Short Baseline Neutrino Programme WA 104ICARUS detector has

Short Baseline Neutrino Programme • WA 104/ICARUS detector has been refurbished at CERN for the Neutrino Physics at the Short Baseline Neutrino (SBN) Facility at the Fermilab National Accelerator Laboratory. • Providing definite answer to the sterile neutrino puzzle by studying short baseline neutrino oscillations in the 1 e. V mass range. • Detector is also exposed to a large flux of cosmic rays. • 3 -year running period 1. 32 x 108 beam spills, each 1. 6 µs long in total 211 s of beam time • expect 2. 5 x 106 uncorrelated cosmic events overlapping with the beam spill. • within a 1 -ms acquisition time, an average of 12 uncorrelated cosmic events overlapping with a neutrino event expected. • An important background in the e analysis comes from photons produced by cosmic muons propagating through the detector and nearby materials. • If the photon converts anywhere inside active volume and the same or a different cosmic event is in coincidence with the beam spill, the photon could be mistaken for the in-spill event. • The muon that generated the photon may or may not pass through the active volume. To mitigating the cosmic background a cosmic ray tagging system is introduced. Umut KOSE, Paola SALA

A Cosmic Ray Tagger (CRT) system: • The design is simple and robust • composed of plastic scintillator bars assembled into modular square structures. • Each module containing two planes of 8 scintillator bars each with orthogonal orientation. • Each scintillator bar will be 184 cm long, 23 cm wide and 1 to 1. 5 cm thick. • The light produced in the scintillator is readout by two wavelengths shifting fibers glued into the two grooves on the surface and readout by the Silicon Photomultiplier (Si. PM). Umut KOSE, Paola SALA 5 scintillating planes made of 186 x 186 cm 2 of modules. • 84 modules right below the concrete plug, • 38 modules inclined about 30 o • In total 125 modules (including 3% spare)

• Ja. Eun Kim (김자은) • Seoul, South Korea • Seoul National University • Physics & Computer Science • Interested in cosmic ray muons: • Have been trying to restore an old spark chamber at school • Set up a basic muon counter with scintillator plates, NIMs and PMTs • Excited to learn about Si. PM • Happy to be with you!

Project 1: The simulation of light propagation in the Scintillator bar with fiber readout Si. PM. Tool: Set-up: • Plastic Scintillator bar with two grooves on the surface, • wavelength shifting fibers, • Covering grooves with mylar foil • Si. PMs Aim: • Understanding timing performance of the system • Compare the simulation results with data Umut KOSE, Paola SALA 10 -15 mm

Yohashama P Sivagnana Kumaran Malaysia 3 rd year Bsc, majoring in physics at University of Malaya Conducted my final year project on the use of quantum walks for quantum information processing

Project: 2 • Performing characterization test on Silicon Photo Multipliers (compare with different type of Si. PMs): Dark count rate Cross-talk Gain Temperature dependence (using temperature controlled black box) Photon detection efficiency (use of monochromatic light source in the dark room) • Configuration and test of CRT Front-end-Board: configure the board, check whether all the channels are active, pedestal scan. Insert all infos into the database. Set-up: Black box LED pulser Si. PMs Umut KOSE, Paola SALA LED Pulser Oscilloscope FEB

Bader Al-Dossari Saudi Arabia Major in Physics & Minor in Mathematics King Fahd’s University for Petroleum and Minerals Basic Modelling of Charged Particle Trajectories in an Oscillating Magnetic Field with an Induced Electric Field

Project: 3 Muon flux measurement in the North Area extension • NP 02 and NP 04 prototypes for DUNE detectors, • Soon data teking with cosmics and charged particle beam. • The prototypes will be exposed as well to muons originating all along the transfer lines from the primary target to the North Area experimental zones. • These muons will depend on the operational settings of the different beamlines, thus being impossible to simulate. • A measurement campaign is to characterize the muon background in different operating conditions. • Set-up: • A scintillator telescope mounted on a movable support • Read out by Photo Multiplier Tube • Lab. View programing, data analysis • June 29, setting up the scintillator telescope in the North Area. • From next week data taking at several different positions. Umut KOSE, Paola SALA, Filippo RESNATI, Elzbieta NOWAK