Beam Position Reconstruction for the g2p Experiment in Hall A at Jefferson Lab
| Autor: | John Musson, Trent Allison, V. Sulkosky, Karl Slifer, Jixie Zhang, Pengjia Zhu, Ryan Zielinski, Chao Gu, T. Badman, A. Camsonne, Yunxiu Ye, M. Huang, Jie Liu, Kalyan Allada, Melissa Cummings, Jian-Ping Chen |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Physics
Nuclear and High Energy Physics Physics - Instrumentation and Detectors business.industry Measure (physics) FOS: Physical sciences Particle accelerator Kinematics computer.file_format Instrumentation and Detectors (physics.ins-det) law.invention Optics Position (vector) law Raster graphics business Instrumentation Event (particle physics) computer Beam (structure) |
| Popis: | Beam-line equipment was upgraded for experiment E08-027 (g2p) in Hall A at Jefferson Lab. Two beam position monitors (BPMs) were necessary to measure the beam position and angle at the target. A new BPM receiver was designed and built to handle the low beam currents (50–100 nA) used for this experiment. Two new super-harps were installed for calibrating the BPMs. In addition to the existing fast raster system, a slow raster system was installed. Before and during the experiment, these new devices were tested and debugged, and their performance was also evaluated. In order to achieve the required accuracy (1–2 mm in position and 1–2 mrad in angle at the target location), the data of the BPMs and harps were carefully analyzed, as well as reconstructing the beam position and angle event by event at the target location. The calculated beam position will be used in the data analysis to accurately determine the kinematics for each event. |
| Databáze: | OpenAIRE |
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