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Journal Articles

Production of $$^{266}$$Bh in the $$^{248}$$Cm($$^{23}$$Na,5$$n$$)$$^{266}$$Bh reaction and its decay properties

Haba, Hiromitsu*; Fan, F.*; Kaji, Daiya*; Kasamatsu, Yoshitaka*; Kikunaga, Hidetoshi*; Komori, Yukiko*; Kondo, Narumi*; Kudo, Hisaaki*; Morimoto, Koji*; Morita, Kosuke*; et al.

Physical Review C, 102(2), p.024625_1 - 024625_12, 2020/08

 Times Cited Count:2 Percentile:57.67(Physics, Nuclear)

Journal Articles

Rational evaluation of the therapeutic effect and dosimetry of auger electrons for radionuclide therapy in a cell culture model

Shinohara, Ayaka*; Hanaoka, Hirofumi*; Sakashita, Tetsuya*; Sato, Tatsuhiko; Yamaguchi, Aiko*; Ishioka, Noriko*; Tsushima, Yoshito*

Annals of Nuclear Medicine, 32(2), p.114 - 122, 2018/02

 Times Cited Count:6 Percentile:53.26(Radiology, Nuclear Medicine & Medical Imaging)

Radionuclide therapy with low-energy auger electron emitters could potentially provide high anti-tumor efficacy while keeping normal organs toxicity low. In this study, we evaluated the usefulness of auger electron emitter $$^{125}$$I and compared it with beta-emitter $$^{131}$$I for tumor treatment in 2D and 3D cell culture models. The computer simulation model for 2D and 3D cell culture were constructed, and the absorbed radiation dose of $$^{125}$$I or $$^{131}$$I in each model were calculated by using a Monte Carlo simulation code (PHITS). The therapeutic effect of $$^{125}$$I was comparable to that of $$^{131}$$I in 2D model, but the efficacy was inferior to that of $$^{131}$$I-MIBG in 3D model, since crossfire effect is negligible and the homogeneous distribution of radionuclide was insufficient.

Journal Articles

Neutron capture cross section to $$^{113}$$Cd isomer and $$_{s-}$$process contribution to rare $$_{p-}$$nuclide $$^{115}$$Sn

Hayakawa, Takehito; Shizuma, Toshiyuki; Chiba, Satoshi; Kajino, Toshitaka*; Hatsukawa, Yuichi; Iwamoto, Nobuyuki; Shinohara, Nobuo; Harada, Hideo

Astrophysical Journal, 707(2), p.859 - 865, 2009/12

 Times Cited Count:5 Percentile:19.16(Astronomy & Astrophysics)

no abstracts in English

JAEA Reports

Report of investigation on malfunction of reserved shutdown system in HTTR

Hamamoto, Shimpei; Iigaki, Kazuhiko; Shimizu, Atsushi; Sawahata, Hiroaki; Kondo, Makoto; Oyama, Sunao; Kawano, Shuichi; Kobayashi, Shoichi; Kawamoto, Taiki; Suzuki, Hisashi; et al.

JAEA-Technology 2006-030, 58 Pages, 2006/03

JAEA-Technology-2006-030.pdf:10.69MB

During normal operation of High Temperature engineering Test Reactor (HTTR) in Japan Atomic Energy Agency (JAEA), the reactivity is controlled by the Control Rods (CRs) system which consists of 32 CRs (16 pairs) and 16 Control Rod Drive Mechanisms (CRDMs). The CR system is located in stand-pipes accompanied by the Reserved Shutdown System (RSS). In the unlikely event that the CRs fail to be inserted, the RSS is provided to insert B$$_{4}$$C/C pellets into the core. The RSS shall be designed so that the reactor should be held subcriticality from any operation condition by dropping in the pellets. The RSS consists of B$$_{4}$$C/C pellets, hoppers which contain the pellets, electric plug, driving mechanisms, guide tubes and so on. In accidents when the CRs cannot be inserted, an electric plug is pulled out by a motor and the absorber pellets fall into the core by gravity. A trouble, malfunction of one RSS out of sixteen, occurred during a series of the pre-start up checks of HTTR on February 21, 2005. We investigated the cause of the RSS trouble and took countermeasures to prevent the issue. As the result of investigation, the cause of the trouble was attributed to the following reason: In the motor inside, The Oil of grease of the multiplying gear flowed down from a gap of the oil seal which has been deformed and was mixed with abrasion powder of brake disk. Therefore the adhesive mixture prevented a motor from rotating.

