NSR Query Results

Output year order : Descending
Format : Normal

NSR database version of April 27, 2024.

Search: Author = S.Usuda

Found 9 matches.

Back to query form

1996MA72      Radiochim.Acta 72, 39 (1996)

M.Magara, N.Shinohara, Y.Hatsukawa, K.Tsukada, H.Iimura, S.Usuda, S.-I.Ichikawa, T.Suzuki, Y.Nagame, Y.Kobayashi, M.Oshima, T.Horiguchi

Decay Properties of ²⁴⁵Cf

RADIOACTIVITY ^244,246Cf(α); ²⁴⁵Cf(α), (EC), (β⁺); ^240,242Cm(α) [from ²³⁸U(¹²C, X), E=81, 87 MeV]; measured Eα, Iα, αγ-, γγ-coin, E X-ray, I X-ray. ²⁴⁵Cf deduced α-decay T_1/2, branching ratio. ²⁴¹Cm deduced levels, J, π, Nilsson assignments.

NUCLEAR REACTIONS ²³⁸U(¹²C, X), (¹²C, 5n), E=81, 87 MeV; measured Eα, Iα, αγ-, γγ-coin, E X-ray, I X-ray. ²⁴⁵Cf deduced α-decay T_1/2, branching ratio. ²⁴¹Cm deduced levels, J, π, Nilsson assignments.

1995US03      Nucl.Instrum.Methods Phys.Res. A356, 334 (1995)

S.Usuda

Simultaneous Counting of α-, β(γ)-Rays and Thermal Neutrons with Phoswich Detectors Consisting of ZnS(Ag), ⁶Li-Glass and/or NE102A Scintillators

RADIOACTIVITY ²⁴⁴Cm(α); ¹³⁷Cs(β^-); measured α-, β, γ-spectra, rise time distributions. ²⁵²Cf(SF); measured thermal neutron spectra, rise time distributions. Simultaneous counting, ZnS(Ag), ⁶Li-glass and/or NE102A scintillators based phoswich detectors.

doi: 10.1016/0168-9002(94)01212-1
Citations: PlumX Metrics

1994US01      Nucl.Instrum.Methods Phys.Res. A340, 540 (1994)

S.Usuda, H.Abe, A.Mihara

Phoswich Detectors Combining Doubly or Triply ZnS(Ag), NE102A, BGO and/or NaI(Tl) Scintillators for Simultaneous Counting of α, β and γ Rays

RADIOACTIVITY ²⁴¹Am, ²⁴⁴Cm(α); ¹³⁷Cs(β^-); ⁶⁰Co(β^-); ⁹⁰Sr(β^-); measured α-, β-, γ-ray rise time distributions; deduced detector characteristics. Phoswich detectors with different combinations, simultaneous α, β, γ-rays counting, mixed sources.

doi: 10.1016/0168-9002(94)90135-X
Citations: PlumX Metrics

1992US02      Nucl.Instrum.Methods Phys.Res. A321, 242 (1992)

S.Usuda, H.Abe

Flow Monitor for Actinide Solutions by Simultaneous α and β(γ) Counting Using a CsI(Tl) Scintillator

RADIOACTIVITY ²⁴⁴Cm(α); measured α-spectra. ¹³⁷Cs(β^-); measured Eβ, Iβ, Eγ, Iγ. Simultaneous counting, CsI(Tl) scintillator, flow monitor for actinide solutions.

doi: 10.1016/0168-9002(92)90395-K
Citations: PlumX Metrics

1992US03      Nucl.Instrum.Methods Phys.Res. A321, 247 (1992)

S.Usuda, A.Mihara, H.Abe

Rise Time Spectra of α and β(γ) Rays from Solid and Solution Sources with Several Solid Scintillators

RADIOACTIVITY ²⁴¹Am, ²⁴⁴Cm(α); measured α-spectra. ¹³³Ba(EC); ¹³⁷Cs(β^-); ¹⁵²Eu(β^-), (β⁺), (EC); measured β-, γ-spectra. Several solid scintillators, solid, solution sources.

