONE CAMERA
- A.1 - GLOSSARY
- A.1.1 - Readout sequence of an EMCCD
- A.1.2 - Accumulation
- A.1.3 - Acquisition
- A.1.4 - A/D Conversion
- A.1.5 - Background
- A.1.6 - Binning
- A.1.7 - Counts
- A.1.8 - Dark Signal
- A.1.9 - Detection Limit
- A.1.10 - Exposure Time
- A.1.11 - Frame Transfer
- A.1.12 - NOISE
- A.1.12.1 - Pixel Noise
- A.1.12.1.1 - Readout Noise
- A.1.12.1.2 - Shot Noise
- A.1.12.1.2.A - Shot Noise from the Signal
- A.1.12.1.2.B - Shot Noise from the Dark Signal
- A.1.12.1.3 - Calculation of Total Pixel Noise
- A.1.12.2 - Fixed Pattern Noise
- A.1.13 - Quantum Efficiency/Spectral Response
- A.1.14 - Readout
- A.1.15 - Saturation
- A.1.16 - Scans (Keep Clean and Acquired)
- A.1.17 - Shift Register
- A.1.18 - Signal To Noise Ratio
- B - MECHANICAL DIMENSIONS
- C - DECLARATION OF CONFORMITY
- D - HARDWARE AND SOFTWARE WARRANTY SERVICE
- D.1 - SERVICE DESCRIPTION
- D.2 - Access to Service
- D.3 - Hardware Remediation
- D.4 - Software Remediation
- E - THE WASTE ELECTRONIC AND ELECTRICAL EQUIPMENT REGULATIONS 2006 (WEEE)
Version 1.1 rev Jan 2013
Page 47
iXon Ultra
, Features and Functionality
3.1.8 - Gain and signal restrictions
Part of the measures taken to prevent premature ageing of the sensor has been to use temperature compensated real
gain limits, coupled with signal intensity feedback (after EM amplication). This ensures that the user is unable to apply
excessive gain and/or signal, any more than is necessary to render the read noise oor negligible for a given signal
intensity and readout speed. Secondly, when not actually acquiring data, as for example during “keep clean” cycles
or when outside a selected sub-image area, Andor EMCCDs have been internally congured to prevent any unwanted
signal entering the EM Gain register. Together, these measures ensure that the rate of EM Gain ageing is signicantly
reduced.
3.1.9 - EMCAL
TM
Andor has developed, in the iXon Ultra, a unique and patented method of user-initiated EM Gain self-recalibration -
EMCAL
TM
.
The reduction in EM Gain over time can be corrected by using the EMCAL
TM
self-recalibration process, which is very
easily initiated by the user. Please check the Andor website for the latest EMCAL
TM
routine.
This process uses the iXon Ultra in-built temperature compensated linear gain scales to reset the EM Gain calibration to
reect the true values requested on the software scale, giving the RealGain
TM
values. This means optimal signal to noise
ratio, maximum dynamic range and prolonged system longevity (See Figure 15).
Figure 15: Ageing prole of an Andor backlit EMCCD. Test conditions: 24/7 operation; 30 frames/sec; x90,000 electrons per pixel through gain
register; ~ 200,000 pixels illuminated