© Yuriy Krupko, LNCMI-Grenoble.
Published on Feb 19, 2024.
Hello. My name is Yuriy Krupko and I am a cryogenics engineer of LNCMI-Grenoble. As a member of the Scientific Instrumentation group, I work on the development and maintenance of the experimental infrastructure of the lab, providing permanent and visiting researchers with daily support. My domain of responsibility is the cryogenic equipment that allows to cool the experiment down to very low temperatures.
Originating from Ukraine, I did my Master diploma in Kharkiv National University, defending my thesis in Charles University of Prague, and then I came to France. Here, at LNCMI-Grenoble, I found the job of my dreams. I admire the experimentation at extreme conditions, such as high magnetic fields (we will go to 43 tesla this year!) and low temperatures in the millikelvin range. Also, I like very much the fact that LNCMI is a user-open facility, which attracts many visitors from all over the world.
Being a member of the service team, I’m driving my own technical investigation as well: the optimization of 3He/4He dilution refrigerator performance in high magnetic fields. In presence of a strong magnetic force, localized spatial maxima of the potential energy cause the formation of helium-gas bubbles, which seriously affect the heat transfer in the cryogenic system. My goal is to thoroughly understand these processes and then try to resolve emerging technical issues.
Even though I left Ukraine many years ago, my heart is deeply bound with my motherland in these tough days. I’m trying to support as much as I can Ukraine’s army and volunteers, whose fighting against brutal inhuman invasion of Russian terrorists. I deeply appreciate the support and compassion of my LNCMI colleagues. We all deserve better times.
