Information furnished by HA MAM ATS U is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are
subject to change without notice. No patent rights are granted to any of the circuits described herein.
2000 Hamamatsu Photonics K.K.
Subject to local technical requirements and regulations, availability of products included in this promotional material may var y. Please consult with our sales office.
PHOTOMULTlPLlER TUBE
R7449
28mm(11/8 Inch) Diameter, 11stage, Bialkali Photocathode,
HeadOn Type, Low Dark Current, High Stability
GENERAL
Parameter
Description/Value
Unit
Spectral Response
185 to 650
nm
Wavelength of Maximum Response
420
nm
Photocathode
MateriaI
Bialkali
Structure
Number of Stages
Minimum Effective Area
25
mm dia.
Window MateriaI
UV glass
Dynode
Base
Suitable Socket
Box and Line
11
14pin glass base
E67814C (supplied)
Electrodes
K
Dy1
Dy2
Dy3
Dy4
Dy5
Dy6
Dy7
Dy8
Dy9
Dy10
Dy11
P
Ratio
1
1
1
1
1
1
1
1
1
1
1
1
SuppIy Voltage : 1000Vdc, K : Cathode, Dy : Dynode, P : Anode
VOLTAGE DlSTRlBUTlON RATlO AND SUPPLY VOLTAGE
MAXIMUM RATINGS (Absolute Maximum Values)
Parameter
Value
Supply Voltage
Between Anode and Cathode
Between Anode and Last Dynode
1500
250
Unit
Vdc
Vdc
mA
C
Average Anode Current
Ambient Temperature
0.1
-80 to +50
CHARACTERISTlCS (at 25
C )
Parameter
Max.
Typ.
Min.
Cathode
Sensitivity
Gain
Anode Dark Current (after 30min. storage in darkness)
Radiant at 420nm
Radiant at 420nm
Blue (CS558 filter)
A/lm
A/lm
A/lm-b
A/W
mA/W
Anode Pulse Rise Time
4
ns
nA
Transit Time Spread (FWHM)
Electron Transit Time
95
88
11
200
60
50
Time Response
Anode
Sensitivity
30
3
2
10
Unit
ns
ns
1.8
10
5
2.1
10
6
Luminous (2856K)
Luminous (2856K)
Anode characteristics are measured with the voItage distribution ratio shown below.
NOTE:
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, P. O. Box 6910, 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(20)8-367-3560, Fax: 44(20)8-367-6384
North Europe: Hamamatsu Photonics Norden AB: Smidesvgen 12, SE-171-41 SOLNA, Sweden, Telephone: (46)8-509-031-00, Fax: (46)8-509-031-01
Italy: Hamamatsu Photonics Italia: S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39)02-935 81 733, Fax: (39)02-935 81 741
HOMEPAGE URL http://www.hamamatsu.com
PHOTOMULTlPLlER TUBE R7449
Figure 1: Typical Spectral Response
Figure 2: Typical Gain
Figure 3: Dimensional Outline and Basing Diagram (Unit: mm)
BOTTOM VIEW
(BASING DIAGRAM)
TPMHB0217EA
TPMHB0311EB
TPMHA0464EA
Socket
(E67814C)
TACCA0004EA
TPMH1271E01
JAN. 2000 IP
10
8
10
7
10
6
10
5
10
4
10
3
102
500
1000
700
1500
2000
SUPPLY VOLTAGE (V)
GAIN
WAVELENGTH (nm)
CATHODE RADIANT SENSITIVITY (mA/W)
QUANTUM EFFICIENCY (%)
QUANTUM
EFFICIENCY
CATHODE
RADIANT
SENSITIVITY
0.01
200
400
600
800
0.1
1
10
100
1
2
3
4
5
6
7
8
9
10
11
12
13
14
IC
DY3
DY2
DY7
DY9
DY11
P
DY10
DY8
DY6
DY4
DY5
K
DY1
SHORT PIN
28.5
0.5
25MIN.
FACEPLATE
PHOTOCATHODE
112
2
13MAX.
14 PIN BASE
7
2.5
26
11.6
30
35
44
19.1
9
25
2- 3.5
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