Capture cross sections on unstable nuclei

A. P. Tonchev; J. E. Escher; N. Scielzo; P. Bedrossian; R. S. Ilieva; P. Humby; N. Cooper; P. M. Goddard; V. Werner; W. Tornow; G. Rusev; J. H. Kelley; N. Pietralla; M. Scheck; D. Savran; B. Löher; S. W. Yates; B. P. Crider; E. E. Peters; N. Tsoneva; S. Goriely

doi:10.1051/epjconf/201714601013

Capture cross sections on unstable nuclei

A. P. Tonchev, J. E. Escher, N. Scielzo, P. Bedrossian, R. S. Ilieva, P. Humby, N. Cooper, P. M. Goddard, V. Werner, W. Tornow, G. Rusev, J. H. Kelley, N. Pietralla, M. Scheck, D. Savran, B. Löher, S. W. Yates, B. P. Crider, E. E. Peters, N. TsonevaS. Goriely

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Scopus citations

Abstract

Accurate neutron-capture cross sections on unstable nuclei near the line of beta stability are crucial for understanding the s-process nucleosynthesis. However, neutron-capture cross sections for short-lived radionuclides are difficult to measure due to the fact that the measurements require both highly radioactive samples and intense neutron sources. Essential ingredients for describing the γ decays following neutron capture are the γ-ray strength function and level densities. We will compare different indirect approaches for obtaining the most relevant observables that can constrain Hauser-Feshbach statistical-model calculations of capture cross sections. Specifically, we will consider photon scattering using monoenergetic and 100% linearly polarized photon beams. Challenges that exist on the path to obtaining neutron-capture cross sections for reactions on isotopes near and far from stability will be discussed.

Original language	English
Title of host publication	ND 2016
Subtitle of host publication	International Conference on Nuclear Data for Science and Technology
Editors	Peter Siegler, Wim Mondelaers, Arjan Plompen, Franz-Josef Hambsch, Peter Schillebeeckx, Stefan Kopecky, Jan Heyse, Stephan Oberstedt
ISBN (Electronic)	9782759890200
DOIs	https://doi.org/10.1051/epjconf/201714601013
State	Published - Sep 13 2017
Event	2016 International Conference on Nuclear Data for Science and Technology, ND 2016 - Bruges, Belgium Duration: Sep 11 2016 → Sep 16 2016

Publication series

Name	EPJ Web of Conferences
Volume	146
ISSN (Print)	2101-6275
ISSN (Electronic)	2100-014X

Conference

Conference	2016 International Conference on Nuclear Data for Science and Technology, ND 2016
Country/Territory	Belgium
City	Bruges
Period	9/11/16 → 9/16/16

Bibliographical note

Funding Information:
This work was performed under the auspices of the U.S. Department of Energy (DOE) by Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344, with partial support through LLNL’s LDRD program (15-ERD-069 and 16-ERD-022).

Publisher Copyright:
© The Authors, published by EDP Sciences, 2017.

ASJC Scopus subject areas

Physics and Astronomy (all)

Access to Document

10.1051/epjconf/201714601013

Cite this

Tonchev, A. P., Escher, J. E., Scielzo, N., Bedrossian, P., Ilieva, R. S., Humby, P., Cooper, N., Goddard, P. M., Werner, V., Tornow, W., Rusev, G., Kelley, J. H., Pietralla, N., Scheck, M., Savran, D., Löher, B., Yates, S. W., Crider, B. P., Peters, E. E., ... Goriely, S. (2017). Capture cross sections on unstable nuclei. In P. Siegler, W. Mondelaers, A. Plompen, F-J. Hambsch, P. Schillebeeckx, S. Kopecky, J. Heyse, & S. Oberstedt (Eds.), ND 2016: International Conference on Nuclear Data for Science and Technology [01013] (EPJ Web of Conferences; Vol. 146). https://doi.org/10.1051/epjconf/201714601013

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title = "Capture cross sections on unstable nuclei",

abstract = "Accurate neutron-capture cross sections on unstable nuclei near the line of beta stability are crucial for understanding the s-process nucleosynthesis. However, neutron-capture cross sections for short-lived radionuclides are difficult to measure due to the fact that the measurements require both highly radioactive samples and intense neutron sources. Essential ingredients for describing the γ decays following neutron capture are the γ-ray strength function and level densities. We will compare different indirect approaches for obtaining the most relevant observables that can constrain Hauser-Feshbach statistical-model calculations of capture cross sections. Specifically, we will consider photon scattering using monoenergetic and 100% linearly polarized photon beams. Challenges that exist on the path to obtaining neutron-capture cross sections for reactions on isotopes near and far from stability will be discussed.",

author = "Tonchev, {A. P.} and Escher, {J. E.} and N. Scielzo and P. Bedrossian and Ilieva, {R. S.} and P. Humby and N. Cooper and Goddard, {P. M.} and V. Werner and W. Tornow and G. Rusev and Kelley, {J. H.} and N. Pietralla and M. Scheck and D. Savran and B. L{\"o}her and Yates, {S. W.} and Crider, {B. P.} and Peters, {E. E.} and N. Tsoneva and S. Goriely",

note = "Funding Information: This work was performed under the auspices of the U.S. Department of Energy (DOE) by Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344, with partial support through LLNL{\textquoteright}s LDRD program (15-ERD-069 and 16-ERD-022). Publisher Copyright: {\textcopyright} The Authors, published by EDP Sciences, 2017.; null ; Conference date: 11-09-2016 Through 16-09-2016",

