Search Results - "MICHIMASA, S"

The new MRTOF mass spectrograph following the ZeroDegree spectrometer at RIKEN’s RIBF facility by Rosenbusch, M., Wada, M., Chen, S., Takamine, A., Iimura, S., Hou, D., Xian, W., Yan, S., Schury, P., Hirayama, Y., Ito, Y., Ishiyama, H., Kimura, S., Kojima, T., Lee, J., Liu, J., Michimasa, S., Miyatake, H., Moon, J.Y., Mukai, M., Naimi, S., Nishimura, S., Niwase, T., Sonoda, T., Watanabe, Y.X., Wollnik, H.

“…A newly assembled multi-reflection time-of-flight mass spectrograph (MRTOF-MS) at RIKEN’s RIBF facility became operational for the first time in spring 2020;…”
Get full text

First Application of Mass Measurements with the Rare-RI Ring Reveals the Solar r-Process Abundance Trend at A=122 and A=123 by Li, H F, Naimi, S, Sprouse, T M, Mumpower, M R, Abe, Y, Yamaguchi, Y, Nagae, D, Suzaki, F, Wakasugi, M, Arakawa, H, Dou, W B, Hamakawa, D, Hosoi, S, Inada, Y, Kajiki, D, Kobayashi, T, Sakaue, M, Yokoda, Y, Yamaguchi, T, Kagesawa, R, Kamioka, D, Moriguchi, T, Mukai, M, Ozawa, A, Ota, S, Kitamura, N, Masuoka, S, Michimasa, S, Baba, H, Fukuda, N, Shimizu, Y, Suzuki, H, Takeda, H, Ahn, D S, Wang, M, Fu, C Y, Wang, Q, Suzuki, S, Ge, Z, Litvinov, Yu A, Lorusso, G, Walker, P M, Podolyak, Zs, Uesaka, T

“…The Rare-RI Ring (R3) is a recently commissioned cyclotronlike storage ring mass spectrometer dedicated to mass measurements of exotic nuclei far from…”
Get full text

Study of the N=32 and N=34 Shell Gap for Ti and V by the First High-Precision Multireflection Time-of-Flight Mass Measurements at BigRIPS-SLOWRI by Iimura, S, Rosenbusch, M, Takamine, A, Tsunoda, Y, Wada, M, Chen, S, Hou, D S, Xian, W, Ishiyama, H, Yan, S, Schury, P, Crawford, H, Doornenbal, P, Hirayama, Y, Ito, Y, Kimura, S, Koiwai, T, Kojima, T M, Koura, H, Lee, J, Liu, J, Michimasa, S, Miyatake, H, Moon, J Y, Naimi, S, Nishimura, S, Niwase, T, Odahara, A, Otsuka, T, Paschalis, S, Petri, M, Shimizu, N, Sonoda, T, Suzuki, D, Watanabe, Y X, Wimmer, K, Wollnik, H

“…The atomic masses of ^{55}Sc, ^{56,58}Ti, and ^{56-59}V have been determined using the high-precision multireflection time-of-flight technique. The…”
Get full text

Neutron capture reaction cross-section of 79Se through the 79Se(d,p) reaction in inverse kinematics by Imai, N., Dozono, M., Michimasa, S., Sumikama, T., Ota, S., Hayakawa, S., Hwang, J.W., Iribe, K., Iwamoto, C., Kawase, S., Kawata, K., Kitamura, N., Masuoka, S., Nakano, K., Schrock, P., Suzuki, D., Tsunoda, R., Wimmer, K., Ahn, D.S., Beliuskina, O., Chiga, N., Fukuda, N., Ideguchi, E., Kusaka, K., Miki, H., Miyatake, H., Nagae, D., Ohmika, S., Ohtake, M., Ong, H.J., Otsu, H., Sakurai, H., Shimizu, H., Shimizu, Y., Sun, X., Suzuki, H., Takaki, M., Takeda, H., Takeuchi, S., Teranishi, T., Watanabe, Y., Watanabe, Y.X., Yako, K., Yamada, H., Yamaguchi, H., Yang, L., Yanagihara, R., Yanagisawa, Y., Yoshida, K., Shimoura, S.

