Laboratory of Information Technologies

Date and Time: Wednesday, 9 September 2020, at 3:00 PM

Venue: Conference Hall of the Laboratory of Information Technologies, Online seminar via Webex

Seminar topic: «Algorithms for Numerical Simulation of Thermal Processes in Molecular Injection Cells for Ion Source» (Following the materials of the Candidate’s thesis)

Join the conference on Webex: https://jinr.webex.com/jinr-ru/j.php?MTID=m59fbbdb0016b172b5a920e14a0deb10b

Conference ID: 137 703 1982
Code: JJcTQBF7s38

Speaker: Alexander S. Airiyan

Abstract:

Currently, it has become essential to develop precise methods for selecting and rapidly delivering molecules of particular substances into ion sources, for example, in particle accelerators for either high-energy physics research or for hadron therapy to treat oncological diseases. JINR VBLHE is developing such methods based on the practical use of the partial pressure dependence on temperature of various gaseous substances. Thus, the technology of “temperature valves” was proposed for pulse injection as an alternative to conventional mechanical flaps. To improve the efficiency of the suggested design and optimise the molecular injection cells for the supply of working substances into ion sources, numerical modelling of rapid thermal processes is required. This thesis aims at developing and implementing parallel numerical algorithms to simulate thermal processes occurring in devices for injecting gas into the ionization chamber of a multi-charge ion source, as well as the solution of the optimisation problem for properties of such devices. Large-scale calculations performed on the supercomputer Govorun to solve these optimization problems demonstrated the significant acceleration of computations. Therefore, the created software package provides an opportunity to streamline further research and efficiently optimise the devices implementing “temperature valves”.