Lifetime measurements with the Doppler shift attenuation method using a thick homogeneous production target - Verification of the method

A. Ertoprak; B. Cederwall; U. Jakobsson; B. M. Nyakó; J. Nyberg; P. Davies; M. Doncel; G. De France; I. Kuti; D. R. Napoli; R. Wadsworth; S. S. Ghugre; R. Raut; B. Akkus; H. Al-Azri; A. Algora; G. De Angelis; A. Ata; T. Bäck; A. Boso; E. Clément; D. M. Debenham; Zs Dombrádi; S. Erturk; A. Gadea; F. Ghazi Moradi; A. Gottardo; T. Huyuk; E. Ideguchi; G. Jaworski; H. Li; C. Michelagnoli; V. Modamio; M. Palacz; C. M. Petrache; F. Recchia; M. Sandzelius; M. Siciliano; J. Timár; J. J. Valiente-Dobón; Z. G. Xiao

doi:10.5506/APhysPolB.48.325

Lifetime measurements with the Doppler shift attenuation method using a thick homogeneous production target - Verification of the method

A. Ertoprak, B. Cederwall, U. Jakobsson, B. M. Nyakó, J. Nyberg, P. Davies, M. Doncel, G. De France, I. Kuti, D. R. Napoli, R. Wadsworth, S. S. Ghugre, R. Raut, B. Akkus, H. Al-Azri, A. Algora, G. De Angelis, A. Ata, T. Bäck, A. BosoE. Clément, D. M. Debenham, Zs Dombrádi, S. Erturk, A. Gadea, F. Ghazi Moradi, A. Gottardo, T. Huyuk, E. Ideguchi, G. Jaworski, H. Li, C. Michelagnoli, V. Modamio, M. Palacz, C. M. Petrache, F. Recchia, M. Sandzelius, M. Siciliano, J. Timár, J. J. Valiente-Dobón, Z. G. Xiao

Physics

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

Abstract

Doppler Shift Attenuation Method (DSAM) analysis of excited-state lifetimes normally employs thin production targets mounted on a thick stopper foil ("backing") serving to slow down and stop the recoiling nuclei of interest in a well-defined manner. Use of a thick, homogeneous production target leads to a more complex analysis as it results in a substantial decrease in the energy of the incident projectile which traverses the target with an associated change in the production cross section of the residues as a function of penetration depth. Here, a DSAM lifetime analysis using a thick homogeneous target has been verified using the Doppler broadened lineshapes of γ rays following the decay of highly excited states in the semi-magic (N = 50) nucleus 94Ru. Lifetimes of excited states in the 94Ru nucleus have been obtained using a modified version of the LINESHAPE package from the Doppler broadened lineshapes resulting from the emission of theγ rays, while the residual nuclei were slowing down in the thick (6 mg/cm²) metallic ⁵⁸Ni target. The results have been validated by comparison with a previous measurement using a different (RDDS) technique.

Original language	English
Pages (from-to)	325-329
Number of pages	5
Journal	Acta Physica Polonica B
Volume	48
Issue number	3
DOIs	https://doi.org/10.5506/APhysPolB.48.325
Publication status	Published - 1 Mar 2017

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10.5506/APhysPolB.48.325

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Ertoprak, A., Cederwall, B., Jakobsson, U., Nyakó, B. M., Nyberg, J., Davies, P., Doncel, M., De France, G., Kuti, I., Napoli, D. R., Wadsworth, R., Ghugre, S. S., Raut, R., Akkus, B., Al-Azri, H., Algora, A., De Angelis, G., Ata, A., Bäck, T., ... Xiao, Z. G. (2017). Lifetime measurements with the Doppler shift attenuation method using a thick homogeneous production target - Verification of the method. Acta Physica Polonica B, 48(3), 325-329. https://doi.org/10.5506/APhysPolB.48.325

@article{b4ba7d1224594f03bc2e443e610958b4,

title = "Lifetime measurements with the Doppler shift attenuation method using a thick homogeneous production target - Verification of the method",

abstract = "Doppler Shift Attenuation Method (DSAM) analysis of excited-state lifetimes normally employs thin production targets mounted on a thick stopper foil ({"}backing{"}) serving to slow down and stop the recoiling nuclei of interest in a well-defined manner. Use of a thick, homogeneous production target leads to a more complex analysis as it results in a substantial decrease in the energy of the incident projectile which traverses the target with an associated change in the production cross section of the residues as a function of penetration depth. Here, a DSAM lifetime analysis using a thick homogeneous target has been verified using the Doppler broadened lineshapes of γ rays following the decay of highly excited states in the semi-magic (N = 50) nucleus 94Ru. Lifetimes of excited states in the 94Ru nucleus have been obtained using a modified version of the LINESHAPE package from the Doppler broadened lineshapes resulting from the emission of theγ rays, while the residual nuclei were slowing down in the thick (6 mg/cm2) metallic 58Ni target. The results have been validated by comparison with a previous measurement using a different (RDDS) technique.",

author = "A. Ertoprak and B. Cederwall and U. Jakobsson and Nyak{\'o}, {B. M.} and J. Nyberg and P. Davies and M. Doncel and {De France}, G. and I. Kuti and Napoli, {D. R.} and R. Wadsworth and Ghugre, {S. S.} and R. Raut and B. Akkus and H. Al-Azri and A. Algora and {De Angelis}, G. and A. Ata and T. B{\"a}ck and A. Boso and E. Cl{\'e}ment and Debenham, {D. M.} and Zs Dombr{\'a}di and S. Erturk and A. Gadea and {Ghazi Moradi}, F. and A. Gottardo and T. Huyuk and E. Ideguchi and G. Jaworski and H. Li and C. Michelagnoli and V. Modamio and M. Palacz and Petrache, {C. M.} and F. Recchia and M. Sandzelius and M. Siciliano and J. Tim{\'a}r and Valiente-Dob{\'o}n, {J. J.} and Xiao, {Z. G.}",

