HAMAMATSU C2830 Datasheet
Streak Camera C2830
Streak cameras are high-speed light detectors
which enable direct measurement of light phenomena with unsurpassed temporal resolution.
They can simultaneously measure time, position (or wavelength) and light intensity, and
process the data in real-time using a dedicated
read-out system.
The Streak Camera C2830 can be equipped
with either of two plug-ins: a fast-speed (for
better than 10 ps resolution) or a slow-speed
(for better than 100 ps resolution) sweep unit. In
addition, C2830 has a 100 ns high-speed electronic shutter which eliminates unnecessary
incident light during the nonsweep period and
makes it possible to do sampling measurements on continuous phenomena.
FEATURES
●Designed for single sweep operations
●Covers a wide time range from 500 ps to 1 ms
(using both fast and slow sweep plug-in
units)
● Temporal resolution
Fast sweep unit: Better than 10 ps
Slow sweep unit: Better than 100 ps
●Simultaneous measuring time, position
(or wavelength) and light intensity
●High sensitivity (single photoelectron
detectability)
●High-speed gate function
Plug-in Sweep Units Available: Fast Sweep Unit
SYSTEM CONFIGURATION
Slow Sweep Unit
C2830 Main body
Sweep units
★ Built in main body.
Video output (Video CCD Camera)*
Output
format
Lens output
Cooled Digital Camera C4742-95
Camera head Control unit
OPERATING PRINCIPLE
The streak camera converts incident light into electrons and
performs a high-speed sweep (deflecting electrons from top to
bottom), enabling detection of the time variation of the incident
light intensity by converting these into different positions on the
screen. The figure below shows the operating principle of the
streak tube, which forms the heart of the streak camera.
The light pulse to be measured is focused onto the photocathode of the streak tube through the slit, where the photons are
converted into a number of electrons proportional to the intensity of the incident light. These electrons are accelerated and
conducted towards the phosphor screen, and a high-speed
voltage which is synchronized to the incident light is applied.
The electrons are swept at high speed from top to bottom and
are then multipled in the MCP (micro-channel plate), after which
they are bombarded against the phosphor screen of the streak
tube and converted to an optical image.
The optical image which appears on the phosphor screen is
called a streak image, and shows the intensity distribution of the
incident light, by which the positions of the electrons can be
Readout system
(HPD-TA)
Frame Grabber
Personal computer
(IBM PC/AT Compatible)
Streak Image
Analysis
Software
Streak Image
Analysis Systems
®
PC/AT
for IBM
determined in the perpendicular direction over the passage of
time. Using this method, the temporal intensity distribution of
the light being measured can be displayed as the spatial
intensity distribution on the phosphor screen.
APPLICATIONS
● Research involving free electron lasers and various
other types of pulsed lasers
● Plasma light emission, radiation, laser ablation, com-
bustion and explosions
● Fluorescence lifetime measurement, transient absorp-
tion measurement, time-resolved Raman spectroscopy
● Lidar, Thomson scattering, laser distance measurement
Optical
intensity
Time
Incident light
Sweep electrode
(where electrons
Trigger signal
Space
Slit
Photocathode
(photons → electrons)
Sweep circuit
Lens
Accelerating electrode
(where electrons
are accelerated)
are swept in the
direction from top
to bottom)
MCP
(which multiplies
electrons)
[Operating Principle of the Streak Tube]
Streak image
on phosphor screen
Phosphor screen
(electrons → light)
The intensity of the incident light
can be read from the brightness
of the phosphor screen, and the
time and space from the position
of the phosphor screen.
Space
Time
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