Spin dependence in the -wave resonance of +

Okudaira, Takuya*; Nakabe, Rintaro*; Auton, C. J.*; Endo, Shunsuke; Fujioka, Hiroyuki*; Gudkov, V.*; Ide, Ikuo*; Ino, Takashi*; Ishikado, Motoyuki*; Kambara, Wataru*; et al.

Physical Review C, 109(4), p.044606_1 - 044606_9, 2024/04

https://doi.org/10.1103/PhysRevC.109.044606

A Measurement of the final-state dependence of the parity violation in a compound nucleus with La

Goto, Yu*; Ito, Yuki*; Ide, Ikuo*; Ino, Takashi*; Endo, Shunsuke; Oku, Takayuki; Okudaira, Takuya*; Okuizumi, Mao*; Kameda, Kento*; Kawamura, Shiori*; et al.

no journal, , 

no abstracts in English

None

Nakabe, Rintaro; Kumada, Takayuki

no journal, , 

no abstracts in English

Development of a proton polarized apparatus

Nakabe, Rintaro; Kumada, Takayuki

no journal, , 

None

Sugita, Tsuyoshi; Ueda, Yuki; Nakabe, Rintaro; Mori, Masanobu*; Nankawa, Takuya; Sekine, Yurina

no journal, , 

no abstracts in English

Polarization analysis method for removing incoherent scattering component at BL15 TAIKAN and SANS-J

Hiroi, Kosuke; Kumada, Takayuki; Nakabe, Rintaro; Motokawa, Ryuhei; Oku, Takayuki

no journal, , 

Observation of the nano-size ice crystals with spin-contrast-variation SANS method in a glassy sugar aqueous solution for the development of the cryopreservation technique

Nakabe, Rintaro; Kumada, Takayuki; Motokawa, Ryuhei

no journal, , 

For cryopreservation of cells, it is important to prevent physical damage to cellular tissue caused by ice crystal growth. To achieve it, the aqueous solution with sugar added as a cryoprotectant is vitrificated by rapid freezing to inhibit nucleation and growth of ice crystals. Generally, ice crystals are considered to cause no damage to cell organelles in case their size remains below a micrometer. Therefore, if we clarify the size and shape of ice crystals depending on the type and concentration of sugar, it can offer the establishment of a new type of research method of cryopreservation with high cell viability. In the conventional SANS method, the difference in SLD between sugar-segregated amorphous and ice crystals is so small that it is difficult to distinguish the ice crystals from defect structures in the amorphous. On the other hand, we used a SCV-SANS method, which is based on the principle that the coherent scattering length of polarized hydrogen nuclei and polarized neutrons depends on the product of their polarizations, to observe ice crystals smaller than a few micrometers. We conducted SCV-SANS measurement at the SANS beamline (TAIKAN) in the J-PARC and determined that the ice crystals in the vitrificated aqueous glucose solution form a flat shape with a height of a few nanometers. In this talk, we will report on the detailed experimental technique.