PRELIMINARY DATA
MAR. 1998
FEATURES
q
High Photocathode Sensitivity
V7090-60 .... GaAs (Cs) Photocathode
V7090-61 .... Blue-enhanced GaAs (Cs) Photocathode
q
Gating Operation
...... 5 ns (Gate Width)
q
High Image Quality
(Multi-boundary deviation and Multi-to-multi deviation
free)
q
No Image Distortion
q
Compact and Lightweight
GENERATION
3
18mm DIA. PHOTOCATHODE
PROXIMITY FOCUSED
IMAGE INTENSIFIER
V7090 SERIES
Figure 1: Typical Spectral Response
10
3
Tll B0074EB
V7090-60
CATHODE RADIANT SENSITIVITY (mA/W)
QUANTUM EFFICIENCY (%)
V7090-61
10
2
APPLICATIONS
q
Shutter Camera
q
Low-light-level Imaging
(with image sensors such as CCD, vidicon, etc.)
Microscope, Low-light-level TV, etc.
q
Low-light-level Multichannel Detector
(with linear photodiode array, etc.)
Emission spectroscopy, etc.
10
1
10
0
10
-1
300
RADIANT SENSITIVITY
QUANTUM EFFICIENCY
400
500
600
700
800
900
1000
WAVELENGTH (nm)
SPECIFICATION
GENERAL
Parameter
Spectral Response
Wavelength of Maximum Response
Photocathode
Material
Minimum Effective Area
Material
Input Window
Thickness
Index of Refraction at 589.3nm
MCP
Phosphor Screen
Output Window Material
Case Material
Lead Wire Cover Material
Weight
Material
Minimum Effective Area
V7090U-60-G130
520 to 920
830
GaAs (Cs)
V7090U-61-G130
370 to 920
830
Blue-enhanced GaAs (Cs)
Unit
nm
nm
–
mm
–
mm
–
–
–
mm
–
–
–
g
φ
18
Borosilicate Glass
5.5
1.487
1 stage
P-43
φ
18
Fiber optic plate
Poly Oxy Methylene (POM)
Teflon
80
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 are subjected to change without notice. No patent rights are granted to any of the circuits described herein. © 1998 Hamamatsu Photonics K. K.
PROXIMITY FOCUSED IMAGE INTENSIFIER V7090 SERIES
SELECTION GUIDE BY SUFFIX NUMBER
V7090 A – B – C D E F
v
v
v
v
v
v
A:
B:
C:
D:
E:
F:
B
Suffix No.
- 60
- 61
Potting Form
Photocathode
Gate Operation
Stage of MCP
Phosphor screen
Output Window
Photocathode
GaAs (Cs)
Blue-enhanced
GaAs (Cs)
C
Suffix No.
N
G
E
Suffix No.
0
1
3
4
6
7
Gate Type
Non-Gate
Gateable (5ns)
D
Suffix No.
1
2
3
F
Suffix No.
0
Stage of MCP
1
2
3
A
Suffix No.
U
D
Potting Form
See Figure 7
Phosphor Screen
P-20
P-11
P-43
P-24
P-46
P-47
Output Window
Fiber Optic Plate
Fiber Optic Plate
1
W/NESA
5
2
Borosilicate Glass
5
With Transparent Conductive
Coating
RATINGS
Parameter
Photocathode and MCP-In
1 stage MCP
Supply Voltage
MCP-In and MCP-Out
2 stage MCP
3 stage MCP
MCP-Out and Phosphor Screen
Storage
Temperature
Operating
Shock
Value
750 to 800
500 to 900
1000 to 1800
1500 to 2700
6000
–
–
–
Maximum Rating
830
910
1820
2730
6100
-55 to +65
-20 to +40
12
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
°C
°C
°C/min
CHARACTERISTICS
Parameter
Luminous
a
at 450nm
Photocatohode
Sensitivity
Radiant
Sensitivity
(Quantum
Efficiency)
at 550nm
at 600nm
at 700nm
at 830nm
at 900nm
Luminous
Gain
b
Light Gain
Radiant
Emittance
Gain
c d
EBI
e
Luminous
Radiant
d
1 stage MCP
Limiting Resolution
f
V7090-60
Min.
1000
–
–
–
–
–
–
2.0
×
10
4.0
×
10
–
–
–
–
–
36
28
25
5
4
6
V7090-61
Max.
–
–
–
–
–
–
–
–
–
–
–
–
–
5.0
×
10
–
–
–
–
-11
Typ.
1300
–
14 (3.2)
79 (16.3)
150 (26.6)
161 (24.0)
11 (1.5)
4.0
×
10
1.0
×
10
4
7
Min.
800
–
–
–
–
–
–
1.0
×
10
3.5
×
10
–
–
–
–
–
36
28
25
5
4
6
Typ.
