Karlsruhe School of Elementary Particle and Astroparticle Physics: Science and Technology (KSETA)

Julian Saffer

Information

Institute: ETP
Building: 425 (CN)
Office: 125
Coordinates: N 49° 05.685 E 008° 25.999
E-Mail: julian.saffer@kit.edu

PhD Topic

Composition and Spectrum of Cosmic Rays around and below the Knee with IceCube and IceTop

Publications

Title Link
Study of Mass Composition of Cosmic Rays with IceTop and IceCube P. Koundal, M. Plum, J. Saffer PoS Link
Towards the Composition of sub-PeV Cosmic Rays at IceCube J. Saffer PoS Link

Conferences and Talks

Title Details Location Date + Link
IceCube Fall Collaboration Meeting 2020 - Madison, WI, USA (Virtual Meeting) Sep 14-25, 2020
Cosmic Rays and Neutrinos in the Multi-Messenger Era - Paris, France (Virtual Conference) Dec 7-11, 2020
DPG Spring Meeting 2021 Talk: "Low-Energy Cosmic Ray Composition Spectra with IceCube and IceTop in Synergy" Dortmund, Germany (Virtual Meeting) Mar 15-19, 2021
IceCube Spring Collaboration Meeting 2021 - Aachen, Germany (Virtual Meeting) Mar 17-26, 2021
International Cosmic Ray Conference (ICRC) 2021 Poster and Proceeding: "Study of mass composition of cosmic rays with IceTop and IceCube" (P. Koundal, M. Plum, J. Saffer) Berlin, Germany (Virtual Conference) Jul 12-23, 2021
IceCube Fall Collaboration Meeting 2021 - Madison, WI, USA (Virtual Meeting) Sep 20-23, 2021
Workshop on Machine Learning for Cosmic Ray Air Showers Talk: "Composition of 100 TeV - 100 PeV Cosmic Rays with IceCube and IceTop using Boosted Decision Trees" Newark, DE, USA (University of Delaware, Bartol Research Institute) Jan 31 - Feb 3, 2022
DPG Spring Meeting 2022 Talk: "Low-Energy Cosmic Ray Composition with IceCube and IceTop" Heidelberg, Germany (Virtual Meeting) Mar 21-25, 2022
ISAPP School 2022 - Astrophysical sources of cosmic rays Short presentation on PhD topic Orsay, France (Université Paris-Saclay, Institut Pascal) Mar 28 - Apr 8, 2022
IceCube Spring Collaboration Meeting 2022 - Brussels, Belgium (Hybrid Meeting) May 16-20, 2022
IceCube Fall Collaboration Meeting 2022 Talk: "Simulation and Deep Learning for Low-Energy Cosmic Ray Composition" Madison, WI, USA (University of Wisconsin) Sep 18-23, 2022
IceCube Spring Collaboration Meeting 2023 Talk: "Level 4 Processing for Coincident Air Shower Events" Aachen, Germany (RWTH Aachen University) Mar 12-17, 2023
International Conference on Topics in Astroparticle and Underground Physics (TAUP) 2023 Talk and Proceeding: "Towards the Composition of sub-PeV Cosmic Rays at IceCube" Vienna, Austria (University of Vienna) Aug 28 - Sep 1, 2023
DPG Spring Meeting 2024 Talk: "Sub-PeV Cosmic-Ray Measurements at IceCube" KIT Mar 4-8, 2024
IceCube Spring Collaboration Meeting 2024 Talk: "Towards a Low-Energy Composition Analysis & Checks of the new MC" Münster, Germany (WWU Münster) Mar 17-22, 2024

KSETA Courses

Title Lecturer
Statistical methods in particle physics data analysis A. Meyer (DESY) Mar 2021
Introduction to astroparticle physics D. Kang (IAP), D. Veberic (IAP) Mar 2021
Introduction to Machine Learning and Deep Learning S. Kast (Bosch) Oct 2021
Broad introduction into modern experimental particle physics F. Hartmann (KIT) Oct 2021
Neutrino mass phenomenology W. Rodejohann (MPIK) Oct 2021
Multi-Messenger Data Analysis M. Ahlers (NBI, Copenhagen) Mar 2023
Philosophy of Science Rafaela Hillerbrand (KIT) Nov/Dec 2023

Teaching and Supervision

• Oct 2020 - Mar 2021 Supervision in the advanced nuclear physics lab course
• Apr 2021 - Sep 2021 Tutor in Moderne Experimentalphysik III (Physik VI, Teilchen und Hadronen)
• Jul 2021 - Sep 2021 Supervision of summer intern student
• Oct 2021 - Mar 2022 Supervision in the advanced nuclear physics lab course
• Apr 2022 - Sep 2022 Tutor in Computergestützte Datenauswertung
• Jul 2022 - Jan 2023 Supervision of bachelor student
• Jun 2023 - Sep 2023 Co-Supervision of bachelor student

Bachelor's and Master's Theses

Title Supervisors Submission
Bachelor's Thesis Muon Veto Study Comparing pDOM and mDOM for IceCube-Gen2 Prof. Dr. Gisela Anton & Dr. Thorsten Glüsenkamp Sep 2017
Master's Thesis X-Ray Phase-Contrast Imaging of Laser-Driven Plasma Shocks Prof. Dr. Stefan Funk Jan 2020