wiki:pulse-tube_dr
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wiki:pulse-tube_dr [2022/01/28 12:58] henri.godfrin@neel.cnrs.fr |
wiki:pulse-tube_dr [2022/11/12 20:47] (current) henri.godfrin@neel.cnrs.fr |
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| === Koike' | === Koike' | ||
| A 41 mK hybrid refrigerator (Gifford - McMahon and pulse-tube) was built very early in Japan. The pulse-tube was used as 4K stage, making this machine a genuine pulse-tube based dilution unit. The performance was poor, however, due to the Gifford - McMahon high temperature stage. | A 41 mK hybrid refrigerator (Gifford - McMahon and pulse-tube) was built very early in Japan. The pulse-tube was used as 4K stage, making this machine a genuine pulse-tube based dilution unit. The performance was poor, however, due to the Gifford - McMahon high temperature stage. | ||
| - | * A dilution refrigerator using the pulse tube and GM hybrid cryocooler for neutron scattering, Y. Koike, Y. Morii, T. Igarashi, M. Kubota, Y. Hiresaki, K. Tanida, Cryogenics 39 (1999) 579-583, | + | * A dilution refrigerator using the pulse tube and GM hybrid cryocooler for neutron scattering, Y. Koike, Y. Morii, T. Igarashi, M. Kubota, Y. Hiresaki, K. Tanida, Cryogenics 39 (1999) 579-583, |
| === Uhlig' | === Uhlig' | ||
| Kurt Uhlig, in Garching, developed several machines of increasing performance. The first refrigerator reached 15 mK with a continuous heat exchanger (2002). A new model with a double mixing-chamber reached 4.3 mK (2004). A different machine with step heat exchangers allowed reaching T<10 mK (2012): | Kurt Uhlig, in Garching, developed several machines of increasing performance. The first refrigerator reached 15 mK with a continuous heat exchanger (2002). A new model with a double mixing-chamber reached 4.3 mK (2004). A different machine with step heat exchangers allowed reaching T<10 mK (2012): | ||
| - | * 3He/4He dilution refrigerator with pulse-tube refrigerator precooling, Kurt Uhlig, Cryogenics 42 (2002) 73–77, https:// | + | * 3He/4He dilution refrigerator with pulse-tube refrigerator precooling, Kurt Uhlig, Cryogenics 42 (2002) 73–77, |
| - | * “Dry” dilution refrigerator with pulse-tube precooling, Kurt Uhlig, Cryogenics 44 (2004) 53, https:// | + | * “Dry” dilution refrigerator with pulse-tube precooling, Kurt Uhlig, Cryogenics 44 (2004) 53, [[https:// |
| - | * Cryogen-free dilution refrigerators, | + | * Cryogen-free dilution refrigerators, |
| === Godfrin' | === Godfrin' | ||
| - | A commercial pulse-tube dilution refrigerator was developed in 1999 in Grenoble (France) by H. Godfrin and Ch. Gianèse (CNRS) and the company l'Air Liquide. The first commercial machine (PT-DR1) was delivered to A. Giuliani (Cuoricino experiment) in 2003. With 4 sintered silver heat exchangers, the refrigerator had a base temperature of 5 mK. Because of patents and industrial know-how agreements, details were published later: | + | {{ pt-dr1.jpg? |
| - | * Pulse-tube dilution refrigeration below 10 millikelvins, | + | A commercial pulse-tube dilution refrigerator was developed in 1999 in Grenoble (France) by H. Godfrin and Ch. Gianèse (CNRS) and the company l'Air Liquide. The first commercial machine (PT-DR1, picture on the right) was delivered to A. Giuliani (Cuoricino experiment) in 2003. With 4 sintered silver heat exchangers, the refrigerator had a base temperature of 5 mK. Because of patents and industrial know-how agreements, details were published later: |
| - | * Pulse-tube dilution refrigeration below 10 mK for Astrophysics; | + | * Pulse-tube dilution refrigeration below 10 millikelvins, |
| - | * Experimental results on the free cooling power available on 4K pulse tube coolers, T. Prouvé, H. Godfrin, C. Gianèse, S. Triqueneaux, | + | * Pulse-tube dilution refrigeration below 10 mK for Astrophysics; |
| - | * Développement d'un réfrigérateur à dilution prérefroidi par un tube à gaz pulsé, Thomas Prouvé, PhD Thesis, Grenoble (2007) https:// | + | * Experimental results on the free cooling power available on 4K pulse tube coolers, T. Prouvé, H. Godfrin, C. Gianèse, S. Triqueneaux, |
| + | * Développement d'un réfrigérateur à dilution prérefroidi par un tube à gaz pulsé, Thomas Prouvé, PhD Thesis, Grenoble (2007) | ||
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| + | The cryostats PT-DR1 (industrial version version delivered in 2003), PT-DR2 (2007, version presented at the Industrial Exhibition of LT25, Amsterdam, 2008), and PT-DR4 (Pulse-tube dilution for neutron scattering, 2021 version shown): | ||
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| + | {{PT-DR2-Godfrin-Air_Liquide.jpg? | ||
| + | {{PT-DR4-Godfrin.png? | ||
| - | {{pt-dr1-godfrin.png? | ||
| - | {{PT-DR2-Godfrin-Air_Liquide.jpg? | ||
wiki/pulse-tube_dr.1643374719.txt.gz · Last modified: 2022/01/28 12:58 by henri.godfrin@neel.cnrs.fr
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