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A cryogenic-solid cooling system
Infrared Physics, 1964Abstract A theoretical study of a simple and reliable technique for cooling small components to cryogenic temperatures has been concluded. This study indicated that cooling produced by the sublimation of solids is feasible and particularly well suited for long-term use in the space environment.
U.E. Gross, A.I. Weinstein
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Cryogen spray cooling during laser tissue welding
Physics in Medicine and Biology, 2000Cryogen cooling during laser tissue welding was explored as a means of reducing lateral thermal damage near the tissue surface and shortening operative time. Two centimetre long full-thickness incisions were made on the epilated backs of guinea pigs, in vivo. India ink was applied to the incision edges then clamps were used to appose the edges.
N M, Fried, J T, Walsh
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A mechanically cooled portable cryogenic radiometer
Metrologia, 1995This paper describes a new portable cryogenic radiometer cooled by a mechanical cooling engine instead of conventional liquid cryogens. The radiometer operates at around 15 K and has a performance comparable with that of other cryogenic radiometers.
N P Fox +3 more
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Designing Cryogenic Vapour-Cooled Current Leads
Defect and Diffusion Forum, 2008Constructing a new device we had to design some vapour-cooled current leads. This current leads are made of Low-Tc material connected with copper wires and some parts of High-Tc material. Its design is calculated keeping in mind the heat transfer by diffusion to a vapour-cooled stream that surrounds the conductive materials.
Paulo A. Augusto +3 more
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Improving tool life using cryogenic cooling
Journal of Materials Processing Technology, 2008The major needs in machining are high material removal rate, good work surface finish and low tool wear. These objectives can be achieved by reducing tool wear using proper cooling system of the tool during machining. In the present work a tool has been modified to apply liquid nitrogen as coolant through a hole made in the tool so that liquid nitrogen
Ahsan Ali Khan, Mirghani I. Ahmed
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A cryogenic circuit cools from afar
Physics Today, 2021A cloud of ultracold ions can lower the temperature of a trapped proton 9 cm away.
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Cryogenically Cooled Optical Dynamic RAM
1998Optical Dynamic RAM (ODRAM) is the first entry in an entirely new class of memory devices, offering price and performance levels that are unachievable with any other technology. ODRAM will have the capacity of magnetic hard drives but will allow up to a three order of magnitude improvement in access time.
A. E. Johnson +2 more
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300-W cryogenically cooled Yb:YAG laser
IEEE Journal of Quantum Electronics, 2005Thermooptic effects often limit the power and beam quality of bulk-solid-state lasers. Cryogenically cooled (/spl sim/100 K) Yb:YAG lasers have been previously demonstrated to have relatively low thermooptic effects and high efficiency due to improved material properties at low temperatures.
D.J. Ripin +3 more
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CRYOGENIC-SOLID COOLING TECHNIQUES
1963Abstract : The design and development of an experimental model of a cryogenic-solid cooling system was undertaken. The current investigation of cryogenic coolant solidification techniques, as well as pressure and temperature control methods, is described. Conclusions and recommendations are made, based upon the progress of the work to date. (Author)
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Highly efficient cryogenically-cooled Yb:YAG laser
Laser Physics, 2010A MOPA laser system for high pulse energy and high average power has been developed by using a cryogenic Yb:YAG. In the regenerative amplifier with our original TRAM architecture, the high pulse energies of 6.5 and 1.5 mJ were obtained at the repetition rate of 200 Hz and 1 kHz, respectively.
Kawanaka, J. +6 more
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