Graduate School in Physics and Astrophysics ------------------------------------------- ANNUAL REPORT ------------------------------------------- Fill with a text editor (without TAB or formatting) Repeat fields for each course as necessary. ------------------------------------------- name: Oriol Sans Planell email: oriol.sans.planell@gmail.com ciclo: XXXIV year completed (1,2 or 3): 3 supervisor: Marco Costa ------------------------------------------- GRADUATE SCHOOL COURSES (only completed courses, with examination passed in the year) code: title: Introduction to FPGA programming using Xilinx Vivado and VHDL teacher: Luca Pacher hours: 24 ------------------------------------------- COURSES FROM OTHER GRADUATE SCHOOLS (only completed courses, with examination passed in the year) school: title: teacher: hours: ------------------------------------------- UNDERGRADUATE COURSES (Laurea Magistrale) (only completed courses, with examination passed in the year) title: teacher: hours: ------------------------------------------- SUMMER SCHOOLS, INTERNATIONAL SCHOOLS (only those attended in the current year) title: CNL's Virtual Neutron Scattering School place: Online webpage: https://lists.neutronsources.org/pipermail/neutron/2020/008619.html days: 5 talk or poster (Y/N): N title: AI4NP Winter School 2021 place: Online webpage: https://indico.jlab.org/event/409/ days: 5 talk or poster(Y/N): N ------------------------------------------- CONFERENCES, WORKSHOP (only those attended in the current year) title: XXXII Congresso Annuale SISN place: Online webpage: www.sisn.it days: 2 talk (Y/N): Y poster (Y/N): N title: Python Training at IKON20 place: Online webpage: https://indico.esss.lu.se/event/2469/page/475-python-training-ikon days: 1 talk (Y/N): N poster (Y/N): N ------------------------------------------- VISITS AND STAGES (only those done in the current year ) institution: place: starting date: days: --------------------------------------------------- Research activity/Publications in the current year (max characters 2500) Design of a novel compact neutron collimator (August 2021): In this work the concept of a novel slow neutron collimator and the way to operate it are presented. The idea is based on the possibility to decouple the device's field-of-view from its collimation power. A multi-channel geometry is proposed consisting of a chess-board structure where highly neutron-absorbing channels are alternated to air channels. A borated polymer was purposely developed to produce the attenuating components in the form of square-sectioned long rods. A scalable structure consisting of multiple collimation sectors can be arranged. The geometrical parameter L/D, corresponding to the ratio between the length of a channel and its width, defines the collimation power. Several sectors can be arranged one after the other to reach relevant collimation powers. Each sector, 100 mm long, is composed by several channels with D= 2.5 mm corresponding to an L/D coefficient of 40. First results of the ANET neutron collimator (submitted): This paper presents the first determination of the spatial resolution of the ANET Compact Neutron Collimator, obtained with a measuring campaign at the LENA Mark-II TRIGA reactor in Pavia. This novel collimator consists of a sequence of collimating and absorbing channels organised in a chessboard-like geometry. It has a scalable structure both in length and in the field of view. It is characterized by an elevated collimation power within a limited length. Its scalability and compactness are added values with respect to traditional collimating system. The prototype tested in this article is composed of 4 concatenated stages, each 100𝑚𝑚 long, with a channel width of 2.5𝑚𝑚, delivering a nominal L/D factor of 160. This measuring campaign illustrates the use of the ANET collimator and its potential application in neutron imaging for facilities with small or medium size neutron sources. There have been 6 weeks of measurements at the Pavia LENA reactor with the CHnet-NICHE project, plus 3 weeks of measuring campaign for the ANET project. I've also participated at a 10-day experiment at the PSI facilities BOA and ICON for the ANET project. BE AWARE: visits and stages,research activity and pubs are not evaluated as didactic credits, but are requested to trace the PhD students' career