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Statements

Subject Item
n2:RIV%2F60077344%3A_____%2F11%3A00379076%21RIV13-AV0-60077344
rdf:type
skos:Concept n4:Vysledek
rdfs:seeAlso
http://iopscience.iop.org/1748-0221/6/11/C11005/pdf/1748-0221_6_11_C11005.pdf
dcterms:description
Microradiography is an imaging technique using X-rays in the study of internal structures of objects. This rapid and convenient imaging tool is based on differential X-ray attenuation by various tissues and structures within the biological sample. The non-absorbed radiation is detected with a suitable detector and creates a radiographic image. In order to detect the differential properties of X-rays passing through structures sample with different compositions, an adequate high-quality imaging detector is needed. We describe the recently developed radiographic apparatus, equipped with Timepix semiconductor pixel detector. The detector is used as an imager that counts individual photons of ionizing radiation, emitted by an X-ray tube FeinFocus with tungsten, copper or molybdenum anode. Thanks to the wide dynamic range, time over threshold mode-counter is used as Wilkinson type ADC allowing direct energy measurement in each pixel of Timepix detector and its high spatial resolution better than 1 m m, the setup is particularly suitable for radiographic imaging of small biological samples. We are able to visualize some internal biological processes and also to resolve the details of insects (morphology) using different anodes. These anodes generate different energy spectra. These spectra depend on the anode material. The resulting radiographic images varies according to the selected anode. Tiny live insects are an ideal object for our studies. Microradiography is an imaging technique using X-rays in the study of internal structures of objects. This rapid and convenient imaging tool is based on differential X-ray attenuation by various tissues and structures within the biological sample. The non-absorbed radiation is detected with a suitable detector and creates a radiographic image. In order to detect the differential properties of X-rays passing through structures sample with different compositions, an adequate high-quality imaging detector is needed. We describe the recently developed radiographic apparatus, equipped with Timepix semiconductor pixel detector. The detector is used as an imager that counts individual photons of ionizing radiation, emitted by an X-ray tube FeinFocus with tungsten, copper or molybdenum anode. Thanks to the wide dynamic range, time over threshold mode-counter is used as Wilkinson type ADC allowing direct energy measurement in each pixel of Timepix detector and its high spatial resolution better than 1 m m, the setup is particularly suitable for radiographic imaging of small biological samples. We are able to visualize some internal biological processes and also to resolve the details of insects (morphology) using different anodes. These anodes generate different energy spectra. These spectra depend on the anode material. The resulting radiographic images varies according to the selected anode. Tiny live insects are an ideal object for our studies.
dcterms:title
Microradiagraphy of biological samples with Timepix Microradiagraphy of biological samples with Timepix
skos:prefLabel
Microradiagraphy of biological samples with Timepix Microradiagraphy of biological samples with Timepix
skos:notation
RIV/60077344:_____/11:00379076!RIV13-AV0-60077344
n4:predkladatel
n20:ico%3A60077344
n6:aktivita
n13:V n13:Z n13:P
n6:aktivity
P(2B06005), V, Z(AV0Z50070508), Z(MSM6840770040)
n6:cisloPeriodika
C11005
n6:dodaniDat
n12:2013
n6:domaciTvurceVysledku
n16:3892220
n6:druhVysledku
n21:J
n6:duvernostUdaju
n7:S
n6:entitaPredkladatele
n17:predkladatel
n6:idSjednocenehoVysledku
212336
n6:idVysledku
RIV/60077344:_____/11:00379076
n6:jazykVysledku
n19:eng
n6:klicovaSlova
X-ray detectors; X-ray radiography and digital radiography (DR); pixelated detectors and associated VLSI electronics
n6:klicoveSlovo
n18:pixelated%20detectors%20and%20associated%20VLSI%20electronics n18:X-ray%20radiography%20and%20digital%20radiography%20%28DR%29 n18:X-ray%20detectors
n6:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n6:kontrolniKodProRIV
[2E1688A9BA5F]
n6:nazevZdroje
Journal of Instrumentation
n6:obor
n15:EA
n6:pocetDomacichTvurcuVysledku
1
n6:pocetTvurcuVysledku
6
n6:projekt
n8:2B06005
n6:rokUplatneniVysledku
n12:2011
n6:svazekPeriodika
6
n6:tvurceVysledku
Dammer, J. Jakůbek, J. Weyda, František Beneš, J. Sopko, V. Vondráček, V.
n6:wos
000298320400005
n6:zamer
n14:MSM6840770040 n14:AV0Z50070508
s:issn
1748-0221
s:numberOfPages
6
n11:doi
10.1088/1748-0221/6/11/C11005