“…γ emission probabilities from unbound states in 78,80Se, populated by a neutron-transfer reaction (d,p) on 77,79Se nuclei in inverse kinematics, were measured…”
Get full text

Isomer decay spectroscopy of 164Sm and 166Gd: midshell collectivity around N=100 by Patel, Z, Söderström, P-A, Podolyák, Zs, Regan, P H, Walker, P M, Watanabe, H, Ideguchi, E, Simpson, G S, Liu, H L, Nishimura, S, Wu, Q, Xu, F R, Browne, F, Doornenbal, P, Lorusso, G, Rice, S, Sinclair, L, Sumikama, T, Wu, J, Xu, Z Y, Aoi, N, Baba, H, Bello Garrote, F L, Benzoni, G, Daido, R, Fang, Y, Fukuda, N, Gey, G, Go, S, Gottardo, A, Inabe, N, Isobe, T, Kameda, D, Kobayashi, K, Kobayashi, M, Komatsubara, T, Kojouharov, I, Kubo, T, Kurz, N, Kuti, I, Li, Z, Matsushita, M, Michimasa, S, Moon, C-B, Nishibata, H, Nishizuka, I, Odahara, A, Şahin, E, Sakurai, H, Schaffner, H, Suzuki, H, Takeda, H, Tanaka, M, Taprogge, J, Vajta, Zs, Yagi, A, Yokoyama, R

“…Excited states in the N=102 isotones 166Gd and 164Sm have been observed following isomeric decay for the first time at RIBF, RIKEN. The half-lives of the…”
Get full text

Separated flow operation of the SHARAQ spectrometer for in-flight proton-decay experiments by Dozono, M., Uesaka, T., Michimasa, S., Takaki, M., Kobayashi, M., Matsushita, M., Ota, S., Tokieda, H., Shimoura, S.

“…A new “separated flow” operating mode has been developed for in-flight proton-decay experiments using the SHARAQ spectrometer. In this mode, the protons and…”
Get full text

How Different is the Core of ^{25}F from ^{24}O_{g.s.} ? by Tang, T L, Uesaka, T, Kawase, S, Beaumel, D, Dozono, M, Fujii, T, Fukuda, N, Fukunaga, T, Galindo-Uribarri, A, Hwang, S H, Inabe, N, Kameda, D, Kawahara, T, Kim, W, Kisamori, K, Kobayashi, M, Kubo, T, Kubota, Y, Kusaka, K, Lee, C S, Maeda, Y, Matsubara, H, Michimasa, S, Miya, H, Noro, T, Obertelli, A, Ogata, K, Ota, S, Padilla-Rodal, E, Sakaguchi, S, Sakai, H, Sasano, M, Shimoura, S, Stepanyan, S S, Suzuki, H, Takaki, M, Takeda, H, Tokieda, H, Wakasa, T, Wakui, T, Yako, K, Yanagisawa, Y, Yasuda, J, Yokoyama, R, Yoshida, K, Zenihiro, J

“…The structure of a neutron-rich F25 nucleus is investigated by a quasifree (p,2p) knockout reaction at 270A  MeV in inverse kinematics. The sum of…”
Get full text

Development of CVD diamond detector for time-of-flight measurements by Michimasa, S., Takaki, M., Dozono, M., Go, S., Baba, H., Ideguchi, E., Kisamori, K., Matsubara, H., Miya, H., Ota, S., Sakai, H., Shimoura, S., Stolz, A., Tang, T.L., Tokieda, H., Uesaka, T., Zegers, R.G.T.

“…•Report on recent development of the polycrystalline CVD diamond detector.•Thin detector with extremely good timing resolution for time-of-flight…”
Get full text

Low-energy radioisotope beam separator CRIB by Yanagisawa, Y., Kubono, S., Teranishi, T., Ue, K., Michimasa, S., Notani, M., He, J.J., Ohshiro, Y., Shimoura, S., Watanabe, S., Yamazaki, N., Iwasaki, H., Kato, S., Kishida, T., Morikawa, T., Mizoi, Y.

