Author Archives: admin

Properties of Few-Electron Bubbles in Superfluid Helium-4

We present calculations of the properties of bubbles in liquid helium-4 containing 3 or 8 electrons. The pressure range in which these bubbles are stable is determined. For Z =3, we find that the bubbles are unstable except in a pressure … Continue reading

Posted in Uncategorized | Comments Off on Properties of Few-Electron Bubbles in Superfluid Helium-4

Power Supply System for the Helium Ions Linac’s Injector

This paper presents compact power supply system for the helium ion linac’s injector. The system consists of high-voltage modulator, power supplies of cathode filament, solenoid and arc modulator. It is designed on modern semi-conductor base. Using of the designed power … Continue reading

Posted in Uncategorized | Comments Off on Power Supply System for the Helium Ions Linac’s Injector

Helium Beam Particle Therapy Facility

Due to its precision and limited side effects, the particle therapy of cancer is gaining popularity. The number of patients treated with protons and light ions reached 150,000 worldwide. There are currently more than 80 facilities, which often this treatment … Continue reading

Posted in Helium application, New technology, Research | Comments Off on Helium Beam Particle Therapy Facility

Cavity Evolution and the Rayleigh-Plesset Equation in Superfluid Helium

Based on the two-fluid hydrodynamics, an analog of the famous Rayleigh-Plesset equation for the dynamics of a spherical vapor bubble in superfluid helium is derived. The two-fluid nature of He II and the specific form of the momentum flux density … Continue reading

Posted in Research | Comments Off on Cavity Evolution and the Rayleigh-Plesset Equation in Superfluid Helium

Why Helium Is Headed A Lot Higher

Shortages of key resources never last, but investors can profit with careful timing, writes Dominic Frisby Every now and then, a niche commodity comes along: some rare yet essential substance that the world simply can’t get enough of. Small-cap natural … Continue reading

Posted in Uncategorized | Comments Off on Why Helium Is Headed A Lot Higher