Speaker
Mr
Tomas Slavicek
(IEAP CTU in Prague)
Description
Neutron radiation as a non-ionizing radiation is particularly difficult to detect; therefore conversion material are needed. Conversion materials convert neutrons into secondary charged particles to be detected in silicon sensors. The use of titanium diboride (TiB2) as a conversion material deposited by electron beam-physical vapour deposition (EB-PVD) as a part of front side contact of planar silicon sensor will be presented. Effects of different front side contact material composition and conversion material thickness will be demonstrated and discussed. Sensor behaviour will be examined using alpha particle spectroscopy and a 241Am-Be neutron source. Simultaneously, a Geant4 simulation will be executed to evaluate conversion layer functionality and to discover the conversion material thickness for the best neutron detection efficiency.
Primary author
Mr
Tomas Slavicek
(IEAP CTU in Prague)
Co-authors
Mr
David Krapohl
(Department of Information Technology and Media, Mid Sweden University)
Mr
Göran Thungström
(Department of Information Technology and Media, Mid Sweden University)
Dr
Stanislav Pospisil
(IEAP CTU in Prague)
Prof.
Sture Petersson
(IEAP CTU Prague/KTH/Mid Sweden University)