“…A low-energy in-flight type RI beam separator, called CRIB, has been installed for nuclear physics and nuclear astrophysics by the Center for Nuclear Study,…”
Get full text

Mapping of a New Deformation Region around 62Ti by Michimasa, S

“…We performed the first direct mass measurements of neutron-rich scandium, titanium, and vanadium isotopes around the neutron number 40 at the RIKEN RI Beam…”
Get full text

First test experiment to produce the slowed-down RI beam with the momentum-compression mode at RIBF by Sumikama, T., Ahn, D.S., Fukuda, N., Inabe, N., Kubo, T., Shimizu, Y., Suzuki, H., Takeda, H., Aoi, N., Beaumel, D., Hasegawa, K., Ideguchi, E., Imai, N., Kobayashi, T., Matsushita, M., Michimasa, S., Otsu, H., Shimoura, S., Teranishi, T.

“…The 82Ge beam has been produced by the in-flight fission reaction of the 238U primary beam with 345MeV/u at the RIKEN RI beam factory, and slowed down to about…”
Get full text

Development of low-pressure multi-wire drift chambers for high-resolution spectroscopy with radioactive isotope beams by Miya, H., Ota, S., Fujii, T., Kawase, S., Kubota, Y., Lee, C.S., Matsubara, H., Miki, K., Saito, A., Michimasa, S., Uesaka, T., Sakai, H., Shimoura, S.

“…•Multi-wire drift chambers were developed for high intensity beams of 1MHz.•Low-pressure gas is used to minimize the effect of multiple scattering.•Tracking…”
Get full text

Inverse kinematics (p,n) reactions studies using the WINDS slow neutron detector and the SAMURAI spectrometer by Yasuda, J., Sasano, M., Zegers, R.G.T., Baba, H., Chao, W., Dozono, M., Fukuda, N., Inabe, N., Isobe, T., Jhang, G., Kameda, D., Kubo, T., Kurata-Nishimura, M., Milman, E., Motobayashi, T., Otsu, H., Panin, V., Powell, W., Sakai, H., Sako, M., Sato, H., Shimizu, Y., Stuhl, L., Suzuki, H., Tangwancharoen, S., Takeda, H., Uesaka, T., Yoneda, K., Zenihiro, J., Kobayashi, T., Sumikama, T., Tako, T., Nakamura, T., Kondo, Y., Togano, Y., Shikata, M., Tsubota, J., Yako, K., Shimoura, S., Ota, S., Kawase, S., Kubota, Y., Takaki, M., Michimasa, S., Kisamori, K., Lee, C.S., Tokieda, H., Kobayashi, M., Koyama, S., Kobayashi, N., Wakasa, T., Sakaguchi, S., Krasznahorkay, A., Murakami, T., Nakatsuka, N., Kaneko, M., Matsuda, Y., Mucher, D., Reichert, S., Bazin, D., Lee, J.W.

“…We have combined the low-energy neutron detector WINDS (Wide-angle Inverse-kinematics Neutron Detectors for SHARAQ) and the SAMURAI spectrometer at RIKEN…”
Get full text

Observation of isoscalar and isovector dipole excitations in neutron-rich 20 O by Nakatsuka, N., Baba, H., Aumann, T., Avigo, R., Banerjee, S.R., Bracco, A., Caesar, C., Camera, F., Ceruti, S., Chen, S., Derya, V., Doornenbal, P., Giaz, A., Horvat, A., Ieki, K., Inakura, T., Imai, N., Kawabata, T., Kobayashi, N., Kondo, Y., Koyama, S., Kurata-Nishimura, M., Masuoka, S., Matsushita, M., Michimasa, S., Million, B., Motobayashi, T., Murakami, T., Nakamura, T., Ohnishi, T., Ong, H.J., Ota, S., Otsu, H., Ozaki, T., Saito, A., Sakurai, H., Scheit, H., Schindler, F., Schrock, P., Shiga, Y., Shikata, M., Shimoura, S., Steppenbeck, D., Sumikama, T., Syndikus, I., Takeda, H., Takeuchi, S., Tamii, A., Taniuchi, R., Togano, Y., Tscheuschner, J., Tsubota, J., Wang, H., Wieland, O., Wimmer, K., Yamaguchi, Y., Yoneda, K., Zenihiro, J.

Get full text

Evidence for a new nuclear ‘magic number’ from the level structure of 54Ca by Steppenbeck, D., Takeuchi, S., Aoi, N., Doornenbal, P., Matsushita, M., Wang, H., Baba, H., Fukuda, N., Go, S., Honma, M., Lee, J., Matsui, K., Michimasa, S., Motobayashi, T., Nishimura, D., Otsuka, T., Sakurai, H., Shiga, Y., Söderström, P.-A., Sumikama, T., Suzuki, H., Taniuchi, R., Utsuno, Y., Valiente-Dobón, J. J., Yoneda, K.

