skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Scintillation and quantum evaporation generated by single monoenergetic electrons stopped in superfluid helium

Abstract

For several years the authors have been studying the energy deposition in liquid helium at low temperatures by energetic charged particles. This work is motivated by interest in developing a detector for neutrinos emanating from the p-p reaction in the sun. An electron stopped in superfluid helium generates phonons and rotons in the liquid as well as uv photons via scintillation. They report recent measurements with single 364 keV electrons. A sapphire wafer with a superconducting transition-edge sensor is mounted above the liquid and can measure energy and timing information of individual events. The authors observe both uv photons and the quantum evaporation of helium atoms resulting from phonons and rotons generated by the ionizing particle in the liquid. The production of photons and rotons is strikingly different for an electron and for an alpha particle. The origin of the differences is associated with the different density of excitations along the tracks of an alpha particle and an electron.

Authors:
; ; ; ;  [1]
  1. Brown Univ., Providence, RI (United States). Dept. of Physics
Publication Date:
Sponsoring Org.:
USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
OSTI Identifier:
302315
DOE Contract Number:  
FG02-88ER40452
Resource Type:
Journal Article
Journal Name:
Journal of Low Temperature Physics
Additional Journal Information:
Journal Volume: 113; Journal Issue: 5-6; Other Information: DN: Paper presented at the international symposium on quantum fluids and solids, June 9--14, 1998, Amherst, MA (US); PBD: Dec 1998
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; NEUTRINO DETECTION; DESIGN; CHARGED-PARTICLE TRANSPORT; RADIATION DETECTORS; ELECTRONS; HELIUM 3; STOPPING POWER; ENERGY ABSORPTION; EXPERIMENTAL DATA; SCINTILLATIONS

Citation Formats

Adams, J S, Kim, Y H, Lanou, R E, Maris, H J, and Seidel, G M. Scintillation and quantum evaporation generated by single monoenergetic electrons stopped in superfluid helium. United States: N. p., 1998. Web. doi:10.1023/A:1022589325136.
Adams, J S, Kim, Y H, Lanou, R E, Maris, H J, & Seidel, G M. Scintillation and quantum evaporation generated by single monoenergetic electrons stopped in superfluid helium. United States. doi:10.1023/A:1022589325136.
Adams, J S, Kim, Y H, Lanou, R E, Maris, H J, and Seidel, G M. Tue . "Scintillation and quantum evaporation generated by single monoenergetic electrons stopped in superfluid helium". United States. doi:10.1023/A:1022589325136.
@article{osti_302315,
title = {Scintillation and quantum evaporation generated by single monoenergetic electrons stopped in superfluid helium},
author = {Adams, J S and Kim, Y H and Lanou, R E and Maris, H J and Seidel, G M},
abstractNote = {For several years the authors have been studying the energy deposition in liquid helium at low temperatures by energetic charged particles. This work is motivated by interest in developing a detector for neutrinos emanating from the p-p reaction in the sun. An electron stopped in superfluid helium generates phonons and rotons in the liquid as well as uv photons via scintillation. They report recent measurements with single 364 keV electrons. A sapphire wafer with a superconducting transition-edge sensor is mounted above the liquid and can measure energy and timing information of individual events. The authors observe both uv photons and the quantum evaporation of helium atoms resulting from phonons and rotons generated by the ionizing particle in the liquid. The production of photons and rotons is strikingly different for an electron and for an alpha particle. The origin of the differences is associated with the different density of excitations along the tracks of an alpha particle and an electron.},
doi = {10.1023/A:1022589325136},
journal = {Journal of Low Temperature Physics},
number = 5-6,
volume = 113,
place = {United States},
year = {1998},
month = {12}
}