SCALE OF TEN WITH approx. 10 NS RESOLVING TIME
Technical Report
·
OSTI ID:4157185
A fast decade scaler designed primarily for recording randomly spaced pulses is described. It consists essentially of 4 bistable multivibrators (using transistors in a saturated mode), arranged to count in a 1-2-4-8 natural binary code (a scale of 5 preceded by a scale of 2). The scales of 2 and 5 have resolving times of approximates 9 and approximates 20 ns, respectively. Estimates on expected counting errors for random input pulses are given. In addition to the actual decade scaler with visual decimal readout, a tunnel diode shaping circuit and a gating circuit are described. The nominal input current required for the shaping circuit is --5 ma into 50 ohms. The shaping circuit accepts pulses with risetimes from the nsec range to the msec range (amplitude dynamic range approximates 1: 5) and standardizes them to a form acceptable by the scale of 2. (auth)
- Research Organization:
- Princeton-Pennsylvania Accelerator, Prineton, N.J.
- NSA Number:
- NSA-18-001991
- OSTI ID:
- 4157185
- Report Number(s):
- PPAD-480-D
- Country of Publication:
- United States
- Language:
- English
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