Journal Articles

New $$s$$-process path and its implications for a $$^{187}$$Re-$$^{187}$$Os nucleo-cosmochronometer

Hayakawa, Takehito; Shizuma, Toshiyuki; Kajino, Toshitaka*; Chiba, Satoshi; Shinohara, Nobuo; Nakagawa, Tsuneo; Arima, Taiko*

Astrophysical Journal, 628(1, Part1), p.533 - 540, 2005/07

 Times Cited Count:20 Percentile:50.72(Astronomy & Astrophysics)

no abstracts in English

Journal Articles

New technique for the determination of trace elements using multiparameter coincidence spectrometry

Hatsukawa, Yuichi; Toh, Yosuke; Oshima, Masumi; Hayakawa, Takehito; Shinohara, Nobuo; Kushita, Kohei; Ueno, Takashi; Toyoda, Kazuhiro*

Journal of Radioanalytical and Nuclear Chemistry, 255(1), p.111 - 113, 2003/01

 Times Cited Count:12 Percentile:64.02(Chemistry, Analytical)

no abstracts in English

Journal Articles

Electric-dipole transition probabilities between yrast bands in $$^{157}$$Gd

Hayakawa, Takehito; Toh, Yosuke; Oshima, Masumi; Matsuda, Makoto; Hatsukawa, Yuichi; Shinohara, Nobuo; Iimura, Hideki; Shizuma, Toshiyuki; Zhang, Y.*; Sugawara, Masahiko*; et al.

Physics Letters B, 551(1-2), p.79 - 85, 2003/01

 Times Cited Count:9 Percentile:54.08(Astronomy & Astrophysics)

no abstracts in English

Journal Articles

Isotopic ratio of $$^{129}$$I/$$^{127}$$I in seaweed measured by neutron activation analysis with $$gamma$$-$$gamma$$ coincidence

Toh, Yosuke; Hatsukawa, Yuichi; Oshima, Masumi; Shinohara, Nobuo; Hayakawa, Takehito; Kushita, Kohei; Ueno, Takashi

Health Physics, 83(1), p.110 - 113, 2002/07

 Times Cited Count:10 Percentile:56.97(Environmental Sciences)

no abstracts in English

Journal Articles

A High-sensitivity and non-destructive trace element analysis based on multiple $$gamma$$-ray detection

Oshima, Masumi; Toh, Yosuke; Hatsukawa, Yuichi; Hayakawa, Takehito; Shinohara, Nobuo

Journal of Nuclear Science and Technology, 39(4), p.292 - 294, 2002/04

 Times Cited Count:16 Percentile:71.53(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Application of multiparameter coincidence spectrometry using a Ge detectors array to neutron activation analysis

Hatsukawa, Yuichi; Oshima, Masumi; Hayakawa, Takehito; Toh, Yosuke; Shinohara, Nobuo

Nuclear Instruments and Methods in Physics Research A, 482(1-2), p.328 - 333, 2002/04

 Times Cited Count:23 Percentile:81.34(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Comparison method for neutron activation analysis with $$gamma$$-$$gamma$$ matrix

Toh, Yosuke; Oshima, Masumi; Hatsukawa, Yuichi; Hayakawa, Takehito; Shinohara, Nobuo

Journal of Radioanalytical and Nuclear Chemistry, 250(2), p.373 - 376, 2001/11

 Times Cited Count:16 Percentile:74.78(Chemistry, Analytical)

no abstracts in English

Journal Articles

Improvement of neutron activation analysis due to coincident $$gamma$$-ray detection

