Pregled bibliografske jedinice broj: 18727
Utjecaj LET-a na odziv Al2O3:C i CaF2:Mn TL dozimetara
Utjecaj LET-a na odziv Al2O3:C i CaF2:Mn TL dozimetara // Zbornik radova Četvrtog simpozija Hrvatskog društva za zaštitu od zračenja = Proceedings of the 4th Symposium of the Croatian Radiation Protection Association / Obelić, Bogomil ; Franić, Zdenko (ur.).
Zagreb: Hrvatsko društvo za zaštitu od zračenja, 1998. str. 231-236 (predavanje, nije recenziran, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 18727 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Utjecaj LET-a na odziv Al2O3:C i CaF2:Mn TL dozimetara
(LET dependence of high sensitivity TL dosimeters)
Autori
Ranogajec-Komor, Maria ; Osvay, Margit
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Zbornik radova Četvrtog simpozija Hrvatskog društva za zaštitu od zračenja = Proceedings of the 4th Symposium of the Croatian Radiation Protection Association
/ Obelić, Bogomil ; Franić, Zdenko - Zagreb : Hrvatsko društvo za zaštitu od zračenja, 1998, 231-236
ISBN
953-96133-2-9
Skup
4. simpozij Hrvatskog društva za zaštitu od zračenja
Mjesto i datum
Zagreb, Hrvatska, 11.11.1998. - 13.11.1998
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Nije recenziran
Sažetak
LET dependence of highly sensitive Al2O3:C (made in Russia) and CaF2:Mn (made in Slovenia) TL dosimeters was investigated using low (gamma) and high LET (alpha, neutron) exposures. Glow curve analysis was used to determine the efficiencies of TL light production for alpha particle and neutron irradiation relative to gamma exposure. The experiments were performed with 60Co, 241Am and 233Pu-Be source using a 20 cm diameter polyethylene moderator. The irradiation dose was in the range 1-40 mGy for gamma and alpha irradiations and 1-40 mSv for neutron irradiation, respectively. No high temperature peak, nor significant change of the glow curve shape were found after irradiation by high LET radiations. Both detectors showed a linear response of TL signals in the dose range used. Gamma sensitivity of Al2O3:C as compared to CaF2:Mn was 6:1. Relative TL efficiency for alpha particle irradiation as compared to gamma exposure was about 0.03 and 0.18 for Al2O3:C and CaF2:Mn, respectively. Neutron sensitivity was found to be similar (about 0.04 as compared to gamma irradiation) for both materials. Results indicate that for both materials investigated the TL sensitivity decreases with increasing LET, moreover their glow curves do not possess peaks for selective assessment of low and high LET radiation dose separately. The relative high TL efficiency of CaF2:Mn for alpha particle irradiation and the unexpected split of its peak in two components suggests to plane further investigations to determine the effect of proton irradiation as well.
Izvorni jezik
Hrvatski
Znanstvena područja
Kemija
POVEZANOST RADA
