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

School of Computing, Engineering and Physical Sciences

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

3 Citations (Scopus)

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
Article number	01013
Number of pages	5
Journal	EPJ Web Conf.
Volume	146
DOIs	https://doi.org/10.1051/epjconf/201714601013
Publication status	E-pub ahead of print - 13 Sept 2017

Access to Document

10.1051/epjconf/201714601013Licence: CC BY

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. EPJ Web Conf., 146, Article 01013. Advance online publication. https://doi.org/10.1051/epjconf/201714601013

@article{0253e48ef5fa4b5aa06540f0ed0076bd,

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

year = "2017",

month = sep,

day = "13",

doi = "10.1051/epjconf/201714601013",

language = "English",

volume = "146",

journal = "EPJ Web Conf.",

publisher = "EDP Sciences",

}

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', EPJ Web Conf., vol. 146, 01013. https://doi.org/10.1051/epjconf/201714601013

TY - JOUR

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.

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.

U2 - 10.1051/epjconf/201714601013

DO - 10.1051/epjconf/201714601013

M3 - Article

VL - 146

JO - EPJ Web Conf.

JF - EPJ Web Conf.

M1 - 01013

ER -

Capture cross sections on unstable nuclei

Abstract

Access to Document

Fingerprint

Cite this