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Products / Imaging /Scientific CMOS Cameras /Imaging Intensifier Tube /Time-Resolved Image Intensifier /

Time-Resolved Image Intensifier

Overview Specification Photocathodes & Phosphor Related Products Order Now!

Time-Resolved Imgae Intensifier

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.

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.

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

● Easy coupling

Flexible and efficient lens coupling to any CCD and CMOS camera (up to 500 fps)

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

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 intensifier to the high-speed camera sensor.

For time-resolved imaging, a gate unit (e) is used together with the image intensifier to yield an electro-optical shutter. The gate unit either generates a high voltage pulse signal or follows an external TTL pulse. The pulse width is variable and follows a TTL input pulse over the range from less than 3 ns to DC at a repetition rate up to 300 kHz.

Configurations

Spectral Response and Phosphor Decay Time

Phosphor	Efficiency	Decay time to 10%	Decay time to 1%
P43 (standard)	20 photons/e-/kV	1.5 ms	3 ms
P46 (optional)	6 photons/e-/kV	500 ns	2000 ns

Model Guide

TRiCATT 25

Single-stage intensifier attachment

25 mm image intensifier Gated or modulated

F-mount and C-mount

TRiCATT 18

Single-stage intensifier attachment

18 mm image intensifier Gated or modulated

F-mount and C-mount

TRiCATT 18C

Compact single-stage intensifier attachment

18 mm image intensifier Gated or modulated

C-mount

Product specifications and Brochures

Product Brochure Link:

Image Intensifier Specification
	TRiCATT 18				TRiCATT 25
Image intensifier	Proximity-focused Gen II or Gen III (filmless)
Input window	S20: Quartz. S25, GaAs, GaAsP: Borosilicate glass
Input diameter	18mm				25 mm
Input window thickness	5.5 mm				6.0 mm
Effective area	Gen II: ø 17.5 mm, Gen III: 13.5x10 mm				Gen II: ø 24.5 mm, Gen III: 16x16 mm
Sensitivity and spectral range	TRiCATT G: see graph on p. 5 (top-left)
Min. gate width (FWHM)	TRiCATT G 40n: 40 ns TRiCATT G 2n: < 3 ns with Gen II, 5 ns with Gen III
Max. repetition frequency	TRiCATT G 40n: 100 kHz TRiCATT G 2n: 300 kHz, 2.5 MHz in burst mode

Photocathode	S20	S25	GaAs	GaAsP	S20	S25	GaAs	GaAsP
Luminous gain (max)* [lm/m2/lx]	14800	30000	40000	22000			33000	22000
Equivalent Background Input	0.006 e/px/s	0.008 e/px/s	2x10^-11 lm/cm²	3x10^-12 lm/cm²			2*10^-11 lm/cm²	3*10^-23 lm/cm²
Typical output resolution (lp/mm)
1:1 lens coupling	60		63		57		57
2:1 lens coupling	120		126		114		114
3:1 lens coupling	180		189		171		171
Lens coupling/output flange	1:1 C-mount 2:1 C-mount 1:1; 2:1; 3:1 F-mount on reques				1:1 F-Mount 2:1 F-mount 3:1 F-mount
Phosphor	P43 (P20, P46 on request)
Spatial resolution bare intensifier	Gen II: up to 69 lp/mm, Gen III: up to 64 lp/mm
* gain and EBI are specified for image intensifiers with P43 phosphor screen

Gating

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 table below summarizes the range of different intensifier control units available with the TRiCATT G. The gain-control models act as a power supply for the image intensifier, gate pulse trains are supplied externally. The gate-control model has its own pulse generator, giving the user direct control of the gate width and gate delay. The gate-generator models have an enhanced version of the pulse generator with lower jitter. These models allow the image intensifier to be synchronized to the exposure time of the camera by supplying a trigger signal. All models allow the gate frequency to be set by an external TTL signal.

Microsoft Windows control software is provided with all control-unit models, except the manual model. The software provides full user control of the pulse width and delay, gating mode, and intensifier gain. The control unit is connected to the computer via USB (RS-232 is optional). For integration in third party software a full command set is available.