year = "2017",

month = mar,

day = "1",

doi = "10.5506/APhysPolB.48.325",

language = "English",

volume = "48",

pages = "325--329",

journal = "Acta Physica Polonica B",

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Ertoprak, A, Cederwall, B, Jakobsson, U, Nyakó, BM, Nyberg, J, Davies, P, Doncel, M, De France, G, Kuti, I, Napoli, DR, Wadsworth, R, Ghugre, SS, Raut, R, Akkus, B, Al-Azri, H, Algora, A, De Angelis, G, Ata, A, Bäck, T, Boso, A, Clément, E, Debenham, DM, Dombrádi, Z, Erturk, S, Gadea, A, Ghazi Moradi, F, Gottardo, A, Huyuk, T, Ideguchi, E, Jaworski, G, Li, H, Michelagnoli, C, Modamio, V, Palacz, M, Petrache, CM, Recchia, F, Sandzelius, M, Siciliano, M, Timár, J, Valiente-Dobón, JJ & Xiao, ZG 2017, 'Lifetime measurements with the Doppler shift attenuation method using a thick homogeneous production target - Verification of the method', Acta Physica Polonica B, vol. 48, no. 3, pp. 325-329. https://doi.org/10.5506/APhysPolB.48.325

TY - JOUR

T1 - Lifetime measurements with the Doppler shift attenuation method using a thick homogeneous production target - Verification of the method

AU - Ertoprak, A.

AU - Cederwall, B.

AU - Jakobsson, U.

AU - Nyakó, B. M.

AU - Nyberg, J.

AU - Davies, P.

AU - Doncel, M.

AU - De France, G.

AU - Kuti, I.

AU - Napoli, D. R.

AU - Wadsworth, R.

AU - Ghugre, S. S.

AU - Raut, R.

AU - Akkus, B.

AU - Al-Azri, H.

AU - Algora, A.

AU - De Angelis, G.

AU - Ata, A.

AU - Bäck, T.

AU - Boso, A.

AU - Clément, E.

AU - Debenham, D. M.

AU - Dombrádi, Zs

AU - Erturk, S.

AU - Gadea, A.

AU - Ghazi Moradi, F.

AU - Gottardo, A.

AU - Huyuk, T.

AU - Ideguchi, E.

AU - Jaworski, G.

AU - Li, H.

AU - Michelagnoli, C.

AU - Modamio, V.

AU - Palacz, M.

AU - Petrache, C. M.

AU - Recchia, F.

AU - Sandzelius, M.

AU - Siciliano, M.

AU - Timár, J.

AU - Valiente-Dobón, J. J.

AU - Xiao, Z. G.

PY - 2017/3/1

Y1 - 2017/3/1

N2 - Doppler Shift Attenuation Method (DSAM) analysis of excited-state lifetimes normally employs thin production targets mounted on a thick stopper foil ("backing") serving to slow down and stop the recoiling nuclei of interest in a well-defined manner. Use of a thick, homogeneous production target leads to a more complex analysis as it results in a substantial decrease in the energy of the incident projectile which traverses the target with an associated change in the production cross section of the residues as a function of penetration depth. Here, a DSAM lifetime analysis using a thick homogeneous target has been verified using the Doppler broadened lineshapes of γ rays following the decay of highly excited states in the semi-magic (N = 50) nucleus 94Ru. Lifetimes of excited states in the 94Ru nucleus have been obtained using a modified version of the LINESHAPE package from the Doppler broadened lineshapes resulting from the emission of theγ rays, while the residual nuclei were slowing down in the thick (6 mg/cm2) metallic 58Ni target. The results have been validated by comparison with a previous measurement using a different (RDDS) technique.

AB - Doppler Shift Attenuation Method (DSAM) analysis of excited-state lifetimes normally employs thin production targets mounted on a thick stopper foil ("backing") serving to slow down and stop the recoiling nuclei of interest in a well-defined manner. Use of a thick, homogeneous production target leads to a more complex analysis as it results in a substantial decrease in the energy of the incident projectile which traverses the target with an associated change in the production cross section of the residues as a function of penetration depth. Here, a DSAM lifetime analysis using a thick homogeneous target has been verified using the Doppler broadened lineshapes of γ rays following the decay of highly excited states in the semi-magic (N = 50) nucleus 94Ru. Lifetimes of excited states in the 94Ru nucleus have been obtained using a modified version of the LINESHAPE package from the Doppler broadened lineshapes resulting from the emission of theγ rays, while the residual nuclei were slowing down in the thick (6 mg/cm2) metallic 58Ni target. The results have been validated by comparison with a previous measurement using a different (RDDS) technique.

UR - http://www.scopus.com/inward/record.url?scp=85017146840&partnerID=8YFLogxK

U2 - 10.5506/APhysPolB.48.325

DO - 10.5506/APhysPolB.48.325

M3 - Article

AN - SCOPUS:85017146840

SN - 0587-4254

VL - 48

SP - 325

EP - 329

JO - Acta Physica Polonica B

JF - Acta Physica Polonica B

IS - 3

ER -

Lifetime measurements with the Doppler shift attenuation method using a thick homogeneous production target - Verification of the method

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Lifetime measurements with the Doppler shift attenuation method using a thick homogeneous production target - Verification of the method

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