R7250 HAMAMATSU [Hamamatsu Corporation], R7250 Datasheet - Page 3

• Manufacturer Part Number: R7250
• Description: LARGE PHOTOCATHODE AREA PHOTOMULTIPLIER TUBES
• Manufacturer: HAMAMATSU [Hamamatsu Corporation]

storage in darkness)
R5912, R7081
R5912, R7081
(Taperd Divider)
R8055
R7250
R3600-02
R5912-02
R7081-20
1000
1000
Typ.
(nA)
200
200
200
Type No.
50
50
(After 30 min
Dark Current
Max.
5000
5000
1000
1000
1000
(nA)
700
700
Voltage
Supply
1500
1500
2000
2000
2000
1700
(V)
storage in darkness)
15 000
25 000
25 000
4000
6000
7000
9000
(After 15 hours
Typ.
(s
-1
Dark Count
K
K
K
Anode Sensitivity
)
11.3
11.3
18.5
18.5
11.3
5
Dy1
Dy1
F2
12 000
15 000
19 000
30 000
80 000
80 000
Max.
8000
0
0
0
0
1
0
(s
-1
F2
F1
F2
)
0.6
0.6
0.6
0.6
0.6
2
F1
F3
F1
0.02
Time
Rise
Typ.
(ns)
0
0
0
0
0
3.8
4.3
4.5
5.3
10
4
7
Dy1
F3
F3
Time Response
3.4
3.4
3.4
3.4
3.4
K: Photocathode
3
Dy2
Dy2
Dy2
Electron
Transit
Time
Typ.
(ns)
110
55
68
63
78
88
95
5
5
5
5
1
5
Dy3
Dy3
Dy3
3.33
3.33
3.33
3.3
3.3
1
Voltage Distribution Ratio
Dy4
Dy4
Dy4
(FWHM)
Spread
Transit
Time
1.67
1.67
1.67
Typ.
(ns)
1.7
1.7
2.4
2.8
2.9
3.3
2.8
5.5
3.5
Dy: Dynode
1
Dy5
Dy5
Dy5
Capacitors in µF
Capacitors in µF
Capacitors in µF
Capacitors in µF
1
1
1
1
1
1
Dy6
Dy6
Dy6
(
Peak to valley ratio
Min.
Photo-electron
1.5
1.5
1.5
1.5
1.5
1.1
1.5
Capacitors in µF
1.2
1
1
1
1
1
P: Anode
Dy7
Dy7
Dy7
Single
Capacitors in µF
1.5
1
1
1
1
1
Dy8
Dy8
Dy8
Typ.
2.5
2.5
2.5
2.5
2.5
1.7
2.5
0.01
0.01
0.01
0.01
2.2
F: Focus
1
2
2
1
1
Dy9
Dy9
Dy9
)
0.01
0.01
0.01
0.01
0.01
1
3
3
3
1
1
Deviation
Dy10
Dy10
Dy10
at ±2 %
20 (60)
20 (60)
(mA)
Typ.
Pulse Linearity
40
40
60
20
60
0.01
0.01
0.01
0.01
0.01
0.01
2.4
1.2
1
4
4
1
Dy11
Dy11
P
0.01
0.01
1.5
Deviation
1
at ±5 %
Dy12 Dy13 Dy14
40 (80)
40 (80)
(mA)
Typ.
P
70
70
80
40
80
0.01
2.2
0.02
R5912
R5912-02
R7081
R7081-20
R8055
R3600-02
R7250
3
Type No.
(at +25 °C)
0.02
2.4
P