426 Linear Gate

 Specifications

PERFORMANCE

GAIN Unity.

INTEGRAL NONLINEARITY <±0.15% from 0.2 to 10 V.

PULSE FEEDTHROUGH <10 mV with a 10-V input pulse.

TEMPERATURE INSTABILITY <±0.015%/°C, 0 to 50°C.

COUNTING RATE The gain shift of a 4-V reference pulse is <0.25% with the application of an additional count rate of 65,000 counts/s of 6-V random pulses.

CONTROLS

GATE WIDTH Continuously variable from 0.3 to 4 µs.

OUTPUT PEDESTAL Adjustable to <1 mV.

PULSE INHIBIT/NORM/DC INHIBIT 3-position mode switch permits selection of the function of any pulse or dc level furnished through the front-panel Enable Input connector, or the rear-panel DC Inhibit connector.

Norm Input pulse will be gated through to the output during a gate width interval following the leading edge of each Enable Input pulse.

Pulse Inhibit Input pulses will be inhibited from passing through the output during a gate width interval following each Enable Input pulse.

DC Inhibit Input pulses will be inhibited from passing through the output during intervals of pulses or dc levels through the rear-panel DC Inhibit connector

INPUTS

LINEAR INPUT Unipolar or bipolar with positive portion leading. Rated range 0.2 to 10 V, 12 V maximum. Input impedance >5000 W; BNC connector. Input is ac-coupled with a passive symmetric baseline restorer. BLR can be bypassed for dc-coupling.

ENABLE OR INHIBIT INPUT Any positive input >2 V, maximum input 20 V. Enable impedance 1000 W, dc-coupled; Inhibit impedance 650 W, dc-coupled; BNC connector for each.

OUTPUTS

Rated output range 0.2 to 10 V positive; 12 V maximum. Output impedance ~2 W, dc-coupled, short-circuit protected; BNC connector.

ELECTRICAL AND MECHANICAL

POWER REQUIRED The Model 426 derives its power from a standard NIM bin/power supply. The power required is +24 V, 30 mA; –24 V, 49 mA; +12 V, 16 mA; –12 V, 4.9 mA.

WEIGHT
Net 0.96 kg (2.1 lb)
Shipping 1.82 kg (4.0 lb).

DIMENSIONS NIM-standard single-width module 3.43 X 22.13 cm (1.35 X 8.714 in.) per DOE/ER-0457T.

ORDERING INFORMATION