B. Dezillie et al., RADIATION HARDNESS OF SILICON DETECTORS MANUFACTURED ON WAFERS FROM VARIOUS SOURCES, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 388(3), 1997, pp. 314-317
Impurity concentrations in the initial silicon material are expected t
o play an important role for the radiation hardness of silicon detecto
rs, during their irradiation and for their evolution with time after i
rradiation. This work reports on the experimental results obtained wit
h detectors manufactured using various float-zone (FZ) and epitaxial-g
rown material. Preliminary results comparing the changes in leakage cu
rrent and full depiction voltage of FZ and epitaxial detectors as a fu
nction of fluence and of time after 10(14) cm(-2) proton irradiation a
re given. The measurement of charge collection efficiency for epitaxia
l detectors is also presented.