$β$-delayed-neutron studies of 135,136Sb and 140I performed with trapped ions

Wang, B. S.; Caldwell, S. A.; Scielzo, N. D.; Czeszumska, A.; Clark, J. A.; Savard, G.; Aprahamian, A.; Burkey, M. T.; Chiara, C. J.; Harker, J.; Levand, A. F.; Marley, S. T.; Morgan, G. E.; Munson, J. M.; Norman, E. B.; Nystrom, A.; Orford, R.; Padgett, S. W.; Pérez Galván, A.; Sharma, K. S.; Siegl, K.; Strauss, S. Y.

doi:10.1103/PhysRevC.101.025806

Title: $$β$$-delayed-neutron studies of ^135,136Sb and ¹⁴⁰I performed with trapped ions

Abstract

In this work, Beta-delayed-neutron $(βn)$ spectroscopy was performed using the Beta-decay Paul Trap and an array of radiation detectors. The $βn$ branching ratios and energy spectra for ^135,136Sb and ¹⁴⁰I were obtained by measuring the time of flight of recoil ions emerging from the trapped ion cloud. These nuclei are located at the edge of an isotopic region identified as having $βn$ branching ratios that impact the $$r$$-process abundance pattern around the A ≈ 130 peak. For ^135,136Sb and ¹⁴⁰I, $βn$ branching ratios of 14.6(13)%, 17.6(29)%, and 7.6(28)% were determined, respectively. The $βn$ energy spectra obtained for ¹³⁵Sb and ¹⁴⁰I are compared with results from direct neutron measurements, and the $βn$ energy spectrum for ¹³⁶Sb has been measured for the first time.

Authors:

^[1]; Caldwell, S. A. ^[2]; Scielzo, N. D. ^[3]; Czeszumska, A. ^[1]; Clark, J. A. ^[4]; Savard, G. ^[5]; Aprahamian, A. ^[6]; Burkey, M. T. ^[7]; Chiara, C. J. ^[8]; Harker, J. ^[8]; Levand, A. F. ^[4]; Marley, S. T. ^[9]; Morgan, G. E. ^[10]; Munson, J. M. ^[11]; Norman, E. B. ^[11]; Nystrom, A. ^[12]; Orford, R. ^[13]; Padgett, S. W. ^[3]; Pérez Galván, A. ^[4]; Sharma, K. S. ^[14] more »

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Berkeley, CA (United States)
Univ. of Chicago, IL (United States); Argonne National Lab. (ANL), Lemont, IL (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Argonne National Lab. (ANL), Lemont, IL (United States)
Argonne National Lab. (ANL), Lemont, IL (United States); Univ. of Chicago, IL (United States)
Univ. of Notre Dame, IN (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Argonne National Lab. (ANL), Lemont, IL (United States)
Argonne National Lab. (ANL), Lemont, IL (United States); Univ. of Maryland, College Park, MD (United States)
Louisiana State Univ., Baton Rouge, LA (United States); Univ. of Notre Dame, IN (United States)
Univ. of Manitoba, Winnipeg (Canada); Argonne National Lab. (ANL), Lemont, IL (United States)
Univ. of California, Berkeley, CA (United States)
Univ. of Notre Dame, IN (United States); Argonne National Lab. (ANL), Lemont, IL (United States)
McGill Univ., Montreal, QC (Canada); Argonne National Lab. (ANL), Lemont, IL (United States)
Univ. of Manitoba, Winnipeg (Canada)

Publication Date:: 2020-02-24

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Maryland, College Park, MD (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Nuclear Physics (NP); Louisiana State Board of Regents; Natural Sciences and Engineering Research Council of Canada (NSERC); National Science Foundation (NSF); US Department of Homeland Security (DHS)

OSTI Identifier:: 1604280

Alternate Identifier(s):: OSTI ID: 1601707; OSTI ID: 1761509

Report Number(s):: LLNL-JRNL-760965
Journal ID: ISSN 2469-9985; PRVCAN; 949573; TRN: US2104204

Grant/Contract Number:: AC52-07NA27344; NA0000979; NA0002135; AC02-06CH11357; FG02-94ER40834; PHY-1419765

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review C

Additional Journal Information:: Journal Volume: 101; Journal Issue: 2; Journal ID: ISSN 2469-9985

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 43 PARTICLE ACCELERATORS; 42 ENGINEERING; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Beta decay; nuclear astrophysics; nuclear structure & decays; r process

Citation Formats


                    Wang, B. S., Caldwell, S. A., Scielzo, N. D., Czeszumska, A., Clark, J. A., Savard, G., Aprahamian, A., Burkey, M. T., Chiara, C. J., Harker, J., Levand, A. F., Marley, S. T., Morgan, G. E., Munson, J. M., Norman, E. B., Nystrom, A., Orford, R., Padgett, S. W., Pérez Galván, A., Sharma, K. S., Siegl, K., and Strauss, S. Y. $β$-delayed-neutron studies of 135,136Sb and 140I performed with trapped ions.  United States: N. p., 2020. 
Web.  doi:10.1103/PhysRevC.101.025806.

