Commissioning of the BRIKEN detector for the measurement of very exotic β-delayed neutron emitters

the BRIKEN collaboration

doi:10.1016/j.nima.2019.02.004

Commissioning of the BRIKEN detector for the measurement of very exotic β-delayed neutron emitters

the BRIKEN collaboration

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

24 Scopus citations

Abstract

A new detection system has been installed at the RIKEN Nishina Center (Japan) to investigate decay properties of very neutron-rich nuclei. The setup consists of three main parts: a moderated neutron counter, a detection system sensitive to the implantation and decay of radioactive ions, and γ-ray detectors. We describe here the setup, the commissioning experiment and some selected results demonstrating its performance for the measurement of half-lives and β-delayed neutron emission probabilities. The methodology followed in the analysis of the data is described in detail. Particular emphasis is placed on the correction of the accidental neutron background.

Original language	English
Pages (from-to)	133-147
Number of pages	15
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	925
DOIs	https://doi.org/10.1016/j.nima.2019.02.004
State	Published - May 1 2019

Funding

This work has been supported by the Spanish Ministerio de Economía y Competitividad under grants FPA2011-24553 , FPA2011-28770-C03-03 , FPA2014-52823-C2-1/2 , IJCI-2014-19172 and SEV-2014-0398 , and by FP7/EURATOM Contract No. 605203 . This work has been supported by the Office of Nuclear Physics, U. S. Department of Energy under the contract DE-AC05-00OR22725 (ORNL). This research was sponsored in part by the Office of Nuclear Physics, U.S. Department of Energy under Award No. DE-FG02-96ER40983 and by the National Nuclear Security Administration, United States under the Stewardship Science Academic Alliances program through DOE Award No. DE-NA0002132 . This work was supported by JSPS, Japan KAKENHI (Grants Numbers 14F04808 , 17H06090 , 25247045 , 19340074 ). Supported by the UK Science and Technology Facilities Council . This work has been supported by the Natural Sciences and Engineering Research Council of Canada (NSERC) via the Discovery Grants SAPIN-2014-00028 and RGPAS 462257-2014 . This work has been supported by the National Science Foundation, United States grant PHY 1714153 . Supported by the National Science Foundation, United States under Grant Number PHY-1430152 (JINA Center for the Evolution of the Elements), Grant Number PHY-1565546 (NSCL). Supported by the UK Science and Technology Facilities Council grant No. ST/N00244X/1 . This work was supported by NKFIH, Hungary ( K120666 ). Supported by South Korea NRF grants 2016K1A3A7A09005575 and 2015H1A2A1030275 . Work partially done within IAEA-CRP for Beta Delayed Neutron Data. G.G. Kiss acknowledges support form the Janos Bolyai research fellowship. This experiment was performed at RI Beam Factory operated by RIKEN Nishina Center and CNS, University of Tokyo. This work has been supported by the Spanish Ministerio de Economía y Competitividad under grants FPA2011-24553, FPA2011-28770-C03-03, FPA2014-52823-C2-1/2, IJCI-2014-19172 and SEV-2014-0398, and by FP7/EURATOM Contract No. 605203. This work has been supported by the Office of Nuclear Physics, U. S. Department of Energy under the contract DE-AC05-00OR22725 (ORNL). This research was sponsored in part by the Office of Nuclear Physics, U.S. Department of Energy under Award No. DE-FG02-96ER40983 and by the National Nuclear Security Administration, United States under the Stewardship Science Academic Alliances program through DOE Award No. DE-NA0002132. This work was supported by JSPS, Japan KAKENHI (Grants Numbers 14F04808, 17H06090, 25247045, 19340074). Supported by the UK Science and Technology Facilities Council. This work has been supported by the Natural Sciences and Engineering Research Council of Canada (NSERC) via the Discovery Grants SAPIN-2014-00028 and RGPAS 462257-2014. This work has been supported by the National Science Foundation, United States grant PHY 1714153. Supported by the National Science Foundation, United States under Grant Number PHY-1430152 (JINA Center for the Evolution of the Elements), Grant Number PHY-1565546 (NSCL). Supported by the UK Science and Technology Facilities Council grant No. ST/N00244X/1. This work was supported by NKFIH, Hungary (K120666). Supported by South Korea NRF grants 2016K1A3A7A09005575 and 2015H1A2A1030275. Work partially done within IAEA-CRP for Beta Delayed Neutron Data. G.G. Kiss acknowledges support form the Janos Bolyai research fellowship. This experiment was performed at RI Beam Factory operated by RIKEN Nishina Center and CNS, University of Tokyo.

Funders	Funder number
Not added	ST/P004598/1, ST/P004008/1, ST/L005670/1, 1853133
NSCL
South Korea NRF	2015H1A2A1030275, 2016K1A3A7A09005575
National Science Foundation	1714153, PHY 1714153, PHY-1430152, 605203, PHY-1565546, 1430152
U.S. Department of Energy	DE-AC05-00OR22725, DE-FG02-96ER40983
National Nuclear Security Administration	DE-NA0002132
Nuclear Physics
Oak Ridge National Laboratory
H2020 Euratom
Seventh Framework Programme
FP7 Fusion Energy Research
Natural Sciences and Engineering Research Council of Canada	SAPIN-2014-00028, RGPAS 462257-2014
Science and Technology Facilities Council	ST/N00244X/1
Japan Society for the Promotion of Science	19340074, 25247045, 14F04808, 17H06090
Ministerio de Economía y Competitividad	FPA2011-28770-C03-03, FPA2014-52823-C2-1/2, SEV-2014-0398, FPA2011-24553, IJCI-2014-19172
National Research Foundation of Korea
Nemzeti Kutatási Fejlesztési és Innovációs Hivatal	K120666

