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A CAMAC branch driver conceived for use with a Laben 70 computer has been developed for a CAMAC system containing up to 7 crates. A particular interface is directly inserted into the computer and allows the dialogue with it. The branch driver can perform all the operations requested by the CAMAC standard and in addition has some special features such as: (a) Executive mode for operating a direct link between modules via crate controllers and branch highway. (b) Address scan for an unknown number of data where the end of scan is automatically given when the last module comprised in the scan is reached and there is a Q = 0. (c) Peculiar handling of LAM (look-at-me) signals in addition to the normal BD (branch demand). It can use three direct LAM's which can find direct subroutines associated to them or an optional module called “Interrupt Vector Generator” which can manage directly 28 subroutines corresponding to 28 individual LAM's.

(1966). L'importance de certains organismes de phyto- et zooplancton dans le processus d'epuration des eaux d'egouts dans les etangs biologiques. SIL Proceedings, 1922-2010: Vol. 16, No. 2, pp. 948-951.

The basic statistical theory of a triple coincidence circuit is presented with the assumption of Gaussian jitter distributions and the concepts of the “coincidence surface” and the “coincidence curve” are formulated. Two mathematical methods are described for determination of the main statistical parameters of the circuit (resolving time, jitter breadth, efficiency) on the basis of a single empirical coincidence curve. The general approach and some particular cases are presented. The results of numerical calculations and an example illustrating one of the proposed methods are given.

A mathematical method is described for determination of the main coincidence-circuit parameters (resolving time, jitter breadth, efficiency) only on the basis of a single empirical delayed-coincidence curve. The method assumes Gaussian jitter distributions and permits this assumption to be verified if required. Exact graphs and an example illustrating the method are given.

A simple method is described, which allows the determination of coincidence-circuit efficiency at any given resolution or the determination of coincidence-circuit resolution at any given efficiency. Gaussian distributions of time spreads are assumed at the circuit inputs.