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STUDY ON X-RAYS AND NEUTRONS LEAKED FROM A 45 MeV ELECTRON LINAC FACILITY
Sawamura, Sadashi,Kitaichi, Masatoshi,Nojiri, Ichiro,Yamada, Takuma,Kaneko, Junichi,Sawamura, Teruko Korean Association for Radiation Protection 2001 방사선방어학회지 Vol.26 No.3
Spatial and time distributions of x-rays and neutrons from Hokkaido University 45 MeV electron linac facility were measured and compared with the calculation. In the calculation, x-rays in a Pb-target were evaluated using the EGS-code. The x-rays and the neutrons from the target to the facility building boundary and skyshine process outside the facility building were simulated with the EGS and the MCNP respectively.
Horie, Yukihiro,Meguro, Akira,Kitaichi, Nobuyoshi,Lee, Eun Bong,Kanda, Atsuhiro,Noda, Kousuke,Song, Yeong Wook,Park, Kyung Sook,Namba, Kenichi,Ota, Masao,Inoko, Hidetoshi,Mizuki, Nobuhisa,Ishida, Susu Oxford University Press ; Distributed by Mercury I 2012 Rheumatology Vol.51 No.6
<P>Beh?et's disease is one of the major aetiologies of uveitis causing blindness in Asian countries. A genome-wide association study identified six microsatellite markers as disease susceptibility loci for Japanese patients with Beh?et's disease. To confirm our recent results, these microsatellite markers were examined in a Korean population as a replication study.</P>
STUDY ON X-RAYS AND NEUTRONS LEAKED FROM A 45 MeV ELECTRON LINAC FACILITY
Sadashi, Sawamura,Masatoshi, Kitaichi,Ichiro, Nojiri,Takuma Yamada,Junichi, Kaneko,Teruko, Sawamura 대한방사선 방어학회 2001 방사선방어학회지 Vol.26 No.3
Spatial and time distributions of x-rays and neutrons from Hokkaido University 45 MeV electron linac facility were measured and compared with the calculation. In the calculation, x-rays in a Pb-target were evaluated using the EGS-code. The x-rays and the neutrons from the target to the facility building boundary and skyshine processs outside the facility building were simulated with the EGS and the MCNP respectively.
Do, Kyung-Hyun,Lee, Jin Seong,Colby, Thomas V,Kitaichi, Masanori,Kim, Dong Soon Lippincott Williams Wilkins, Inc. 2005 Journal of computer assisted tomography Vol.29 No.4
OBJECTIVE:: To assess the capability of the density histogram of high-resolution CT (HRCT) in differentiating nonspecific interstitial pneumonia (NSIP) from usual interstitial pneumonia (UIP) without definite honeycombing. METHODS:: Twenty-eight NSIP and 32 UIP patients without definite honeycombing on CT were included in this study. We evaluated a CT image at the level of 1 cm above the diaphragm. The pixels of the lung parenchyma were classified into 4 ranges. The fractions of each range of corresponding density were calculated. The skewness (the degree of asymmetry of a distribution) and kurtosis (how sharply peaked a histogram is) were obtained from the density histogram. The mean value and the mode value of the lung attenuation were also measured. RESULTS:: The fraction of the range of ground-glass opacity and reticular opacity was greater in NSIP patients (32%, 12%) than in UIP patients (23%, 8%) (P < 0.001). UIP had a larger fraction of the range of normal lung. The density histogram was less skewed (P = 0.01) and had a wider peak (P = 0.02) in NSIP (skewness = 1.2879 ± 0.5672, kurtosis = 1.2115 ± 1.9470) than in UIP (skewness = 1.6426 ± 0.4664, kurtosis = 2.3880 ± 1.8183). CONCLUSION:: The density histogram reflected the differences in the CT features between NSIP and UIP. Therefore, a density histogram may be helpful for differentiating NSIP from UIP without definite honeycombing.