Design of SECAR a recoil mass separator for astrophysical capture reactions with radioactive beams

doi:10.1016/j.nima.2017.08.048

Title: Design of SECAR a recoil mass separator for astrophysical capture reactions with radioactive beams

Abstract

A recoil mass separator SECAR has been designed for the purpose of studying low-energy (p,γ) and (α,γ) reactions in inverse kinematics with radioactive beams for masses up to about A = 65. Their reaction rates are of importance for our understanding of the energy production and nucleosynthesis during explosive hydrogen and helium burning. The radiative capture reactions take place in a windowless hydrogen or He gas target at the entrance of the separator, which consists of four Sections. The first Section selects the charge state of the recoils. The second and third Sections contain Wien Filters providing high mass resolving power to separate efficiently the intense beam from the few reaction products. In the following fourth Section, the reaction products are guided into a detector system capable of position, angle and time-of-flight measurements. In order to accept the complete kinematic cone of recoil particles including multiple scattering in the target in the center of mass energy range of 0.2 MeV to 3.0 MeV, the system must have a large polar angle acceptance of ± 25 mrad. This requires a careful minimization of higher order aberrations. Furthermore, the present system will be installed at the NSCL ReA3 accelerator and will bemore »« less

Authors:

Berg, G. P. A. ^[1]; Couder, M. ^[1]; Moran, M. T. ^[1]; Smith, K. ^[2]; Wiescher, M. ^[1]; Schatz, H. ^[3]; Hager, U. ^[3]; Wrede, C. ^[3]; Montes, F. ^[3]; Perdikakis, G. ^[3]; Wu, X. ^[4]; Zeller, A. ^[3]; Smith, M. S. ^[5]; Bardayan, D. W. ^[6]; Chipps, K. A. ^[5]; Pain, S. D. ^[5]; Blackmon, J. ^[7]; Greife, U. ^[8]; Rehm, K. E. ^[9]; Janssens, R. V. F. ^[9]

Univ. of Notre Dame, Notre Dame, IN (United States)
Univ. of Notre Dame, Notre Dame, IN (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Michigan State Univ., East Lansing, MI (United States)
Michigan State Univ., East Lansing, MI (United States); Ionetix Corp., Lansing, MI (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Notre Dame, Notre Dame, IN (United States)
Louisiana State Univ., Baton Rouge, LA (United States)
Colorado School of Mines, Golden, CO (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)

Publication Date:: 2017-09-25

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: University of Notre Dame; National Science Foundation (NSF); Michigan State University; USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)

OSTI Identifier:: 1402079

Alternate Identifier(s):: OSTI ID: 1430018; OSTI ID: 1480618; OSTI ID: 1549319

Report Number(s):: [LA-UR-17-30596]
[Journal ID: ISSN 0168-9002; 134670; TRN: US1703235]

Grant/Contract Number:: [AC02-06CH11357; AC52-06NA25396; AC05-00OR22725; SC0014384]

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: 877; 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; Radiative proton and alpha capture; Recoil mass separator; Wien Filter

Citation Formats


                    Berg, G. P. A., Couder, M., Moran, M. T., Smith, K., Wiescher, M., Schatz, H., Hager, U., Wrede, C., Montes, F., Perdikakis, G., Wu, X., Zeller, A., Smith, M. S., Bardayan, D. W., Chipps, K. A., Pain, S. D., Blackmon, J., Greife, U., Rehm, K. E., and Janssens, R. V. F. Design of SECAR a recoil mass separator for astrophysical capture reactions with radioactive beams.  United States: N. p., 2017. 
        Web.  doi:10.1016/j.nima.2017.08.048.

Copy to clipboard


                    Berg, G. P. A., Couder, M., Moran, M. T., Smith, K., Wiescher, M., Schatz, H., Hager, U., Wrede, C., Montes, F., Perdikakis, G., Wu, X., Zeller, A., Smith, M. S., Bardayan, D. W., Chipps, K. A., Pain, S. D., Blackmon, J., Greife, U., Rehm, K. E., & Janssens, R. V. F. Design of SECAR a recoil mass separator for astrophysical capture reactions with radioactive beams.  United States.  doi:10.1016/j.nima.2017.08.048.

Copy to clipboard


                    Berg, G. P. A., Couder, M., Moran, M. T., Smith, K., Wiescher, M., Schatz, H., Hager, U., Wrede, C., Montes, F., Perdikakis, G., Wu, X., Zeller, A., Smith, M. S., Bardayan, D. W., Chipps, K. A., Pain, S. D., Blackmon, J., Greife, U., Rehm, K. E., and Janssens, R. V. F. Mon .  
        "Design of SECAR a recoil mass separator for astrophysical capture reactions with radioactive beams".  United States.  doi:10.1016/j.nima.2017.08.048.  https://www.osti.gov/servlets/purl/1402079.