1000
54 (14.9)
110 (24.8)
123 (25.4)
143 (25.3)
152 (22.7)
11 (1.5)
3.0
×
10
8.0
×
10
9.4
×
10
4
6
Max.
–
–
–
–
–
–
–
–
–
–
–
–
–
5.0
×
10
-11
1.0
×
10
-13
–
–
–
–
Unit
µA/lm
mA/W (%)
1 stage MCP
2 stage MCP
3 stage MCP
1 stage MCP
2 stage MCP
3 stage MCP
lm/m
2
/lx
g
4.0
×
10
7
1.0
×
10
8
1.0
×
10
4
3.5
×
10
7
8.0
×
10
7
3
2.5
×
10
6
2.5
×
10
7
2.0
×
10
40
32
28
–
-11
2.3
×
10
6
2.3
×
10
7
2.0
×
10
40
32
28
–
-11
W/m
2
/W/m
2
lm/cm
2
W/cm
2
4.0
×
10
-14
1.0
×
10
-13
4.0
×
10
-14
2 stage MCP
3 stage MCP
Lp/mm
Gate Time (Gate Width)
ns
NOTE:
a
The light source is a tungsten filament lamp operated at a distribution
temperature of 2856K. Supply voltage is 800 volts between the
photocathode and all other electrodes (MCP-In, MCP-Out, Phosphor
Screen) connected together as anode.
b
The luminous gain has relation to the screen luminance Lo (cd/m
2
) and
the illuminance Ei (lx) incident on the photocathode, and expressed by:
Luminous Gain =
π
•
Lo
Ei
c
The ratio of the phosphor screen radiant emittance in watts per square
meter (W/m
2
) to the irradiance (W/cm
2
) on the photocathode. The
supply voltages are the same as
b.
d
The value at the wavelength of peak response.
e
The inherent background noise of an image intensifier is normally
specified as the input illuminance (or irradiance) required to produce a
luminous emittance from the phosphor screen, equal to that obtained
when the input illuminance is zero. This indicates the lower limit of
detectable illuminance of an image intensifier.
f
The measure of the ability to detect while and black stripes in an image
formed at the photocathode, in terms of line pairs (Lp) (one black and
one white stripe) per millimeter. This is the value at an MTF (Modulation
Transfer Function) of 5%.
g
1 lm/m
2
=0.0929 ft-L
1 lx =0.0929 ft-c
1 lm/m
2
/lx =1 ft-L/ft-c
The supply voltages are as follows.
Photocathode and MCP-In .............. 800 Vdc
MCP-In and MCP-Out
(1 stage MCP) .... 900 Vdc
(2 stage MCP) .... 1800 Vdc
(3 stage MCP) .... 2700 Vdc
MCP-Out and Phosphor Screen ..... 6000 Vdc
Figure 2: Typical Luminous Gain vs. MCP Voltage
Tll B0076EA
Figure 3: Typical Photocathode Input Illuminance vs.
Phosphor Luminous Emittance
10
3
Tll B0075EA
10
9
OUTPUT BRIGHTNESS (lm/m
2
/lx)
LUMINOUS GAIN (lm/m
2
/lx)
10
7
GA
IN
GA
IN
2 Stage MCP
10
1
=1
×
1
0
7
GA
IN
=1
×
1
0
4
10
0
10
6
1 Stage MCP
V7090-61
3 Stage MCP
10
-1
10
5
10
-2
10
4
10
-3
10
3
10
-4
10
2
500
1000
1500
2000
2500
3000
10
-5
10
–9
10
–8
10
–7
10
–6
10
–5
10
–4
10
–3
10
–2
10
–1
INPUT ILLUMINANCE (lx)
MCP VOLTAGE (V)
Figure 4: Various Phosphor Screen Spectral Emission
Tll B0078EB
Figure 5: Phosphor Screen Decay Characteristics
10
2
Tll B0079EB
100
P-47
80
P-11
P-24
EYE
RESPONSE
P-43
=1
×
1
0
8
10
8
10
2
P-43DC*
10
1
RELATIVE INTENSITY (%)
P-46
10
0
P-47
P-24
100ns
P-20DC*
RELATIVE INTENSITY (%)
P-20
60
P-20
40
P-46
20
10
-1
1ms
10
-2
10
-3
100ns
1ms
1µs
1ms INPUT LIGHT
100ns
100ns 1µs
PULSE WIDTH
SCREEN PEAK CURRENT 8nA/cm
2
0
350
400
450
500
550
600
650
700
10
-4
10
-8
10
-7
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
WAVELENGTH (nm)
DECAY TIME (s)
5
Decay time obtained following to the continuous input light removal.
