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94 PIXIS System Manual Version 2.C
Shutter
Typically, PIXIS cameras for imaging applications are shipped with an internal shutter.
PIXIS:512/1024: Internal, windowless, 1 in (25 mm) aperture, 8 ms open time, 8 ms
close time
PIXIS:2048: Internal, windowless, 1.8 in (45 mm) aperture, ~ 20 ms open time, ~48 ms
close time
Typically, PIXIS cameras for spectroscopy applications do not have an installed internal
shutter. An optional Princeton Instruments-supplied 25 or 45 mm external shutter can be
ordered if the camera has no internal shutter.
Camera
Cooling: Thermoelectric; air or circulating coolant
Coolant Ports: The inlet/outlet ports on the side of the camera allow you to connect the
camera to a CoolCUBE
II
with PIXIS-compatible hoses (PN 7567-0002). Use only the
hoses and circulator shipped with your system. Attaching any other hoses or
circulator voids the warranty
Gain: Software-selectable (high, medium, low)
Dimensions: See Appendix B.
Connectors:
EXT SYNC (MCX): 0 to +3.3 V logic level input to allow data acquisition to be
synchronized with external events. Trigger edge can be positive- or negative-
going as set in software. Synchronization and Timing Modes are discussed in
Chapter 6. MCX-to-BNC adapter cable supplied with system.
LOGIC OUT (MCX): 0 to +3.3 V logic level output for monitoring camera status.
Logic output is software-selectable as NOT SCAN, SHUTTER, NOT READY,
LOGIC 0, or LOGIC 1. Logic Out Control is discussed in Chapter 6. MCX-to-
BNC adapter cable supplied with system.
NOT SCAN {Not Reading Out}: Logic low when CCD is being read;
otherwise high.
SHUTTER {Shutter Open}: The output precisely brackets shutter-open
time (exclusive of shutter compensation) and can be used to control an
external shutter or to inhibit a pulser or timing generator.
NOT READY {Busy}: The output changes state on completion of the array
cleaning cycles that precede the first exposure. Initially high, it goes low to
mark the beginning of the first exposure. In free run operation, it remains low
until the system in halted. If a specific number of frames have been
programmed, it remains low until all have been taken, then returns high.
LOGIC 0 {Always Low) and LOGIC 1 {Always High}: Logic low and
logic high, respectively.
Shutter (LEMO): Optional. Used for connecting to a Princeton Instruments-supplied
external shutter. Cable not supplied.