Keywords

Analysis methodology
Background correction
Beta-delayed neutrons
Neutron and beta counters

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10.1016/j.nima.2019.02.004

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@article{4c369a6529be44aca3d78cb7d0f1c085,

title = "Commissioning of the BRIKEN detector for the measurement of very exotic β-delayed neutron emitters",

abstract = "A new detection system has been installed at the RIKEN Nishina Center (Japan) to investigate decay properties of very neutron-rich nuclei. The setup consists of three main parts: a moderated neutron counter, a detection system sensitive to the implantation and decay of radioactive ions, and γ-ray detectors. We describe here the setup, the commissioning experiment and some selected results demonstrating its performance for the measurement of half-lives and β-delayed neutron emission probabilities. The methodology followed in the analysis of the data is described in detail. Particular emphasis is placed on the correction of the accidental neutron background.",

keywords = "Analysis methodology, Background correction, Beta-delayed neutrons, Neutron and beta counters",

author = "{the BRIKEN collaboration} and A. Tolosa-Delgado and J. Agramunt and Tain, {J. L.} and A. Algora and C. Domingo-Pardo and Morales, {A. I.} and B. Rubio and A. Tarife{\~n}o-Saldivia and F. Calvi{\~n}o and G. Cortes and Brewer, {N. T.} and Rasco, {B. C.} and Rykaczewski, {K. P.} and Stracener, {D. W.} and Allmond, {J. M.} and R. Grzywacz and R. Yokoyama and M. Singh and T. King and M. Madurga and S. Nishimura and Phong, {V. H.} and S. Go and J. Liu and K. Matsui and H. Sakurai and Kiss, {G. G.} and T. Isobe and H. Baba and S. Kubono and N. Fukuda and Ahn, {D. S.} and Y. Shimizu and T. Sumikama and H. Suzuki and H. Takeda and S{\"o}derstr{\"o}m, {P. A.} and M. Takechi and Bruno, {C. G.} and T. Davinson and Griffin, {C. J.} and O. Hall and D. Kahl and Woods, {P. J.} and Coleman-Smith, {P. J.} and M. Labiche and I. Lazarus and P. Morrall and Pucknell, {V. F.E.} and J. Simpson",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = may,

day = "1",

doi = "10.1016/j.nima.2019.02.004",

language = "English",

volume = "925",

pages = "133--147",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

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TY - JOUR

T1 - Commissioning of the BRIKEN detector for the measurement of very exotic β-delayed neutron emitters

AU - the BRIKEN collaboration

AU - Tolosa-Delgado, A.

AU - Agramunt, J.

AU - Tain, J. L.

AU - Algora, A.

AU - Domingo-Pardo, C.

AU - Morales, A. I.

AU - Rubio, B.

AU - Tarifeño-Saldivia, A.

AU - Calviño, F.

AU - Cortes, G.

AU - Brewer, N. T.

AU - Rasco, B. C.

AU - Rykaczewski, K. P.

AU - Stracener, D. W.

AU - Allmond, J. M.

AU - Grzywacz, R.

AU - Yokoyama, R.

AU - Singh, M.

AU - King, T.

AU - Madurga, M.

AU - Nishimura, S.

AU - Phong, V. H.

AU - Go, S.

AU - Liu, J.

AU - Matsui, K.

AU - Sakurai, H.

AU - Kiss, G. G.

AU - Isobe, T.

AU - Baba, H.

AU - Kubono, S.

AU - Fukuda, N.

AU - Ahn, D. S.

AU - Shimizu, Y.

AU - Sumikama, T.

AU - Suzuki, H.

AU - Takeda, H.

AU - Söderström, P. A.

AU - Takechi, M.

AU - Bruno, C. G.

AU - Davinson, T.

AU - Griffin, C. J.

AU - Hall, O.

AU - Kahl, D.

AU - Woods, P. J.

AU - Coleman-Smith, P. J.

AU - Labiche, M.

AU - Lazarus, I.

AU - Morrall, P.

AU - Pucknell, V. F.E.

AU - Simpson, J.

PY - 2019/5/1

Y1 - 2019/5/1

N2 - A new detection system has been installed at the RIKEN Nishina Center (Japan) to investigate decay properties of very neutron-rich nuclei. The setup consists of three main parts: a moderated neutron counter, a detection system sensitive to the implantation and decay of radioactive ions, and γ-ray detectors. We describe here the setup, the commissioning experiment and some selected results demonstrating its performance for the measurement of half-lives and β-delayed neutron emission probabilities. The methodology followed in the analysis of the data is described in detail. Particular emphasis is placed on the correction of the accidental neutron background.

AB - A new detection system has been installed at the RIKEN Nishina Center (Japan) to investigate decay properties of very neutron-rich nuclei. The setup consists of three main parts: a moderated neutron counter, a detection system sensitive to the implantation and decay of radioactive ions, and γ-ray detectors. We describe here the setup, the commissioning experiment and some selected results demonstrating its performance for the measurement of half-lives and β-delayed neutron emission probabilities. The methodology followed in the analysis of the data is described in detail. Particular emphasis is placed on the correction of the accidental neutron background.

KW - Analysis methodology

KW - Background correction

KW - Beta-delayed neutrons

KW - Neutron and beta counters

UR - http://www.scopus.com/inward/record.url?scp=85061376629&partnerID=8YFLogxK

U2 - 10.1016/j.nima.2019.02.004

DO - 10.1016/j.nima.2019.02.004

M3 - Article

AN - SCOPUS:85061376629

SN - 0168-9002

VL - 925

SP - 133

EP - 147

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

ER -

Commissioning of the BRIKEN detector for the measurement of very exotic β-delayed neutron emitters

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Funding

Keywords

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