9956B Ver la hoja de datos (PDF) - Unspecified
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9956B Datasheet PDF : 2 Pages
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51 mm (2") photomultiplier
9956B series data sheet
1 description
The 9956B is a 51mm (2”) diameter end window
photomultiplier, with enhanced green sensitive bialkali
photocathode, and 10 high gain, high stability, SbCs dynodes
of the long established venetian blind design providing a low
afterpulse rate.
2 applications
• wide range of applications
3 features
• high gain
• low afterpulse rate
4 window characteristics
9956B
borosilicate
spectral range *(nm)
refractive index (nd)
290 - 680
1.49
K (ppm)
300
Th (ppb)
250
U (ppb)
100
* wavelength range over which quantum efficiency exceeds 1 % of peak
5 typical spectral response curves
30
20
B
10
0
100
300
500
700
900
wavelength nm
6 characteristics
unit min typ max
photocathode: bialkali
active diameter
mm
quantum efficiency at peak
%
luminous sensitivity
µA/lm
with CB filter
8
with CR filter
dynodes: 10VBSbCs
anode sensitivity in divider A:
nominal anode sensitivity
A/lm
max. rated anode sensitivity
A/lm
overall V for nominal A/lm
V
overall V for max. rated A/lm
V
gain at nominal A/lm
x 106
dark current at 20 ºC:
dc at nominal A/lm
nA
dc at max. rated A/lm
nA
dark count rate
s-1
pulsed linearity (-5% deviation):
divider A
mA
rate effect ( Ia for ∆g/g=1%):
µA
magnetic field sensitivity:
the field for which the output
decreases by 50 %
most sensitive direction
T x 10-4
temperature coefficient:
% ºC-1
timing:
single electron rise time
ns
single electron fwhm
ns
transit time
ns
weight:
g
maximum ratings:
anode current
µA
cathode current
nA
gain
x 106
sensitivity
A/lm
temperature
°C -30
V (k-a)(1)
V
V (k-d1)
V
V (d-d)(2)
V
ambient pressure (absolute)
kPa
46
28
90
12
6
50
500
900
1250
0.6
0.3
3
800
2
20
1150
3
± 0.5
10
22
65
140
100
200
6
500
60
2000
450
300
202
(1)
(2)
subject to not exceeding max. rated sensitivity subject to not exceeding max rated V(k-a)
7 typical voltage gain characteristics
10,000
8
10
1,000
500
7
10
100
50
6
10
10
5
10
1
4
10
0.1
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Vk-a (kV)
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