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Journal Articles

Optimized TES microcalorimeters with 14 eV energy resolution at 30 keV for $$gamma$$-ray measurements of the $$^{229}$$Th isomer

Muramatsu, Haruka*; Hayashi, Tasuku*; Yuasa, Naoki*; Konno, Ryohei*; Yamaguchi, Atsushi*; Mitsuda, Kazuhisa*; Yamasaki, Noriko*; Maehata, Keisuke*; Kikunaga, Hidetoshi*; Takimoto, Misaki; et al.

Journal of Low Temperature Physics, 200(5-6), p.452 - 460, 2020/09

 Times Cited Count:0 Percentile:0(Physics, Applied)

Journal Articles

Energy of the $$^{229}$$Th nuclear clock isomer determined by absolute $$gamma$$-ray energy difference

Yamaguchi, Atsushi*; Muramatsu, Haruka*; Hayashi, Tasuku*; Yuasa, Naoki*; Nakamura, Keisuke; Takimoto, Misaki; Haba, Hiromitsu*; Konashi, Kenji*; Watanabe, Makoto*; Kikunaga, Hidetoshi*; et al.

Physical Review Letters, 123(22), p.222501_1 - 222501_6, 2019/11

 Times Cited Count:15 Percentile:86.53(Physics, Multidisciplinary)

Journal Articles

Spectroscopic measurements of L X-rays with a TES microcalorimeter for a non-destructive assay of transuranium elements

Nakamura, Keisuke; Morishita, Yuki; Takasaki, Koji; Maehata, Keisuke*; Sugimoto, Tetsuya*; Kiguchi, Yu*; Iyomoto, Naoko*; Mitsuda, Kazuhisa*

Journal of Low Temperature Physics, 193(3-4), p.314 - 320, 2018/11

 Times Cited Count:0 Percentile:0(Physics, Applied)

Journal Articles

Uniaxial-pressure control of magnetic phase transitions in a frustrated magnet CuFe$$_{1-x}$$Ga$$_{x}$$O$$_{2}$$ (x =0, 0.018)

Nakajima, Taro*; Mitsuda, Setsuo*; Takahashi, Keiichiro*; Yoshitomi, Keisuke*; Masuda, Kazuya*; Kaneko, Chikafumi*; Homma, Yuki*; Kobayashi, Satoru*; Kitazawa, Hideaki*; Kosaka, Masashi*; et al.

Journal of the Physical Society of Japan, 81(9), p.094710_1 - 094710_8, 2012/09

Journal Articles

Uniaxial-pressure control of magnetic phase transitions in a frustrated magnet CuFe$$_{1-x}$$Ga$$_{x}$$O$$_{2}$$ ($$x$$ = 0, 0.018)

Nakajima, Taro*; Mitsuda, Setsuo*; Takahashi, Keiichiro*; Yoshitomi, Keisuke*; Masuda, Kazuya*; Kaneko, Chikafumi*; Homma, Yuki*; Kobayashi, Satoru*; Kitazawa, Hideaki*; Kosaka, Masashi*; et al.

Journal of the Physical Society of Japan, 81(9), p.094710_1 - 094710_8, 2012/09

 Times Cited Count:12 Percentile:62.78(Physics, Multidisciplinary)

Journal Articles

Exchange-striction associated with the elliptical proper helical magnetic structure in the ferroelectric phase of CuFe$$_{1-y}$$Ga$$_{y}$$O$$_{2}$$

Terada, Noriki*; Nakajima, Taro*; Mitsuda, Setsuo*; Matsuda, Masaaki; Kakurai, Kazuhisa; Tanaka, Yoshihito*; Kitazawa, Hideaki*

Journal of Physics; Conference Series, 211(1), p.012005_1 - 012005_6, 2010/01

 Times Cited Count:2 Percentile:69.52

Oral presentation

Study of complex magnetic structures in frustrated magnets by means of polarized neutrons

Kakurai, Kazuhisa; Wakimoto, Shuichi; Matsuda, Masaaki*; Ishiwata, Shintaro*; Okuyama, Daisuke*; Taguchi, Yasujiro*; Tokura, Yoshiki*; Nishi, Masakazu*; Nakajima, Taro*; Mitsuda, Setsuo*; et al.

no journal, , 

Oral presentation

Detailed analysis of magnetic and crystalline structure of multiferroic CuFe$$_{1-x}$$Ga$$_{x}$$O$$_{2}$$ by means of CRYOPAD and RXS

Kaneko, Chikafumi*; Nakajima, Taro*; Mitsuda, Setsuo*; Terada, Noriki*; Wakimoto, Shuichi; Takeda, Masayasu; Kakurai, Kazuhisa; Tanaka, Yoshikazu*

no journal, , 

no abstracts in English

Oral presentation

Spectroscopic measurement of LX-rays emitted by transuranium elements using TES microcalorimeter

