We report on our investigation into adapting the design of the James Webb Space Telescope (JWST) to the needs and requirements of the Origins Space Telescope. The modifications needed to the equipment and insulation of the JWST design to achieve the 4.5-K design temperature for Origins are introduced and detailed. The Webb thermal model is modified to the Origins design and used to predict the heat loads at 18 and 4.5 K. We also describe the needed development of the JWST Mid-Infrared Instrument’s cryocooler needed to reach the temperature necessary for Origins. The capabilities of the various modified cryocoolers are discussed. We show that three modified coolers are needed to achieve the performance required for Origins. Finally, we show that the baseline instruments and needed coolers can be accommodated for volume, mass, and power in the Webb architecture.

中文翻译：

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Origins太空望远镜的替代架构

我们报告了有关根据詹姆斯·韦伯太空望远镜（JWST）的设计来适应起源太空望远镜的需求和要求的调查。介绍并详细介绍了为实现Origins的4.5-K设计温度而对JWST设计的设备和绝缘进行的修改。韦伯热模型已针对Origins设计进行了修改，并用于预测18和4.5 K时的热负荷。我们还描述了JWST中红外仪器低温冷却器的必要开发，以达到Origins所需的温度。讨论了各种改进的低温冷却器的功能。我们表明，需要三个改进的冷却器来实现Origins所需的性能。最后，我们证明可以适应基线仪器和所需的冷却器的体积，质量，