نتایج جستجو برای: cryostat
تعداد نتایج: 1392 فیلتر نتایج به سال:
Cryostat section of synovial tissue from patients with rheumatoid arthritis, ankylosing spondylitis, osteoarthrosis, pigmented villonodular synovitis, and from a normal knee were studied by indirect immunofluorescence with guinea-pig antibodies to the intermediate filament proteins prekeratin, vimentin, and desmin. Staining for vimentin, but absence of prekeratin and desmin, was demonstrated in...
We have experimentally studied growing a large (about 1 liter) ortho-deuterium crystal in real UCN source cryostat and recorded the process optically using camera. The best quality was observed when directly from vapor phase. grown at different mass flows of deuterium annealed temperatures. Optimum conditions were found for both, obtaining an transparent cooling it down with minimal damage. tha...
A cold finger attached to the second refrigeration stage of a DE-201 Displex closed-cycle helium refrigerator has been equipped with a miniature DC motor. The device allows reorientat ion of the crystal at low temperature, without remount ing or warming to ambient temperature. The axis around which the crystal is rotated is inclined by 45 ° to the cryostat axis, which gives a 90 ° change in ori...
A large heat load caused by thermal radiation through a metal shield pipe was observed in a cooling test of a cryostat for a prototype of a cryogenic interferometric gravitational wave detector. The heat load was approximately 1000 times larger than the value calculated by the Stefan-Boltzmann law. We studied this phenomenon by simulation and experiment and found that it was caused by the condu...
An ultrafast atomic motion of a photo-induced coherent phonon bismuth at low temperatures was directly observed with time-resolved x-ray diffraction. A cryostat window that is transparent to both optical lasers and x-rays enabled versatile diffraction measurements in wide temperature range including below 10 K. It found an displacement fully symmetric A$_{\mathrm{1g}}$ mode suppressed temperatu...
We present a novel setup to measure the transverse magneto-optical Kerr effect in extreme ultraviolet spectral range based on fiber laser amplifier system with repetition rate between 100 and 300 kHz, which we use element-resolved demagnetization dynamics. The is equipped strong electromagnet cryostat, allowing measurements 10 420 K using magnetic fields up 0.86 T. performance of our demonstrat...
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