Datasheet C2830 Datasheet (HAMAMATSU)

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

(temporal resolution: better than 10 ps)
(temporal resolution: better than 100 ps)

SPECIFICATIONS

1 C2830 Main Body

● Input Optics

Slit length: 0 to 8.0 mm
Slit width: 0 to 5 mm (5 µm accuracy)
Image magnification: 1:1
Spectral transmission: 200 nm to 850 nm
Effective aperture ratio: F/5

● Streak Tube N2803

Window material: UV glass
Photocathode: Multi-alkali (S-20)
Spectral response: 200 nm to 850 nm
Useful photocathode: 8.0 mm × 1.5 mm
Image magnification: 1 : 1.5
Light gain: more than 3 × 10
Phosphor screen: P-43
Useful screen area: 12 mm (space) × 15 mm (streak length) dia.

Spectral Response Characteristic of the Streak Tube

5

10

4

10

3

10

2

10

Radiant Sensitivity (µA/W)

1

10

200 400 600 800 1000

Wavelength (nm)

● Gate

Gating Method

MCP

MCP + photocathode

3

Gate Extinction

Ratio

3

min.

1 : 10

6

min.

1 : 10

Gate Time

100 ns to

continuous

100 ns to

continuous

2 Sweep Units

● Fast Sweep Unit M2547

Temporal resolution: better than 10 ps
Sweep time/full screen: 0.5, 1, 2, 5, 10 ns/15 mm
Trigger jitter: less than ±20 ps
Trigger delay: about 20 ns at the fastest range only
Streak trigger signal input

: +5 to +40 Vp-p/50 Ω
Monitor signal output: +3 Vp-p/50 Ω
Reset signal input: reset at 0 V
Gate trigger signal input: +2 to +10 Vp-p/50 Ω
Sweep repetition rate: 1 KHz max.
Dynamic range: >100 at the fastest range

● Slow Sweep Unit M2548

Temporal resolution: better than 100 ps
Sweep time/full screen: 10 ns to 1 ms/15 mm, 16 ranges
Trigger jitter: less than ±50 ps
Trigger delay: about 45 ns at the fastest range only
Streak trigger signal input

: +5 to +40 Vp-p/50 Ω
Monitor signal output: +3 Vp-p/50 Ω
Reset signal input: reset at 0 V
Gate trigger signal input: +2 to +10 Vp-p/50 Ω
Sweep repetition rate: 10 KHz max.
Dynamic range: >200 at the fastest range

3 Readout System*

● HPD-TA

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

Please consult with our sales office for more details.

®

computer is also available.

● 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

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 10 MHz to 200 MHz
Input level 0 to 15 dBm/50 Ω
Output signal level 3 Vp-p/50 Ω
Output frequency 1 Hz to 100 kHz (variable)

● 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 0 to 31.96 ps
Delay setting range 30, 60, 120, 250, 500 ps, 1, 2 4, 8, 16 ns
Minimum delay time Approx. 12 ns
Maximum input voltage

30 V
Power supply AC 85 to 250 V
External dimensions/weight

215 (W) × 350 (D) × 102 (H) mm/3.4 kg

DIMENSIONAL OUTLINE (Unit: mm)

● 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 400 to 1100 nm
Rise time 0.8 ns
Dimensions/weight

Power supply +45 V (battery)

Head: 100 (W) × 160 to 235 (H) × 50 (D) mm/400 g
Power supply unit: 100 (W) × 83(H) × 100 (D) mm/400 g

● Main Unit (approx. 13.5 kg)

403

(58.5)

The optional Output Optics A2866 is shown with dotted lines.

★ 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.

305 98

89

240

160

300

75

● Power Supply Unit

(approx. 6 kg)

209

(DEPTH: 350 mm)

• 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.

Homepage Address http://www.hamamatsu.com

HAMAMATSU PHOTONICS K.K., Systems Division
812 Joko-cho, Hamamatsu City, 431-3196, Japan, Telephone: [phone], Fax: [phone], E-mail:[email protected]

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Cat. No SSCS1036E03
AUG/99 CR
Created in Japan (PDF)

102

124.5

ISO 9001/ISO 13485

EN 46001

Certificate: 09 105 79045