419 precision pulse generator

pulse amplitude

The output peak value can be0to±1 VAdjust within the range. Using the provided charge terminator, this can be converted to0-2 pC, which is equivalent to that of a silicon semiconductor detector0-44 MeV. Rise time is selectable via front panel switch; fall time is200μs(terminated) or400μs(unterminated) exponential decay time constant.

temperature instability

in0Arrive50°Cbetween,<±0.005%/°C。

Line voltage instability

Each change in power line voltage10％，<±0.001％。

Ripple and noise

≤pulse amplitude0.003％。

pulse repetition frequency

AC power line frequency, or when using the internal oscillator70±10 Hz。

Internal oscillator

• temperature instability<±0.05％/°C，0to50°C。
• temporal instability<±1％/Days.

pulse height

with double dials10The coil potentiometer adjusts the output pulse amplitude at both outputs over the total output range; this range is a combined function of the reference value and the normalized control setting. Linearity is ± of full scale0.1％。

normalization

When using the reference voltage internal switch,10Turn potentiometer adjusts the entire range of the pulse height control; full-scale range is ±0.5 Vto±1 V; Linear, ± of full scale0.1％。

relay

3slide switch to select the AC power line frequency or select the internal70 Hzoscillator, also includes an off position to set the pulse generator to standby.

Reference voltage

2bit slide switch for selecting the internal reference voltage0to±1 Vof100% normalized full-scale range, or for external reference voltage selected by rear panelBNCThe level provided by the connector determines the full-scale range of the output and
polarity.

polarity

When using internal references,2Bit slide switches are used to select the polarity for the output pulses.

rise time
(nanoseconds)

5A bit rotary switch is used to select rise time shaping for the output pulse to simulate various types of detectors; a minimum (~5 ns）、20、50、100and250 ns。

attenuation factor

5A toggle switch is used to select the step attenuation factor for the output pulse provided by the attenuated output connector; the factors are2、2、5、10and10. They can be used in combination when using0.1% tolerance resistor case is able to cover2000：1dynamic range.

external reference

The current panel reference voltage switch is set toExtwhen, the rear panelBNCConnector accepts external reference voltage to control full-scale pulse height control range and polarity; ±20 V;The output full-scale range is terminated at the output100 Ω is the reference level50％。

direct

Front panel with adjacent test pointsBNCConnector passes100 The output impedance of Ω provides a regulated and normalized full amplitude output pulse.

Attenuation

Front panel with adjacent test pointsBNCconnector provides the same output pulses as above, with amplitudes as5Attenuation is performed by a factor selected by a toggle switch.

pulse height voltage

Two test points on the rear panel allow a DC voltmeter or oscilloscope to monitor the voltage level applied to the pulse forming relay.

Required power supply

+24 V, 45 mA; –24 V, 25 mA; +12 V, 0 mA; –12 V, 5 mA; 117 V ac, 10 mA。

weight

Net weight 2.0Kilogram (4.5pounds). Shipping weight 2.9Kilogram (6.5pounds).

Size

Standard double wideNIMmodule,6.90 X 22.13cm (2.70 X 8.714inches), consistent withDOE/ER-0457Trequirements.

voltage terminator

a standard100 Ω resistor terminator, connected to the direct output connector on the front panel to properly terminate the output when using only the attenuated output.

charge terminator

A specially designed terminator, mounted in the rear panel fixture, is used to properly terminate the pulse generator output and feed the charge signal into the signal input of the charge sensitive preamplifier when providing the output pulse for this type of test.

Model

Description

419

Precision pulse generator