کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1507792 | 1511060 | 2012 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: 40 K single-stage coaxial pulse tube cryocoolers 40 K single-stage coaxial pulse tube cryocoolers](/preview/png/1507792.png)
Several 40 K single-stage coaxial high frequency pulse tube cryocoolers (PTCs) have been developed to provide reliable and low-noise cooling for GaAs/AlGaAs Quantum-Well infrared photodetectors (QWIPs). The inertance tubes together with the gas reservoir become the only phase shifter to guarantee the required long-term stability. The mixed regenerator consisting of three segments has been developed to enhance the overall regenerator performance. At present, the cooler prototype has achieved a no-load temperature of 29.7 K and can typically provide 860 mW cooling at 40 K with 200 W electric input power rejecting at 300 K. The performance characteristics such as the temperature stability and ambient temperature adaptability are also presented.
► Single stage coaxial pulse tube cryocoolers without the double-inlet reach a no-load temperature of 29.7 K.
► The mixed regenerator consisting of three segments has been developed to enhance the overall regenerator performance.
► The inertance tubes together with the gas reservoir as the only phase shifter guarantee the stability.
► They provide 860 mW at 40 K with 200 W of electric input power rejecting at 300 K.
► They have the potential to cool GaAs/AlGaAs QWIPs.
Journal: Cryogenics - Volume 52, Issues 4–6, April–June 2012, Pages 216–220