Masashi YAMAMOTO
著者に関連した記事は3件です。
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第5回
3.95 MeV X-band Linacを用いた高エネルギーX線非破壊検査装置の開発
著者:
山本 智彦,Tomohiko YAMAMOTO,夏井 拓也,Takuya NATSI,上坂 充,Mitsuru UESAKA,田辺 英二,Eiji TANABE,中村 直樹,Naoki NAKAMURA,山本 昌志,Masashi YAMAMOTO
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Condition Based Maintenance Magnetron X-band Linac X-ray
山本 智彦,Tomohiko YAMAMOTO,夏井 拓也,Takuya NATSI,上坂 充,Mitsuru UESAKA,田辺 英二,Eiji TANABE,中村 直樹,Naoki NAKAMURA,山本 昌志,Masashi YAMAMOTO
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Condition Based Maintenance Magnetron X-band Linac X-ray
We are developing portable non-destructive testing (NDT) X-ray source with X-band linac and low power magnetron. Now, we start the experiment of electron acceleration and X-ray generation using by 950 keV X-band linac NDT system. The 950 keV X-band linac X-ray generator is under development for corrosion wastage of tubes and condition bas ed maintenance of impeller pumps. However, about 1 MeV X-ray source can be only used for thin tubes of about 20 mm thickness. Therefore, we start to design about 4 MeV X-...
英字タイトル:
Development of High Energy X-ray NDT System with 3.95 MeV X-band Linac
英字タイトル:
Development of High Energy X-ray NDT System with 3.95 MeV X-band Linac
第9回
可搬型 950keVXバンドライナック X 線源による非破壊検査の実証研究
著者:
金 明,Ming JIN,藤原 健,Takeshi FUJIWARA,朱 海寿,Haitao ZHU,土橋 克広,Katsuhiro DOBASHI,出町 和之,Kazuyuki DEMACHI,上坂 充,Mitsuru UESAKA,草野 譲一,Joichi KUSANO,山本 昌志,Masashi YAMAMOTO,中村 直樹,Naoki NAKAMURA,田辺 英二,Eiji TANABE,三浦 到,Itaru MIURA,服部 行也,Yukiya HATTORI
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linac NDT onsite inspection pipe wall thinning X-band
金 明,Ming JIN,藤原 健,Takeshi FUJIWARA,朱 海寿,Haitao ZHU,土橋 克広,Katsuhiro DOBASHI,出町 和之,Kazuyuki DEMACHI,上坂 充,Mitsuru UESAKA,草野 譲一,Joichi KUSANO,山本 昌志,Masashi YAMAMOTO,中村 直樹,Naoki NAKAMURA,田辺 英二,Eiji TANABE,三浦 到,Itaru MIURA,服部 行也,Yukiya HATTORI
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linac NDT onsite inspection pipe wall thinning X-band
Our portable X-band (9.3GHz) 950KeV linac has been successfully upgraded. The problems of RF power oscillation , beam current oscillation and reduction and finally lack of X-ray intensity were solved by replacing the axia l coupling cavities with the side-coupled ones. Designed X-ray dose rate of 0.05 Sv/min@lm is going to be achi eved. Length of the accelerating tube is reduced to less than 25 cm. X-ray source part with the local radiation shielding is connected by the flexible waveguide with the box of t...
英字タイトル:
Study on Portable X-band 950keV linac X-ray Sourcefor On-site Nondestructive Inspection
英字タイトル:
Study on Portable X-band 950keV linac X-ray Sourcefor On-site Nondestructive Inspection
第12回
窒化・酸化・浸炭競合環境における ステンレス鋼製加熱管の減肉機構解明
著者:
山本 康平,Kohei YAMAMOTO,阿部 博志,Hiroshi ABE,渡邉 豊,Yutaka WATANABE,有岡 真平,Shinpei ARIOKA,小野 雅史,Masashi ONO
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austenitic stainless steel chemical plant crystal structure nitride spalling thinning
山本 康平,Kohei YAMAMOTO,阿部 博志,Hiroshi ABE,渡邉 豊,Yutaka WATANABE,有岡 真平,Shinpei ARIOKA,小野 雅史,Masashi ONO
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austenitic stainless steel chemical plant crystal structure nitride spalling thinning
It was reported that nitride layer formed on SUS310S heating tubes in the reactor of melamine production plant showed severe spalling susceptibility. After replacement to SUS304heating tubes, spalling and thinning was suppressed. According to previous studies, a crystal structure of the nitrided layers of SUS310S and SUS304 heating tubes mainly consist of γ’ and α’, respectively. The reason why the SUS304 heating tube showed low spalling susceptibility was considered to be a smaller expansion rate of α...
英字タイトル:
Wastage mechanism of heating tubes made of austenitic stainless steels in a complex environment of nitriding, oxidizing, and carburizing
英字タイトル:
Wastage mechanism of heating tubes made of austenitic stainless steels in a complex environment of nitriding, oxidizing, and carburizing