An X-ray mapper for the Mu2e experiment

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• 作者：S.H. Oh ; C. Wang
• 关键词：Mu2e ; X-ray scanner ; Wire ; Straw mapper ; Straw tracker
• 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• 出版年：2016
• 出版时间：21 January 2016
• 年：2016
• 卷：807
• 期：Complete
• 页码：64-68
• 全文大小：1191 K

文摘

We report on the construction and performance of a scanner using a collimated x-ray beam to find the positions of wires, straws, slots and spheres. The technique is based on measuring the transmission rate of the beam, and their positions can be determined ~25 μm accuracy. The spheres or slots attached to the detector can also be optically surveyed externally to transfer the coordinates of wires and straws to other detector systems. The scanner was developed for the Mu2e straw tracker but may have a wide range of applications.