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Title: TRANSISTORIZED COUNTING SYSTEMS. 12, A TRANSISTOR TRIGGER CIRCUIT EXHIBITING AN ACCURATE TRIGGERING THRESHOULD; MECANISME DE LA VARIATION DES IMPULSIONS DANS LES COMPTEURS- $alpha$ AU SCd EN FONCTION DE L'IRRADIATION PAR LA LUMIERE DANS LE DOMAINE VISIBLE

Technical Report ·
OSTI ID:4278687

A transistorized voltage discriminator is described. In the circuit, a forward-biased diode is used to shunt an element in a positive feedback loop and thereby to make the loop stable. When a disturbing signal is fed to the diode to reduce the diode current, the rise in diode impedance may be sufficient to cause the loop gain to exceed unity and a trigger action ensues in the circuit. The report also studies variations of diode characteristics with time and temperature and their effect on the triggering level of the circuit. A description of various time and frequency depcndent effects is also included. (auth)

Research Organization:
Atomic Energy of Canada Ltd., Chalk River Project, Chalk River , Ont.
DOE Contract Number:
AT(33-2)-1
NSA Number:
NSA-13-011095
OSTI ID:
4278687
Report Number(s):
CREL-778 AECL-767
Resource Relation:
Other Information: Decl. Mar. 12, 1959 ol. 13, as abstract No. 175. Orig. Receipt Date: 31-DEC-59
Country of Publication:
United States
Language:
English