IPAC'23 - Student Poster Session Guide

IPAC’23 / STUDENT POSTER SESSION GUIDE 42 Student Poster Session experimental results. SUPM077 A Space Charge Forces analytical model for emittance compensation Martina Carillo (Sapienza University of Rome) . Andrea Mostacci, Enrica Chiadroni, Luigi Palumbo (Sapienza University of Rome), James Rosenzweig (University of California, Los Angeles), Bruno Spataro, Lucia Giuliano, Luigi Faillace (Istituto Nazionale di Fisica Nucleare), Mauro Migliorati (Istituto Nazionale di Fisica Nucleare - Sez. Roma 1), Fabio Bosco (La Sapienza University of Rome). Space charge forces represent main induced effects in an RF-injector that degrade the beam quality. In this scenario the laser distribution sent on the photocathode acquires an important role in the emittance compensation process, as the slice analysis shows. A novel model of space charge forces is proposed for bunch with arbitrary charge distribution to derive expressions of self-induced forces. As the performance of the fields near the cathode is under present analysis, we can investigate use of this model in low charge regime. Further, the mod- el has been benchmarked with the behavior of the distributions present in the literature and studied for new ones. It has also been applied for the study of the optimization of a C-band hybrid photoinjector now being commissioned, thus explaining the factor two reduction of the emittance observed at the exit of the gun by changing the initial distribution at the cathode. SUPM078 Study of the Transfer and Matching Line for a PWFA-driven FEL Pasqualina Iovine (Sapienza University of Rome) . Alberto Bacci, Alessio Del Dotto, Angelo Biagioni, Anna Giribono, Cristina Vaccarezza, Lucio Crincoli, Marcello Rossetti, Massimo Ferrario, Riccardo Pompili, Stefano Romeo (Istituto Nazionale di Fisica Nucleare), Enrica Chiadroni (Sapienza University of Rome). The development of compact accelerator facilities providing high-brightness beams is one of the most challenging tasks in the field of next-generation compact and cost affordable particle accelerators. Recent results obtained at SPARC_LAB show evidence of the FEL laser by a com- pact (3 cm) particle beam plasma accelerator. This work is carried out in the framework of the SPARC_LAB activities concerning the R&D on particle-driven plasma wakefield accelerators for the realization of new compact plasma based facilities i.e EuPRAXIA@SPARC_LAB. The work here presented is a theoretical study demonstrating a possible scheme concerning the imple- mentation of an innovative array of discharge capillaries, operating as active-plasma lenses, and one collimator to build an unconventional transport line for bunches outgoing from plas- ma accelerating module. Taking advantage of the symmetric and linear focusing provided by an active-plasma lens, the witness is captured and transported along the array without affecting its quality at the exit of the plasma module. At the same time the driver, being over-focused in the same array, can be removed by means of a collimator. SUPM079