The energy spectrum of 662 keV photons in a water equivalent phantom

Tarim, ÜRKİYE; Gurler, ORHAN; Ozmutlu, E.; Yalcin, S.; Gundogdu, O.; Sharaf, J.; Bradley, D.

doi:10.1016/j.radphyschem.2012.03.019

The energy spectrum of 662 keV photons in a water equivalent phantom

Atıf İçin Kopyala

Tarim Ü., Gurler O., Ozmutlu E. N., Yalcin S., Gundogdu O., Sharaf J. M., ...Daha Fazla

RADIATION PHYSICS AND CHEMISTRY, sa.7, ss.745-748, 2012 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Basım Tarihi: 2012
Doi Numarası: 10.1016/j.radphyschem.2012.03.019
Dergi Adı: RADIATION PHYSICS AND CHEMISTRY
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.745-748
Bursa Uludağ Üniversitesi Adresli: Evet

Özet

Investigation is made on the energy spectrum of photons originating from interactions of 662 key primary gamma-ray photons emitted by a point source positioned at the centre of a water equivalent solid phantom of dimensions 19 cm x 19 cm x 24 cm. Peaks resulting from total energy loss (photo-peak) and multiple and back scattering have been observed using a 51 mm x 51 mm Nal(TI) detector; good agreement being found between the measured and simulated response functions. The energy spectrum of the gamma photons obtained through the Monte Carlo simulation reveals local maxima at about 100 key and 210 keV, being also observed in the experimental response function. Such spectra can be used as a method of testing the water equivalence of solid phantom media before their use for dosimetry measurements. (C) 2012 Elsevier Ltd. All rights reserved.