113 Scintillation Preamplifier

Specifications

PERFORMANCE

RISE TIME <60 ns.

PREAMPLIFIER FALL TIME Fall time constant is designed for 50 µs, assuming a signal source impedance of 1 MW.

INTEGRAL NONLINEARITY £±0.02%.

TEMPERATURE COEFFICIENT ±0.01%/°C, 0 to 50°C.

COUNTING RATE The gain shift of a 250-mV reference pulse is <0.25% with the application of an additional count rate of 65,000 counts/s of 200-mV random pulses.

NOISE <0.1 mV rms at output.

CONTROLS

INPUT CAP Switch selects desired input capacity; 0, 100, 200, 500 or 1000 pF.

INPUTS

INPUT BNC connector; isolated for 1000 V; positive or negative polarity; input impedance is 45 pF plus the capacity selected by the front-panel switch (0, 100, 200, 500, or 1000 pF), shunted by the resistance needed to preserve a 50-µs decay time constant.

TEST BNC connector accepts a pulse generator output with fast rise and slow decay to check operation of the electronics; input impedance 100 W.

OUTPUT

BNC connector; output impedance adjustable from 40 to 140 W. Output saturation level ±10 V into open circuit; ±5.1 V into 100-W load. Linear output ±7 V into open circuit; ±3.5 V into 100-W load.

ELECTRICAL AND MECHANICAL

POWER REQUIRED +24 V dc, 17 mA; -24 V dc, 17 mA. Supplied through 121-C1 cable (furnished) from any ORTEC main amplifier or preamplifier power supply.

WEIGHT
Net 0.65 kg (1.5 lb)
Shipping 1.05 kg (2.3 lb)

DIMENSIONS 4.5 x 10.2 x 15.3 cm (1.75 x 4 x 6 in.)

ORDERING INFORMATION