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Fission in the Lead Region- [electronic resource]
Fission in the Lead Region - [electronic resource]
Fission in the Lead Region- [electronic resource]

Detailed Information

자료유형  
 학위논문파일 국외
최종처리일시  
20240214101641
ISBN  
9798380142571
DDC  
539.7
저자명  
Anthony, Adam K. .
서명/저자  
Fission in the Lead Region - [electronic resource]
발행사항  
[S.l.]: : Michigan State University., 2023
발행사항  
Ann Arbor : : ProQuest Dissertations & Theses,, 2023
형태사항  
1 online resource(161 p.)
주기사항  
Source: Dissertations Abstracts International, Volume: 85-02, Section: B.
주기사항  
Advisor: Lynch, William G. .
학위논문주기  
Thesis (Ph.D.)--Michigan State University, 2023.
사용제한주기  
This item must not be sold to any third party vendors.
초록/해제  
요약Since its discovery in the 1930s fission has been a key tool in the quest to better understand nuclear physics. The dynamics of fission depend on the interplay of the strong and Coulomb forces. The masses and charges of the resultant fission fragments are driven by the microscopic (quantized) nature of nucleons in the nucleus. Here we explore a new method for measuring fission properties of radioactive nuclei in inverse kinematics using an Active Target (AT) Time Projection Chamber (TPC). The experiment was performed at the National Superconducting Cyclotron Laboratory (NSCL). It measured the He fusion-induced fission of neutron-deficient nuclei in the lead region. We present initial charge (Z) distributions for 204At, the most abundant species measured, at excitation energies less than 52 MeV. A complete analysis of the data from the experiment will provide cross-section and charge distribution measurements along the transition region from symmetric to asymmetric fission in this region of the charge of nuclei.To facilitate this work, a new beam particle identification system was developed. We call this system the HEavy Isotope Tagger (HEIST). Here we successfully demonstrate the tagging of heavy (Pb-like), incompletely stripped beam particles at ∼ 75 MeV/A. In addition, we also provide measurements of the charge state distributions for some nuclei in the beam. These are compared to the charge state model GLOBAL, where we find good agreement if we adjust the velocity of the beam in the GLOBAL model.
일반주제명  
Nuclear physics.
일반주제명  
Physics.
키워드  
Fission
키워드  
Inverse kinematics
키워드  
Dynamics
키워드  
Excitation energies
키워드  
Neutron-deficient nuclei
기타저자  
Michigan State University Physics - Doctor of Philosophy
기본자료저록  
Dissertations Abstracts International. 85-02B.
기본자료저록  
Dissertation Abstract International
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

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■00520240214101641
■006m          o    d                
■007cr#unu||||||||
■020    ▼a9798380142571
■035    ▼a(MiAaPQ)AAI30632560
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a539.7
■1001  ▼aAnthony,  Adam  K.  .▼0(orcid)0000-0002-3220-7474
■24510▼aFission  in  the  Lead  Region▼h[electronic  resource]
■260    ▼a[S.l.]:▼bMichigan  State  University.  ▼c2023
■260  1▼aAnn  Arbor  :▼bProQuest  Dissertations  &  Theses,  ▼c2023
■300    ▼a1  online  resource(161  p.)
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-02,  Section:  B.
■500    ▼aAdvisor:  Lynch,  William  G.  .
■5021  ▼aThesis  (Ph.D.)--Michigan  State  University,  2023.
■506    ▼aThis  item  must  not  be  sold  to  any  third  party  vendors.
■520    ▼aSince  its  discovery  in  the  1930s  fission  has  been  a  key  tool  in  the  quest  to  better  understand  nuclear  physics.  The  dynamics  of  fission  depend  on  the  interplay  of  the  strong  and  Coulomb  forces.  The  masses  and  charges  of  the  resultant  fission  fragments  are  driven  by  the  microscopic  (quantized)  nature  of  nucleons  in  the  nucleus.  Here  we  explore  a  new  method  for  measuring  fission  properties  of  radioactive  nuclei  in  inverse  kinematics  using  an  Active  Target  (AT)  Time  Projection  Chamber  (TPC).  The  experiment  was  performed  at  the  National  Superconducting  Cyclotron  Laboratory  (NSCL).  It  measured  the  He  fusion-induced  fission  of  neutron-deficient  nuclei  in  the  lead  region.  We  present  initial  charge  (Z)  distributions  for  204At,  the  most  abundant  species  measured,  at  excitation  energies  less  than  52  MeV.  A  complete  analysis  of  the  data  from  the  experiment  will  provide  cross-section  and  charge  distribution  measurements  along  the  transition  region  from  symmetric  to  asymmetric  fission  in  this  region  of  the  charge  of  nuclei.To  facilitate  this  work,  a  new  beam  particle  identification  system  was  developed.  We  call  this  system  the  HEavy  Isotope  Tagger  (HEIST).  Here  we  successfully  demonstrate  the  tagging  of  heavy  (Pb-like),  incompletely  stripped  beam  particles  at  ∼  75  MeV/A.  In  addition,  we  also  provide  measurements  of  the  charge  state  distributions  for  some  nuclei  in  the  beam.  These  are  compared  to  the  charge  state  model  GLOBAL,  where  we  find  good  agreement  if  we  adjust  the  velocity  of  the  beam  in  the  GLOBAL  model.
■590    ▼aSchool  code:  0128.
■650  4▼aNuclear  physics.
■650  4▼aPhysics.
■653    ▼aFission
■653    ▼aInverse  kinematics
■653    ▼aDynamics
■653    ▼aExcitation  energies
■653    ▼aNeutron-deficient  nuclei
■690    ▼a0756
■690    ▼a0605
■71020▼aMichigan  State  University▼bPhysics  -  Doctor  of  Philosophy.
■7730  ▼tDissertations  Abstracts  International▼g85-02B.
■773    ▼tDissertation  Abstract  International
■790    ▼a0128
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16934671▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.
■980    ▼a202402▼f2024

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