Cristin-resultat-ID: 1662242
Sist endret: 21. januar 2019, 14:01
Resultat
Vitenskapelig foredrag
2018

Performance of pillar shaped plastic scintillators for neutron based range verification in proton therapy

Bidragsytere:
  • Kyrre Skjerdal
  • Kristian Ytre-Hauge
  • John Mattingly og
  • Ilker Meric

Presentasjon

Navn på arrangementet: 14th International Symposium on Radiation Physics
Sted: Cordoba
Dato fra: 7. november 2018
Dato til: 11. november 2018

Arrangør:

Arrangørnavn: International Radiation Physics Society

Om resultatet

Vitenskapelig foredrag
Publiseringsår: 2018

Klassifisering

Vitenskapsdisipliner

Fysikk

Emneord

Strålingsfysikk • Medisinsk fysikk

Beskrivelse Beskrivelse

Tittel

Performance of pillar shaped plastic scintillators for neutron based range verification in proton therapy

Sammendrag

Proton therapy is a promising alternative to traditional cancer therapy with photons. A proton beam deposits most of its energy in a limited area, as opposed to photon beams which deposits energy all along the tissue. Proton therapy is therefore a more precise form of treatment, as long as one can control the range of the beam with high precision to minimize the dose deposited in healthy tissue. Better information about the proton beam range during treatment is still needed. Protons traversing the tissue will produce neutrons with a rate and distribution that is correlated to the range of the beam. The aim of this project (The NOVO project: neutron detection for real-time range verification in proton therapy) is to detect these neutrons and from this reconstruct the spatial distribution of neutron production to determine the range of the therapeutic proton beam in real-time. To accomplish this, we will use a single volume neutron scatter camera made of optically segmented pillars of plastic scintillators. The neutron detection is based on the detection of two consecutive (n,p) scattering events. The advantage of the segmented design is that the scintillation light from a (n,p) scattering event is contained in a single pillar. This allows the measurement of the x- and y- position of the scattering event. The z-position is measured using the amplitude and relative timing of the two waveforms measured by pixelated photodetectors mounted on each end of the detector. In this presentation results from detector response simulations obtained using the GEANT4 Monte Carlo generator were presented. We reported on the results concerning the precision with which the scintillation position can be estimated as a function of deposited energy from (n,p) events in a single pillar shaped plastic scintillator.

Bidragsytere

Kyrre Skjerdal

  • Tilknyttet:
    Forfatter
    ved Institutt for datateknologi, elektroteknologi og realfag ved Høgskulen på Vestlandet

Kristian Smeland Ytre-Hauge

Bidragsyterens navn vises på dette resultatet som Kristian Ytre-Hauge
  • Tilknyttet:
    Forfatter
    ved Institutt for fysikk og teknologi ved Universitetet i Bergen

John Mattingly

  • Tilknyttet:
    Forfatter
    ved North Carolina State University

Ilker Meric

  • Tilknyttet:
    Forfatter
    ved Institutt for datateknologi, elektroteknologi og realfag ved Høgskulen på Vestlandet
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