Published July 30, 2007 | Version v1
Journal article

Pulse height reduction effects of superconducting tunnel junction particle detectors for low-energy light molecular ions

  • 1. Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Nakaku, Sakai, Osaka 599-8531 (Japan)
  • 2. National Institute of Advanced Industrial Science and Technology, Umezono, Tsukuba, Ibaraki 305-8568 (Japan)
  • 3. Institute of Applied Physics, University of Tsukuba, Tsukuba, Ibaraki 305-0006 (Japan)

Description

The performance of particle detectors using superconducting tunnel junctions has been studied for metal cluster or molecular ions accelerated at 3 keV. The output pulse height for individual ion impact decreases as the mass of projectiles increases in a mass range of less than 800 amu. In addition, pulse height reduction effects strongly depend on the molecular species. These phenomena are understood by taking into account secondary electron emission that carries part of the deposited kinetic energies of ion away from the junction surface

Additional details

Identifiers

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
91
Journal Issue
5
Journal Page Range
p. 053507-053507.3
ISSN
0003-6951
CODEN
APPLAB

Optional Information

Notes
(c) 2007 American Institute of Physics