The almost unexplored frequency window from submillimeter to mid-infrared (mid-IR) may bring new clues about the particle acceleration and transport processes and the atmospheric thermal response during solar flares. Because of its technical complexity and the special atmospheric environment needed, observations at these frequencies are very sparse. The High Altitude THz Solar Photometer (HATS) is a full-Sun ground-based telescope designed to observe the continuum from the submillimeter to the mid-IR. It has a 457-mm spherical mirror with the sensor in its primary focus. The sensor is a Golay cell with high sensitivity in a very wide frequency range. The telescope has a polar mount, and a custom-built data acquisition system based on a 32 ksamples per second, 24 bits (72 dB dynamic range), 8 channels analog-to-digital board. Changing only the composition of the low- and band-pass filters in front of the Golay cell, the telescope can be setup to detect very different frequency bands; making the instrument very versatile. In this article we describe the telescope characteristics and its development status. Moreover, we give estimates of the expected fluxes during flares.

中文翻译：

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HATS：探索太赫兹域的地基望远镜

从亚毫米到中红外（mid-IR）的几乎未开发的频率窗口可能会带来有关太阳耀斑期间粒子加速和传输过程以及大气热响应的新线索。由于其技术复杂性和所需的特殊大气环境，这些频率的观测非常稀少。高空太赫兹太阳光度计 (HATS) 是一种全太阳地面望远镜，旨在观察从亚毫米到中红外的连续谱。它有一个 457 毫米球面镜，传感器位于其主要焦点。传感器是在很宽的频率范围内具有高灵敏度的戈莱电池。该望远镜有一个极座，以及一个基于每秒 32 ksamples、24 位（72 dB 动态范围）、8 通道模数板的定制数据采集系统。只需改变 Golay 单元前面的低通和带通滤波器的组成，就可以将望远镜设置为检测非常不同的频段；使仪器非常通用。本文介绍了望远镜的特点及其发展现状。此外，我们对耀斑期间的预期通量进行了估计。