基于改进移动相机传感器的亚微米分辨率反抗子湮灭顶点检测
仪器与探测器
2024-06-25 v1
摘要
AEgIS实验的主要目标是精确测量抗氢原子在地球引力场中的自由落体。为此，需要将冷约50K的抗氢原子束通过两块形成米氏偏振仪的网格，然后湮灭于位置敏感探测器，以实现对湮灭顶点相对于网格垂直位置的亚微米级精度。本文引入一种基于修改移动相机传感器的顶点探测器，并实验演示其可测量抗抗子湮灭位置，精度为，相较于现有反抗子顶点检测的前沿水平实现了35倍的改进。重要的是，这些抗抗子检测方法直接适用于抗氢原子。此外，传感器对光的灵敏度使其能够对米氏偏振仪进行原位校准，从而显著降低系统误差。该传感器成为实现AEgIS科学目标的突破性技术，已被选为开发大面积探测器用于进行抗氢原子重力测量的基础。
引用
@article{arxiv.2406.16044,
title = {Real-time antiproton annihilation vertexing with sub-micron resolution},
author = {M. Berghold and D. Orsucci and F. Guatieri and S. Alfaro and M. Auzins and B. Bergmann and P. Burian and R. S. Brusa and A. Camper and R. Caravita and F. Castelli and G. Cerchiari and R. Ciuryło and A. Chehaimi and G. Consolati and M. Doser and K. Eliaszuk and R. Ferguson and M. Germann and A. Giszczak and L. T. Glöggler and Ł. Graczykowski and M. Grosbart and F. Guatieri and N. Gusakova and F. Gustafsson and S. Haider and S. Huck and C. Hugenschmidt and M. A. Janik and T. Januszek and G. Kasprowicz and K. Kempny and G. Khatri and Ł. Kłosowski and G. Kornakov and V. Krumins and L. Lappo and A. Linek and S. Mariazzi and P. Moskal and D. Nowicka and P. Pandey and D. Pęcak and L. Penasa and V. Petracek and M. Piwiński and S. Pospisil and L. Povolo and F. Prelz and S. A. Rangwala and T. Rauschendorfer and B. S. Rawat and B. Rienäcker and V. Rodin and O. M. Røhne and H. Sandaker and S. Sharma and P. Smolyanskiy and T. Sowiński and D. Tefelski and T. Vafeiadis and M. Volponi and C. P. Welsch and M. Zawada and J. Zielinski and N. Zurlo},
journal= {arXiv preprint arXiv:2406.16044},
year = {2024}
}
备注
21 pages, 4 figures, 2 tables