Copy to clipboard


                    
@article{osti_1402079,

  title        = {Design of SECAR a recoil mass separator for astrophysical capture reactions with radioactive beams},

  author       = {Berg, G. P. A. and Couder, M. and Moran, M. T. and Smith, K. and Wiescher, M. and Schatz, H. and Hager, U. and Wrede, C. and Montes, F. and Perdikakis, G. and Wu, X. and Zeller, A. and Smith, M. S. and Bardayan, D. W. and Chipps, K. A. and Pain, S. D. and Blackmon, J. and Greife, U. and Rehm, K. E. and Janssens, R. V. F.},

  abstractNote = {A recoil mass separator SECAR has been designed for the purpose of studying low-energy (p,γ) and (α,γ) reactions in inverse kinematics with radioactive beams for masses up to about A = 65. Their reaction rates are of importance for our understanding of the energy production and nucleosynthesis during explosive hydrogen and helium burning. The radiative capture reactions take place in a windowless hydrogen or He gas target at the entrance of the separator, which consists of four Sections. The first Section selects the charge state of the recoils. The second and third Sections contain Wien Filters providing high mass resolving power to separate efficiently the intense beam from the few reaction products. In the following fourth Section, the reaction products are guided into a detector system capable of position, angle and time-of-flight measurements. In order to accept the complete kinematic cone of recoil particles including multiple scattering in the target in the center of mass energy range of 0.2 MeV to 3.0 MeV, the system must have a large polar angle acceptance of ± 25 mrad. This requires a careful minimization of higher order aberrations. Furthermore, the present system will be installed at the NSCL ReA3 accelerator and will be used with the much higher beam intensities of the FRIB facility when it becomes available.},

  doi          = {10.1016/j.nima.2017.08.048},

  journal      = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},

  number       = [C],

  volume       = [877],

  place        = {United States},

  year         = {2017},

  month        = {9}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Accepted Manuscript (DOE)

Publisher's Version of Record

DOI: 10.1016/j.nima.2017.08.048

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 2 works

Citation information provided by
Web of Science

Figures / Tables:

Table 1.: Reactions of astrophysical interest together with kinematic parameters that determine the design parameters.

All figures and tables (21 total)

Save / Share:

Export Metadata

Save to My Library

Figures / Tables found in this record:

Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.

Similar Records in DOE PAGES and OSTI.GOV collections:

A recoil separator for nuclear astrophysics SECAR

Journal Article Berg, G. P. A. ; Bardayan, D. W. ; Blackmon, J. C. ; ... - Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms

In this paper, a recoil separator SECAR has been designed to study radiative capture reactions relevant for the astrophysical rp-process in inverse kinematics for the Facility for Rare Isotope Beams (FRIB). Finally, we describe the design, layout, and ion optics of the recoil separator and present the status of the project.
Cited by 2
DOI: 10.1016/j.nimb.2016.02.009

Full Text Available
JANUS — A setup for low-energy Coulomb excitation at ReA3

Journal Article Lunderberg, E. ; Belarge, J. ; Bender, P. C. ; ... - Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

We report that a new experimental setup for low-energy Coulomb excitation experiments was constructed in a collaboration between the National Superconducting Cyclotron Laboratory (NSCL), Lawrence Livermore National Laboratory (LLNL), and the University of Rochester and was commissioned at the general purpose beam line of NSCL's ReA3 reaccelerator facility. The so-called JANUS setup combines γ-ray detection with the Segmented Ge Array (SeGA) and scattered particle detection using a pair of segmented double-sided Si detectors (Bambino 2). The low-energy Coulomb excitation program that JANUS enables will complement intermediate-energy Coulomb excitation studies that have long been performed at NSCL by providing access tomore »« less
Cited by 1
DOI: 10.1016/j.nima.2017.12.057

Full Text Available
Searching for a dark photon with DarkLight

Journal Article Corliss, R. - Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

Here, we describe the current status of the DarkLight experiment at Jefferson Laboratory. DarkLight is motivated by the possibility that a dark photon in the mass range 10 to 100 MeV/c ² could couple the dark sector to the Standard Model. DarkLight will precisely measure electron proton scattering using the 100 MeV electron beam of intensity 5 mA at the Jefferson Laboratory energy recovering linac incident on a windowless gas target of molecular hydrogen. We will detect the complete final state including scattered electron, recoil proton, and e ⁺e ^- pair. A phase-I experiment has been funded and is expectedmore »« less
Cited by 4
DOI: 10.1016/j.nima.2016.07.053

Full Text Available
Study of the Mu2e sensitivity to the $$\mu^-\rightarrow e^+$$ conversion process

Thesis/Dissertation Diociaiuti, Eleonora

The Mu2e experiment at Fermilab (Batavia, IL) will search for the coherent neutrinoless conversion of a muon into an electron in the electric field of an aluminum atom. The conversion process results in a monochromatic electron with energy slightly below the muon rest mass (more »« less
DOI: 10.2172/1605578

Full Text Available
Experiments on the synthesis of superheavy nuclei ${}^{284}{Fl}$ and ${}^{285}{Fl}$ in the ${}^{239, 240}{Pu} + {}^{48}{Ca}$ reactions

Journal Article Utyonkov, Vladimir K. ; Brewer, Nathan T. ; Oganessian, Yuri Ts. ; ... - Physical Review. C, Nuclear Physics

Irradiations of ²³⁹Pu and ²⁴⁰Pu targets with 48Ca beams aimed at the synthesis of Z=114 flerovium isotopes were performed at the Dubna Gas Filled Recoil Separator. A new spontaneously fissioning (SF) isotope ²⁸⁴Fl was produced for the first time in the ²⁴⁰Pu+ ⁴⁸Ca (250 MeV) and ²³⁹Pu+ ⁴⁸Ca (245 MeV) reactions. The cross section of the ²³⁹Pu( ⁴⁸Ca,3n) ²⁸⁴Fl reaction channel was about 20 times lower than predicted by theoretical models and about 50 times lower than the maximum fusion-evaporation cross section for the 3n and 4n channels measured in the ²⁴⁴Pu+ ⁴⁸Ca reaction. In the ²⁴⁰Pu+ ⁴⁸Ca experiment, performedmore »« less
Cited by 30
DOI: 10.1103/PhysRevC.92.034609

Full Text Available

Similar Records