Results 11 to 20 of about 17,264 (307)
Evaporative Cooling of Antiprotons to Cryogenic Temperatures [PDF]
Physical Review Letters, 2010 We report the application of evaporative cooling to clouds of trapped antiprotons, resulting in plasmas with measured temperature as low as 9~K. We have modeled the evaporation process for charged particles using appropriate rate equations. Good agreement between experiment and theory is observed, permitting prediction of cooling efficiency in future ...
ALPHA Collaboration +39 more
openaire +6 more sources
Cryogenic cooling with cryocooler on a rotating system [PDF]
Review of Scientific Instruments, 2013 We developed a system that continuously maintains a cryocooler for long periods on a rotating table. A cryostat that holds the cryocooler is set on the table. A compressor is located on the ground and supplies high-purity (>99.999%) and high-pressure (1.7 MPa) helium gas and electricity to the cryocooler.
Oguri, Shugo +3 more
openaire +3 more sources
Cryogenically cooled 946nm Nd:YAG laser [PDF]
Advanced Solid-State Lasers Congress, 2013 We present the first multi-Watt demonstration of a diode pumped cryogenically cooled neodymium-doped yttrium aluminum garnet (YAG) laser operating at 946 nm on the (4)F(3/2) → (4)I(9/2) transition. 3.8 W of continuous wave output power for 12.8 W of absorbed pump was obtained with a slope efficiency of 47%.
Yoon, S.J., Mackenzie, J.I.
openaire +4 more sources
Journal of Materials Research and Technology, 2022 In this work, the drilling performance of carbon fibre reinforced plastic (CFRP) composites is analysed in terms of thrust force (Fn), torque (Mz), specific cutting energy (SCE), delamination factor (Fd), and hole quality under dry and cryogenic cooling ...
Chetan Agrawal +7 more
doaj +1 more source
Tribological Behavior of PVD Hard Coated Cutting Tools under Cryogenic Cooling Conditions [PDF]
, 2017 Cryogenic assistance is used to improve machining performance and to enhance tool life under extreme contact conditions (pressure and temperature). This paper focuses on the influence of cryogenic cooling conditions using liquid nitrogen within the ...
YOUSFI, Mohamed +11 more
core +1 more source
Ti:Sa Crystals in Ultra-High Peak and Average Power Laser Systems
Crystals, 2021 In this paper, Ti:Sa amplifiers with crystals of the different geometries are discussed. Benefits of using this active medium for a thin disk (TD) and slab amplifiers are evaluated numerically and tested experimentally.
Vladimir Chvykov
doaj +1 more source
Innovative neon refrigeration unit operating down to 30 K [PDF]
MATEC Web of Conferences, 2020 A new compact, low-cost, economically competitive and environmentally friendly cryogenic system for cooling a continuous gas flow down to about 30 K is under developing at the ILK Dresden, reported in this paper.
Dalakov Petar +3 more
doaj +1 more source
Experimental Study on Rock Heat Transfer under Cryogenic Impact of Liquid Nitrogen
Taiyuan Ligong Daxue xuebao, 2022 The thermal fracture of rock under cryogenic impact is caused by the instantaneous huge thermal stress caused by rapid temperature change. The law of heat transfer inside rock determines the magnitude and action form of thermal stress.
Yu CAO +5 more
doaj +1 more source
Study on the Effect of MQL Spraying Condition on the Machinability in Titanium Cryogenic Machining [PDF]
한국정밀공학회지, 2023 Titanium alloys are used in various industries due to their superior mechanical strength and corrosion resistance. However, titanium is classified as a difficult-to-machine material due to its low thermal conductivity that consequently causes poor tool ...
Dong Min Kim +7 more
doaj +1 more source
Sensitivity Analysis of Cryogenic Cooling on Machining of Magnesium Alloy AZ31B-O [PDF]
, 2015 Improving the corrosion resistance of magnesium alloys has gained special focus in recent years, and cryogenic machining has been one of the successfully used techniques.
OUTEIRO, José +3 more
core +1 more source