15 January 2018 from 14:30 to 15:30

PhD Defence: H. Wang

PhD Defence: Prototype Studies and Simulations for a Forward Si-W Calorimeter at the Large Hadron Collider

A prototype of a Si-W EM calorimeter was built with Monolithic Active Pixel Sensors as the active elements. With a pixelsize of 30 μm it allows digital calorimetry, i.e. the particles' energy is determined by counting pixels, not by measuring the energy deposited. Although of modest size, with a width of only four Moliere radii, it has 39 million pixels. We describe the construction and tuning of the prototype and present results from beam tests and compare them with predictions of GEANT-based Monte Carlo simulations. We show the shape of showers caused by electrons in unprecedented detail. Results for energy and position resolution will also be given.

Start date and time
15 January 2018 14:30
End date and time
15 January 2018 15:30
PhD candidate
H. (Hongkai) Wang
Dissertation
Prototype Studies and Simulations for a Forward Si-W Calorimeter at the Large Hadron Collider
PhD supervisor(s)
prof.dr. T. Peitzmann
Co-supervisor(s)
dr. G.J.L. Nooren