PURPOSE
The streak camera is intended for recording an
images and measuring the spatial-temporal parameters of fast runing processes
within soft X-ray range.
The camera should be operated within a vacuum chamber
containing a source of soft X-ray.
The camera can be applied to plasma physics, quantum
electronics, nuclear physics, X-ray spectroscopy, and so on.
CONSTRUCTION AND OPERATING PRINCIPLE
The main components of the streak camera are:
- PV-204X open X-ray image converter tube containing a changeable slit
from CsJ or Au photocathodes on parylen films or berylliym foil and two pair of deflection plates
- a micro-channel image intensifier AP-10
- a power supply unit
- a control unit with sweep and gate pulse generators
- a CCD readout unit
These components are assembled within the metal mini
case and can be updated. The camera is provided with sealing flange for attaching
it to vacuum chambers. The sealing flange is connected with the tube by means
of a bellow.
X-ray photons irradiate to the entrance aperture. It
forms the slit image of the phenomenon to be analyzed. The slit image is transferred
to photocathode of the streak tube, which in response to the incident photons
emits photoelectrons. The extremely high electric field near the photocathode
accelerates photoelectrons and reduces spread transit-times of it. The electron
optics focuses the emitted photoelectrons on the screen. The deflection plates
sweep the photoelectron image over screen of the streak tube, creating a linear
time base perpendicular to the spatial axis. The phosphor screen converts the
photoelectron pattern into a visible image to be coupled to the micro-channel
image intensifier. The image is conducted from the streak tube screen to the
photocathode of the micro-channel image intensifier by fiber optic coupling. The
intensified image is readout from intensifier screen by CCD TV camera (1392x1032
pixels, 12 bits ADC).
Main parameters
| Spectral sensitivity range |
typ |
50-10000 |
eV |
| Limiting temporal resolution |
typ |
10 |
Ps |
| Sweep duration |
min |
1.0 |
ns/full screen |
| Sweep nonlinearity |
max |
0.02 |
- |
| Delay time ( fastest range ) |
max |
35 |
ns |
| Repetition rate of control units |
max |
10 |
Hz |
| Intensifier gain ( λ = 480 nm ) |
max |
10000 |
W/W |
Useful input area of photocathode:
slit length
slit width |
typ
typ |
15
0.5 or 0.1 |
mm
mm |
| Dynamic spatial resolution |
min |
5 |
l.p./mm |
| Dimensions: length x width x height |
- |
500x96x190 |
mm |
| Weight |
max |
5.0 |
kg |
| Power consumption |
typ |
10 |
VA |
Operating conditions Delivery set
| Temperature |
- |
283 ÷308 |
K |
| Humidity |
max |
80 |
% |
| Pressure |
- |
95 ÷105 |
kPa | |
| K013 camera |
| " KLEN — 4M " software |
| Certificate |
| Package case | |
