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Early stage of reverse annealing and projections for LHC experiments

Reverse annealing of radiation damage in silicon bulk has been studied with emphasis on its implications on LHC experiments. Predictions were shown to depend critically on the model used for reverse annealing dynamics. A set of 8 p/sup +/-n-n/sup +/ pad detectors was irradiated with neutrons to flue...

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Detalles Bibliográficos
Autores principales: Mikuz, M, Cindro, V, Kramberger, G, Zontar, D
Lenguaje:eng
Publicado: 1999
Materias:
Acceso en línea:https://dx.doi.org/10.1007/BF03185605
http://cds.cern.ch/record/430799
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author Mikuz, M
Cindro, V
Kramberger, G
Zontar, D
author_facet Mikuz, M
Cindro, V
Kramberger, G
Zontar, D
author_sort Mikuz, M
collection CERN
description Reverse annealing of radiation damage in silicon bulk has been studied with emphasis on its implications on LHC experiments. Predictions were shown to depend critically on the model used for reverse annealing dynamics. A set of 8 p/sup +/-n-n/sup +/ pad detectors was irradiated with neutrons to fluences from 2*10/sup 13/ to 2*10/sup 14/ n/cm/sup -2/. Time-development of defects at 20 degrees C for 100 days covered the expected annealing at LHC. A linear parameterization of this initial stage of reverse annealing with a slope parameter was used. The fluence dependence of the slope clearly proved that reverse annealing is indeed a first-order process. A large spread was observed in the slope even with identically treated detectors from the same production batch, the mean value corresponding to a reverse annealing time constant of 476 days. Two pad detectors were irradiated to 4*10/sup 13/ n/cm/sup -2/ and reverse annealing measured for a month at 60 degrees C. A fit with two exponentials was shown to adequately describe reverse annealing up to completion. (15 refs).
id cern-430799
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1999
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spelling cern-4307992019-09-30T06:29:59Zdoi:10.1007/BF03185605http://cds.cern.ch/record/430799engMikuz, MCindro, VKramberger, GZontar, DEarly stage of reverse annealing and projections for LHC experimentsDetectors and Experimental TechniquesReverse annealing of radiation damage in silicon bulk has been studied with emphasis on its implications on LHC experiments. Predictions were shown to depend critically on the model used for reverse annealing dynamics. A set of 8 p/sup +/-n-n/sup +/ pad detectors was irradiated with neutrons to fluences from 2*10/sup 13/ to 2*10/sup 14/ n/cm/sup -2/. Time-development of defects at 20 degrees C for 100 days covered the expected annealing at LHC. A linear parameterization of this initial stage of reverse annealing with a slope parameter was used. The fluence dependence of the slope clearly proved that reverse annealing is indeed a first-order process. A large spread was observed in the slope even with identically treated detectors from the same production batch, the mean value corresponding to a reverse annealing time constant of 476 days. Two pad detectors were irradiated to 4*10/sup 13/ n/cm/sup -2/ and reverse annealing measured for a month at 60 degrees C. A fit with two exponentials was shown to adequately describe reverse annealing up to completion. (15 refs).oai:cds.cern.ch:4307991999
spellingShingle Detectors and Experimental Techniques
Mikuz, M
Cindro, V
Kramberger, G
Zontar, D
Early stage of reverse annealing and projections for LHC experiments
title Early stage of reverse annealing and projections for LHC experiments
title_full Early stage of reverse annealing and projections for LHC experiments
title_fullStr Early stage of reverse annealing and projections for LHC experiments
title_full_unstemmed Early stage of reverse annealing and projections for LHC experiments
title_short Early stage of reverse annealing and projections for LHC experiments
title_sort early stage of reverse annealing and projections for lhc experiments
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1007/BF03185605
http://cds.cern.ch/record/430799
work_keys_str_mv AT mikuzm earlystageofreverseannealingandprojectionsforlhcexperiments
AT cindrov earlystageofreverseannealingandprojectionsforlhcexperiments
AT krambergerg earlystageofreverseannealingandprojectionsforlhcexperiments
AT zontard earlystageofreverseannealingandprojectionsforlhcexperiments