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Statements

Subject Item
n2:RIV%2F68407700%3A21670%2F14%3A00225591%21RIV15-MSM-21670___
rdf:type
skos:Concept n19:Vysledek
rdfs:seeAlso
http://iopscience.iop.org/1748-0221/9/04/C04011
dcterms:description
Neutron detection is a valuable tool in nuclear science research, homeland security, quality assurance in nuclear plants and medical applications. Recent developments and near future instrumentations in neutron imaging have a need for sensors with high spatial resolution, dynamic range, sensitivity and background discrimination. Silicon based neutron detectors can potentially fulfil these requirements. In this work, pad and pixel detectors with pyramidal micro-structures have been successfully fabricated that should have an improved detection efficiency when compared to conventional planar devices. Titanium di-boride (TiB<sub>2</sub>) and lithium fluoride (LiF) were deposited as the neutron converters. Excellent electrical performances were measured on both simple pad and pixel detectors. A selection of pad detectors was examined by alpha spectroscopy. Measurement with thermal neutrons from a <sup>241</sup>Am-Be source shows an improvement in relative efficiency of up to 38% when compared to conventional planar devices. Neutron detection is a valuable tool in nuclear science research, homeland security, quality assurance in nuclear plants and medical applications. Recent developments and near future instrumentations in neutron imaging have a need for sensors with high spatial resolution, dynamic range, sensitivity and background discrimination. Silicon based neutron detectors can potentially fulfil these requirements. In this work, pad and pixel detectors with pyramidal micro-structures have been successfully fabricated that should have an improved detection efficiency when compared to conventional planar devices. Titanium di-boride (TiB<sub>2</sub>) and lithium fluoride (LiF) were deposited as the neutron converters. Excellent electrical performances were measured on both simple pad and pixel detectors. A selection of pad detectors was examined by alpha spectroscopy. Measurement with thermal neutrons from a <sup>241</sup>Am-Be source shows an improvement in relative efficiency of up to 38% when compared to conventional planar devices.
dcterms:title
Silicon sensors with pyramidal structures for neutron imaging Silicon sensors with pyramidal structures for neutron imaging
skos:prefLabel
Silicon sensors with pyramidal structures for neutron imaging Silicon sensors with pyramidal structures for neutron imaging
skos:notation
RIV/68407700:21670/14:00225591!RIV15-MSM-21670___
n4:aktivita
n9:I n9:P
n4:aktivity
I, P(LG13031)
n4:cisloPeriodika
4
n4:dodaniDat
n5:2015
n4:domaciTvurceVysledku
n14:3746399 Petersson, Carl Sture n14:7844670 n14:9985522
n4:druhVysledku
n12:J
n4:duvernostUdaju
n20:S
n4:entitaPredkladatele
n7:predkladatel
n4:idSjednocenehoVysledku
44847
n4:idVysledku
RIV/68407700:21670/14:00225591
n4:jazykVysledku
n15:eng
n4:klicovaSlova
neutron radiography; X-ray detectors; silicon microstrip and pad detectors; solid state detectors; detection efficiency; neutron converter
n4:klicoveSlovo
n10:silicon%20microstrip%20and%20pad%20detectors n10:X-ray%20detectors n10:detection%20efficiency n10:neutron%20converter n10:solid%20state%20detectors n10:neutron%20radiography
n4:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n4:kontrolniKodProRIV
[8BC98BEF2E03]
n4:nazevZdroje
Journal of Instrumentation
n4:obor
n17:JB
n4:pocetDomacichTvurcuVysledku
4
n4:pocetTvurcuVysledku
10
n4:projekt
n13:LG13031
n4:rokUplatneniVysledku
n5:2014
n4:svazekPeriodika
9
n4:tvurceVysledku
Slavíček, Tomáš Pospíšil, Stanislav Petersson, Carl Sture Kok, A. Vykydal, Zdeněk Rokne, J. Kohout, Zdeněk Thungström, G. Hansen, T.-E. Soligard, S.
n4:wos
000336123800011
s:issn
1748-0221
s:numberOfPages
10
n16:doi
10.1088/1748-0221/9/04/C04011
n18:organizacniJednotka
21670