The enhanced pulse generator of the gate-generator models has 4 independent programmable pulse outputs (one of which is used for gating) that provide precise timed TTL pulses with pulse widths down to less than 3 ns (FWHM).

Control Units and Gating Properties
Control Unit Model	No Control Unit	Intensifier Gain Control	Intensifier Gate Control	Intensifier Gate Generato
Gain control	Manual	√	√	√
Gate control	External TTL	External TTL	√	√
Anode current limiter	╳	√	√	√
Internal trigger generator	╳	╳	√	√
Programmable gate pattern	╳	╳	3 presets	Optional
Shutter control	╳	Optional	Optional	√
Additional TTL outputs	╳	╳	2	3

Gating properties
Width range			10 ns – 10 s	< 3 ns – 10 s
Resulting min pulse width (increments)			10 ns (10 ns)	< 3 ns (10 ps
Pulse repetition rate			< 10 MHz	< 16 MHz
Delay jitter (width)			< 250 ps RMS	< 35 ps (< 35 ps)
Insertion delay			20 ns	20 ns
Trigger input			√	Programmable trigger level, divider and bursts (m out of n triggers)

Modulation control unit

The TRiCATT M provides highly accurate frequency-domain imaging with high-resolution gain modulated Gen II and Gen IIIimage 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). The control unit further supplies the high-voltage for the image intensifier. A software SDK is provided for digital control of the gain, modulation and cathode bias voltages via an USB interface, emulating a standard RS-232 serial communications port.

Modulation frequencies below 100 kHz are supported by the optional gate unit and pulse generator. This also produces the synchronization signal for an external modulated light source or AOM.

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	1 kHz
Frequency deviation	100 ppm max.
Phase adjustment range	0–360° in 1° steps, phase deviation < 0.01°
Harmonics suppression	Better than 25 dB
High light level protection	Integrated intensifier protection, switches off all DC and AC power

Output 1. TRiCATT
AC signal level	Adjustable from –30 to 0 dBm
AC signal after amplification	50 Vpp max.

Output 2. Lightsource
Programmable options:
a) Multi-LED
AC signal level	Adjustable in 250 steps
DC current adjust	0–1000 mA, 12 bit
b) Modulated laser diode
AC signal level	0.00–1.00 V peak-peak
DC level adjust	0.00–1.00 V
c) AOM for CW laser
AC signal level	0.00–1.00 V peak-peak
Frequency	Half the frequency of output 2

Modulation input	Input for external modulation signal, 250mV (peak-peak), 50Ω
External trigger input	LVTTL (high frequency mode only), 50Ω
Trigger input	Available upon request
Monitor output	Output modulation signal monitor
Interface	USB 2.0

TRiCATT GM, as TRiCATT M plus:
Frequency range	0–100 kHz
Min. gate width (FWHM)	40 ns
Gate pulse width control	40 ns – 10 s, 10 ps resolution
Gate delay time control	0–10 s, 10 ps resolution
Dead time after trailing edge	100 ns
Pulse generator resolution ; jitter	10 ps ; < 35 ps
Insertion delay	45 ns
Trigger input	3.5 V – 5.0 V 50 Ω
Output A/B pulse width control	Fully programmable, 50 Ω source impedance
Output A/B delay control	Fully programmable, 50 Ω source impedance
Interface	USB 2.0

Mechanical Shutter

The TRiCATT can be supplied with an optional mechanical shutter for preventing damage to the image intensifier by high intensity stray light or direct laser light. It is further recommended to close the shutter between measurements to increase the lifespan of the image intensifier.

The shutter is encased in an aluminum housing with a standard F-mount input that replaces the original F-mount adapter of the TRiCATT. The back focal distance of the F-mount input is unchanged, so any F-mount objective can be used. The shutter comes with a power supply and a remote control. A timer can be used to automatically close the shutter after a predetermined time. The remote control has an ergonomic design and a large LCD screen.

The shutter can also be controlled by the Windows software of the TRiCATT or by an external TTL signal.

