Speaker
Andrea Capra
(TRIUMF (CA))
Description
The recent measurement of the antihydrogen gravitational acceleration [Nature 621, 716–722 (2023)] relies upon the detection of the annihilation of the anti-atoms that are released from their magnetic confinement and that move under the influence of gravity. The ALPHA-g magnetic trap is surrounded by a Time Projection Chamber designed to identify the annihilation products and to reconstruct the annihilation position. The TPC is called “radial”, or rTPC, because the drift field is perpendicular to the trap axis and, therefore, to the magnetic field of the external field. The design, construction and commissioning of this detector are the focus of this presentation.
Author
Andrea Capra
(TRIUMF (CA))
