Specifications

BASE

HIGH VOLTAGE Negative, 3 kV maximum.

BLEEDER CURRENT 2-mA maximum (last four dynodes available for voltage stabilization).

SIGNAL

ANODE Negative timing signal, 50 W, dc-coupled, back-terminated; very good pulse quality for signal currents to 0.5 A for Philips tubes.

DYNODE Positive linear signal from the eighth or tenth dynode (pin 13); capacitive-coupled; impedance ~1MW.

INTERNAL CONTROLS Voltage adjustment for focus and deflection electrodes and for the last dynode.

CONNECTORS

ANODE  BNC.

DYNODE  BNC.

HIGH VOLTAGE SUPPLY SHV AMP 51494-2

AUXILIARY MS3112E12-10S or Bendix PT02E-12-10S.

PMT SOCKET 20-pin JEDEC B20-102

ELECTRICAL AND MECHANICAL

WEIGHT
Net  0.63 kg (1.4 lb)
Shipping  1.27 kg (3.0 lb)

DIMENSIONS 7.62 cm (3 in.) diameter x 20.32 cm (8 in.) long.

Power Required  +24 V, 65 mA; -24 V, 65 mA.

Weight
Net  0.9 kg (2 lb.)
Shipping 2.2 kg (5 bl.)

Dimensions  Standard single-width NIM 3.34 x 22.13 cm (1.35 x 8.714 in.) per DOE/ER-0457T.

RELATED EQUIPMENT

The anode timing signal should be furnished to an ORTEC Fast Discriminator (such as Models 583B, 584, or 935) using a 50-W coaxial cable (C-25-12). For single-photon counting insert a fast amplifier, such as the Model VT120, between the anode output and the discriminator input.

The linear output from pin 13 is normally processed through an ORTEC Model 113 Scintillation Preamplifier and a Shaping Amplifier (such as Models 460, 570, 572A, or 575A) for energy spectroscopy.

High voltage, at the level recommended by the manufacturer of the PMT, can be furnished from an ORTEC Model 556 High-Voltage Power Supply. The C-36-12 Cable is available for this connection.

ORDERING INFORMATION