How different is the core of F from O ?

Tang, T. L.*; Uesaka, Tomohiro*; Kawase, Shoichiro; Beaumel, D.*; Dozono, Masanori*; Fujii, Toshihiko*; Fukuda, Naoki*; Fukunaga, Taku*; Galindo-Uribarri, A.*; Hwang, S. H.*; et al.

Physical Review Letters, 124(21), p.212502_1 - 212502_6, 2020/05

https://doi.org/10.1103/PhysRevLett.124.212502

The structure of a neutron-rich F nucleus is investigated by a quasifree () knockout reaction. The sum of spectroscopic factors of orbital is found to be 1.0 0.3. The result shows that the O core of F nucleus significantly differs from a free O nucleus, and the core consists of 35% O, and 65% excited O. The result shows that the O core of F nucleus significantly differs from a free O nucleus. The result may infer that the addition of the proton considerably changes the neutron structure in F from that in O, which could be a possible mechanism responsible for the oxygen dripline anomaly.

Evaluation of Hydraulic Conductivities of Bentonite and Rock under Hyper Alkaline and Nitrate Conditions (II)

Iriya, Keishiro*; Fujii, Kensuke*; Kubo, Hiroshi*

JNC TJ8400 2003-067, 285 Pages, 2003/02

JNC-TJ8400-2003-067.pdf:18.35MB

Hydraulic conductivities of bentonite and rock under hyper alkaline and nitrate conditions were investigated.

Applicability of Low Alkalinity Cement for Construction and Alteration of Bentonite in the Cement (II)

Iriya, Keishiro*; Fujii, Kensuke*; Tajima, Takatoshi*; Takeda, Nobufumi*; Kubo, Hiroshi*

JNC TJ8400 2003-062, 110 Pages, 2003/02

JNC-TJ8400-2003-062.pdf:5.12MB

In this study, applicability of low alkalinity cement and alteration of bentonite in the cement ere investigated.