Download photodetector module DM0089C data sheet ENS- ECH

photodetector module
DM0089C data sheet
SENS-TECH
SENSOR TECHNOLOGIES
1 description
The DM0089C photodetector module comprises a type
9111B80 25 mm diameter end-window photomultiplier tube
with blue-green sensitive bialkali photocathode with low dark
counts, a positive high voltage power supply and a high
speed amplifier-discriminator. The model includes a counter
and micro-controller with USB interface. All are encapsulated
within a rectangular metal case with connectors for power
input and USB signal output.
2
applications
Intended for ultra-low light measurement applications
requiring single photon detection. Utilises a USB interface to
a host computer.
3
features
6
easy to operate
compact rectangular assembly
electrostatic shielding
operates from low voltage supply
preset discriminator level and HV
fully enclosed high voltages
only 500 mW total power dissipation (typical)
70 MHz count rate capability
wide dynamic range
4
30
quant um ef f i ci ency %
·
·
·
·
·
·
·
·
·
photocathode spectral response
UV glass
bialkali
20
10
accessories
0
· adaptor for SMA terminated optical fibre, type DMSMA
· universal ac power adaptor, type PSU5V-3A
· USB cable with type A plug
5
characteristics
photocathode type
photocathode active diameter
spectral response range
peak QE at 400 nm
output
control
discriminator level
dark counts at 20 °C (typ.)
(max.)
7 -1
power input at 10 s
warm up time
input voltage
temperature (operating)
(storage)
weight
operating position
finish
100
7
300
500
wavelength nm
700
900
user I/O connections
TTL input and output lines are available for control of the
module and to command peripheral operations.
bialkali
22 mm
280 to 630 nm, see curve
28 %
USB
see user manual
-2 mV
-1
50 s
-1
200 s
+5 V, 100 mA
less than 10 s
+4.75 V to +5.25 V
+5 °C to +55 °C
-40 °C to +55 °C
200 g
any
case, black powder coat
front plate, black anodised
trigger input
user output
8
start command for cycle
defined by software
5V logic output for user
applications. For example:
activate shutter; busy indicator
user manual & software link
A manual giving detailed instalation, start-up, software link
and programming procedures is supplied by e-mail after
receipt of purchase order..
9
test data
Module test data is supplied on request.
DM0089C data sheet
page 2
10 dynamic range
12 outline drawing (mm)
Typical counting sensitivity for DM0089C at 400 nm. Note
that automatic dead time correction has been applied at high
count rates. The dynamic range can be further extended at
low count rates by dark count subtraction in the software.
10
output counts s-1
10
10
8
10
5
6
3
1
8
13.5
4
Hirose HR10-7R-6P
6 way fixed plug
pin 1 USB 0 V
2 USB power
3 USB DM
4 USB DP
5 user out
6 trigger in
2
7
15.0 crs
6
Pin designations
10
10
10
5
power input
+4.75 V to +5.25 V
2.1 mm dc power
connector (centre
positive)
4
3
10
2
10
count
subtraction
darkdark
count
subtraction
1
10
-17
10
-16
10
-15
10
-14
10
-13
10
-12
10
-11
10
-10
10
4 holes,
M3 x 6.5 deep
on 25 centres
-9
incident light power W at 400 nm and 20 °C
±0.25
11 functional diagram
80.0
photomultiplier
photocathode
anode
dynodes
±0.25
15.7
+ve HV supply
disable
HV
+5V (red)
22.0 dia active area
amplifier
/
discriminator
0V (black)
trigger in (grey)
USB
type A plug
USB
interface
microcontroller
user out (violet)
±0.25
±0.25
32.0
56.5
13 installation and operation
counter
Each module is supplied with test data. Wherever possible
carry out installation in subdued light.
Remove the protective cap from the window of the module. If
necessary, clean the photomultiplier window using a lens
tissue moistened with alcohol. Do not use any other solvent.
Mount the module and make power input and signal
connections.
Do not expose the photomultiplier tube photocathode to
strong lights while the module is energised.
14 warning
Do not attempt to repair or dismantle this product. High voltage
used within the module presents an electric shock hazard.
Do not operate beyond the maximum ratings, or reverse the
input voltage; this may result in loss of performance or
permanent damage to the product.
Sens-Tech Limited
6A Langley Business Centre,
Station Road, Langley
Berkshire, SL3 8DS, UK
tel:
+44 (0)1753 214714
fax:
+44 (0)1753 214715
e-mail: [email protected]
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
the company cannot be held responsible for errors or consequences
arising therefrom.
an ISO 9001 registered company
www.sens-tech.com
SENS-TECH
SENSOR TECHNOLOGIES
© Sens-Tech Limited
DS_DM0089C Issue 3
28 March 2014