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| 1 | First stirling-type cryocooler reaching lambda point of ~4He(2.17K) and its prospect in Chinese HUBS satellite project显示文摘The issue of 'missing baryons” is always an unsolved mystery in galaxy cosmology, and an important reason for the great uncertainty of the galaxies' formation and evolution. To find the 'missing' baryons, extra high-resolution spectral observation and imaging of the soft X-ray band (<1 kev) is required. However, the existing observation methods cannot meet this requirement. Therefore, Tsinghua University leads and proposes the Chinese 'Hot Universe Baryon Surveyor (HUBS)' satellite program. | Jue Wang Changzhao Pan Tong Zhang Kaiqi Luo Xiaotong Xi Xianlin Wu Jianpeng Zheng Liubiao Chen Junjie Wang Yuan Zhou Hai Jin Wei Cui | 2019 | Science Bulletin2019，64，4： | 3 |
| 2 | Chinese SPRIGT realizes high temperature stability in the range of 5–25 K显示文摘The unit of thermodynamic temperature,the kelvin,is one of the seven base units of International System of Units.High accuracy measurements of thermodynamic temperature in the lowtemperature range,namely below the neon triple point at24.5561 K,are of strategic significance for the development of | Bo Gao Changzhao Pan Laurent Pitre Yanyan Chen Haiyang Zhang Yaonan Song Hui then Wenjing Liu Dongxu Han Ercang Luo | 2018 | Science Bulletin2018，63，12： | 3 |
| 3 | Theoreti- cal Analysis of Recireulation Zone and Buffer Zone in the ADS Windowless Spallation Target 显示文摘 | Liu Jie Pan Changzhao Tong Jianfei | 2015 | Annals of Nuclear Energy2015，77，44： | 1 |
| 4 | Investigation of High-Stability Temperature Control in Primary Gas Thermometry显示文摘We presented a relationship between the temperature control and measurement stability limit and the temperature resolution,particularly for using rhodium-iron resistance thermometers and AC resistance bridges.Based on this,temperature control was investigated and demonstrated in primary gas thermometry under various working conditions.With optimized parameters,micro-Kelvin level temperature control stability was realized in the temperature region from 5 K to 24.5 K.The temperature control stabilities are better than 8μK over 180 h with an integration time of 33.6 s in the concerned temperature range,closing to the limit that the sensors and the instruments can control and measure.These stabilities were significantly improved about(44±8)%at 24.5 K and(70±7)%at 5 K comparing with our previous work(Chen et al.,Cryogenics,2019,97:1–6). | HU Jiangfeng ZHANG Haiyang SONG Yaonan PAN Changzhao GAO Bo LIU Wenjing HAN Dongxu ZHANG Zhen LUO Ercang PITRE Laurent | 2022 | Journal of Thermal Science2022，31，3： | 1 |
| 5 | A high-stability quasi-spherical resonator in SPRIGT for microwave frequency measurements at low temperatures显示文摘To meet the de ma nds of high stability and sustainable temperature measurements over time,TIPC-CAS in China and LNE-Cnam in France have jointly developed single-pressure refractive-index gas thermometiy(SPR1GT),which is expected to be an alternative primary thermometiy because of its 0.25 mK accuracy and high measurement speeds. | Haiyang Zhang Wenjing Liu Bo Gao Yanyan Chen Changzhao Pan Yaonan Song Hui Chen Dongxu Han Jiangfeng Hu Ercang Luo Laurent Pitre | 2019 | Science Bulletin2019，64，5： | 0 |
| 6 | Ultra-stable pressure is realized for Chinese single pressure refractive index gas thermometry in the range 30–90 kPa显示文摘The unit of thermodynamic temperature,the kelvin,is one of the seven base units of International System of Units.The international temperature scaIe of 1990 (ITS-90)is a practical temperature scale used worldwide to approximate thermodynamic tempera- ture T by ITS-90 temperature T90.The primary thermometry calibration facilities based on thermodynamic temperature standards are the foundation of ITS 90 and temperature measurement in a country.China has developed primary thermometry in the temperature region down to the neon triple point 24.5561 K estimated by ITS-90,but it has not yet set up any primary thermometry at lower temperatures. | Dongxu Han Bo Gao Hui Chen Pascal Gambette Haiyang Zhang Changzhao Pan Yaonan Song Wenjing Liu Jiangfeng Hu Bo Yu Yingwen Liu Ercang Luo Laurent Pitre | 2018 | Science Bulletin2018，63，24： | 0 |
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