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Proton irradiation induced radiation effects in dose gels / Neringa Seperiene, Diana Adliene, Evelina Jaselske.

Šeperienė, Neringa ; Kauno technologijos universitetas. Adlienė, Diana ; Kauno technologijos universitetas ; Jaselskė, Evelina ; Kauno technologijos universitetas.

REI – 19 : the 19th international conference on radiation effects in insulators, 2nd – 7th July 2017, Versailles, France : book of abstracts. [S. l.] : [s.n.], 2017. p. 55-56.

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  • Antraštė:
    Proton irradiation induced radiation effects in dose gels / Neringa Seperiene, Diana Adliene, Evelina Jaselske.
  • Publikacijos rūšis: Tezės kituose recenzuojamuose leidiniuose (T1e).
  • Mokslo kryptis: Fizika (02P).
  • Autorius(-iai): Šeperienė, Neringa ; Kauno technologijos universitetas.
  • Adlienė, Diana ; Kauno technologijos universitetas ; Jaselskė, Evelina ; Kauno technologijos universitetas.
  • Leidinyje: REI – 19 : the 19th international conference on radiation effects in insulators, 2nd – 7th July 2017, Versailles, France : book of abstracts. [S. l.] : [s.n.], 2017. p. 55-56.
  • Kalba: Anglų
  • Temos / reikšminiai žodžiai [angl.]: proton irradiation ; radiation effects ; dose gels.
  • Santrauka [angl.]: Radiation processing of dose gels using high energy particle beams plays an important role in development of the new dosimetry methods for industrial and medical applications [1,2]. Typical gel dosimeter (dose gel) consists of water, gelatin, monomers and a cross-linker co-monomer. The solution may contain also an antioxidant playing the role of oxygen scavenger and some dose sensitizers enabling radiation induced polymerization of dose gels under normal atmospheric conditions. The aim of this work was to investigate the radiation induced eects in polymerized dose gel structures after the low dose proton irradiation. Three dierent batches of experimental, modied gels: nPAG (acrylamide based), nMAG (methacrylic acid based) and VIPET (N-Vinylpyrrolidone based) were prepared following routine procedure of hydrogel fabrication [3,4]. Experimental gel samples were irradiated in proton accelerator IBA PROTEOS C230 to doses from the interval of 0.5Gy to 5.0 Gy at OncoRay Clinic in Dresden. Characteristics, related to the proton irradiation induced polymerization processes in gels (monomer and crosslinker consumption rates, polymerization rate) and also processed gel structure and its physical/chemical properties were investigated applying Raman spectroscopy and UV-VIS spectrometry. Taking into account that polymerization processes in dose gels depend on the initial gel content and irradiation conditions, the characteristics of post irradiated dose gel structures strongly relay on irradiation dose and dose rate. Investigated nPAG, nMAG and VIPET gels recorded dierent radiation sensitivity to proton irradiation, however it was possible to calibrate at least their optical characteristics according to the applied irradiation doses. Performed investigation revealed that acrylamide and methacrylic acid based gels were more sensitive to low doses, than VIPET, showing a potential of nPAG, nMAG dose gels in low dose clinical proton dosimetry.
  • Naudotos literatūros skaičius: 4.
  • Išteklius: eLABa PDB talpykla
  • eLABa ID: 23319919.

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