A User Facility 1.5 THz Heterodyne Receiver System

一个名为TREND（太赫兹接收器与氮化铌装置）的普通用户1.5太赫兹外差接收系统将被建造并插入到目前在南极站AST/RO使用的现有双频系统中。TREND使用热电子辐射（HEB）混频器在1,300和1,600 GHz之间实现500K DSB低噪声性能。探测到n2、h2 +和CO等原子和分子物种的辐射及其空间分布，将为研究恒星、化学和星系演化提供新的视角。这将是第一个频率高于1THz的天文接收器，并将成为未来在机载和空间机载接收器中应用低噪声THz接收器的试验台

Yngvesson award abstractAST 9987319A common user 1.5 THz heterodyne receiver system named TREND (Terahertz Receiver with Niobium Nitride Device) will be built and inserted into an existing dual frequency system now in use on AST/RO at the South Pole station. TREND uses a hot electron bolometric (HEB) mixer to achieve 500K DSB low noise performance between 1,300 and 1,600 GHz.The detection and spatial distribution of emission from atomic and molecular species such as N II, H2D+ and CO will provide a new perspective on stellar, chemical and galactic evolution.This will be the first astronomical receiver for frequencies above 1THz and will be the test bed for future applications of low-noise THz receivers in both airborne and space borne recievers.***