Abstract

In the BM@N experiment with a fixed target, a beam profilometer is used to tune the ion beam extracted from the Nuclotron accelerator (Joint Institute for Nuclear Research, Dubna), and a beam tracker is used to determine the reaction plane. The profilometer and tracker consist of coordinate planes based on thin (175 μm) double-sided silicon strip detectors placed in front of the target inside a vacuum beam pipe. The physical program of the BM@N experiment includes the use of a wide variety of accelerated ions (from carbon to gold with energies of up to 4 GeV/nucleon). To detect signals in a large dynamic range, the following two modifications of detector electronics are chosen: one with high amplification for light ions, and another one with low amplification for heavy ions. This article describes the design and main parameters of the profilometer and tracker.

中文翻译：

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BM@N 实验中硅光束跟踪仪和光束轮廓仪的开发

摘要

在固定目标的 BM@N 实验中，使用射束轮廓仪来调整从 Nuclotron 加速器（杜布纳联合核研究所）提取的离子束，并使用射束跟踪器来确定反应平面。轮廓仪和跟踪器由基于薄 (175 μm) 双面硅条探测器的坐标平面组成，探测器放置在真空束管内的目标前面。BM@N 实验的物理程序包括使用各种加速离子（从碳到金，能量高达 4 GeV/核子）。为了检测大动态范围内的信号，选择了以下两种检测器电子装置的改进：一种对轻离子具有高放大率，另一种对重离子具有低放大率。