No abstract available

No abstract available

[en] A lost-motion drive mechanism for high speed film transport for use in x-ray cameras is described. (UK)

[en] A presentation is given of recent contributions that reactor noise analysis brought to the theory of probability and its applications, in terms of new profiles and distribution families. A time documentary approach is adopted. The PMZBB (Pal-Mogilner-Zolotukhin-Bell-Babala) distribution, Turkcan and Dragt's first try to derive the probability profile from the generating function and Routti Szeless and Ruby's elegant computational procedure - based on the partitions of integer numbers - are progressively recalled. In search of new probability distributions approximating the PMZBB profile, a number of generating functions have been introduced, analyzed and mutually compared. These functions lead to: (1) the Logarithmic distribution, (2) the Radical distribution, (3) the Algebraic distribution, (4) the Poisson-Logarithmic distribution, (5) the Poisson-Radical distribution and (6) the Poisson-Alegbraic distribution. Distribution (4) is also known as Polya or Pascal or Negative Binomial distribution. Distributions (2) (3) (5) and (6) are an absolute novelty in the field of probability theory. Distributions (4) (5) and (6) belong to the class of 'generalized Poisson distributions', introduced by Gurland some years ago. (author)

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No abstract available

[en] Recording of X or gamma rays by a sensitive surface constituted of a metallic salt (mercury, copper, iron, etc.) at its lower valency, an oxalate, a chelating agent giving a coloured complex of the metal, where required an electron giving compound, and a film forming binder. Heating is employed for developing the latent image. This composition is proof against visible or ultraviolet light

[en] Difficulties observed in the application of track theory to CNO particles are attributed to problems in the application of a light scattering correction in microphotometry. (Auth.)

No abstract available

[en] The present status of the experiment can be broken into ''performance'' and ''construction''. In the area of performance, production and prototype versions of both the PDT's and calorimeters have been tested using charged particles from beams, cosmic rays and sources. The desired specifications have been met; in particular: Δthetasub(e) approximately = 12 mrad/√Ee, calorimeter attenuation lenghts approximately 200cm, and single cell dE/dx of < 50% FWHM. In the area of construction, three complete (calorimeter plus X-Y PDT's) modules per week are being produced. About one tenth of the total detector is in installation for an engineering run next month (april, 1980). In the autum (>september, 1980), data taking runs should begin on between one-half and one-third of the detector. Future plans include adding the remaining portion of the detector during the following year as well as the addition of a magnetic spectrometer for muons and downstream augmentation of gamma ray detection