Informatics in the French Secondary Curricula: Recent Moves and Perspectives

International audienceIn France, since 2010, the situation regarding informatics education in secondary school has changed: Algorithmic was introduced in mathematics curricula at grade 11 and an elective Computer Science course (called ISN) has been introduced at grade 12 (Fall 2012). These changes have encouraged some initiatives for the promotion of informatics education, among them the French 2012-Bebras contest. However, the 'informatics as a tool approach' continues to guide decision makers in education. This context renews the issue of informatics education (including Computer Science) for all students at the different levels of secondary school. We submit some ideas to re-open the debat

Calibration of the Fast Neutron Imaging Telescope (FNIT) Prototype Detector

The paper describes a novel detector for neutrons in the 1 to 20-MeV energy range with combined imaging and spectroscopic capabilities. The Fast Neutron Imaging Telescope (FNIT) was designed to detect solar neutrons from spacecraft deployed to the inner heliosphere. However, the potential application of this instrument to Special Nuclear Material (SNM) identification was also examined. In either case, neutron detection relies on double elastic neutron-proton (n-p) scattering in liquid scintillator. We optimized the design of FNIT through a combination of Monte Carlo simulations and lab measurements. We then assembled a scaled-down version of the full detector and assessed its performance by exposing it to a neutron beam and an SNM source. The results from these tests, which were used to characterize the response of the complete FNIT detector to fast neutrons, are presented herein

Test and simulation of a Fast Neutron Imaging Telescope

The capability to detect fast neutrons with good angular and energy resolutions is gaining increased interest for different applications such as non-destructive testing, homeland security, and space-borne solar physics. To the latter aim, we recently developed and tested a novel type of instrument, the Fast Neutron Imaging Telescope (FNIT), for neutron spectroscopy and imaging in the 1-20 MeV range. Assessments of the instrument prototype performances, based on Monte Carlo simulations and on results from calibration tests performed in a monoenergetic neutron beam, are presented here. The purpose of the study is twofold: (1) to provide a comprehensive characterization of the prototype response, notably in terms of efficiency, event selection, energy and angular resolution; (2) to validate the simulation tool to support data analysis and reduction, and also to help in the design of more complex fast neutron telescopes