Shutter Specification
Shutter	UNIBLITZ VS35
Repetition Rate	DC to 5 Hz (20 Hz burst of maximal 4 s, with 1 minute between bursts)
Transfer time on opening/closing	13 ms
Minimal open time	20 ms
Lens mount	F-mount
Shutter control via	- Hand-held remote control with push-button and timer - External TTL signal
Delay-timer specification	1 s to 99 hrs in 1 s increments
TTL input	0–5 V, minimal pulse width of 20 ms

Photocathodes

The photocathode is the entrance of the image intensifier. This is where the incoming photons are converted to electrons. The quantum efficiency of the photocathode material specifies how efficient this conversion is for each wavelength.

Second generation image intensifiers

The photocathode of a second generation image intensifier can have a quantum efficiency of up to 25%.

S25 photocathodes are only available in the 18 mm diameter image intensifiers.

Typical QE

Typical QE.jpg

Typical quantum efficiency (%) of second generation image intensifiers as a function of wavelength (nm).

Second generation high QE image

intensifiers

The photocathode of a second generation high QE image intensifier can have a quantum efficiency of over 30%.

Please note that these image intensifiers are only available with a diameter of 18 mm.

Typical QE, 200 ns gate width

Typical QE_200 ns gate width.jpg

Typical quantum efficiency (%) of second generation high QE image intensifiers as a function of wavelength (nm).

Second generation fast-gated high QE image intensifiers

The photocathode of a second generation high QE image intensifier can have a quantum efficiency of over 25%.

Please note that these image intensifiers are only available with a diameter of 18 mm.

Typical QE, 3 ns gate width

Typical quantum efficiency (%) of second generation high QE image intensifiers as a function of wavelength (nm).

Third generation image intensifiers

The photocathode of a third generation image intensifier can have a quantum efficiency of up to 50%.

Typical QE

Third gen_Typical QE.jpg

Typical quantum efficiency (%) of third generation image intensifiers as a function of wavelength (nm).

Phosphors

Phosphor Decay Time

The anode screen of the image intensifier contains a layer of phosphorescent material. Upon impact of an electron, the phosphor screen will emit light. Depending on the type of phosphor, the intensity of the emitted light will decrease faster. The more efficient the phosphor, the slower its light intensity decays after excitation.

Our time-resolved cameras and camera attachments use P43 phosphor. The high luminous efficiency of this phosphor increases the light levels at the output of the image intensifier. This increases the quality of the resulting image.

Our high-speed cameras and camera attachments use P46 phosphor. This phosphor has a short decay time, so the light signal of consecutive frames doesn't get mixed up.

P47 phosphor is available on request, when even faster decay times are required.

PHOSPHOR	EMISSION	EFFICIENCY (E/KV)	DECAY TO 10%	DECAY TO 1%
P43	545 nm	20	1.5 ms	3 ms
P46	530 nm	6	500 ns	2000 ns
P47	400 nm	4	100 ns	400 ns

	Time-Resolved iCMOS	High-speed Gated iCMOS Camera		High-speed Fluorescence iCMOS Camera
	Time-Resolved iCMOS	540M/S	1000M/S	FLUO (1000 FPS)	FLUO (2000 FPS)

Framerate	162 fps	540 fps	1000 fps	1000 fps - 7500 fps	2000 fps - 6400 fps
Sensor Resolution	1920 x 1200 pixels	1696 x 1710 pixels	1280 x 1024 pixels	1280 x 1024 pixels	1920 x 1080 pixels*
Pixel size	5.86 x 5.86 µm	8 x 8 µm	6.6 x 6.6 µm	6.6 x 6.6 µm	10 x 10 µm
Photon gain (max.)	50000 lm/m^2/lx	11000 lm/m^2/lx	11000 lm/m^2/lx	36000 lm/m^2/lx	36000 lm/m^2/lx
Gating repetition rate	100 or 300Khz	100khz	100khz	100khz	100khz
Intensifier	18mm intensifier	Dual-stage intensifier	Dual-stage intensifier	Single-stage intensifier	Single-stage intensifier
Bit Depth	10 bit and 12 bit	8 bit	8 and 12 bit	8 and 12 bit	8 bit
Minimum exposure time	40 ns (3 ns optional)	40 ns (3 ns optional)	40 ns (3 ns optional)	40 ns (3 ns optional)	40 ns (3 ns optional)

