Published April 20, 1992
| Version v1
Journal article
Particle detection by evaporation from superfluid helium
Creators
- 1. Department of Physics, Brown University, Providence, Rhode Island 02912 (United States)
Description
We report the first experiments in which 5-MeV alpha particles are detected via evaporation from a bath of superfluid helium. The α excites phonons and rotons in the liquid helium, and these excitations are sufficiently energetic to evaporate helium atoms when they reach the free surface of the liquid. The approximate overall efficiency of this process has been determined, and we compare this with expectations. We have also been able to detect evaporation induced by a flux of γ's from a 137Cs source
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 68
- Journal Issue
- 16
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 2429-2432
- ISSN
- 0031-9007
- CODEN
- PRLTA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 23083745
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ALPHA DETECTION; COMPTON EFFECT; EVAPORATION; EXPERIMENTAL DATA; GAMMA DETECTION; HELIUM 4; NEUTRINOS; PARTICLE IDENTIFICATION; ROTONS; SUPERFLUIDITY; TEMPERATURE RANGE 0000-0013 K
- Descriptors DEC
- BASIC INTERACTIONS; CHARGED PARTICLE DETECTION; DATA; DETECTION; ELASTIC SCATTERING; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; EVEN-EVEN NUCLEI; FERMIONS; HELIUM ISOTOPES; INFORMATION; INTERACTIONS; ISOTOPES; LEPTONS; LIGHT NUCLEI; MASSLESS PARTICLES; NUCLEI; NUMERICAL DATA; PHASE TRANSFORMATIONS; QUASI PARTICLES; RADIATION DETECTION; SCATTERING; STABLE ISOTOPES; TEMPERATURE RANGE