Maeda, Makoto*; Maehata, Keisuke*; Iyomoto, Naoko*; Ishibashi, Kenji*; Takasaki, Koji; Nakamura, Keisuke; Aoki, Katsunori; Mitsuda, Kazuhisa*; Tanaka, Keiichi*

no journal, , 

no abstracts in English

Oral presentation

The Spectroscopy of LX-rays emitted from transuranium element using transition edge sensor microcalorimeter

Nakamura, Keisuke; Maeda, Makoto*; Aoki, Katsunori; Yasumune, Takashi; Takasaki, Koji; Maehata, Keisuke*; Iyomoto, Naoko*; Ishibashi, Kenji*; Mitsuda, Kazuhisa*; Tanaka, Keiichi*

no journal, , 

no abstracts in English

Oral presentation

Study of high resolution spectroscopy of LX-rays emitted from TRU using TES microcalorimeter

Nakamura, Keisuke; Aoki, Katsunori; Takasaki, Koji; Maeda, Makoto*; Maehata, Keisuke*; Iyomoto, Naoko*; Ishibashi, Kenji*; Mitsuda, Kazuhisa*; Tanaka, Keiichi*

no journal, , 

no abstracts in English

Oral presentation

Development of a microcalorimeter for measurement of L X-rays emitted from transuranium elements

Nakamura, Keisuke; Maeda, Makoto; Maehata, Keisuke*; Iyomoto, Naoko*; Ishibashi, Kenji*; Takasaki, Koji; Mitsuda, Kazuhisa*

no journal, , 

A transition-edge-sensor (TES) microcalorimeter has been developed for measurement of X-rays and $$gamma$$-rays with ultra-high energy resolution. In this work, we developed a four-pixel TES microcalorimeter to measure L X-rays emitted by transuranium elements. Each TES was composed of bilayer film of a 120-nm-thick Au layer and a 50-nm-thick Ti layer, and the transition temperature was approximately 130 mK. An absorber deposited on each Au-Ti bilayer was a 5-$$mu$$m-thick layer of Au to achieve an absorption efficiency of 35-80% for the energy range of L X-rays (10-30 keV). The developed four pixel TES microcalorimeter was irradiated with L X-rays emitted form Pu-238, Pu-239, and Am-241 sources. As the result, we obtained an L X-ray energy spectrum with high energy resolution of $$sim$$40 eV (full width at half maximum) for an L X-ray of 17.75 keV.

Oral presentation

L X-ray spectrometry of transuranium elements using the TES microcalorimeter

Nakamura, Keisuke; Maeda, Makoto; Morishita, Yuki; Takasaki, Koji; Maehata, Keisuke*; Iyomoto, Naoko*; Ishibashi, Kenji*; Mitsuda, Kazuhisa*

no journal, , 

no abstracts in English

Oral presentation

L X-ray spectrometry of transuranium elements using the TES microcalorimeter

Nakamura, Keisuke; Sugimoto, Tetsuya*; Maehata, Keisuke*; Iyomoto, Naoko*; Ishibashi, Kenji*; Morishita, Yuki; Takasaki, Koji; Mitsuda, Kazuhisa*

no journal, , 

no abstracts in English

Oral presentation

High-resolution spectrometry of transuranium elements using the TES microcalorimeter

Nakamura, Keisuke; Sugimoto, Tetsuya*; Maehata, Keisuke*; Iyomoto, Naoko*; Ishibashi, Kenji*; Morishita, Yuki; Takasaki, Koji; Mitsuda, Kazuhisa*

no journal, , 

no abstracts in English

Oral presentation

A Spectroscopic study fo Th-229 isomer using X-ray microcalorimeter

Muramatsu, Haruka*; Yuasa, Naoki*; Hayashi, Tasuku*; Konno, Ryohei*; Yamaguchi, Atsushi*; Mitsuda, Kazuhisa*; Yamasaki, Noriko*; Kikunaga, Hidetoshi*; Nakamura, Keisuke; Takimoto, Misaki; et al.

no journal, , 

no abstracts in English

Oral presentation

Energy measurement of the lowest isomer level in Th-229 by transition edge sensors

Yamaguchi, Atsushi*; Muramatsu, Haruka*; Hayashi, Tasuku*; Mitsuda, Kazuhisa*; Yuasa, Naoki*; Maehata, Keisuke*; Nakamura, Keisuke; Takimoto, Misaki; Kikunaga, Hidetoshi*

no journal, , 

no abstracts in English

Oral presentation

Challenge to improve the $$^{229}$$Th isomer energy measurement with TES calorimeters

Tanaka, Keita*; Hirano, Kosuke*; Yamaguchi, Atsushi*; Muramatsu, Haruka*; Hayashi, Tasuku*; Yuasa, Naoki*; Nakamura, Keisuke; Takimoto, Misaki; Haba, Hiromitsu*; Shirasaki, Kenji*; et al.

no journal, , 

18 (Records 1-18 displayed on this page)
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