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                    Wang, B. S., Caldwell, S. A., Scielzo, N. D., Czeszumska, A., Clark, J. A., Savard, G., Aprahamian, A., Burkey, M. T., Chiara, C. J., Harker, J., Levand, A. F., Marley, S. T., Morgan, G. E., Munson, J. M., Norman, E. B., Nystrom, A., Orford, R., Padgett, S. W., Pérez Galván, A., Sharma, K. S., Siegl, K., & Strauss, S. Y. $β$-delayed-neutron studies of 135,136Sb and 140I performed with trapped ions.  United States.  https://doi.org/10.1103/PhysRevC.101.025806

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                    Wang, B. S., Caldwell, S. A., Scielzo, N. D., Czeszumska, A., Clark, J. A., Savard, G., Aprahamian, A., Burkey, M. T., Chiara, C. J., Harker, J., Levand, A. F., Marley, S. T., Morgan, G. E., Munson, J. M., Norman, E. B., Nystrom, A., Orford, R., Padgett, S. W., Pérez Galván, A., Sharma, K. S., Siegl, K., and Strauss, S. Y. Mon .  
"$β$-delayed-neutron studies of 135,136Sb and 140I performed with trapped ions".  United States.  https://doi.org/10.1103/PhysRevC.101.025806.  https://www.osti.gov/servlets/purl/1604280.

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@article{osti_1604280,

  title        = {$β$-delayed-neutron studies of 135,136Sb and 140I performed with trapped ions},

  author       = {Wang, B. S. and Caldwell, S. A. and Scielzo, N. D. and Czeszumska, A. and Clark, J. A. and Savard, G. and Aprahamian, A. and Burkey, M. T. and Chiara, C. J. and Harker, J. and Levand, A. F. and Marley, S. T. and Morgan, G. E. and Munson, J. M. and Norman, E. B. and Nystrom, A. and Orford, R. and Padgett, S. W. and Pérez Galván, A. and Sharma, K. S. and Siegl, K. and Strauss, S. Y.},

  abstractNote = {In this work, Beta-delayed-neutron $(βn)$ spectroscopy was performed using the Beta-decay Paul Trap and an array of radiation detectors. The $βn$ branching ratios and energy spectra for 135,136Sb and 140I were obtained by measuring the time of flight of recoil ions emerging from the trapped ion cloud. These nuclei are located at the edge of an isotopic region identified as having $βn$ branching ratios that impact the $r$-process abundance pattern around the A ≈ 130 peak. For 135,136Sb and 140I, $βn$ branching ratios of 14.6(13)%, 17.6(29)%, and 7.6(28)% were determined, respectively. The $βn$ energy spectra obtained for 135Sb and 140I are compared with results from direct neutron measurements, and the $βn$ energy spectrum for 136Sb has been measured for the first time.},

  doi          = {10.1103/PhysRevC.101.025806},

  journal      = {Physical Review C},

  number       = 2,

  volume       = 101,

  place        = {United States},

  year         = {2020},

  month        = {2}

}

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Title: $$β$$-delayed-neutron studies of 135,136Sb and 140I performed with trapped ions

Abstract

Citation Formats

Nuclear Data Sheets for A = 135 journal, March 2008

Independent Fission Yields and Neutron Emission Probabilities of Short-Lived Halogen Isotopes journal, January 1978

r -PROCESS NUCLEOSYNTHESIS IN DYNAMICALLY EJECTED MATTER OF NEUTRON STAR MERGERS journal, August 2011

The CARIBU gas catcher journal, June 2016

Large β -Delayed Neutron Emission Probabilities in the Ni 78 Region journal, April 2009

Half-lives, fission yields and neutron emission probabilities of neutron-rich antimony isotopes journal, January 1977

Calculation of delayed-neutron energy spectra in a quasiparticle random-phase approximation–Hauser-Feshbach model journal, November 2008

β− Strength function phenomena of exotic nuclei: A critical examination of the significance of nuclear model predictions journal, April 1984

The impact of individual nuclear properties on r -process nucleosynthesis journal, January 2016

