PURPOSE
The nine-frame camera is a high-speed detector capable
of resolving fast events within the visible and near IR spectral range. It is
used to investigate the temporal variation of a single-shot or low-repetition-rate
two-dimensional optical signals in the nine-frame mode.
It can be applied in the next fields of science and
technology:
- ballistic investigation
- investigations of combustion processes, detonation, explosion, scattering
of ground and fields of fragments and so on
- shock waves physics
- laser physics
- nuclear physics
- plasma physics including thermonuclear synthesis
- electrical breakdowns and discharges including lightning, etc.
CONSTRUCTION AND OPERATING PRINCIPLE
The main components of the nine-frame camera are:
- an input optic system
- PIM-112 electron tube containing two pairs of deflection plates and a
micro-channel plate
- a power supply unit
- a control unit with step voltage and gate pulses generators unit
- a CCD readout device unit
These components are assembled within the metal mini
case and can be updated. The camera is coupled to a computer by an electricalor
fiber-optic cable. Frame and pause durations are set up by a computer.
The input optic system transfers a two-dimensional image of
the phenomenon to be analyzed onto the photocathode of the tube. A photoelectron
image is compressed and focused onto the locked micro-channel plate. Two pairs
of deflection plates are scanning the photoelectron image over the micro-channel
plate to the perpendicular axes, placing frames. At some moments the gate pulses
unlock the micro-channel plate. The photoelectron images one by one are intensified
and then transferred to the screen. The visible image of nine-frames is read-out
from screen by CCD TV camera (1392x1032 pixels, 12 bits ADC).
Main parameters
| Spectral sensitivity |
typ |
400-800 |
nm |
| Frame duration |
min
max |
0.1
102.4 |
μs
μs |
| Pause duration |
min
max |
0.1
102.4 |
μs
μs |
| Dynamic spatial resolution |
min |
7 |
l.p./mm |
| Repetition rate |
max |
7 |
Hz |
| Delay time of the first frame to the external
synch pulse |
max |
250 |
ns |
| Useful input area (frame size) |
typ |
8x8 |
mm ² |
| Conversion coefficient ( λ = 480 nm ) |
typ |
5000 |
W/W |
| Dimensions: length x width x height |
- |
450x90x180 |
mm |
| Weight |
max |
3.5 |
kg |
| Power consumption |
typ |
8.5 |
VA |
Operating conditions Delivery set
| Temperature |
- |
283 ÷308 |
K |
| Humidity |
max |
80 |
% |
| Pressure |
- |
95 ÷105 |
kPa | |
| K011 camera |
| " KLEN - 5M " software |
| Documentation |
| Package case | |