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doi = "10.1051/epjconf/201714601013",

language = "English",

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Tonchev, AP, Escher, JE, Scielzo, N, Bedrossian, P, Ilieva, RS, Humby, P, Cooper, N, Goddard, PM, Werner, V, Tornow, W, Rusev, G, Kelley, JH, Pietralla, N, Scheck, M, Savran, D, Löher, B, Yates, SW, Crider, BP, Peters, EE, Tsoneva, N & Goriely, S 2017, Capture cross sections on unstable nuclei. in P Siegler, W Mondelaers, A Plompen, F-J Hambsch, P Schillebeeckx, S Kopecky, J Heyse & S Oberstedt (eds), ND 2016: International Conference on Nuclear Data for Science and Technology., 01013, EPJ Web of Conferences, vol. 146, 2016 International Conference on Nuclear Data for Science and Technology, ND 2016, Bruges, Belgium, 9/11/16. https://doi.org/10.1051/epjconf/201714601013

Capture cross sections on unstable nuclei. / Tonchev, A. P.; Escher, J. E.; Scielzo, N. et al.

ND 2016: International Conference on Nuclear Data for Science and Technology. ed. / Peter Siegler; Wim Mondelaers; Arjan Plompen; Franz-Josef Hambsch; Peter Schillebeeckx; Stefan Kopecky; Jan Heyse; Stephan Oberstedt. 2017. 01013 (EPJ Web of Conferences; Vol. 146).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Capture cross sections on unstable nuclei

AU - Tonchev, A. P.

AU - Escher, J. E.

AU - Scielzo, N.

AU - Bedrossian, P.

AU - Ilieva, R. S.

AU - Humby, P.

AU - Cooper, N.

AU - Goddard, P. M.

AU - Werner, V.

AU - Tornow, W.

AU - Rusev, G.

AU - Kelley, J. H.

AU - Pietralla, N.

AU - Scheck, M.

AU - Savran, D.

AU - Löher, B.

AU - Yates, S. W.

AU - Crider, B. P.

AU - Peters, E. E.

AU - Tsoneva, N.

AU - Goriely, S.

N1 - Funding Information: This work was performed under the auspices of the U.S. Department of Energy (DOE) by Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344, with partial support through LLNL’s LDRD program (15-ERD-069 and 16-ERD-022). Publisher Copyright: © The Authors, published by EDP Sciences, 2017.

PY - 2017/9/13

Y1 - 2017/9/13

N2 - Accurate neutron-capture cross sections on unstable nuclei near the line of beta stability are crucial for understanding the s-process nucleosynthesis. However, neutron-capture cross sections for short-lived radionuclides are difficult to measure due to the fact that the measurements require both highly radioactive samples and intense neutron sources. Essential ingredients for describing the γ decays following neutron capture are the γ-ray strength function and level densities. We will compare different indirect approaches for obtaining the most relevant observables that can constrain Hauser-Feshbach statistical-model calculations of capture cross sections. Specifically, we will consider photon scattering using monoenergetic and 100% linearly polarized photon beams. Challenges that exist on the path to obtaining neutron-capture cross sections for reactions on isotopes near and far from stability will be discussed.

AB - Accurate neutron-capture cross sections on unstable nuclei near the line of beta stability are crucial for understanding the s-process nucleosynthesis. However, neutron-capture cross sections for short-lived radionuclides are difficult to measure due to the fact that the measurements require both highly radioactive samples and intense neutron sources. Essential ingredients for describing the γ decays following neutron capture are the γ-ray strength function and level densities. We will compare different indirect approaches for obtaining the most relevant observables that can constrain Hauser-Feshbach statistical-model calculations of capture cross sections. Specifically, we will consider photon scattering using monoenergetic and 100% linearly polarized photon beams. Challenges that exist on the path to obtaining neutron-capture cross sections for reactions on isotopes near and far from stability will be discussed.

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U2 - 10.1051/epjconf/201714601013

DO - 10.1051/epjconf/201714601013

M3 - Conference contribution

AN - SCOPUS:85030467584

T3 - EPJ Web of Conferences

BT - ND 2016

A2 - Siegler, Peter

A2 - Mondelaers, Wim

A2 - Plompen, Arjan

A2 - Hambsch, Franz-Josef

A2 - Schillebeeckx, Peter

A2 - Kopecky, Stefan

A2 - Heyse, Jan

A2 - Oberstedt, Stephan

Y2 - 11 September 2016 through 16 September 2016

ER -

Tonchev AP, Escher JE, Scielzo N, Bedrossian P, Ilieva RS, Humby P et al. Capture cross sections on unstable nuclei. In Siegler P, Mondelaers W, Plompen A, Hambsch F-J, Schillebeeckx P, Kopecky S, Heyse J, Oberstedt S, editors, ND 2016: International Conference on Nuclear Data for Science and Technology. 2017. 01013. (EPJ Web of Conferences). doi: 10.1051/epjconf/201714601013

Capture cross sections on unstable nuclei

Abstract

Publication series

Conference

Bibliographical note

ASJC Scopus subject areas

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