Projet de hadrontherapie a Lyon - Lignes de faisceau

Ce rapport decrit les lignes de faisceau du projet de hadrontherapie Rhone-Alpes, depuis la region d'extraction dans le synchrotron jusqu'aux chambres d'irradiation

The GUINEVERE Project for Accelerator Driven System Physics

paper 9414International audienceThe GUINEVERE project is part of the EUROTRANS Integrated Project of the 6th EURATOM Framework Programme. It is mainly devoted to ADS on-line reactivity monitoring validation, sub-criticality determination and operational procedures (loading, start-up, shut-down, ...) as a follow-up of the MUSE experiments. The project consists in coupling a fast lead core, set-up in the VENUS reactor at SCK*CEN Mol (B), with a GENEPI neutron source under construction by CNRS. To accommodate the accelerator in a vertical coupling configuration, the VENUS building is being heightened. The fast core will be loaded with enriched Uranium and will be moderated and reflected with solid lead (zero power experiment). For the purpose of the experimental programme, the neutron source has to be operated not only in pulsed mode but also in continuous mode to investigate the current-to-flux reactivity indicator in representative conditions of a powerful ADS. In this latter mode it is also required to make short beam interruptions to have access to the neutron population decrease as a function of time: from this spectrum it will be possible to apply different analysis techniques such as "prompt decay" fitting techniques and "source jerk" techniques. Beam interruptions will be repeated at a programmable frequency to improve time spectra statistics. Different sub-criticality levels (keff=0.99, 0.97, 0.95, ...) will be investigated in order to obtain a full set of data points for the final overall validation of the methodology. This paper describes the status of the experimental facility assembling, and the foreseen experimental programme to be started

PENGEMBANGAN PERANGKAT PEMBELAJARAN TEAM BASED LEARNING DALAM PEMBELAJARAN DARING UNTUK MENINGKATKAN HASIL BELAJAR SISWA

ABSTRAKPenelitian ini dilakukan disekolah SMA Negeri 4 Gorontalo dan bertujuan untuk menghasilkan perangkat pembelajaran yang berkualitas dengan menggunakan model Team Based Learning pada proses pembelajaran daring. Perangkat pembelajaran dikembangkan menggunakan model pengembangan ADDIE. Hasil penelitian terhadap perangkat menunjukan bahwa perangkat tersersebut berkualitas. Perangkat pembelajaran ini valid untuk digunakan dengan sedikit revisi Hal ini dapat dilihat berdarkan rata-rata hasil validasi dengan nilai 3,0-3,4. Efektivitas perangkat pembelajaran dapat dilihat dengan peningkatan hasil belajar siswa yang terdiri dari ranah kognitif pada pertemuan satu sampai pertemuan ketiga diperoleh N Gain iRat 0,66, 0,59, 0,51 dengan kriteria N Gain Sedang,  pada tRat diperoleh N Gain 0,7, 0,66, dan 0,61 untuk ranah sikap dengan rata-rata persentase sebesar 80,44%, serta rata-rata persentase ranah keterampilan sebesar 80,17%, dan hasil pengamatan aktivitas peserta didik selama tiga kali pertemuan yaitu sebesar 81,85% dengan kriteria sangat baik. Perangkat pembelajaran dikatakan praktis dilihat berdasarkan rata-rata hasil persentase keterlaksanaan selama tiga kali pertemuan yaitu sebesar  95%,  serta hasil angket respon guru dan peserta didik terkait perangkat pembelajaran pada proses pembelajaran daring mendapatkan respon positif. Kata kunci: hasil belajar; perangkat pembelajaran; team based learning. ABSTRACTThis research was conducted at Gorontalo State High School 4 and aims to produce quality learning tools using the Team Based Learning model in the online learning process. Learning tools are developed using the ADDIE development model. The results of research on the device showed that the device was of quality. Learning devices are said to be valid for use with a slight revision this can be seen based on the average validation result with a value of 3.0-3.4. The effectiveness of learning devices can be seen by the improvement of student learning outcomes consisting of cognitive realms at meetings one to the third meeting obtained N Gain iRat 0.66, 0.59, 0.51 with the criteria N Medium Gain, on tRat obtained N Gain 0.7, 0.66, and 0.61 for the realm of attitude with an average percentage of 80.44%, as well as an average skill realm percentage of 80.17%,  and the results of observation of student activities during three meetings, namely 81.85% with excellent criteria. The learning device is said to be practically seen based on the average results of the percentage of implementation during three meetings, which is 95%, as well as the results of teacher and student response questionnaires related to learning devices in the online learning process get a positive response. Keywords: learning outcomes; learning devices; team based learning