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12–15 Feb 2026
Banff, Alberta
Canada/Mountain timezone
Early registration is CLOSED - late registration is still possible.

Radiation Shielding Design for the MOLLER Spectrometer Coils at Jefferson Lab

13 Feb 2026, 09:30
15m
Kinnear Centre Room (KC 303) (Banff, Alberta)

Kinnear Centre Room (KC 303)

Banff, Alberta

Contributed Oral Electroweak and Higgs physics Electroweak Physics

Speaker

Nazanin Roshanshah

Description

The MOLLER experiment at Jefferson Lab will measure the weak mixing angle with unprecedented precision via parity-violating Møller scattering. A major engineering challenge is mitigating radiation damage to the spectrometer coils and their S2-glass/CTD-403 insulation.

The upstream and downstream regions receive radiation levels beyond acceptable limits, necessitating the implementation of protective shielding. High-statistics, GEANT4-based simulations were performed to iteratively design and optimize shielding geometries within mechanical constraints. These studies achieved significant dose reduction and included analyses of symmetric versus asymmetric magnetic configurations, dominant radiation pathways called as hotspots, and the sensitivity of the design to small coil misalignments.

This work presents the resulting shielding strategy for the MOLLER upstream torus.

Your current academic level PhD student
Your email address nroshanshah@gmail.com
Affiliation University of Manitoba – Department of Physics & Astronomy
Supervisor name Juliette Mammei
Supervisor email jmammei@physics.umanitoba.ca

Primary author

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