29 mm (1.13") photomultiplier
9828B series data sheet
6 characteristics
1 descriptionunit

The 9828B is a 29 mm (1.13") diameter, end window
photomultiplier with prismatic window, S20 infra-red sensitive
photocathode and 11 high gain, high stability SbCs dynodesof box and grid design. The 9828WB is a variant for
applications requiring uv sensitivity.

photocathode: S20
active diametermm
quantum efficiency at peak%luminous sensitivityµA/lmwith CB filter
with CR filter
with IR filter
dynodes: 11BGSbCs
anode sensitivity in divider A:
nominal anode sensitivity
A/lmmax. rated anode sensitivity
A/lm
overall V for nominal A/lm
Voverall V for max. rated A/lm
V6gain at nominal A/lm
x 10
dark current at 20 ºC:
dc at nominal A/lmnA
dc at max. rated A/lmnA
-1dark count ratepulsed linearity (-5%) deviation):
divider A
mA
magnetic field sensitivity:
the field for which the output
decreases by 50 %-4
most sensitive direction
T x 10-1
temperature coefficient:% ºCtiming:
single electron rise timenssingle electron (fwhm)
nstransit timensweight:g
maximum ratings:
anode currentµA
cathode current
nA
6gain
x 10
sensitivity
A/lm
temperature°C(1)
V (k-a)VV (k-d1)
V(2)
V (d-d)Vambient pressure (absolute)kPa

2 applications
photon counting of bio- and chemi-luminescent samples
SOx NOx pollution monitoring
spectroscopy

3 features•••high gain
low operating voltage
extended red sensitivity

4 window characteristics
9828B
borosilicate

9828WBuv glass

280 - 870
1.49

170 - 870
1.483002501008500
3030

spectral range *(nm)refractive index (nd)radiopurity:K(ppm)Th (ppb)
U(ppb)* wavelength range over which quantum efficiency exceeds 1 % of peak(1)

subject to not exceeding max. rated sensitivity

5 typical spectral response curves

WA/ l mquant um ef f i ci ency %62521220
8100
12200
2000
850
1100
0.9

1100

220
10000

100.1

2
± 0.5
1530
80
55
100
500
9
2000
60
2000
300
300
202-80(2)

subject to not exceeding max rated V(k-a)

10,00020B

72,000
1,000

10200
100106510divider A

10410

10100max

7 typical voltage gain characteristics

3010

typ3300

500
wavelength nm

700900

0.1

100.2

0.4

0.6

0.8

1.0

1.2

Vk-a (kV)

1.4

1.6

1.8

2.0

gai n•••min11 ordering information

8 voltage divider distribution

kd1 d2

A 150V R

d8

d9 d10 d11

RRR2R9828B series data sheet
page 2aR

Standard

Characteristics contained in this data sheet refer to divider A
unless stated otherwise.

The 9828B meets the specification given in this data sheet.
You may order variants by adding a suffix to the type number.
You may also order options by adding a suffix to the type
number. You may order product with specification options
by discussing your requirements with us. If your selection
option is for one-off order, then the product will be referred toas 9828A. For a repeat order, ET Enterprises will give theproduct a two digit suffix after the letter B, for example B21.
This identifies your specific requirement.

9 external dimensions mm9828
window variants

28.2 maxW

UV glassoptions
Eelectrostatic shielding
see drawing below
electromagnetic shielding
see drawing below
supplied with spectral
response calibration

SM
112 ± 3

specification options
BA

as given in data sheet
single order toselected specification
repeat order toselected specification

Bnn

12.7 max

29.3 max withelectromagnetic
shielding

29 max withelectrostatic
shielding

10 base configuration (viewed from below)
conductive coating(for E option)
d11

ad10

mumetal* shield(for S option)

d8
d6

d9
d7

d4

B14B

d5

insulating sleeve(for E & S options)

d2
d3

ic

d1k‘ic’ indicates an internal connection*mumetal is a registered trademark of Magnetic Shield Corporation

Our range of B14B sockets, available for this series, includes
versions with or without a mounting flange, and versions withcontacts for mounting directly onto printed circuit boards.

12 voltage dividers
The standard voltage dividers available for these pmts aretabulated below:
kd1

d2

d7

d8

d9d10 d11 a

C637E

2RRR

R

R

2R R

C637G

150V RRRR

2R R

R = 330 kΩ
ET Enterprises Limited
45 Riverside Way
Uxbridge UB8 2YF
United Kingdomtel: +44 (0) 1895 200880
fax: +44 (0) 1895 270873
e-mail: sales@et-enterprises.com
web site: www.et-enterprises.com

ADIT Electron Tubes
300 Crane Street
Sweetwater TX 79556 USA
tel: (325) 235 1418
toll free: (800) 399 4557
fax: (325) 235 2872
e-mail: sales@electrontubes.com
web site: www.electrontubes.com

choose accessories for this pmt on our website

an ISO 9001 and ISO 14001 registered company
The company reserves the right to modify these designs and specifications without notice.
Developmental devices are intended for evaluation and no obligation is assumed for future
manufacture. While every effort is made to ensure accuracy of published information thecompany cannot be held responsible for errors or consequences arising therefrom.

© ET Enterprises Ltd, 2013

DS_ 9828B Issue 6 (30/01/13)