MP900 datasheet(2/3 Pages) PERKINELMER

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MP 900

Specification *)

Detector

Detector type

CPM-Channel Photomultiplier

Model *)

MP 942

MP 943

MP 944

MP 952

MP 962

Installed CPM type

C 942 P

C 943 P

C 944 P

C 952 P

C 962 P

Photocathode diameter

min. 5 mm

Photocathode material

Bialkali

Multialkali

Window material

Quartz

UV-glass

Boro

Quartz

Spectral response / nm

165-650

185-650

300-650

165-750

165-850

Quantum efficiency

20% typical

Dark counts (typ.)

10 cps

50 cps

100 cps

P Version

Model

MH 942P

MH 943 P

MH 944 P

MH 952 P

MH 962 P

Installed CPM type

C 942 P

C 943 P

C 944 P

C 952 P

C 962 P

Dark counts (typ.)

10 cps

50 cps

100 cps

*) Additional models on request

Photon Counting Electronics Data

Linear count rate

5 MHz

Output pulse

TTL, positive

Over-illumination protection

active quenching control

Output impedance

50 ohms

Supply voltage

+5 to +5.5 V DC

Active Quenching Control

TTL-Pulse, active high,

RESET: internal via timer, typ. 0,5 s

external via TTL-pulse

Output pulse width

adjustable, min. 15 ns, max. 1 µs

Input current at max. count rate

< 250 mA

GATE voltage Vgate

TTL-level: h to l

set time Vca to Vch-ent +100 V : ≈ 150 µs

TTL-level: l to h

set time Vca to Vch-ent - 100 V : ≈ 150 µs

Maximum Ratings

Input voltage

+5.5 V

Operating temperature

5 to 40 °C

Storage temperature

-20 to 50 °C

Weight

approx. 390 g

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