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NSR database version of May 1, 2024.

Search: Author = F.Ponce

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2020FR07      Phys.Rev.Lett. 125, 032701 (2020)

S.Fretwell, K.G.Leach, C.Bray, G.B.Kim, J.Dilling, A.Lennarz, X.Mougeot, F.Ponce, C.Ruiz, J.Stackhouse, S.Friedrich

Direct Measurement of the ⁷Be L/K Capture Ratio in Ta-Based Superconducting Tunnel Junctions

RADIOACTIVITY ⁷Be(EC); measured decay products, phonons; deduced recoil spectra, L/K ratio.

doi: 10.1103/PhysRevLett.125.032701
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2018PO07      Phys.Rev. C 97, 054310 (2018)

F.Ponce, E.Swanberg, J.Burke, R.Henderson, S.Friedrich

Accurate measurement of the first excited nuclear state in ²³⁵U

RADIOACTIVITY ^235mU(IT)[from ²³⁹Pu(α)]; measured Eγ, Iγ, and precise energy of the first excited state at 76 eV in ²³⁵U using superconducting tunnel junction detector with pulsed UV laser calibration. Comparison with previous experimental values. ^229mTh(IT); discussed adaptation of experimental approach towards measurement of first excited state at 7.8 eV in ²²⁹Th.

doi: 10.1103/PhysRevC.97.054310
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Data from this article have been entered in the XUNDL database. For more information, click here.