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參數(shù)資料
| 型號： | C2830 |
| 廠商： | Hamamatsu Photonics |
| 英文描述： | Streak Camera |
| 中文描述： | 條紋相機 |
| 文件頁數(shù)： | 2/4頁 |
| 文件大?。?/td> | 86K |
| 代理商： | C2830 |
Plug-in Sweep Units Available: Fast Sweep Unit
Slow Sweep Unit
Video output (Video CCD Camera)*
Output
format
Cooled Digital Camera C4742-95
Camera head
Control unit
Frame Grabber
Streak Image
Analysis
Software
Streak Image
Analysis Systems
for IBM
PC/AT
Lens output
Personal computer
(IBM PC/AT Compatible)
C2830 Main body
Sweep units
Readout system
(HPD-TA)
SYSTEM CONFIGURATION
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 photocath-
ode of the streak tube through the slit, where the photons are
converted into a number of electrons proportional to the inten-
sity 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
Optical
intensity
Time
Space
Trigger signal
Slit
Lens
Incident light
Photocathode
(photons
electrons)
Phosphor screen
(electrons
light)
The intensity of the incident light
time and space from the position
MCP
(which multiplies
electrons)
Streak image
on phosphor screen
Time
Space
Sweep electrode
(where electrons
are swept in the
Sweep circuit
Ac(where electrons
are accelerated)
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
G
Research involving free electron lasers and various
other types of pulsed lasers
G
Plasma light emission, radiation, laser ablation, com-
bustion and explosions
G
Fluorescence lifetime measurement, transient absorp-
tion measurement, time-resolved Raman spectroscopy
G
Lidar, Thomson scattering, laser distance measurement
#
Built in main body.
[Operating Principle of the Streak Tube]
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