Cristin-resultat-ID: 1678249
Sist endret: 19. februar 2019, 10:57
NVI-rapporteringsår: 2018
Resultat
Vitenskapelig artikkel
2019

SOI Thin Microdosimeter Detectors for Low Energy Ions and Radiation Damage Studies

Bidragsytere:
  • B. James
  • Linh T. Tran
  • J. Vohradsky
  • David Bolst
  • Vladimir M. Pan
  • M Carr
  • mfl.

Tidsskrift

IEEE Transactions on Nuclear Science
ISSN 0018-9499
e-ISSN 1558-1578
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2019
Publisert online: 2018
Trykket: 2019
Volum: 66
Hefte: 1
Sider: 320 - 326
Open Access

Importkilder

Scopus-ID: 2-s2.0-85058180628

Beskrivelse Beskrivelse

Tittel

SOI Thin Microdosimeter Detectors for Low Energy Ions and Radiation Damage Studies

Sammendrag

The responses of two silicon on insulator (SOI) 3-D microdosimeters developed by the Centre for Medical Radiation Physics were investigated with a range of different low energy ions, with high linear energy transfer (LET). The two microdosimeters n-SOI and p-SOI were able to measure the LET of different ions including 7 Li, 12 C, 16 O, and 48 Ti with ranges below 350 μm in silicon. No plasma effects were seen in the SOI microdosimeters when irradiated with the high LET ions. A Monte Carlo simulation using Geant4 was compared to the experimental measurements, whereby some discrepancies were observed for heavier ions at lower energies. This discrepancy can be partly attributed to uncertainties in the thickness of the energy degraders and overlayers of the devices. The microdosimetric measurements of low energy 16 O ions were obtained and compared to a therapeutic 16 O ion beam. The radiation hardness of the two devices was studied using the ion beam induced charge collection technique. Both types of the microdosimeters when biased had no essential changes in charge collection efficiency in the sensitive volume after irradiation with low energy ions.

Bidragsytere

B. James

  • Tilknyttet:
    Forfatter
    ved University of Wollongong

Linh T. Tran

  • Tilknyttet:
    Forfatter
    ved University of Wollongong

J. Vohradsky

  • Tilknyttet:
    Forfatter
    ved University of Wollongong

David Bolst

  • Tilknyttet:
    Forfatter
    ved University of Wollongong

Vladimir M. Pan

  • Tilknyttet:
    Forfatter
    ved University of Wollongong
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