An imaging plate technique for evaluating energy attenuation in evaporated samples with different surface conditions.
In this paper, a new technique was proposed using an imaging plate (IP) as a useful tool for visually and quantitatively evaluating the attenuation of radiation energy on radiation sources. Samples were prepared by evaporating (241)Am solution on stainless steel disks with well-polished and non-polished surfaces. The samples were measured with an IP and then the obtained images were analysed based on two-dimensional photostimulated luminescence data. The images for the polished disks generally showed lower uniformity in the distribution than those for the non-polished disks. However, the detailed analysis of the images revealed a poor correlation between the source distribution and the attenuation of radiation energy for the disk samples, indicating that the non-uniformity of distribution was not a primary cause of the attenuation of radiation energy for the samples. The demonstration in this study showed a potential usefulness of the IP-based technique for evaluating self-absorption mechanisms, although the technique remains to be critically tested particularly using disk samples made by different preparation methods.
Saito
Fumihiro
F
Radiation Protection Department, Nuclear Science Research Institute, Tokai Research and Development Center, Japan Atomic Energy Agency, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan. saito.fumihiro@jaea.go.jp
Koarashi
Jun
J
Kurihara
Osamu
O
Kim
Eunjoo
E
D004867:Equipment Design; D019544:Equipment Failure Analysis; D005740:Gases / Q000032:analysis* / Q000737:chemistry; D008163:Luminescent Measurements / Q000295:instrumentation* / Q000379:methods; D011829:Radiation Dosage; D011868:Radioisotopes / Q000032:analysis* / Q000737:chemistry; D011874:Radiometry / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013499:Surface Properties
D005740:Gases; D011868:Radioisotopes