Showing physics.ins-detShow all
3 papers · 1 filter
physics.ins-det2020
Active suppression of temperature oscillation from a pulse-tube cryocooler in a cryogen-free cryostat: Part 2. Experimental realization
Changzhao Pan, Jiangfeng Hu, Haiyang Zhang +9
A cryogen-free cryostat cooled by a closed cycle cryocooler is compact, can provide uninterrupted long-term operation (up to ten thousand hours) and is suited to temperatures from…
physics.ins-det2020
Active suppression of temperature oscillation from a pulse-tube cryocooler in a cryogen-free cryostat: Part 1. Simulation modeling from thermal response characteristics
Changzhao Pan, Bo Gao, Yaonan Song +9
A cryogen-free cryostat cooled using a 4 K commercial GM or pulse tube cryocooler (PTC) displays temperature oscillations caused by the intrinsic working principle of the regenerat…
physics.ins-det2020
Realization of ppm level pressure stability for primary thermometry using a primary piston gauge
Bo Gao, Hui Chen, Dongxu Han +8
To achieve an uncertainty of 0.25 mK in single-pressure refractive-index gas thermometry (SPRIGT), the relative pressure variation of He-4 gas in the range 30 kPa to 90 kPa, should…