Author
Sandra Dulla
Bio: Sandra Dulla is an academic researcher from Polytechnic University of Turin. The author has contributed to research in topics: Neutron transport & Monte Carlo method. The author has an hindex of 13, co-authored 150 publications receiving 899 citations.
Papers published on a yearly basis
Papers
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TL;DR: Improved Quasi-static Method (IQM) as discussed by the authors is a standard tool for the space-time solution of neutron transport problems in multiplying media, where the shape equation is solved on a long time scale, while the amplitude is determined on a short time scale.
85 citations
TL;DR: In this article, the quasi-static method for the neutron kinetics of nuclear reactors is generalized for application to neutron multiplying systems fueled by a fluid multiplying material, typically a mixture of fissile molten salts.
44 citations
TL;DR: In this article, the authors considered the coupling between neutronics and thermohydrodynamics with simple but realistic hypotheses assumed to model the evolution of all the variables involved in the calculation.
40 citations
TL;DR: It is shown theoretically and then proved by numerical examples that the separation of the eigenvalues of the mathematical operator defining the problem can be taken as a good indicator of the importance of space effects in time-dependent conditions.
Abstract: The paper considers some physical aspects of the neutron space kinetics of critical and source-driven subcritical systems. The possibility of introducing some indicators to qualify the spatial natu...
38 citations
TL;DR: In this paper, the authors report an analytical solution for the point kinetics equations by the decomposition method, assuming that the reactivity is an arbitrary function of time, which can be straightly solved by the mentioned technique.
35 citations
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01 Jan 1998
561 citations
01 May 1978
TL;DR: In this article, the authors have considered the interests of both scientists and practising engineers, in addition to serving the needs of the academia, in order to avoid lengthy and repetitive discussions, that are available in many standard text books on reactor physics.
Abstract: This is cne of the r-are text books written in the discipline of Nuclear Reactor Analysis, where the author has considered the interests of both scientists and practising engineers, in addition to serving the needs of the academia. The most attractive feature of this book is a balanced treatment of theory and practice of the subject matter. The theoretical foundations of the reactor design methods are explained with simplified definitions and relevant practical illustrations. The author scans through quickly the traditional aspects of the so-called reactor physics and takes the reader through the details of the analytical aspects in a conventional manner. Hcwever, there is a definite departure from the classical method of approach in order to avoid lengthy and repetitive discussions, that are available in many standard text books on reactor physics. The chief departure fran tradition is the priority accorded to the treatment of the energy part of the problems as opposed to the spatial Dart normally devoted to by other authors . A similar unorthodox approach has been applied while dealing with the solution of the various equations by giving priority to computer oriented mrethods as opposed to the classical solutions.
507 citations
TL;DR: In this paper, the potential role of Partitioning and transmutation strategies for radioactive waste management in order to alleviate the burden on future deep geological repositories has been discussed, and some considerations are made on the use of Accelerator Driven Systems (ADS) in the frame of a progressive strategy from present nuclear power fleets to future systems, as studied, e.g. in the GENERATION-IV initiative.
171 citations
01 Jan 2006
TL;DR: The activities that have been executed in Animal House Facilities of IPEN, including the refurbishment project and the adaptation of the facilities are described.
Abstract: The production and the supply of high quality laboratory animals have fundamental importance for the accomplishment of vanguard scientific research, with reproducibility and universality. The quality of those animals depends, largely, of the available facilities for their production and lodging, to assure the demanded sanitary control and animals’ welfare, in agreement with the ethical principles that control the activity. The facilities also have to fill out other requirements, such as: the functionality of the environments to make possible the suitable and efficient handling of the animals, facilitating the execution of the routine activities; the respect to ergonomic principles to provide a safe environment and the operators’ well being. The facilities design is of vital importance so that the mentioned requirements can be reached. The project of the Nuclear and Energy Research Institute (IPEN) Animal House Facilities was accomplished in the year of 1964. However, by that time there were not the current recommendations with respect to the sanitary, genetic and environmental controls. The facility was planned with the objective of being a production unit and a local for keeping of defined animals from sanitary, genetic and environmental point of view. Nevertheless, the original unit drawing presents an unsuitable distribution of the area where animals are stocked and also different activities are performed. The Animal House Facilities occupy an area of 840 m, with one pavement, where the production areas and the stock of original animal models of the own Institution are distributed, as well as the maintenance of animals from other national or foreigner institutions. It supplies rats and mice for biological tests of radiopharmaceutical lots, produced in IPEN, before they be sent to hospitals and clinics spread out in Brazil, for use in Nuclear Medicine. It also supplies rats and mice for tests of odontological materials, for tests with growth hormones and for researches of new pharmaceuticals and radiopharmaceuticals, among others applications. Many of the animals models produced in IPEN are unique in Brazil and they constitute, therefore, an important patrimony that should be preserved. This paper describes the activities that have been executed in Animal House Facilities of IPEN, including the refurbishment project and the adaptation of the facilities.
128 citations