| 摘要 |
[Problem] The present invention provides an electric wave measurement device that enables highly sensitive measurements of electric waves at extremely low temperatures. [Solution] In this electric wave measurement device, a radiation-blocking filter through which targeted electric waves can pass, an electric-wave-transmitting material that reflects non-targeted electromagnetic waves included among the electric waves, and an electric wave detector are placed in a vacuum vessel. Electric waves are passed through the radiation-blocking filter, and non-targeted electromagnetic waves included among the electric waves are reflected toward the radiation-blocking filter by the electric-wave-transmitting material, and said non-targeted electromagnetic waves are collected as heat at the radiation-blocking filter and radiated as heat to outside the system via heat conduction. The electric waves that passed through the electric-wave-transmitting material are measured with high sensitivity by the electric wave detector. |
