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Model BH-1 Tail Pulse Generator


Frequency
10 Hz to 1 MHz, continuously adjustable.

External Trigger
Requires 1 volt, positive pulse.

Single Cycle
One pulse occurs each time the push button is pressed.

Single/Double Pulse
This toggle provides for a pulse pair whose separation is varied by the delay controls.
Minimum separation is 50 ns.

Rise Time of Output (10-90%)
20 ns to 50 us (in 11 steps), exponential shape and independent of decay time.

Decay Time Constant of Output(100-37%)
50 ns to 1000 us (in 11 steps), exponential shape and independent of risetime for decay/rise time >10.

Trigger Out
Positive 3 volt pulse, 10 ns rise time, 0.2 us width, 50 ohms output impedance.

Delay
-50 ns advance to 10 ms delay (between Trigger Out and leading edge of output pulse).

Output Amplitude
Zero to 9.99 volts maximum. Adjustable by ten-turn potentiometer.

Attenuator
X10 and X100 providing up to 1000: 1.

Integral Linearity of Output
±0.1%.

Duty Factor Effect
Amplitude shift less than 0.1% below 30% duty factor. Duty factor in percent for tail pulses is defined as: (8 decay time constants/pulse spacing) X100.

Output Polarity
Positive or negative.

Output Impedance
50 ohms.

External Reference Input
±15 volts max.

Jitter of Frequency and Delay
Less than 0.1%.

Temperature Coefficient of Output
Less than 0.03%/°C.

Amplitude Jitter (Resolution)
Less than 0.01% peak, 0.002% rms of pulse amplitude.

Power Required
+24 V at 50 mA, -24 V at 50 mA, +12 V at 175 mA, -12 V at 80 mA.

Mechanical Dimensions
Double-width AEC module, 2.70 inches wide by 8.70 inches high. Conformsto AEC Report TID-20893 (Rev. 2).

Weight
3.5 lbs. net, shipping 7 Ibs.

Model 085 - Pulse Generator

The Model BH-1 is a tail pulse generator which simulates the broad range of pulses encountered in the nuclear field. Typical applicat ions of the Model BH-1 include: determining the proper timing of linear gates and coincidence unit s , linearity measurements of amplifiers, threshold setting of discriminators and single channel analyzers, and measuring resolution flow noise preamplifiers.

Features

•  Repetition rate 10 Hz - 1 MHz

•  Delay adjustable from -50 ns to 10 ms

•  Rise time 20 ns - 50 µs

•  Fall time 50 ns - 1000 /°s

•  Integral linearity of amplitude ±0.1%

•  Output amplitude: to 9.99 volts from 50 ohms

•  Amplitude jitter: less than 0.002% rms








Berkeley Nucleonics Corporation

2955 Kerner Blvd., San Rafael CA 94901 U.S.A

Phone: 800.234.7858 Fax: 415.453.9956

E-mail: info@berkeleynucleonics.com