Conveners
Wed-Af-Or25: Particle Detector Magnets
- Alexey Dudarev (CERN)
- Tatsushi Nakamoto
CERN, in collaboration with its partner laboratories, is presently undertaking a design study of the Future Circular Collider including electron-positron and proton-proton collider variants. A 100 km long circular tunnel is foreseen featuring some 400 m below surface a few caverns for housing general purpose detectors probing e-e+ and p-p collisions. The design effort shall lead to a...
Neutrons have a magnetic moment of around 60 neV/T. The force on this magnetic dipole moment in a gradient field can be used to manipulate or store so called ultracold neutrons (UCN), free neutrons with very small kinetic energy and velocity. To create a magnetic storage vessel, one has to create a low field region surrounded by a high field region; only one spin state of the neutrons can be...
The Center for Axion and Precision Physics (CAPP) at the Institute for Basic Science (IBS) is setting up a major facility in Korea to search for Axion dark matter. Axion dark matter is partially converted to a very weak flickering electric field in the presence of a strong magnetic field applied with a resonating cavity. One key component of this proposed state-of-the art experiment will be...
An 18 T 70 mm cold bore high temperature superconducting (HTS) magnet was developed for axion detector system of Center for Axion and Precision Physics (CAPP) research center in Institute for Basic Science (IBS) in the Republic of Korea. No-insulation (NI) technique with metal cladding (MC) HTS tape was adopted for preventing damage from quenches. However, a NI magnet shows field lagging...
A Neutron Spin-Echo (NSE) -spectrometer measures small velocity changes that neutrons undergo upon scattering at a sample. The velocity changes are encoded/decoded by the neutrons spin precession in large magnetic field before and after the sample. In order to achieve maximum sensitivity and efficiency, both a high value and a high precision of the magnetic field integral before and after the...
The Muon Ionization Cooling Experiment (MICE) located at Rutherford Appleton Laboratory at England utilizes a superconducting solenoid system for the muon beamline that also holds particle tracking detectors and muon absorbers inside their bores. The solenoid system installation has been completed in summer of 2015 and after commissioning of the system it has been running successfully. This...
