Hamamatsu C2830 Streak camera 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
Slow Sweep Unit
SYSTEM CONFIGURATION
Video output (Video CCD Camera)*
C2830 Main body
Readout system
(HPD-TA)
Output
format
Personal computer
(IBM PC/AT Compatible)
Cooled Digital Camera C4742-95
Camera head
Control unit
Lens output
Frame Grabber
Sweep units
Streak Image
Analysis
Software
Streak Image
Analysis Systems
for IBM® PC/AT
★ Built in main body.
OPERATING PRINCIPLE
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.
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
APPLICATIONS
●
●
●
●
Sweep circuit
Trigger signal
Research involving free electron lasers and various
other types of pulsed lasers
Plasma light emission, radiation, laser ablation, combustion and explosions
Fluorescence lifetime measurement, transient absorption measurement, time-resolved Raman spectroscopy
Lidar, Thomson scattering, laser distance measurement
Sweep electrode
(where electrons
are swept in the
direction from top
to bottom)
Streak image
on phosphor screen
Lens
Optical
intensity
Time
Space
Time
Slit
Incident light
Photocathode
(photons → electrons)
Accelerating electrode
(where electrons
are accelerated)
MCP
(which multiplies
electrons)
Phosphor screen
(electrons → light)
Space
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.
[Operating Principle of the Streak Tube]
(temporal resolution: better than 10 ps)
(temporal resolution: better than 100 ps)
SPECIFICATIONS
1 C2830 Main Body
Input Optics
2 Sweep Units
Fast Sweep Unit M2547
●
Slit length:
Slit width:
Image magnification:
Spectral transmission:
Effective aperture ratio:
●
●
0 to 8.0 mm
0 to 5 mm (5 µm accuracy)
1:1
200 nm to 850 nm
F/5
Streak Tube N2803
Window material:
Photocathode:
Spectral response:
Useful photocathode:
Image magnification:
Light gain:
Phosphor screen:
Useful screen area:
UV glass
Multi-alkali (S-20)
200 nm to 850 nm
8.0 mm × 1.5 mm
1 : 1.5
more than 3 × 103
P-43
12 mm (space) × 15 mm (streak length) dia.
103
●
Radiant Sensitivity (µA/W)
better than 100 ps
10 ns to 1 ms/15 mm, 16 ranges
less than ±50 ps
about 45 ns at the fastest range only
+5 to +40 Vp-p/50 Ω
+3 Vp-p/50 Ω
reset at 0 V
+2 to +10 Vp-p/50 Ω
10 KHz max.
>200 at the fastest range
3 Readout System*
HPD-TA
102
101
better than 10 ps
0.5, 1, 2, 5, 10 ns/15 mm
less than ±20 ps
about 20 ns at the fastest range only
+5 to +40 Vp-p/50 Ω
+3 Vp-p/50 Ω
reset at 0 V
+2 to +10 Vp-p/50 Ω
1 KHz max.
>100 at the fastest range
Slow Sweep Unit M2548
104
105
200
400
600
800
Wavelength (nm)
1000
Gate
Gating Method
Gate Extinction
Ratio
MCP
1 : 103 min.
MCP + photocathode
●
●
Temporal resolution:
Sweep time/full screen:
Trigger jitter:
Trigger delay:
Streak trigger signal input:
Monitor signal output:
Reset signal input:
Gate trigger signal input:
Sweep repetition rate:
Dynamic range:
Spectral Response Characteristic of the Streak Tube
●
Temporal resolution:
Sweep time/full screen:
Trigger jitter:
Trigger delay:
Streak trigger signal input:
Monitor signal output:
Reset signal input:
Gate trigger signal input:
Sweep repetition rate:
Dynamic range:
1 : 106 min.
Gate Time
100 ns to
continuous
100 ns to
continuous
Output Formats
• Lens output for Cooled Digital Camera C4742-95
Magnification ............................................................. 1 : 0.7
Effective F number ...................................................... F/2.0
F-mount
• Video output
Signal format ............................................. CCIR or RS-170
Coupling method .............................................. Fiber optics
Resolution ........................... 768 × 493 or 756 × 581 pixels
●
Line Voltage: 110/117/220/240 V AC, 50/60 Hz
●
Power Consumption: Approx. 80 VA
The HPD-TA (Temporal Analyzer) is a high-performance digital data
acquisition and control system specifically designed to read out images
from the Hamamatsu streak camera’s phosphor screen. It enables
precise, quantitative acquisition and pre-analysis of two dimensional
streak data that includes photon counting plus a full range of data
correction and calibration possibilities. It possible to select the best
camera for a given streak configuration and application. The camera is
connected to an IBM-compatible PC/AT via a frame grabber board that
can support real-time data transfer.
The entire system is controlled through a powerful but user-friendly
software application that runs on a Microsoft Windows platform.
®
* A read out system based on the
computer is also available.
Please consult with our sales office for more details.
Streak Camera C2830
C4547-01 Streak Trigger Unit
This creates gate trigger signals and streak trigger signals from
an external trigger signal, and supplies them to the single sweep
unit.
It is equipped with a divider function, enabling external trigger
signals with a higher frequency than that of the sweep repetition
frequency to be used.
●
Frequency band
Input level
Output signal level
Output frequency
10 MHz to 200 MHz
0 to 15 dBm/50 Ω
3 Vp-p/50 Ω
1 Hz to 100 kHz (variable)
C1083-01 PIN Photodiode
This device converts the incident light pulse into the streak
trigger signal for the single sweep unit (M2547 and M2548). A
slow repetition pulse laser is used as the applicable light source.
●
Spectral response
Rise time
Dimensions/weight
Power supply
400 to 1100 nm
0.8 ns
Head: 100 (W) × 160 to 235 (H) × 50 (D) mm/400 g
Power supply unit: 100 (W) × 83(H) × 100 (D) mm/400 g
+45 V (battery)
C1097-01 Delay Unit
This unit can be used to align the operation timing of the streak
camera with the target phenomenon.
* A GP-IB interface is available as an option. (C1097-04)
●
Variable delay range
Delay setting range
Minimum delay time
Maximum input voltage
Power supply
External dimensions/weight
0 to 31.96 ps
30, 60, 120, 250, 500 ps, 1, 2 4, 8, 16 ns
Approx. 12 ns
30 V
AC 85 to 250 V
215 (W) × 350 (D) × 102 (H) mm/3.4 kg
DIMENSIONAL OUTLINE (Unit: mm)
●
Main Unit (approx. 13.5 kg)
●
403
305
98
75
124.5
160
240
102
89
(58.5)
Power Supply Unit
(approx. 6 kg)
209
(DEPTH: 350 mm)
The optional Output Optics A2866 is shown with dotted lines.
300
★ IBM is a registered trademark of IBM Co.
is a registered trademark of Apple Computer, Inc.
★
★ Product and software package names noted in this documentation are trademarks or registered trademarks of their respective manufacturers.
• Subject to local technical requirements and regulations, availability of products included in this promotional material may vary.
Please consult with our sales office.
• Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies
or omissions.
Specifications and external appearance are subject to change without notice.
© 1999 Hamamatsu Photonics K.K.
ISO 9001/ISO 13485
EN 46001
Certificate: 09 105 79045
Homepage Address http://www.hamamatsu.com
HAMAMATSU PHOTONICS K.K., Systems Division
812 Joko-cho, Hamamatsu City, 431-3196, Japan, Telephone: (81)53-431-0124, Fax: (81)53-435-1574, E-mail:[email protected]
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Cat. No SSCS1036E03
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