Internal bremsstrahlung of 41Ca

P. Hornshøj; T. Batsch; Z. Janas; M. Pfuetzner; A. Plochocki; K. Rykaczewski

doi:10.1016/0375-9474(87)90224-7

Internal bremsstrahlung of ⁴¹Ca

P. Hornshøj
, T. Batsch
, Z. Janas
, M. Pfuetzner
, A. Plochocki
, K. Rykaczewski

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

The internal bremsstrahlung (IB) accompanying the first-forbidden unique electron-capture decay of ⁴¹Ca has been studied in detail. The IB spectrum measured in coincidence with potassium KX-rays has yielded the probability ratio of the 1s component of IB to the nonradiative K-capture (2.5 ± 0.3) × 10^-4. Singles measurements have been performed to investigate the shape of the IB spectrum, and the results have been compared with the theory of Glauber and Martin for allowed decays and with that of Zon and Rapoport for forbidden transitions. The intensity of the 1s component has been found to be nearly an order of magnitude higher than the theoretical predictions. The shape of the total 1B spectrum closely resembles that of "allowed" character and is thus considerably different from the shape derived from the Zon and Rapoport theory.

Original language	English
Pages (from-to)	139-150
Number of pages	12
Journal	Nuclear Physics A
Volume	472
Issue number	1
DOIs	https://doi.org/10.1016/0375-9474(87)90224-7
State	Published - Sep 21 1987
Externally published	Yes

Keywords

Radioactivity

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10.1016/0375-9474(87)90224-7

Cite this

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title = "Internal bremsstrahlung of 41Ca",

abstract = "The internal bremsstrahlung (IB) accompanying the first-forbidden unique electron-capture decay of 41Ca has been studied in detail. The IB spectrum measured in coincidence with potassium KX-rays has yielded the probability ratio of the 1s component of IB to the nonradiative K-capture (2.5 ± 0.3) × 10-4. Singles measurements have been performed to investigate the shape of the IB spectrum, and the results have been compared with the theory of Glauber and Martin for allowed decays and with that of Zon and Rapoport for forbidden transitions. The intensity of the 1s component has been found to be nearly an order of magnitude higher than the theoretical predictions. The shape of the total 1B spectrum closely resembles that of {"}allowed{"} character and is thus considerably different from the shape derived from the Zon and Rapoport theory.",

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author = "P. Hornsh{\o}j and T. Batsch and Z. Janas and M. Pfuetzner and A. Plochocki and K. Rykaczewski",

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doi = "10.1016/0375-9474(87)90224-7",

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T1 - Internal bremsstrahlung of 41Ca

AU - Hornshøj, P.

AU - Batsch, T.

AU - Janas, Z.

AU - Pfuetzner, M.

AU - Plochocki, A.

AU - Rykaczewski, K.

PY - 1987/9/21

Y1 - 1987/9/21

N2 - The internal bremsstrahlung (IB) accompanying the first-forbidden unique electron-capture decay of 41Ca has been studied in detail. The IB spectrum measured in coincidence with potassium KX-rays has yielded the probability ratio of the 1s component of IB to the nonradiative K-capture (2.5 ± 0.3) × 10-4. Singles measurements have been performed to investigate the shape of the IB spectrum, and the results have been compared with the theory of Glauber and Martin for allowed decays and with that of Zon and Rapoport for forbidden transitions. The intensity of the 1s component has been found to be nearly an order of magnitude higher than the theoretical predictions. The shape of the total 1B spectrum closely resembles that of "allowed" character and is thus considerably different from the shape derived from the Zon and Rapoport theory.

AB - The internal bremsstrahlung (IB) accompanying the first-forbidden unique electron-capture decay of 41Ca has been studied in detail. The IB spectrum measured in coincidence with potassium KX-rays has yielded the probability ratio of the 1s component of IB to the nonradiative K-capture (2.5 ± 0.3) × 10-4. Singles measurements have been performed to investigate the shape of the IB spectrum, and the results have been compared with the theory of Glauber and Martin for allowed decays and with that of Zon and Rapoport for forbidden transitions. The intensity of the 1s component has been found to be nearly an order of magnitude higher than the theoretical predictions. The shape of the total 1B spectrum closely resembles that of "allowed" character and is thus considerably different from the shape derived from the Zon and Rapoport theory.

KW - Radioactivity

UR - https://www.scopus.com/pages/publications/0001164764

U2 - 10.1016/0375-9474(87)90224-7

DO - 10.1016/0375-9474(87)90224-7

M3 - Article

AN - SCOPUS:0001164764

SN - 0375-9474

VL - 472

SP - 139

EP - 150

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 1

ER -

Internal bremsstrahlung of ⁴¹Ca

Abstract

Keywords

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