[3] COOPER K B,DENGLER R J,LLOMBART N,et al. THz imaging radar for standoff personnel screening[J]. IEEE Transactions on Terahertz Science and Technology, 2011,1(1):169-182. doi:10.1109/TTHZ.2011.2159556.
[4] BOOSKE J H,DOBBS R J,JOYE C D,et al. Vacuum electronic high power terahertz sources[J]. IEEE Transactions on Terahertz Science and Technology, 2011,1(1):54-75. doi:10.1109/TTHZ.2011.2151610.
[6] ZHANG Min, ZHANG Ke, GAO Yujuan. Preparation of miniature thermionic cathode to be used in THz devices[C]// 2023 the 24th International Vacuum Electronics Conference(IVEC). Chengdu,China:IEEE, 2023:1-2. doi:10.1109/IVEC56627.2023.10156905.
