ARCADE 2仪器
The ARCADE 2 Instrument
摘要：
第二代宇宙学、天体物理学和漫发射绝对辐射计（ARCADE 2）仪器是一个球载实验仪器，用于测量宇宙微波背景的辐射温度以及3至90千兆赫六个频率的银河系和银河系外发射。ARCADE 2采用双调零设计，其中来自天空的辐射与来自外部低温全孔径黑体校准器的辐射进行比较，该校准器由包含内部黑体参考负载的低温开关辐射计进行。为了进一步减少系统误差的来源，ARCADE 2采用了一个完全开放的冷孔，所有辐射有源元件保持在2.7 K附近，没有窗口或其他温暖的物体，通过一种新的热设计实现。我们讨论的设计和性能的ARCADE 2仪器在其2005年和2006年的飞行。
英文摘要：
The second generation Absolute Radiometer for Cosmology, Astrophysics, and Diffuse Emission (ARCADE 2) instrument is a balloon-borne experiment to measure the radiometric temperature of the cosmic microwave background and Galactic and extra-Galactic emission at six frequencies from 3 to 90 GHz. ARCADE 2 utilizes a double-nulled design where emission from the sky is compared to that from an external cryogenic full-aperture blackbody calibrator by cryogenic switching radiometers containing internal blackbody reference loads. In order to further minimize sources of systematic error, ARCADE 2 features a cold fully open aperture with all radiometrically active components maintained at near 2.7 K without windows or other warm objects, achieved through a novel thermal design. We discuss the design and performance of the ARCADE 2 instrument in its 2005 and 2006 flights.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
