v10308u Hamamatsu Photonics, K.K.,, v10308u Datasheet - Page 13
v10308u
Manufacturer Part Number
v10308u
Description
Image Intensifiers
Manufacturer
Hamamatsu Photonics, K.K.,
Datasheet
1.V10308U.pdf
(20 pages)
GWIRING DIAGRAM
GWIRING DIAGRAM
Recommended Operation (Example)
Normal Operation
Supply Voltage (See Figure 12.)
NOTE: 1
Gate Operation
Figure 13: Gate Operation
Normally-OFF mode
The V
photocathode, so no image appears on the phosphor screen.
An image appears only when a gate pulse (V
the photocathode.
Photocathode – MCP-in (Vk)
MCP-in – MCP-out (V
MCP-out – Phosphor Screen (Vs)
Clamping method for using a vacuum chamber
with the V
There are two basic circuits for gate operation as shown in Figure 13 below. The supply voltages V
those in normal operation. Gate operation is controlled by changing the bias voltage (V
B
18 mm or
EXAMPLE V
The maximum supply voltage and recommended supply voltage
for the MCP-in and MCP-out are noted on the test data sheet
when the products is delivered. Please refer to the test data
sheet for these values.
0
is constantly applied as a reverse bias to the
PULSE
GENERATOR
GATE ON
PULSE
V
25 mm
B
G
O-RING
=+30 V
=-230 V
VACUUM
CHAMBER
PHOTOCATHODE
V
G
U-07, -08
MCP
LIGHT
C
)
1
R
....1 Stage MCP
...............................150 V to 200 V
2 Stages MCP 1000 V to 1800 V
3 Stages MCP 1500 V to 2700 V
VACUUM FLANGE
V
B
PHOTOELECTRONS
...................5000 V to 6000 V
V
INPUT WINDOW
FIBER OPTIC PLATE
MCP
V
MCP
U-07/-08
C, R: Chose the value in consideration of pulse width and repetition rate.
C: High voltage type.
G
) is applied to
500 V to 1000 V
V
S
TII C0062EA
PHOSPHOR
SCREEN
TII C0018EC
NOTE: A compact high-voltage power supply is available. (See page 15.)
The V
photocathode, so an image is always seen on the phosphor
screen during operation. The image disappears only when a
gate pulse (V
Figure 12: Normal Operation
Normally-ON mode
PHOTOCATHODE
Any electrode (for photocathode, MCP and phosphor screen) can
be connected to ground potential.
B
EXAMPLE V
150 V to 200 V
0
PULSE
GENERATOR
is constantly applied as a forward bias to the
GATE OFF
PULSE
G
) is applied to the photocathode.
V
B
G
PHOTOCATHODE
=-200 V
=+230 V
V
K
B
V
) between the photocathode and MCP-in.
G
1 Stage MCP 500 V to 1000 V
2 Stages MCP 1000 V to 1800 V
3 Stages MCP 1500 V to 2700V
MCP (1 TO 3 STAGE)
LIGHT
C
R
V
MCP
GREEN
V
PHOTOELECTRON
B
MCP
VIOLET
and Vs are the same as
MCP
V
V
MCP
S
1
PHOSPHOR
1
1
SCREEN
5000 V to 6000 V
BLACK
V
S
RED
PHOSPHOR
SCREEN
TII C0017ED
TII C0019EE
12