论文标题

SKA粒子阵列原型:Murchison Radio-Astronomy天文台的第一个粒子检测器

The SKA Particle Array Prototype: The First Particle Detector at the Murchison Radio-astronomy Observatory

论文作者

Bray, J. D., Williamson, A., Schelfhout, J., James, C. W., Spencer, R. E., Chen, H., Cropper, B. D., Emrich, D., Gould, K. M. L., Haungs, A., Hodder, W., Howland, T., Huege, T., Kenney, D., McPhail, A., Mitchell, S., Niţu, I. C., Roberts, P., Tawn, R., Tickner, J., Tingay, S. J.

论文摘要

我们报告了在Murchison Radio-Astronomy天文台(MRO)部署的闪烁检测器的设计,部署和首先结果。检测器是较大阵列的原型 - 平方公里阵列粒子阵列(SKAPA),计划允许使用Murchison广场阵列的宇宙射线进行无线电检测,并允许平方英里阵列的低频组件。原型设计是由MRO的无线电排放量严格限制的,并确保在沙漠环境中的生存能力。使用2018年11月至2月\ 2019年2月的数据,我们在考虑到温度波动的影响的同时表征了检测器响应,并校准了原型检测器对贯穿渗透率的灵敏度。这验证了MRO在MRO处的宇宙射线检测的可行性。然后,我们估算了八个此类检测器的计划阵列的所需参数,用于触发Murchison Widefield阵列的无线电观测。

We report on the design, deployment, and first results from a scintillation detector deployed at the Murchison Radio-astronomy Observatory (MRO). The detector is a prototype for a larger array -- the Square Kilometre Array Particle Array (SKAPA) -- planned to allow the radio-detection of cosmic rays with the Murchison Widefield Array and the low-frequency component of the Square Kilometre Array. The prototype design has been driven by stringent limits on radio emissions at the MRO, and to ensure survivability in a desert environment. Using data taken from Nov.\ 2018 to Feb.\ 2019, we characterize the detector response while accounting for the effects of temperature fluctuations, and calibrate the sensitivity of the prototype detector to through-going muons. This verifies the feasibility of cosmic ray detection at the MRO. We then estimate the required parameters of a planned array of eight such detectors to be used to trigger radio observations by the Murchison Widefield Array.

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