20–25 May 2018
University of Oregon
US/Pacific timezone

Predicting hadron-specific damage from fast hadrons in crystals for calorimetry

24 May 2018, 08:30
20m
Ballroom, Erb Memorial Union (University of Oregon)

Ballroom, Erb Memorial Union

University of Oregon

Eugene, Oregon USA

Speaker

Francesca Nessi-Tedaldi (ETH Zurich, Switzerland)

Description

Fast hadrons have been observed to cause a cumulative damage in Lead Tungstate and LYSO crystals. The underlying mechanism has been proven to be the creation of fission tracks, which act as scattering centers, thus reducing the light collection efficiency. For calorimetry applications in an environment where large, fast hadron fluences are anticipated, predictions about damage in crystals are of great importance for making an informed choice of technology.
In the study presented here, simulations using the FLUKA package have been performed in Lead Tungstate, LYSO and Cerium Fluoride, and their results have been compared with measurements. The agreement that is found between simulation results and experimental measurements allows to conclude that the damage amplitude in a given material can be predicted with a precision that is sufficient to anticipate the damage expected during detector operation.

Secondary topics

Hadron damage, Simulation

Applications Design concepts for future calorimeter at the energy frontier
Primary topic Crystals

Authors

Guenther Dissertori (ETH Zurich, Switzerland) Cristina Martin Perez (ETH Zurich, Switzerland) Francesca Nessi-Tedaldi (ETH Zurich, Switzerland)

Presentation materials