	Time-Resolved Image Intensifier		High-speed Image Intensifier
	Model 18	Model 25	Model 18	Model 25

Input diameter	18mm	25mm	18mm	25mm
Effective area	Gen II: ø 17.5 mm, Gen III: 13.5x10 mm	Gen II: ø 24.5 mm, Gen III: 16x16 mm	Gen II: ø 17.5 mm, Gen III: 13.5x10 mm	Gen II: ø 24.5 mm, Gen III: 16x16 mm
Max. Repetition	100 kHz, 300 kHz or 1 MHz	100 kHz, 300 kHz or 1 MHz	100khz Or 300khz , 2.5 MHz burst mode	100khz Or 300khz, 2.5 MHz burst mode
Min. gate width	< 3ns - 40ns (FWHM)	< 3ns - 40ns (FWHM)	< 3ns - 40ns (FWHM)	< 3ns - 40ns (FWHM)
Frame Rate	Up to 500 fps	Up to 500 fps	up to 1,000,000 fps	up to 1,000,000 fps
Photon Gain	S20 : 14800, S25:30000 GaAs: 40000, GaAsp: 20000	S20 : 14800, S25:30000 GaAs: 40000, GaAsp: 20000	S20 : 40000, S25:30000 GaAs: 30000, GaAsp: 50000	S20 : 40000, S25:30000 GaAs: 30000, GaAsp: 50000

Microscop Cameras

Camera Category	Resolution	Pixel Size	FPS	Wavelength	Note
Microscope TE-Cooling USB3.0 CCD Camera	1.5MP to 12MP	6.45um to 3.1um	~30FPS	380nm - 650nm	IR Cut filter
Microscope USB3.0 CCD Camera	1.5MP to 12MP	6.45um to 3.1um	~30FPS	380nm - 650nm	IR Cut filter
Large Format TC-Cooling USB3.0 CMOS Camera	24MP and 61MP	5.94um and 3.76um	up to 190FPS	380nm -650nm	UV extended available
TE-Cooling USB3.0 CMOS Camera	10MP to 45MP	4.63um to 2.31um	up to 96FPS	380nm - 650nm	IR Cut filter
TE-Cooling USB3.0 CMOS Camera with External Trigger	0.5MP / 0.5MP	6.9um / 9um	20FPS	380nm - 650nm	External Trigger
Microscope USB3.0 CMOS Camera	0.5MP to 45MP	6.9um to 1.55um	upto 520FPS	380nm - 650nm	IR Cut filter
Microscope USB3.0 CMOS Camera UV Enhanced	1.3MP to 10MP	9.7um to 4.6um	upto 86FPS	200nm -1100nm
Microscope USB3.0 CMOS Camera wish ISP	1.5MP to 45MP	3.4um to 1.2um	upto 165FPS	380nm - 650nm	IR Cut filter / ISP
Eyepiece USB3.0 CMOS Camera	5MP	2um	30FPS	380nm - 650nm	IR Cut filter
HDMI Color CMOS Camera	2MP to 8MP		60FPS	380 - 1100nm
UV & NIR Enhanced CMOS Camera	4.2/8MP, 2.1/4.1MP		upto 200FPS	200-1100nm	UV or NIR Enhance

