photomultiplier tubes
product specification
XP2262
A standard fast, 12-stage, 51mm (2") tube
Applications : High and medium energy physics.
Description :
Window :
Material :
Photocathode :
Refr. index at 420 nm :
lime glass
bi-alkali
1.54
Multiplier :
Mass :
Structure :
Nb of stages :
linear focused
12
130 g
Photocathode characteristics
Spectral range :
290-650
nm
nm
Maximum sensitivity at :
420
Sensitivity •
:
Luminous :
Blue :
Radiant, at 400 nm :
typ.:
typ.:
typ.:
70
11.2
90
µA/lm
µA/lmF
mA/W
þ
min.:
9
Characteristics with voltage divider A
Gain slope (vs supp. volt., log/log) :
For a gain of :
9
3x107
1800
þSupply voltage :
max.: 2400
min.: 1500
typ.:
V
þAnode dark current ‚
þBackground noise ƒ:
:
typ.:
typ.:
typ.:
typ.:
10
1000
70
nA
cps
%
max.: 6000
Single electron spectrum „resolution :
peak to valley ratio :
3
Mean anode sensitivity deviation :
long term (16 h) :
after change of count rate :
vs temperature between 0 and +40°C at 400 nm :
Gain halved for a magnetic field of :
typ.:
typ.:
typ.:
1
1
- 0.2
%
%
%/K
perpendicular to axis "n" :
parallel to axis "n" :
0.2
0.1
mT
mT
Characteristics with voltage divider …:
B
A
For a supply voltage of :
2300
6x107
250
1900
5x107
100
V
Gain :
Linearity (2%) of anode current up to :
mA
Anode pulse †
:
Rise time :
Duration at half height :
Transit Time :
2
3
30
2.3
3.7
31
ns
ns
ns
Transit Time Difference between centre of PK
and 18mm from it :
anode to all dynodes :
0.7
5
ns
pF
Capacitance
PAGE 1/3
18/09/98
ABCDE