User`s guide

APDCAM User’s Guide
Page 4/32
Table 1. Technical specifications of APDCAM, part 1.
1
Temperature range depends on ambient temperature.
2
Standard setting. Sensitivity and bandwidth can be specified at order time. Selection affects noise level.
Detector
Detector type Avalanche Photodiode array
Hamamatsu S8550
Array size 4 x 8
Pixel size 1.6 x 1.6mm
Pixel pitch 2.3 mm
Spectral response range 300 to 1000 nm
Peak quantum efficiency 85% typical at 650 nm
Detector Gain Typical 50, max 100
Temperature control range
1
Typical 10...30 ºC
Temperature control type Peltier, cooling/heating
Optical interface
Lens mount Nikon F mount
Window material BK7 with antireflection coating
Shutter
Type Electromagnetically operated mechanical
Control Software or external input
Calibration light
Type Red LED with fibre coupling
Control DC set from software
Sensitivity and noise
Sensitivity @ Gain=100, 14 bit mode
2
2.4 10
6
photon/s/digit
Noise equivalent photon flux @ no light
2
Typical 5 10
7
photon/s
Analog bandwidth
2
1 MHz
Di
g
itizer
Internal sampling rate / bits 10-50 MHz / 14 bits
Digital filter 5-point FIR + 1point recursive
Output bits 14/12/8 (MSB from internal 14 bits)
Ring buffer 0...1024 samples/channel
Trigger Internal level/External TTL/software
Trigger delay 1µs....1000s
Resampling control Internal fixed divider or external TTL
input
Clock base Internal 20 MHz or external