Oshima, Masumi; Hatsukawa, Yuichi; Toh, Yosuke; Hayakawa, Takehito; Shinohara, Nobuo

Kagaku To Kyoiku, 49(9), p.552 - 553, 2001/09

no abstracts in English

Journal Articles

Multiple Coulomb excitation of a $$^{76}$$Ge beam

Toh, Yosuke; Czosnyka, T.*; Oshima, Masumi; Hayakawa, Takehito; Kusakari, Hideshige*; Sugawara, Masahiko*; Osa, Akihiko; Koizumi, Mitsuo; Hatsukawa, Yuichi; Katakura, Junichi; et al.

Journal of Physics G; Nuclear and Particle Physics, 27(7), p.1475 - 1480, 2001/07

 Times Cited Count:29 Percentile:82.47(Physics, Nuclear)

no abstracts in English

Journal Articles

Measurement of long-lived nuclides by multi-$$gamma$$ ray analysis

Hatsukawa, Yuichi; Toh, Yosuke; Oshima, Masumi; Hayakawa, Takehito; Shinohara, Nobuo; Kushita, Kohei; Ueno, Takashi

KEK Proceedings 2001-14, p.193 - 194, 2001/06

no abstracts in English

Journal Articles

Application of multidimensional spectrum analysis for neutron activation analysis

Hatsukawa, Yuichi; Oshima, Masumi; Hayakawa, Takehito; Toh, Yosuke; Shinohara, Nobuo

Journal of Radioanalytical and Nuclear Chemistry, 248(1), p.121 - 124, 2001/04

 Times Cited Count:6 Percentile:45.58(Chemistry, Analytical)

no abstracts in English

Journal Articles

A High-sensitivity, non-destructive trace element analysis

Oshima, Masumi; Toh, Yosuke; Hayakawa, Takehito; Hatsukawa, Yuichi; Shinohara, Nobuo

JAERI-Conf 2001-002, p.532 - 534, 2001/03

no abstracts in English

Journal Articles

Coulomb excitation of $$^{74}$$Ge beam

Toh, Yosuke; Czosnyka, T.*; Oshima, Masumi; Hayakawa, Takehito; Kusakari, Hideshige*; Sugawara, Masahiko*; Hatsukawa, Yuichi; Katakura, Junichi; Shinohara, Nobuo; Matsuda, Makoto

European Physical Journal A, 9(3), p.353 - 356, 2000/11

 Times Cited Count:44 Percentile:87.33(Physics, Nuclear)

no abstracts in English

Journal Articles

Yrast bands in N=91 isotones

Hayakawa, Takehito; Oshima, Masumi; Hatsukawa, Yuichi; Katakura, Junichi; Iimura, Hideki; Matsuda, Makoto; Shinohara, Nobuo; Toh, Yosuke; Mitarai, Shiro*; Shizuma, Toshiyuki; et al.

European Physical Journal A, 9(2), p.153 - 156, 2000/10

 Times Cited Count:16 Percentile:65.84(Physics, Nuclear)

no abstracts in English

Journal Articles

Observation of signature inversion in odd-odd $$^{178}$$Ir

Zhang, Y. H.*; Hayakawa, Takehito; Oshima, Masumi; Toh, Yosuke; Katakura, Junichi; Hatsukawa, Yuichi; Matsuda, Makoto; Shinohara, Nobuo; Ishii, Tetsuro; Kusakari, Hideshige*; et al.

European Physical Journal A, 8(4), p.439 - 442, 2000/09

 Times Cited Count:14 Percentile:61.97(Physics, Nuclear)

no abstracts in English

Journal Articles

Development of trace element analysis by using multi dimensional analysis

Hatsukawa, Yuichi; Oshima, Masumi; Hayakawa, Takehito; Toh, Yosuke; Shinohara, Nobuo

Hoshaka Bunseki, (10), p.19 - 20, 2000/03

no abstracts in English

26 (Records 1-20 displayed on this page)