“…A spectroscopic study highlights the ‘doubly magic’ nature of 54 Ca and provides direct experimental evidence for the onset of a sizable subshell closure at…”
Get full text

Magic Nature of Neutrons in ^sup 54^Ca: First Mass Measurements of ^sup 55–57^Ca by Michimasa, S

“…We perform the first direct mass measurements of neutron-rich calcium isotopes beyond neutron number 34 at the RIKEN Radioactive Isotope Beam Factory by using…”
Get full text

SHARAQ spectrometer for high-resolution studies for RI-induced reactions by Michimasa, S., Takaki, M., Sasamoto, Y., Dozono, M., Nishi, T., Kawabata, T., Ota, S., Baba, H., Baba, T., Fujii, T., Go, S., Kawase, S., Kikuchi, Y., Kisamori, K., Kobayashi, M., Kubota, Y., Lee, C.S., Matsubara, H., Miki, K., Miya, H., Noji, S., Tokieda, H., Tsumura, M., Yako, K., Yokoyama, R., Takeda, H., Yanagisawa, Y., Kubo, T., Inabe, N., Fukuda, N., Kameda, D., Suzuki, H., Shimizu, Y., Sato, H., Ichihara, T., Stolz, A., Zegers, R.G.T., Sakai, H., Uesaka, T., Shimoura, S.

“…•Report on recent achievement of the SHARAQ spectrometer.•Demonstration of two ion optics modes for high-resolution spectroscopy.•Discussion on measured…”
Get full text

New low-energy RIB separator CRIB for nuclear astrophysics by Kubono, S., Yanagisawa, Y., Teranishi, T., Kato, S., Kishida, Y., Michimasa, S., Ohshiro, Y., Shimoura, S., Ue, K., Watanabe, S., Yamazaki, N.

Get full text

BigRIPS as a high resolution spectrometer for pionic atoms by Nishi, T., Berg, G.P.A., Dozono, M., Fujioka, H., Fukuda, N., Furuno, T., Geissel, H., Hayano, R.S., Inabe, N., Itahashi, K., Itoh, S., Kameda, D., Kubo, T., Matsubara, H., Michimasa, S., Miki, K., Miya, H., Murakami, Y., Nakamura, M., Nakatsuka, N., Noji, S., Okochi, K., Ota, S., Suzuki, H., Suzuki, K., Takaki, M., Takeda, H., Tanaka, Y.K., Todoroki, K., Tsukada, K., Uesaka, T., Watanabe, Y.N., Weick, H., Yamada, H., Yoshida, K.

“…We are presently working on a new project ‘pionic atom factory project’ at RIBF. The project aims at precision spectroscopy of the energy spectrum of the…”
Get full text

Beta-gamma spectroscopy of the neutron-rich 150Ba by Yokoyama, R, Ideguchi, E, Simpson, G S, Tanaka, Mn, Nishimura, S, Doornenbal, P, Lorusso, G, Söderström, P-A, Sumikama, T, Wu, J, Xu, Z Y, Aoi, N, Baba, H, Bello Garrote, F L, Benzoni, G, Browne, F, Daido, R, Fang, Y, Fukuda, N, Gottardo, A, Gey, G, Go, S, Inabe, N, Isobe, T, Kameda, D, Kobayashi, K, Kobayashi, M, Kojouharov, I, Komatsubara, T, Kubo, T, Kurz, N, Kuti, I, Li, Z, Matsushita, M, Michimasa, S, Moon, C B, Nishibata, H, Nishizuka, I, Odahara, A, Patel, Z, Rice, S, Sahin, E, Sakurai, H, Schaffner, H, Sinclair, L, Suzuki, H, Takeda, H, Taprogge, J, Vajta, Zs, Watanabe, H, Yagi, A, Inakura, T

“…Abstract Excited states in the neutron-rich nucleus $^{150}$Ba have been observed via ${\rm \beta}$–${\rm \gamma}$ spectroscopy at the Radioactive Isotope Beam…”
Get full text