Scientific Cameras

Type	Model	Wavelength	Sensor Type	Resolution	Pixel size	Frame Rate	QE
X-RAY sCMOS Camera	XF95	80-1000eV	BSI sCMOS	2048 x 2048	22.5um or 13.3um	48	~100% full range
XUV/VUV Camera	maxCam	1-300nm	BSI/FSI CCD	1024 x 255	26um		Refer to brochures
High Speed sCMOS Camera	Dhyana 2100	200-1100nm	FSI CMOS / Mono	5220(H) x 4096(V)	4.5um x 4.5um	450fps@8bit	63%@520nm
High Speed sCMOS Camera	Dhyana 9KTDI	200-1100nm	BSI sCMOS TDI/Mono	9072	5um x 5um	510kHZ@8bit	82%@550nm,
Cooled High Sensitivity sCMOS Camera	95V2	200-1100nm	BSI sCMOS/Mono	2048(H) x 2048(V)	11μm x 11μm	48fps@12bit STD	95%@560nm
	400BSI V2	200-1100nm	BSI sCMOS	2048(H) x 2048(V)	6.5μm x 6.5μm	74fps@CL, 40fps@USB3.0	95%@600nm
	400BSI V3	200-1100nm	BSI sCMOS	2048(H) x 2048(V)	6.5μm x 6.5μm	100fps@CL, 40fps@USB3.0	95%@600nm
	400D	200-1100nm	FSI sCMOS/Mono	2048(H) x 2040(V)	6.5μm x 6.5μm	35fps@16bit	72%@595nm
	400DC	200-1100nm	FSI sCMOS/Color	2048(H) x 2044(V)	6.5μm x 6.5μm	22fps@8bit, 16fps@16bit
Large Sensor sCMOS cameras	6060BSI	200-1100nm	BSI sCMOS/Mono	6144(H) x 6144(V)	10μm x 10μm	26.4fps@12-bit STD	95%@580nm
	4040BSI	200-1100nm	BSI sCMOS/Mono	4096(H) x 4096(V)	9μm x 9μm	16.5fps@CL, 9.7fps@USB3.0	90%@550nm
	6060FSI	200-1100nm	FSI sCMOS/Mono	6144(H) x 6144(V)	10μm x 10μm	44fps@12-bit STD	72%@550nm
	4040FSI	200-1100nm	FSI sCMOS/Mono	4096(H) x 4096(V)	9μm x 9μm	16.5fps@CL, 9.7fps@USB3.0	74%@600nm
Compact Industry sCMOS Camera	401D	200-1100nm	FSI sCMOS/Mono	2048(H) x 2048(V)	6.5μm x 6.5μm	40fps@16bit, 45fps@8bit	72%@595nm
	401A-G	200-1100nm		2048(H) x 2048(V)	11μm x 11μm		58%@600nm
	401A-U	200-1100nm		2048(H) x 2048(V)	11μm x 11μm		58%@600nm
	201D	200-1100nm		2048(H) x 1152(V)	6.5μm x 6.5μm	70fps@16bit, 80fps@8bit	72%@595nm

Short-wave, Mid-wave, Long-wave Infrared Cameras

Product		Spectral Range	Rsolution	Cooling	Feature
SWIR Camera		400-1700nm	1.3MP, 0.3MP	uncooled
MIR Camera	Mid Infrared Detector	3.7um to 4.8um	0.08MP, 0.3MP,1.5MP	Cooled
	Mid Infrared Camera	3.7um to 4.8um	0.08MP, 0.3MP,1.5MP	Cooled
	Duel Band Detector	3.7 to 4.8um\|7.7 to 9.5um	320*256px	Cooled
LWIR Camera	Cooled LWIR Detector	7.7um to 9.4um	0.08MP, 0.3MP	Cooled
	Cooled LWIR Camera	7.7um to 9.4um	0.3MP	Cooled
	LWIR Thermography Camera	8 to 14um	0.08MP, 0.3MP,1.5MP	Uncooled	Broad Temperature Range
	Thermography Camera for Skin Screening	8 to 14um	320*256px	Uncooled	Body Temperature
	Thermal Imaging Cameras for Phone	8 to 14um	256*192px	Uncooled	For Smart Phone
	Compact Thermal Imaging Camera	8 to 14um	0.08MP, 0.3MP	Uncooled	For CCTV , Drone

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	Availability	Reference Price (USD)
TRiCATT-25 Time-resolved Image Intensifier, 25mm image intensifier, gated or modulated, F-mount and C-mount	4-6 Weeks	Request for quote
TRiCATT-18 Time-resolved Image Intensifier, 18mm image intensifier, gated or modulated, F-mount and C-mount	4-6 Weeks	Request for quote
TRiCATT-18C Time-resolved Image Intensifier, 18mm image intensifier, gated or modulated, C-mount	4-6 Weeks	Request for quote

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