Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Hiromitsu, Takeda"'
Autor:
Koh-ichi Sakata, Jun Takada, Kaori Sato, Masaru Takagi, Kenichi Tanaka, Masakazu Hori, Ken-ichi Kamo, Hiromitsu Takeda, Gerard Bengua, Osamu Asanuma, Masato Hareyama, Kunihiko Tateoka, Satoru Endo
Publikováno v:
Journal of Radiation Research
This study sought to demonstrate the feasibility of estimating the source strength during implantation in brachytherapy. The requirement for measuring the strengths of the linked sources was investigated. The utilized sources were (125)I with air ker
Autor:
Jun Takada, Osamu Asanuma, Hiromitsu Takeda, Kunihiko Tateoka, Ken-ichi Kamo, Kenichi Tanaka, Kaori Sato, Masato Hareyama, Masaru Takagi
Publikováno v:
Journal of Radiation Research
The post-implantation dosimetry for brachytherapy using Monte Carlo calculation by EGS5 code combined with the source strength regression was investigated with respect to its validity. In this method, the source strength for the EGS5 calculation was
Autor:
Jun Takada, Masaru Takagi, Osamu Asanuma, Kaori Sato, Kunihiko Tateoka, Kenichi Tanaka, Ken-ichi Kamo, Satoru Endo, Masato Hareyama, Hiromitsu Takeda
Publikováno v:
Journal of Radiation Research
The aim of this study is to demonstrate the feasibility of estimating the strength of the moving radiation source during patient implantation. The requirement for the counting time was investigated by comparing the results of the measurements for the
Publikováno v:
Nihon Hoshasen Gijutsu Gakkai zasshi. 72(3)
Measurement of the half-value layer (HVL) is a difficult task in computed tomography (CT) , because a nonrotating X-ray tube must be used. The purpose of this study is to develop a lead-covered case, which enables HVL measurements with a rotating CT
Autor:
Ayaka, Hirakuri, Kanako, Numasawa, Hideki, Takeishi, Minato, Satomura, Hiromitsu, Takeda, Kuniaki, Harada, Osamu, Asanuma, Motomichi, Sakata
Publikováno v:
Japanese Journal of Radiological Technology. 68:720-725
The exposure of the eye lens caused by multi-detector row computed tomography (MDCT) of the temporal bone is a serious problem. Our aim was to evaluate the radiation dose to the eye lens by different scan baselines (orbitomeatal line; OML, acanthiome
Autor:
Masato Hareyama, Osamu Asanuma, Hiromitsu Takeda, Ken-ichi Kamo, Kaori Sato, Gerard Bengua, Toshikazu Ueda, Masaru Takagi, Kunihiko Tateoka, Kenichi Tanaka, Jun Takada
Publikováno v:
Medical Physics. 38:3069-3076
PURPOSE The aim of this study was to develop a dose calculation method which is applicable to the interseed attenuation and the geometry lacking the equilibrium radiation scatter conditions in brachytherapy. METHODS The dose obtained from measurement
Autor:
Kunihiko Tateoka, Osamu Asanuma, Kaori Sato, Jun Takada, Masaru Takagi, Kenichi Tanaka, Hiromitsu Takeda, Masato Hareyama, Ken-ichi Kamo
Publikováno v:
Progress in Nuclear Science and Technology. 4:888-890
Effect of Silicon and Bismuth on Solidification Structure of Thin Wall Spheroidal Graphite Cast Iron
Publikováno v:
MATERIALS TRANSACTIONS. 51:176-185
Although the thinning of spheroidal graphite cast iron castings has been promoted to reduce the weight of the castings, the thinning tends to cause chilling. Due to the chilling, the required mechanical properties can not be obtained. The addition of
Publikováno v:
Journal of the American Ceramic Society. 91:2897-2902
Nanoparticle dispersions of rare-earth hexaborides have been prepared using a media agitation mill and have been examined for optical properties. High visible light transmittance coupled with strong absorption in the near-infrared (NIR) wavelengths s
Autor:
Keisuke Murakami, Chikashi Deguchi, Hiroyuki Sumoto, Hiromitsu Takeda, Satoru Sugio, Donny Harisuseno
Publikováno v:
PROCEEDINGS OF HYDRAULIC ENGINEERING. 51:115-120
This paper aims to investigate the relations among reservoir sedimentation, rainfall and deforested area in the Omaru River watershed. For this purpose, land-covers of four dams in the Omaru River watershed are classified by using Landsat Thematic Ma