Fan; Excelon; Integrated Controller - Teledyne ProEM Series System Manual

Chapter 2
A feature of air-cooled ProEM cameras is software control of the fan On/Off status.
When vibration may affect results, the user can turn off the fan operation while making
sure that the coolant is circulating through the camera to maintain the CCD cooling
temperature.
The camera needs to have at least two (2) inches [50 mm] clearance around the vented
covers. The operating environment of the camera can be from 0 to 30°C with a 0 to
80% relative humidity (non-condensing.) For better performance the ambient
temperature should be at or less than 20°C. When operating above this temperature the
CCD temperature can begin to degrade. If the camera is inside an enclosure, the
enclosure needs to have unrestricted air flow to an open environment.
2.2.2.1

Fan

Air-cooled cameras include an internal fan. Its purpose is to:
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An internal Peltier device directly cools the cold finger on which the CCD is mounted.
Air drawn into the camera through the back of the camera removes the heat produced
by the Peltier device and then vents out through the slots on the side panels. By default,
the fan is always in operation and air-cooling of both the Peltier and the internal
electronics takes place continuously. In most cases, the low-vibration fan action does
not adversely affect the image. However, if vibration would reduce image quality and
the ProEM is also being cooled via a coolant circulator, the fan can be turned Off. For
the fan to function properly, free circulation must be maintained between the sides of
the camera and the laboratory atmosphere as described above.
2.2.3

eXcelon

eXcelon is a CCD/EMCCD sensor technology jointly developed by Teledyne Princeton
Instruments, Teledyne e2v, and Teledyne Photometrics
technology provide three significant benefits:
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2.2.4

Integrated Controller

The operation of the ProEM camera is regulated by its internal controller. These
electronics contain the circuitry required to accept input from the host computer and
software and convert it to appropriate control signals for the camera. These signals
include extensive capabilities for synchronizing the operation of the ProEM system with
the rest of your experiment. The controlling electronics also collect the analog signal
from the CCD, digitize it, and send it to the computer.
The ProEM allows you to specify read rate, binning parameters, and regions of interest
all under software control. For instance, if your experiment requires rapid image
acquisition, then the CCD's on-chip binning can be set to increase frame rates.
ProEM Camera System
Remove heat from the Peltier device that cools the CCD array, and
Cool the electronics.
Improved Sensitivity
Improved QE over broader wavelength region compared with back-illuminated
sensors;
Reduced Etaloning
Up to 10 times lower etaloning or unwanted fringes in near infrared (NIR) region
compared with standard back-illuminated CCDs;
Lower Dark Current
Comparable to back-illuminated CCDs, or 100 times lower than deep depletion
CCDs.
®
. Imaging CCDs using this
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