TRiCATT G
8Pages

Time-Resolved Intensified Camera Attachment The TRiCATT is a compact lens-coupled image intensifier for scientific and industrial applications that require 1) low-light level imaging, 2) ultra-short exposures through fast gating, and/or 3) frequency-domain imaging using lock-in detection. The TRiCATT features an 18 or 25 mm image intensifier with a highly efficient relay lens that can be matched to any CCD or CMOS camera, resulting in a flexible solution that can easily be integrated in an existing imaging system. The TRiCATT (Time Resolved intensified Camera Attachment) is the best choice for ultra-fast imaging in the time domain and/ or frequency domain. With a wide range of Gen II and Gen III image intensifiers, the TRiCATT offers high sensitivity down to single photon level and the optimal spectral bandwidth for your application. Different models covering a range in spectral sensitivity, phosphor, spatial resolution, gain, linearity, minimum gate width and gating frequency are available. For time-domain imaging the intensifier is equipped with a fast gate unit (TRiCATT G40n/G2n) that enables the intensifier to operate as an electro-optical shutter. The gate unit can be operated up to repetition rates of up to 2.5 MHz in burst. KEY FEATURES High resolution image intensifiers Gen II and Gen III image intensifiers offering the world’s highest resolution and sensitivity in the UV, visible or near infrared Small gate widths Gate width down to less than 3 ns (FWHM) with minimal jitter High gate repetition rates Up to 300 kHz/2.5 MHz burst Compact design For an easy fit to your imaging or spectroscopy setup Overexposure protection User-definable current limitation and optional shutter A series of different intensifier control units provide functionality ranging from analog gain control to full digital control including an internal trigger generator and programmable gate trains. For frequency-domain imaging the TRiCATT M supports gain modulation of 120 MHz (standard) and higher (external signal generator). Modulation is provided by a single-chip digital synthesizer to ensure an extremely low phase noise. APPLICATIONS Time-resolved imaging and spectroscopy Particle Image Velocimetry (PIV) Laser Induced Fluorescence (LIF) Time-gated luminescence Fluorescence Lifetime-Imaging Microscopy (FLIM) Förster Resonance Energy Transfer (FRET) Oxygen imaging Viscosity imaging Single-molecule imaging Bio- and Chemiluminescence Imaging Solar PV and LED characterization Combustion Time-gated Raman Plasma physics X-ray Imaging Easy coupling Flexible and efficient lens coupling to any CCD and CMOS camera (up to 500 fps) Specifications are subject to change without prior notice.

Image Intensifier Layout b a) light b) image intensifier c) relay lens d) camera e) gate unit f ) MCP power supply g) gate input (TTL) When the TRiCATT is mounted to a lens or microscope, the incoming light (a) is focused onto the entrance window of the image intensifier (b). The image intensifier converts the optical image to electrons at the photocathode, amplifies this electron image at the micro-channel plate (MCP), and re-converts the electrons into photons at the anode screen. At the output of the intensifier, a relay objective is mounted with a magnification that matches the...

The TRiCATT G can be used as an ultra-fast electro-optical shutter by gating the image intensifier. This eliminates motion blur and reduces the effective exposure time, thereby significantly widening the camera dynamic range. To prevent loss of intrascene dynamic range when using a shorter gate the user can set a higher MCP gain. The pulse width and frequency are user defined: any pulse width from DC down to a few nanoseconds can be applied. The intensifier gate generator is optionally available with programmable gate patterns. A frame storage facility allows storing many different...

intensifier manual gain control Camera Power supply Shutter control Intensifier manual gain control External gate delay generator Sync signal intensifier gain control Shutter control Intensifier gain control External gate delay generator Sync signal Power supply intensifier gate control Camera Sync signal Shutter control Intensifier gate control / generator* Power supply or external ( trigger source ) *The intensifier gate generator can also operate as master trigger source for camera, intensifier and other devices

Spectral response and phosphor decay time Q.E.=50% Q.E.=45% GaAsP enhanced red GaAs Modulation control unit The TRiCATT M provides highly accurate frequency-domain imaging with high-resolution gain modulated Gen II and Gen III image intensifiers. The TRiCATT M combines the image intensifier with a separate modulation control unit. The modulation control unit contains a single-chip dual channel DDS for generation and amplification of two RF modulation signals, one for the modulated lightsource or acousto-optic modulator (AOM) and one for the image intensifier (100 kHz – 120 MHz standard)....

MODULATION SPECIFICATION TRiCATT M Frequency range 100 kHz–120 MHz (standard) Up to at least 250 MHz with an external signal generator Frequency adjustment resolution Frequency deviation Phase adjustment range 0–360° in 1° steps, phase deviation < 0.01° Harmonics suppression High light level protection Integrated intensifier protection, switches off all DC and AC power Output 1. TRiCATT AC signal level AC signal after amplification Output 2. Lightsource Programmable options: a) Multi-LED AC signal level b) Modulated laser diode AC signal level c) AOM for CW laser AC signal level Half the...

DIMENSIONS AND OPERATING CONDITIONS TRiCATT 25 with 1:1 relay lens Supply voltage Operating temperature Operating humidity (non-condensing) TRiCATT 25 with 2:1 relay lens Supply voltage Operating temperature Operating humidity (non-condensing) TRiCATT 18 with 1:1 relay lens Supply voltage Operating temperature Operating humidity (non-condensing)

Mechanical shutter TheTRiCATTcan be supplied with an optional mechanical shut- ter for preventing damage to the image intensifier by high in- tensity stray light or direct laser light. It is further recommend- ed to close the shutter between measurements to increase the lifespan of the image intensifier. unchanged, so any F-mount objective can be used. The shut- ter comes with a power supply and a remote control. A timer can be used to automatically close the shutter after a predeter- mined time. The remote control has an ergonomic design and The shutter is encased in an aluminum housing...