doi: 10.1016/0168-9002(92)90396-L
Citations: PlumX Metrics

1990TS05      Radiochim.Acta 51, 77 (1990)

K.Tsukada, T.Ohtsuki, K.Sueki, Y.Hatsukawa, H.Yoshikawa, K.Endo, H.Nakahara, N.Shinohara, S.Ichikawa, S.Usuda, M.Hoshi

Development of a Computer-Controlled On-Line Rapid Ion-Exchange Separation System

RADIOACTIVITY ²⁵²Cf(SF); measured fission fragment γ-spectra; deduced Sm isotope fractions. Automatic rapid ion-exchange separation system.

1989US04      Int.J.Radiat.Appl.Instr.D (Nucl.Tracks Radiat.Meas.) 16, 247 (1989)

S.Usuda, H.Umezawa

Measurement of the Spontaneous Fission Half-Life of ²⁴²Cm by Absolute Fission Track Counting

RADIOACTIVITY ²⁴²Cm(SF), (α); measured partial T_1/2 for fission.

doi: 10.1016/1359-0189(89)90024-1
Citations: PlumX Metrics

1986SH26      Phys.Rev. C34, 909 (1986)

N.Shinohara, S.Usuda, S.Ichikawa, T.Suzuki, M.Magara, H.Okashita, H.Yoshikawa, T.Horiguchi, Y.Iwata, S.Shibata, I.Fujiwara

Actinides Produced by ¹²C + ²⁴²Pu and ¹⁶O + ²³⁸U Reactions

NUCLEAR REACTIONS ²³⁸U(¹⁶O, X)²⁴⁴Cf/²⁴⁵Cf/²⁴⁶Cf/²⁵⁰Fm, E=85-125 MeV; ²⁴²Pu(¹²C, X)²⁴⁴Cf/²⁴⁵Cf/²⁴⁶Cf/²⁵⁰Fm, E=65-95 MeV; ²³⁸U(¹⁶O, 4n)²⁵⁰Fm, E=92 MeV; ²⁴²Pu(¹²C, 4n)²⁵⁰Fm, E=72 MeV;²³⁸U(¹⁶O, 4nα)²⁴⁶Cf, E=97 MeV; ²³⁸U(¹⁶O, 5nα)²⁴⁵Cf, E=105 MeV;²⁴²Pu(¹²C, 4nα)²⁴⁶Cf, E=83 MeV;²⁴²Pu(¹²C, 5nα)²⁴⁵Cf, E=90 MeV;²³⁸U(¹⁶O, X)²⁴²Cm, E=85-125 MeV;²⁴²Pu(¹²C, X)²⁴²Am/²⁴²Cm/²⁴³Cm/²⁴⁴Cm, E = 65-95 MeV; measured residual production σ(E). ²⁵⁴Fm; deduced Coulomb barrier role, α-cluster transfer mechanism. Radiochemical methods. Evaporation code analysis. Comparison with available data.

NUCLEAR REACTIONS ²³⁸U(¹⁶O, F)²⁴⁴Cf/²⁴⁵Cf/²⁴⁶Cf/²⁵⁰Fm/²⁴²Cm, E=85-145 MeV; ²⁴²Pu(¹²C, F)²⁴⁴Cf/²⁴⁵Cf/²⁴⁶Cf/²⁵⁰Fm/²⁴²Cm, E=60-120 MeV; calculated fission σ(E). ALICE nuclear mode code, comparison with experimental data.

doi: 10.1103/PhysRevC.34.909
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0357.

1981US03      J.Inorg.Nucl.Chem. 43, 3081 (1981)

S.Usuda, H.Umezawa

Half-Life of ²⁴²Cm

RADIOACTIVITY ²⁴²Cm; measured α-decay T_1/2. Ion-exchange procedures, ^242mAm source.

doi: 10.1016/0022-1902(81)80065-6
Citations: PlumX Metrics