Keywords:
Not applicable, Experimental, Occupational / Environmental hazards, Dosimetric comparison, Radiation safety, Dosimetry, CT, Radioprotection / Radiation dose, Radiographers
Authors:
Y. Takei1, S. Suzuki2, H. Itoh3, M. Hashimoto4, H. Ueno5, A. Hirosawa5, S. Ishizaki3, K. Matsubara6, I. Kobayashi7; 1Kurashiki/JP, 2Nagoya, Aichi/JP, 3Toyama/JP, 4Kobe/JP, 5Takaoka/JP, 6Kanazawa/JP, 7Tsukuba, Ibaraki/JP
DOI:
10.26044/ecr2020/C-00463
Results
Scatter X-rays dosimetry: The air kerma of scatter X-rays which measured by ion chamber and solid-state survey meter were 0.18 mGy both SE and DE scan, respectively (see fig.6 upper).
Effective Energy of Scatter X-rays dosimetry: The effective energy of scatter X-rays which measured by solid state survey meter were 59, 65 keV both SE and DE scan, respectively (see fig.6 lower).
Penetration Measured with lead and non-lead aprons: Fig.7 shows the relative percent penetration value with SE scan as a percentage of the incident beam intensity with lead of 0.25, 0.35 and 0.5 mm thickness aprons were 12.8, 5.2 and 5.1%, respectively, and non-lead of 0.25, 0.35 and 0.5 mm thickness aprons were 17.1, 9.0, and 8.4%, respectively.
Fig.8 shows the relative percent penetration value with DE scan as a percentage of incident beam intensity with lead of 0.25, 0.35 and 0.5 mm thickness aprons were 17.3, 6.7 and 6.2%, respectively, and non-lead of 0.25, 0.35 and 0.5 mm thickness aprons were 20.1, 13.4 and 8.6%, respectively.
Fig.9 shows the weight of lead aprons different lead of 0.25, 0.35 and 0.5 mm thickness were 4.3, 5.5 and 6.3 kg, respectiveley, and non-lead of 0.25, 0.35 and 0.5 mm thickness aprons were 3.5, 4.5 and 5.3 kg, respectively.