10 Hz to 1 MHz, continuously adjustable.
Requires 1 volt, positive pulse.
One pulse occurs each time the push button is pressed.
This toggle provides for a pulse pair whose separation is varied by the
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
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.
Positive 3 volt pulse, 10 ns rise time, 0.2 us width, 50 ohms output impedance.
-50 ns advance to 10 ms delay (between Trigger Out and leading edge of output
Zero to 9.99 volts maximum. Adjustable by ten-turn potentiometer.
X10 and X100 providing up to 1000: 1.
Integral Linearity of Output
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.
Positive or negative.
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.
+24 V at 50 mA, -24 V at 50 mA, +12 V at 175 mA, -12 V at 80 mA.
Double-width AEC module, 2.70 inches wide by 8.70 inches high. Conformsto
AEC Report TID-20893 (Rev. 2).
3.5 lbs. net, shipping 7 Ibs.
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.
• 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