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
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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
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Thesis/Dissertation
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Sun Jan 01 00:00:00 EST 1967
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OSTI ID:4278687
Energy Modulation of an Electron Beam by a Hyperfrequency Cavity for the Measurement of the Lifetimes of Excited Levels in the Picosecond Region (thesis); MODULATION EN ENERGIE D'UN FAISCEAU D'ELECTRONS PAR UNE CAVITE HYPERFREQUENCE, EN VUE DE LA MESURE DES DUREES DE VIE DE NIVEAUX EXCITES DANS LE DOMAINE DE LA PICOSECONDE (these)
Thesis/Dissertation
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Tue Jan 01 00:00:00 EST 1963
·
OSTI ID:4278687
Evaluation as a Function of Age of the Effective Energy Absorbed in Any Gram (*EPSILON//m) of Organs Other Than the Gastrointestinal Tract by the Principal Radionuclides Which Could Eventually Contaminate the Food and the Environment; EVALUATION EN FONCTION DE L'AGE DES INDIVIDUS DE L'ENERGIE EFFECTIVE DELIVREE A L'UNITE DE MASSE (*EPSILON//m) DES ORGANES AUTRES QUE LE TRACTUS GASTRO-INTESTINAL PAR LES PRINCIPAUX RADION UCLIDES SUSCEPTIBLES DE CONTAMINER LA CHAINE ALIMENTAIRE ET LE MILIEU AMBIANT
Technical Report
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Tue Jun 01 00:00:00 EDT 1965
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OSTI ID:4278687