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Kinase, Sakae; Takagi, Shunji*; Noguchi, Hiroshi; Saito, Kimiaki
Proceedings of 11th International Congress of the International Radiation Protection Association (IRPA-11) (CD-ROM), 7 Pages, 2004/05
The present study was performed to validate the UCWBC code for calibrating in vivo measurements. Furthermore, the calibration data for the adult voxel phantoms developed in JAERI were evaluated by the UCWBC code in order to examine the differences between the calibration data for voxel phantoms, including a voxel version of water-filled block-shape phantom based on an actual phantom that is used for the calibration of the whole-body counter in JAERI. It was found that the calculated calibration data by the UCWBC code for the water-filled block-shape phantom show good agreement with measured ones. Consequently, the UCWBC code was validated by the comparisons. It was also found that the calibration data depend on phantoms of different sizes and the effective distance between phantom and detector. The calibration of in vivo measurements using voxel phantoms for individuals would be quite useful for the improvement in accuracy of the measurement results.
Kinase, Sakae
JAERI-Research 2003-011, 104 Pages, 2003/05
In the present study, a calibration technique for in vivo counting application using Monte Carlo simulation was developed. The advantage of the technique is that counting efficiency can be obtained for various shapes, sizes that is very difficult to change for phantoms. The method for the determination of counting efficiency curves as a function of energy was developed using the present technique and a physiques correction equation was derived from the relationship between parameters of correction factor and counting efficiencies of the JAERI whole-body counter. The uncertainties in body burdens of Cs-137 estimated with the JAERI whole-body counter were also investigated using the Monte Carlo simulation and measurements. Furthermore, the evaluation method of the peak efficiencies of a Ge semi-conductor detector was developed by the Monte Carlo simulation for optimum arrangement of Ge semi-conductor detectors for designing a precision whole-body counter.
Yamamoto, Tetsuya*; Matsumura, Akira*; Yamamoto, Kazuyoshi; Kumada, Hiroaki; Hori, Naohiko; Torii, Yoshiya; Endo, Kiyoshi*; Matsushita, Akira*; Yoshida, Fumiyo*; Shibata, Yasushi*; et al.
Research and Development in Neutron Capture Therapy, p.697 - 700, 2002/09
The RBE of dose components generated in boron neutron capture therapy (BNCT) were separately determined in neutron beams at JRR-4. The cell killing effect of the neutron beam with or without the presence of 10B was highly dependent on the neutron beam used, according to the epithermal and fast neutron content in the beam. RBE (BARBEboron) values of the boron capture reaction for an epithermal (ENB), a mixed thermal-epithermal (TNB-1), and a thermal (TNB-2) neutron beams were 3.990.24, 3.04
0.19 and 1.43
0.08, respectively.
JAERI-Conf 95-006, 207 Pages, 1995/03
no abstracts in English
Asano, Masaharu; Yoshida, Masaru; Omichi, Hideki; Okabe, Kazuhiko*; Mashimo, Toru*; Yuasa, Hisako*; Yamanaka, Hidetoshi*; Suzuki, K.*; ;
Pharm. Sci., 1, p.433 - 435, 1995/00
no abstracts in English
Asano, Masaharu; Yoshida, Masaru; Omichi, Hideki; Yamanaka, Hidetoshi*
Maku, 17(4), p.216 - 227, 1992/07
no abstracts in English
; Yoshida, Masaru; Asano, Masaharu; Kumakura, Minoru; Mashimo, Toru*; Yuasa, Hisako*; Imai, Koichi*; Yamanaka, Hidetoshi*
Biomaterials, 12, p.433 - 437, 1991/05
Times Cited Count:34 Percentile:85.33(Engineering, Biomedical)no abstracts in English
; Yoshida, Masaru; ; Asano, Masaharu; Kumakura, Minoru; Mashimo, Toru*; Yamanaka, Hidetoshi*;
Int. J. Pharm., 68, p.87 - 95, 1991/00
no abstracts in English
; Yoshida, Masaru; Asano, Masaharu; Kumakura, Minoru; Mashimo, Toru*; Yuasa, Hisako*; Imai, Koichi*; Yamanaka, Hidetoshi*; ; Suzuki, K.*
J. Biomed. Mater. Res., 25, p.315 - 328, 1991/00
Times Cited Count:17 Percentile:57.14(Engineering, Biomedical)no abstracts in English
Asano, Masaharu; ; Yoshida, Masaru; Kumakura, Minoru; Mashimo, Toru*; Yuasa, Hisako*; Imai, Koichi*; Yamanaka, Hidetoshi*
Drug Des. Delivery, 5, p.301 - 320, 1990/00
no abstracts in English
Asano, Masaharu; Yoshida, Masaru; ; Kumakura, Minoru; Mashimo, Toru*; Yuasa, Hisako*; Imai, Koichi*; Yamanaka, Hidetoshi*
European Polymer Journal, 26(1), p.29 - 33, 1990/00
Times Cited Count:10 Percentile:49.10(Polymer Science)no abstracts in English
; ; Yoshida, Masaru; ; Asano, Masaharu; Kumakura, Minoru
Makromol. Chem., 191, p.2077 - 2082, 1990/00
no abstracts in English
; Yoshida, Masaru; Asano, Masaharu; Kumakura, Minoru; Mashimo, Toru*; Yuasa, Hisako*; Imai, Koichi*; Yamanaka, Hidetoshi*; ; Suzuki, K.*
Journal of Controlled Release, 10, p.293 - 303, 1989/00
no abstracts in English
; ; Yoshida, Masaru; Asano, Masaharu; Kumakura, Minoru
Makromol. Chem., 190, p.2407 - 2415, 1989/00
no abstracts in English
; Asano, Masaharu; Kaetsu, Isao; ; ; ; ; ; ;
Polym.J., 18(4), p.287 - 296, 1986/00
Times Cited Count:9 Percentile:51.70(Polymer Science)no abstracts in English
Asano, Masaharu; ; Kaetsu, Isao; ; ; ; ;
Seitai Zairyo, 4(2), p.65 - 75, 1986/00
no abstracts in English
Asano, Masaharu; ; Kaetsu, Isao; ; ; ; ;
Kobunshi Rombunshu, 42(10), p.783 - 791, 1985/00
Times Cited Count:2 Percentile:22.23(Polymer Science)no abstracts in English
; Asano, Masaharu; Kaetsu, Isao; ; ; ; ;
Biomaterials, 4, p.33 - 38, 1983/00
Times Cited Count:17 Percentile:68.03(Engineering, Biomedical)no abstracts in English
Asano, Masaharu; ; Kaetsu, Isao; ; ;
Kobunshi Rombunshu, 40(9), p.525 - 530, 1983/00
Times Cited Count:5 Percentile:38.22(Polymer Science)no abstracts in English
; Asano, Masaharu; Kaetsu, Isao; ; ; ;
Igaku No Ayumi, 122(2), p.103 - 104, 1982/00
no abstracts in English