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: Leslie Karen Fanola Guarachi email: fanolag@to.infn.it ciclo: XXVIII year completed (1,2 or 3):1 supervisor: Prof. Roberto Cirio ------------------------------------------- GRADUATE SCHOOL COURSES (only completed courses, with examination passed in the year) code: 08 title: Quantum imaging instrumentation in physics and nuclear medicine teacher: Prof. Pierre Jarron hours: 12 ------------------------------------------- COURSES FROM OTHER GRADUATE SCHOOLS (only completed courses, with examination passed in the year) school: Scuola di Specializzazione in Fisica Medica title: Basi fisiche della diagnostica per immagini con NMR teacher:Prof. Vincenzo Monaco hours:8 school: Scuola di Specializzazione in Fisica Medica title: Strumentazioni e misure di radioattività teacher: Prof. Roberto Cirio hours: 6+lab ------------------------------------------- UNDERGRADUATE COURSES (Laurea Magistrale) (only completed courses, with examination passed in the year) title:Fisica Medica teacher:Prof.ssa Cristiana Peroni hours: 60 title:Applicazioni Techniche di Fisica Nucleare teacher:Prof. Argirò hours: 60 ------------------------------------------- SUMMER SCHOOLS, INTERNATIONAL SCHOOLS (only those attended in the current year) title:Scuola F. Bonaudi place:Dipartimento di Fisica, Via Pietro Giuria,1, Torino webpage:http://www.gsr.unito.it/?Main days:4 talk or poster (Y/N): Y ------------------------------------------- CONFERENCES, WORKSHOP (only those attended in the current year) title: ”Incontro con la fisica medica: una disciplina antica una scienza giovane” place: Accademia delle Scienza- Via Maria Vittori 3, Torino webpage:www.to.infn.it/it/seminari days:1 talk or poster (Y/N): N title: ”IORT mobile con fotoni di bassa energia: Intrabeam e le nuove macchine di terapia” place: IRCC Candiolo, Strada Provinciale, 142 km 3.95, Candiolo webpage:www.ircc.it days:1 talk or poster (Y/N): N title: ”LabVIEW/NI CompactDAQ” place: Sala Johannesburg,Enviroment Park di Via Livorno, 58, Torino webpage:italy.ni.com talk or poster (Y/N): N title:XCIX Congresso Nazionale Società Italiana di Fisica place:SISSA, Via Bonomea 265, Trieste webpage:www.sif.it/attivita/congresso/xcix days:5 talk or poster (Y/N): Y title:XCIX 8º Congresso Nazionale AIFM place: Torino webpage:www.aifm2013.org/ days:4 talk or poster (Y/N): N title: L’imaging molecolare: diagnosi nell’era delle cure mediche personalizzate place: Torino webpage:www.aifm2013.org/Programma%20Simposio%20satellite.pdf days: 1 talk or poster (Y/N): N ------------------------------------------- VISITS AND STAGES (only those done in the current year) institution: INFN sezione di Torino Via Sette Comuni. place:Via Sette Comuni,56, Torino starting date: 11/01/2013 days: 1 institution: CNAO (Centro Nazionale di Adroterapia Oncologica) place:Strada Campeggi, 53, Pavia starting date:05/02/2013 days:1 institution: IRCC (Institute for Cancer Research and Treatment at Candiolo) place: Strada Provinciale 142 km 3.95, Candiolo, Torino. starting date: 15/02/2013 days: 1 institution:DE.TEC.TOR.S.r.l place: Via Livorno 60 c/o Enviroment Park, Torino starting date: 28/02/2013 days: 1 institution: CNAO (Centro Nazionale di Adroterapia Oncologica) place: Strada Campeggi, 53, Pavia starting date: 11/04/2013 days: 1 institution: CNAO (Centro Nazionale di Adroterapia Oncologica) place: Strada Campeggi, 53, Pavia starting date: 11/06/2013 days: 2 institution: CNAO (Centro Nazionale di Adroterapia Oncologica) place: Strada Campeggi, 53, Pavia starting date: 29/06/2013 days: 2 institution:DE.TEC.TOR.S.r.l place: Via Livorno 60 c/o Enviroment Park, Torino starting date: 05/08/2013 days: 4 institution:DE.TEC.TOR.S.r.l place: Via Livorno 60 c/o Enviroment Park, Torino starting date: 24/09/2013 days: 2 --------------------------------------------------- Research activity/Publications in the current year (max characters 2500) As a student of PhD at Torino University, my research activity during this year was involved with the construction of Multi-Gap Ionization Chamber. The project aims to build a Multi-Gap Ionization Chamber to measure on-line high-intensity charged particle beams. The reason is because nowadays new compact accelerators for charged particles beam therapy have been proposed where high intensities occur in short pulses. These beams are characterized by a pulse frequency of 0.2-1 kHz, pulse length between 5-20 µs and with 107-108 protons per pulse which correspond to an average current during the pulse of 1-25 µA. For high intensity beams, in the ionization chamber recombination phenomena becomes very significant and reliable measurement correction method is necessary. By using a Multi-Gap Ionization Chamber that phenomena can be corrected. The device includes at least two parallel ionization chambers (intended to be three in the future) with independent anodes and cathodes separated by a gap filled with nitrogen gas. The gaps are designed to be different in order to have a proportional charge collection. Due to the different collection efficiency probability among the chambers, we can determine the total ionization charge and correct the recombination. In order to measure the current, we plan to modify the chip developed by INFN-Torino group. The TERA CHIP 08 is a charge to count converter with a maximum counting frequency of 20MHz, charge quantum selectable between 50fC to 350fC and it is able to read a maximum current of 7µA. Therefore, the new TERA CHIP (09) will have the characteristics of maximum counting frequency or 40MHz or more, charge quantum selectable between 50fC to 350fC and able to read four times or more the maximum current of the old TERA chip. Particularly in this year, I assembled the multi-gap ionization chamber, this is done by a process that requires accuracy because each anode (3) and cathode (4) must been glued following a specific procedure to a vetronite frame. Then, I’m in the half part to connect them to a specific circuit in order to measure the current as we are searching for better read-out electronics for high intensity beams. Moreover, I was in charge to characterize the old TERA chip for pulsed current and high intensities with the new FPGA in order to design a new chip available to read high intensity beams. Furthermore, I made a simulation in order to get the output charge error that depends on the number of channels and I’m in the process to make a program which can give the best distances between gaps and the voltage applied in order to get the best recombination efficiency. Finally, I made two presentations in the year in two conferences explaining the purpose of the project and the present status. BE AWARE: research activity and Pubs are not evaluated as didactic credits, but are requested to trace the PhD students' career