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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 -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. Here, 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.

Authors:
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Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
Contributing Org.:
BRIKEN Collaboration
OSTI Identifier:
1570891
Alternate Identifier(s):
OSTI ID: 1547777
Grant/Contract Number:  
AC05-00OR22725; NA0002132
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 925; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Beta-delayed neutrons; Neutron and beta counters; Analysis methodology; Background correction

Citation Formats

Tolosa-Delgado, A., Agramunt, J., Tain, J. L., Algora, A., Domingo-Pardo, C., Morales, A. I., Rubio, B., Tarifeño-Saldivia, A., Calviño, F., Cortes, G., Brewer, N. T., Rasco, B. C., Rykaczewski, K. P., Stracener, D. W., Allmond, J. M., Grzywacz, R., Yokoyama, R., Singh, M., King, T., Madurga, M., Nishimura, S., Phong, V. H., Go, S., Liu, J., Matsui, K., Sakurai, H., Kiss, G. G., Isobe, T., Baba, H., Kubono, S., Fukuda, N., Ahn, D. S., Shimizu, Y., Sumikama, T., Suzuki, H., Takeda, H., Söderström, P. A., Takechi, M., Bruno, C. G., Davinson, T., Griffin, C. J., Hall, O., Kahl, D., Woods, P. J., Coleman-Smith, P. J., Labiche, M., Lazarus, I., Morrall, P., Pucknell, V. F. E., Simpson, J., Thomas, S. L., Prydderch, M., Harkness-Brennan, L. J., Page, R. D., Dillmann, I., Caballero-Folch, R., Saito, Y., Estrade, A., Nepal, N., Montes, F., Lorusso, G., Liang, J., Bae, S., Ha, J., and Moon, B.. Commissioning of the BRIKEN detector for the measurement of very exotic β-delayed neutron emitters. United States: N. p., 2019. Web. https://doi.org/10.1016/j.nima.2019.02.004.
Tolosa-Delgado, A., Agramunt, J., Tain, J. L., Algora, A., Domingo-Pardo, C., Morales, A. I., Rubio, B., Tarifeño-Saldivia, A., Calviño, F., Cortes, G., Brewer, N. T., Rasco, B. C., Rykaczewski, K. P., Stracener, D. W., Allmond, J. M., Grzywacz, R., Yokoyama, R., Singh, M., King, T., Madurga, M., Nishimura, S., Phong, V. H., Go, S., Liu, J., Matsui, K., Sakurai, H., Kiss, G. G., Isobe, T., Baba, H., Kubono, S., Fukuda, N., Ahn, D. S., Shimizu, Y., Sumikama, T., Suzuki, H., Takeda, H., Söderström, P. A., Takechi, M., Bruno, C. G., Davinson, T., Griffin, C. J., Hall, O., Kahl, D., Woods, P. J., Coleman-Smith, P. J., Labiche, M., Lazarus, I., Morrall, P., Pucknell, V. F. E., Simpson, J., Thomas, S. L., Prydderch, M., Harkness-Brennan, L. J., Page, R. D., Dillmann, I., Caballero-Folch, R., Saito, Y., Estrade, A., Nepal, N., Montes, F., Lorusso, G., Liang, J., Bae, S., Ha, J., & Moon, B.. Commissioning of the BRIKEN detector for the measurement of very exotic β-delayed neutron emitters. United States. https://doi.org/10.1016/j.nima.2019.02.004
Tolosa-Delgado, A., Agramunt, J., Tain, J. L., Algora, A., Domingo-Pardo, C., Morales, A. I., Rubio, B., Tarifeño-Saldivia, A., Calviño, F., Cortes, G., Brewer, N. T., Rasco, B. C., Rykaczewski, K. P., Stracener, D. W., Allmond, J. M., Grzywacz, R., Yokoyama, R., Singh, M., King, T., Madurga, M., Nishimura, S., Phong, V. H., Go, S., Liu, J., Matsui, K., Sakurai, H., Kiss, G. G., Isobe, T., Baba, H., Kubono, S., Fukuda, N., Ahn, D. S., Shimizu, Y., Sumikama, T., Suzuki, H., Takeda, H., Söderström, P. A., Takechi, M., Bruno, C. G., Davinson, T., Griffin, C. J., Hall, O., Kahl, D., Woods, P. J., Coleman-Smith, P. J., Labiche, M., Lazarus, I., Morrall, P., Pucknell, V. F. E., Simpson, J., Thomas, S. L., Prydderch, M., Harkness-Brennan, L. J., Page, R. D., Dillmann, I., Caballero-Folch, R., Saito, Y., Estrade, A., Nepal, N., Montes, F., Lorusso, G., Liang, J., Bae, S., Ha, J., and Moon, B.. Wed . "Commissioning of the BRIKEN detector for the measurement of very exotic β-delayed neutron emitters". United States. https://doi.org/10.1016/j.nima.2019.02.004. https://www.osti.gov/servlets/purl/1570891.
@article{osti_1570891,
title = {Commissioning of the BRIKEN detector for the measurement of very exotic β-delayed neutron emitters},
author = {Tolosa-Delgado, A. and Agramunt, J. and Tain, J. L. and Algora, A. and Domingo-Pardo, C. and Morales, A. I. and Rubio, B. and Tarifeño-Saldivia, A. and Calviño, F. and Cortes, G. and Brewer, N. T. and Rasco, B. C. and Rykaczewski, K. P. and Stracener, D. W. and Allmond, J. M. and Grzywacz, R. and Yokoyama, R. and Singh, M. and King, T. and Madurga, M. and Nishimura, S. and Phong, V. H. and Go, S. and Liu, J. and Matsui, K. and Sakurai, H. and Kiss, G. G. and Isobe, T. and Baba, H. and Kubono, S. and Fukuda, N. and Ahn, D. S. and Shimizu, Y. and Sumikama, T. and Suzuki, H. and Takeda, H. and Söderström, P. A. and Takechi, M. and Bruno, C. G. and Davinson, T. and Griffin, C. J. and Hall, O. and Kahl, D. and Woods, P. J. and Coleman-Smith, P. J. and Labiche, M. and Lazarus, I. and Morrall, P. and Pucknell, V. F. E. and Simpson, J. and Thomas, S. L. and Prydderch, M. and Harkness-Brennan, L. J. and Page, R. D. and Dillmann, I. and Caballero-Folch, R. and Saito, Y. and Estrade, A. and Nepal, N. and Montes, F. and Lorusso, G. and Liang, J. and Bae, S. and Ha, J. and Moon, B.},
abstractNote = {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 -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. Here, 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.},
doi = {10.1016/j.nima.2019.02.004},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 925,
place = {United States},
year = {2019},
month = {2}
}

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    Works referencing / citing this record:

    Strong one-neutron emission from two-neutron unbound states in β decays of the r -process nuclei Ga 86 , 87
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