Decay Time, Emission Color and Efficiency of Phosphor Screen
Phosphor Screen
Decay Time
(to 10%)
Emission Color
Relative Power
Efficiency
b
P-11
30 to 100
µs
a
Blue
1
P-20
0.01 to 4 ms
a
Yellowish Green
1
P-24
3 to 40
µs
Green
0.4
P-43
1 ms
Yellowish Green
1
P-46
0.2 to 100
µs
Yellowish Green
0.3
P-47
0.1
µs
Purplish Blue
0.3
NOTE:
a
Varies with input pulse width.
b
Relative value when P-43 is made as 1. The unit for the power efficiency is expressed W/m
2
.
PROXIMITY FOCUSED IMAGE INTENSIFIER V7090 SERIES
Figure 6: Typical MTF
100
90
80
70
MTF (%)
Tll B0077EA
1 Stage MCP
60
50
40
30
20
10
0
0
10
20
30
40
50
60
3 Stage MCP
2 Stage MCP
SPATIAL RESOLUTION (Lp/mm)
Figure 7: Dimensional Outline (Unit: mm)
The input window of the type U is depressed from the front surface of its housing.
The input window of the type D is projected from the front surface of its housing.
The input window thickness of both U and D types is 5.5±0.1mm.
Type. U
PHOTOCATHODE
PHOSPHOR SCREEN
BLACK
EFFECTIVE PHOTOCATHODE DIAMETER
VIOLET
GRAY
GREEN
RED
45.0
–0.3
18˚
EFFECTIVE
PHOSPHOR SCREEN DIAMETER
MCP
1 stage
IN
.
23.0±0.3
23.0±0.3
24.0±0.4
2.0±0.3
1.5±0.3
2.0±0.4
0.5±0.2
0.5±0.2
1.5±0.2
IN
.
2 stage
3 stage
21.8
M
+0
18
19
18
M
INPUT WINDOW
18˚
OUTPUT WINDOW
5.5±0.1
14.2±0.1
INPUT VIEW
LEAD LENGTH
200 MIN.
OUTPUT VIEW
LEAD (Teflon Cover)
GREEN (PHOTOCATHODE)
VIOLET (MCP-IN)
BLACK (MCP-OUT)
(PHOSPHOR SCREEN)
RED
GRAY (NESA/GND)
Tll A0033EB
Type. D
PHOTOCATHODE
PHOSPHOR SCREEN
BLACK
EFFECTIVE PHOTOCATHODE DIAMETER
VIOLET
GRAY
GREEN
RED
EFFECTIVE
PHOSPHOR SCREEN DIAMETER
MCP
1 stage
IN
.
21.0±0.4
21.5±0.4
22.0±0.5
0.5±0.3
0.5±0.3
0.5±0.4
45.0
–0.3
2 stage
3 stage
18˚
.
31.1
21.8
IN
+0
M
18
18
M
INPUT WINDOW
18˚
OUTPUT WINDOW
0.5±0.2
5.5±0.1
14.2±0.1
INPUT VIEW
LEAD LENGTH
200 MIN.
OUTPUT VIEW
LEAD (Teflon Cover)
GREEN (PHOTOCATHODE)
VIOLET (MCP-IN)
BLACK (MCP-OUT)
(PHOSPHOR SCREEN)
RED
GRAY (NESA/GND)
Tll A0034EB
* Gray cable will be connected when the tube has a fiber optic output window with NESA coating, which is expressed as “1” in the suffix-F.
HAMAMATSU PHOTONICS K.K., Electron Tube Center
314-5, Shimokanzo, Toyooka-village, Iwata-gun, Shizuoka-ken, 438-0193, Japan, Telephone: (81)539/62-5248, Fax: (81)539/62-2205
U.S.A.:
Hamamatsu Corporation: 360 Foothill Road, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1)908-231-0960, Fax: (1)908-231-1218
Germany:
Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49)8152-375-0, Fax: (49)8152-2658
France:
Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: (33)1 69 53 71 00, Fax: (33)1 69 53 71 10
United Kingdom:
Hamamatsu Photonics UK Limited: Lough Point, 2 Gladbeck Way, Windmill Hill, Enfield, Middlesex EN2 7JA, United Kingdom, Telephone: (44)181-367-3560, Fax: (44)181-367-6384
North Europe:
Hamamatsu Photonics Norden AB: Färögatan 7, S-164-40 Kista, Sweden, Telephone: (46)8-703-29-50, Fax: (46)8-750-58-95
Italy:
Hamamatsu Photonics Italia S.R.L.: Via Della Moia, 1/E 20020 Arese, (Milano), Italy, Telephone: (39)2-935 81 733, Fax: (39)2-935 81 741
Tll
1039E02
MAR. 1998. SI
Printed in Japan (500)
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