论文标题
使用大厅探针在迷你探测器上进行磁场测量
Magnetic field measurements on the mini-ICAL detector using Hall probes
论文作者
论文摘要
提议在INO建造的磁化51 k顿铁量热计（ICAL）检测器的设计侧重于检测1-20 GEV MUON。磁场将使从$ν_μ$的电荷电流相互作用产生的$μ^ - $和$μ^+$的动量进行测量，并在检测器中的铁中分别在铁中分别在铁中，从而确定了中微子质量/等级的确定。因此，尽可能准确地确定磁场很重要。迷你探测器是一个85吨的ICAL原型，该原型在印度南部的Madurai运营。我们在这里描述了使用Hall Sensor PCB在微型机构中对磁场进行的首次测量。开发了用于使用电磁体校准霍尔探针传感器的设置。读取系统是使用Arduino纳米板设计的，用于选择安装在PCB上的大厅探针的通道，并将模拟电压转换为数字输出。磁场已经在小型板和探测器外的空气中的铁板之间的小间隙（为目的提供）中进行了测量。在测量检测器外的小边缘场时，获得了高于3％的精度，其灵敏度降至约0.03 kgaus。
The magnetised 51 kton Iron Calorimeter (ICAL) detector proposed to be built at INO is designed with a focus on detecting 1-20 GeV muons. The magnetic field will enable the measurement of the momentum of the $μ^-$ and $μ^+$ generated from the charge current interactions of $ν_μ$ and $\barν_μ$ separately within iron in the detector, thus permitting the determination of the neutrino mass ordering/hierarchy, among other important goals of ICAL. Hence it is important to determine the magnetic field as accurately as possible. The mini-ICAL detector is an 85-ton prototype of ICAL, which is operational at Madurai in South India. We describe here the first measurement of the magnetic field in mini-ICAL using Hall sensor PCBs. A set-up developed to calibrate the Hall probe sensors using an electromagnet. The readout system has been designed using an Arduino Nano board for selection of channels of Hall probes mounted on the PCB and to convert the analog voltage to a digital output. The magnetic field has been measured in the small gaps (provided for the purpose) between iron plates in the top layer of mini-ICAL as well as in the air just outside the detector. A precision of better than 3% was obtained, with a sensitivity down to about 0.03 kGauss when measuring the small fringe fields outside the detector.