Geant4 developments and applications journal, February 2006

Gross properties of delayed neutron emission and β-strength functions journal, June 1972

A compact high-resolution isobar separator for the CARIBU project journal, October 2008

Delayed-Neutron Branching Ratios of Precursors in the Fission Product Region journal, January 1993

Low‐distortion resistive anodes for two‐dimensional position‐sensitive MCP systems journal, September 1979

R-process nucleosynthesis in the high-entropy supernova bubble journal, November 1992

Synthesis of the Elements in Stars journal, October 1957

Half-lives andP n values of delayed-neutron precursors in the mass chains 85?87, 92, 135, 136 and 145 journal, March 1978

Delayed neutron precursors—II journal, August 1968

Nuclear Reactions in Stars and Nucleogenesis journal, June 1957

Recoil effects in allowed beta decay: The elementary particle approach journal, October 1974

The Canadian Penning Trap mass spectrometer journal, December 2004

An international cooperation to improve delayed neutron data journal, July 2002

Delayed neutron emission probabilities of the precursors89,90,91Br and139,140,141I journal, December 1980

Advances in studies of nuclei far from stability journal, May 1985

The Paul trap: A radiofrequency-quadrupole ion trap for precision studies journal, July 2012

First operation and mass separation with the CARIBU MR-TOF journal, June 2016

Recoil-ion charge-state distribution following the β + decay of 21 Na journal, August 2003

Delayed-neutron emission from short-lived Br and I isotopes journal, August 1974

Nuclear Data Sheets for A = 140 journal, July 2007

Charged-Particle and Neutron-Capture Processes in the High-Entropy wind of Core-Collapse Supernovae journal, March 2010

The Canadian Penning trap mass spectrometer journal, November 1997

Energy spectra of delayed neutrons from separated fission products journal, January 1977

Recoil ions from the β decay of Sb 134 confined in a Paul trap journal, March 2018

Spectroscopic identification of r-process nucleosynthesis in a double neutron-star merger journal, October 2017

Energy spectra of delayed neutrons from separated fission products journal, September 1974

Energy spectra of delayed neutrons from separated fission products journal, December 1974

β -Delayed Neutron Spectroscopy Using Trapped Radioactive Ions journal, February 2013

Radioactive beams from gas catchers: The CARIBU facility journal, October 2008

Investigation of beta strength functions by neutron and gamma-ray spectroscopy journal, April 1979

The importance of delayed neutrons in nuclear research—A review journal, January 1994

Nuclear Data Sheets for A = 136 journal, April 2002

Recoil-ion detection efficiency for complex β decays studied using the Beta-decay Paul Trap journal, August 2018

First determination of β -delayed multiple neutron emission beyond A = 100 through direct neutron measurement: The P 2 n value of Sb 136 journal, September 2018

Overlapping β decay and resonance neutron spectroscopy of levels in Kr 87 journal, August 1983

Geant4—a simulation toolkit journal, July 2003

A Novel Approach to β-delayed Neutron Spectroscopy Using the Beta-decay Paul Trap journal, June 2014

Electromagnetic traps for charged and neutral particles journal, July 1990

Microchannel plate detectors journal, June 1979

Status of delayed-neutron precursor data: half-lives and neutron emission probabilities journal, July 2002

Improving systematic predictions of β -delayed neutron emission probabilities journal, October 2012

Delayed neutron emission probabilities of gallium, bromine, rubidium, indium, antimony, iodine, and cesium precursors journal, September 1980

Charged-Particle and Neutron-Capture Processes in the High-Entropy Wind of Core-Collapse Supernovae text, January 2010

R-Process Nucleosynthesis in Dynamically Ejected Matter of Neutron Star Mergers text, January 2011

Spectroscopic identification of r-process nucleosynthesis in a double neutron star merger text, January 2017

Status of delayed-neutron precursor data: Half-lives and neutron emission probabilities preprint, January 2001

Title: $$β$$-delayed-neutron studies of ^135,136Sb and ¹⁴⁰I performed with trapped ions

Nuclear Data Sheets for A = 135
journal, March 2008

Independent Fission Yields and Neutron Emission Probabilities of Short-Lived Halogen Isotopes
journal, January 1978

r -PROCESS NUCLEOSYNTHESIS IN DYNAMICALLY EJECTED MATTER OF NEUTRON STAR MERGERS
journal, August 2011

The CARIBU gas catcher
journal, June 2016

Large $β$ -Delayed Neutron Emission Probabilities in the ${}^{78}{Ni}$ Region
journal, April 2009

