Two Pulse Counters of High Resolution; DEUX APPAREILS DEMULTIPLICATEURS D'IMPULSION A POUVOIR RESOLUTIF ELEVE
Technical Report
·
OSTI ID:4250362
Two pulse counters of high resolution (30 nsec) capable of counting rates up to 10/sup 6/ pulses/sec were built. The first instrument has a multiplication factor of 16 and consists of a pulse-forming circuit followed by four binary scalers. A flip-flop circuit is used with cathode follower coupling, capable of fast switching. The tubes used are high transconductance long-lived types. Stability tests of several hundred hours were made, and the instrument was proved to have good stability. The second instrument has a pulse-forming circuit followed by a ring element with a multiplication factor of 5 and then by a normal binary scaler. The ring element has a classical trigger circuit with positive fecd-back between dynode and grid. The d-c voltages, the biases, and the coupling between tubes were designed so as to obtain stable operation in the on'' and off'' states. The instrument has the advantage of having a scale factor of 10 and a lower current drain. (J.S.R.)
- Research Organization:
- Italy. Comitato Nazionale per le Ricerche Nucleari. Divisione Sviluppo Reattori, Rome
- NSA Number:
- NSA-13-011094
- OSTI ID:
- 4250362
- Report Number(s):
- CNC-8
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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