This work aims to improve the cosmic ray reconstructions in two ways. The first is to investigate and solve the angular resolution problem that occurred in the reconstruction of cosmic rays at high energies.

The IceCube collaboration utilizes a particle detector in Antarctica to en- hance understanding of the universe via neutrinos.

The first part of this dissertation describes and tests a single-particle ice growth model that evolves both ice crystal mass and shape as a result of vapor growth and riming.

This second open access volume of the handbook series deals with detectors, large experimental facilities and data handling, both for accelerator and non-accelerator based experiments.

The IceCube Neutrino Observatory is a neutrino detector at the South Pole that has 5160 optical sensors that observe light deposited by incoming particles interacting with the Antarctic ice.

In this work, an algorithm is developed to retrieve the bounding ellipsoidal shapes and their orientations of ice aggregates from multiple projections/images, adding additional complexities compared to the oft-assumed, but unsatisfactory ...

Proceedings of the 13th ICATPP Conference S. Giani. tion describing the shower front . With this reconstruction a core position resolution of about 8 m and an angular resolution better than 0.5 ° was ob- tained for sufficiently high ...

... reconstruction a core position resolution of about 8 m and an angular resolution better than 0.5 ° was ob- tained for sufficiently high energies with the 26 - station configuration ... events in IceTop and IceCube 4.2. Muons in IceTop.

The handbook centers on detection techniques in the field of particle physics, medical imaging and related subjects. It is structured into three parts.