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PD1 and PD5
pulse preamplifiers and discriminators

  • optimised to run with all pulse counting CEM/ MCP detectors of the FOCUS product range
  • and/or foreign devices with CEM or MCP detectors
  • best to be combined with our modular pulse counting 19” system PCU, consisting of a 19” housing
    with a +/- 15 V power supply PCU-FR, channeltron (MCP) high voltage supply modules PCU-CHV, rate meter modules PCU-RM and channel multiplexer module PCU-CHM, up to 5       modules combinable in one housing
  • other channel numbers on request

PD5 and PD1,                     Channeltron

SPECIFICATIONS

PD1

PD5

Number of independent counting channel

one

five (more on request)

Input connector

1 BNC socket

5 BNC sockets

Input impedance

50 Ohm

50 Ohm

Input sensitivity

150 µV

150 µV

Max. repetition rate

50 MHz

50 MHz

Pulse pair resolution

20 nsec

20 nsec

Output

TTL pulses, 1 BNC socket

TTL pulses, 5 BNC sockets

Output noise

1.7 V RMS

1.7 V RMS

Preamp gain

40 dB

60 dB

Input noise level

5 µV

< 5 µV

Delay signal input to comparator out

6.6 nsec

6.3 nsec

Output pulse width

24 nsec (55 nsec at 20 dB input)

24 nsec (42 nsec at 40 dB input)

Overload sustainability

square wave: non measurable
saw tooth: non measurable

square wave: non measurable    saw tooth: non measurable

Output connector

1 BNC socket

5 BNC sockets

Operating voltage

+/- 15 V

+/- 15 V

Power connector

3-pin Lemo

3-pin Lemo

Disriminator threshold

Trim pot adjustable threshold level monitor output (telephone socket)

Trim pot adjustable separately for each channel

Hardware

Discrete circuits with integrated amplifiers

SMD circuits

Housing

Full metal HF-housing (rigid nickel coated aluminium body)

Full metal HF-housing (rigid nickel coated aluminium body)

Weight

~ 300 g

~ 500 g

Outer dimensions

27x51x137 mm³

33x48x201 mm³

Cabling

one 5m power cable and one short (20 cm) input cable

one 5m power cable and five  short (20 cm) BNC input cables

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