Specifications

Table Of Contents
Version 1.1 rev Jan 2013
Page 49
iXon Ultra
, Features and Functionality
NOTE: The OptAcquire “Fastest Frame Rate” setting in Solis uses the fastest vertical shift speed and maximum
vertical clock amplitude boost. This limits the minimum EMCCD cooling achievable.
3.2.3 Heatsink “hot side“ temperature
As detailed in Section 3.2, the minimum sensor cooling depends on the temperature of the heat sink. The maximum
EMCCD cooling will be achieved when the “hot side” is the coldest possible. This is usually achieved with water cooling.
Water cooling maintains the “hot side” at the water temperature irrespective of ambient air temperature.
3.2.4 - Fan settings
The speed and operation of the cooling fan can also be software-controlled, which is a pre-requisite when working with
experimental congurations that are extremely sensitive to vibration. The vast majority of applications, including optical
microscopy, can be used with the default highest fan speed, since the vibrations from the fan are minimal. However,
some applications can be extremely sensitive to even the smallest of vibrations (such as when combining an optical
set-up with patch clamp electrophysiology or atomic force microscopy) and it can be useful to either select a slower fan
speed, or to temporarily turn off the fan altogether, for the duration of the acquisition.
As the fan is used to dissipate heat generated from the TE cooler to achieve EMCCD cooling, switching it off will require
a higher EMCCD temperature to be chosen.
NOTE: It is recommended to achieve a stable cooling temperature after the fan has been switched off, otherwise
transient dark current behaviour will be seen.
3.3 - SENSOR READOUT OPTIMIZATION
To allow the camera to be optimized for the widest range of applications, it is important to have exibility in the readout
options available. Some of these include:
• Cooling(pleaseseeSection 3.2 on page 48)
• Sensorpre-ampsettings
• Variablehorizontalreadoutrate
• Variableverticalshiftspeed
• Outputamplierselection
• Baselinesettings
• BinningandSubImagesettings
These options and an explanation of how to optimize them are explained on pages 48 - 56.