Title :
Field effects on ionic and excitonic quenching for heavy ions in liquid Ar
Author :
Hitachi, Akira ; LaVerne, Jay A. ; Kolata, J.J. ; Doke, Tadayoshi
Author_Institution :
Kochi Med. Sch., Japan
fDate :
2/1/2002 12:00:00 AM
Abstract :
An increase in scintillation of up to 17% has been observed application of low electric fields (<6 kV/cm) for 1H, 4He, 18O and 36Ar ions of energy 1-35 MeV/u. This increase occurs at a field much lower than that required for the proportional region (106 V/cm). The observed phenomenon is attributed to the recovery of quenching in the high excitation density region of the particle track by the external field
Keywords :
argon; electric field effects; helium ions; hydrogen ions; ion beams; liquid scintillation detectors; oxygen; radiation detection; radiation quenching; 1 to 35 MeV; 18O; 1H; 36Ar; 4He; H; VUV emission; excited dimer; excitonic quenching; external field; field effects; heavy ions; high excitation density region; ionic quenching; ionization; liquid argon; liquid rare scintillators; low electric fields; particle track; proportional region; scintillation; visible-ultraviolet emission spectra; Argon; Biomedical engineering; Cathodes; Charge measurement; Cyclotrons; Detectors; Gases; Laboratories; Particle tracking; Physics;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