Half-lives, fission yields and neutron emission probabilities of neutron-rich antimony isotopes
journal, January 1977

Calculation of delayed-neutron energy spectra in a quasiparticle random-phase approximation–Hauser-Feshbach model
journal, November 2008

β− Strength function phenomena of exotic nuclei: A critical examination of the significance of nuclear model predictions
journal, April 1984

The impact of individual nuclear properties on $r$ -process nucleosynthesis
journal, January 2016

Geant4 developments and applications
journal, February 2006

Gross properties of delayed neutron emission and β-strength functions
journal, June 1972

A compact high-resolution isobar separator for the CARIBU project
journal, October 2008

Delayed-Neutron Branching Ratios of Precursors in the Fission Product Region
journal, January 1993

Low‐distortion resistive anodes for two‐dimensional position‐sensitive MCP systems
journal, September 1979

R-process nucleosynthesis in the high-entropy supernova bubble
journal, November 1992

Synthesis of the Elements in Stars
journal, October 1957

Half-lives andP n values of delayed-neutron precursors in the mass chains 85?87, 92, 135, 136 and 145
journal, March 1978

Delayed neutron precursors—II
journal, August 1968

Nuclear Reactions in Stars and Nucleogenesis
journal, June 1957

Recoil effects in allowed beta decay: The elementary particle approach
journal, October 1974

The Canadian Penning Trap mass spectrometer
journal, December 2004

An international cooperation to improve delayed neutron data
journal, July 2002

Delayed neutron emission probabilities of the precursors89,90,91Br and139,140,141I
journal, December 1980

Advances in studies of nuclei far from stability
journal, May 1985

The Paul trap: A radiofrequency-quadrupole ion trap for precision studies
journal, July 2012

First operation and mass separation with the CARIBU MR-TOF
journal, June 2016

Recoil-ion charge-state distribution following the $β^{+}$ decay of $^{21} Na$
journal, August 2003

Delayed-neutron emission from short-lived Br and I isotopes
journal, August 1974

Nuclear Data Sheets for A = 140
journal, July 2007

Charged-Particle and Neutron-Capture Processes in the High-Entropy wind of Core-Collapse Supernovae
journal, March 2010

The Canadian Penning trap mass spectrometer
journal, November 1997

Energy spectra of delayed neutrons from separated fission products
journal, January 1977

Recoil ions from the $β$ decay of ${}^{134}{Sb}$ confined in a Paul trap
journal, March 2018

Spectroscopic identification of r-process nucleosynthesis in a double neutron-star merger
journal, October 2017

Energy spectra of delayed neutrons from separated fission products
journal, September 1974

Energy spectra of delayed neutrons from separated fission products
journal, December 1974

$β$ -Delayed Neutron Spectroscopy Using Trapped Radioactive Ions
journal, February 2013

Radioactive beams from gas catchers: The CARIBU facility
journal, October 2008

Investigation of beta strength functions by neutron and gamma-ray spectroscopy
journal, April 1979

The importance of delayed neutrons in nuclear research—A review
journal, January 1994

Nuclear Data Sheets for A = 136
journal, April 2002

Recoil-ion detection efficiency for complex $β$ decays studied using the Beta-decay Paul Trap
journal, August 2018

First determination of $β$ -delayed multiple neutron emission beyond $A = 100$ through direct neutron measurement: The $P_{2 n}$ value of ${}^{136}{Sb}$
journal, September 2018

Overlapping $β$ decay and resonance neutron spectroscopy of levels in ${}^{87}{Kr}$
journal, August 1983

Geant4—a simulation toolkit
journal, July 2003

A Novel Approach to β-delayed Neutron Spectroscopy Using the Beta-decay Paul Trap
journal, June 2014

Electromagnetic traps for charged and neutral particles
journal, July 1990

Microchannel plate detectors
journal, June 1979

Status of delayed-neutron precursor data: half-lives and neutron emission probabilities
journal, July 2002

Improving systematic predictions of $β$ -delayed neutron emission probabilities
journal, October 2012

Delayed neutron emission probabilities of gallium, bromine, rubidium, indium, antimony, iodine, and cesium precursors
journal, September 1980

Charged-Particle and Neutron-Capture Processes in the High-Entropy Wind of Core-Collapse Supernovae
text, January 2010

R-Process Nucleosynthesis in Dynamically Ejected Matter of Neutron Star Mergers
text, January 2011

Spectroscopic identification of r-process nucleosynthesis in a double neutron star merger
text, January 2017

Status of delayed-neutron precursor data: Half-lives and neutron emission probabilities
preprint, January 2001