Mariusz Sapinski Physics Page

Physics Page of Mariusz Sapinski

Beam Instrumentation physicist and leader of Beam Physics and Instrumentation for proton beams in Paul Scherrer Institut, responsible for beam profile and beam loss monitoring in proton facilities (HIPA and Proscan). In the past I have worked:

for SEEIIST and TERA foundation, as an accelerator physicist, on design of a new carbon therapy and helium therapy facilities,

in GSI, where I had the following main tasks:

operation of accelerator complex (deputy leader),

management and development of high-energy beam transfer lines (HEST machine coordinator),

machine data analysis, a link between operation and beam instrumentation,

at CERN, where I had the following main tasks:

responsibility for PS, SPS and LHC Ionization Profile Monitors,

coordination beam-induced quench tests of LHC magnets at the end of Run I,

generation and initial setting of Beam Loss Monitor thresholds,

coordination of development of Cryogenic Beam Loss Monitors,

simulation of thermal processes for Beam Wire Scanners,

in INFN/Rome, where I participated in Dark Matter search in cosmic rays in antideuteron channel for AMS experiment,

in IN2P3/Montpellier, where I worked on AMS detector itself (calorimeter and tracker) and on its capability to measure gamma rays, and

in IFJ Krakow (and CERN) where I worked on physics simulations of low-mass Higgs boson in ATLAS experiment and beam tests of TRT detector.

My main areas of expertise are: detector physics (ionization chambers, semiconductor detectors, Multi-Channel Plates, etc.), particle shower simulations (Geant4), beam-material interactions (thin targets, beam-induced damage and quenches of superconducting magnets), data analysis (ROOT, python, Mathematica, machine learning) and accelerator physics (beam optics calculations).

publications	presentations	scientific codes
reports&students works	useful infos	links
AMS-02(pl)	Wire Scanner project
CERN BLM system	CERN Medical applications meeting	SEEIIST
BIQ	PyTT - thin target simulation	LHC BGI
BGV	PS BGI	PhD thesis (PostScript)
thin targets (local)	cryogenic semiconductors (local)	IPMSim TWiki
GSI Operation	Publications of 8131 group (intranet)<	NIMMS page

^{[updated: December 14, 2025]}