Keyword: storage-ring
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THA1I3 Predominantly Electric Storage Ring with Nuclear Spin Control Capability scattering, experiment, proton, lattice 338
 
  • R.M. Talman
    Cornell University (CLASSE), Cornell Laboratory for Accelerator-Based Sciences and Education, Ithaca, New York, USA
  
  A pre­dom­i­nantly elec­tric stor­age ring with weak su­per­im­posed mag­netic bend­ing is shown to be ca­pa­ble of stor­ing two dif­fer­ent nu­clear iso­tope bunches, such as he­lion and deuteron, co-trav­el­ing with dif­fer­ent ve­loc­i­ties on the same cen­tral orbit. ‘‘Rear-end’’ col­li­sions oc­cur­ring pe­ri­od­i­cally in a full ac­cep­tance par­ti­cle de­tec­tor/po­larime­ter, allow the (pre­vi­ously in­ac­ces­si­ble) di­rect mea­sure­ment of the spin de­pen­dence of nu­clear trans­mu­ta­tion for cen­ter of mass (CM) ki­netic en­er­gies rang­ing from hun­dreds of keV up to­ward pion pro­duc­tion thresh­olds. These are ‘‘rear-end col­li­sions’’ oc­cur­ring as faster stored bunches pass through slower bunches. An in­ex­pen­sive fa­cil­ity ca­pa­ble of meet­ing these re­quire­ments is de­scribed, with nu­clear chan­nel h + d arrow α + p as ex­am­ple.  
slides icon Slides THA1I3 [0.860 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-HB2023-THA1I3  
About • Received ※ 07 December 2023 — Accepted ※ 11 December 2023 — Issued ※ 25 December 2023  
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THBP30 Linear Modelling and Lattice Correction from Betatron Phase Measurements at the Fermilab Recycler NOvA Ring lattice, betatron, dipole, quadrupole 534
 
  • M. Xiao, R. Ainsworth, K.J. Hazelwood, M.-J. Yang
    Fermilab, Batavia, Illinois, USA
  
  Uti­liz­ing the mea­sure­ment of co­her­ent be­ta­tron os­cilla-tion phase has emerged as a fast and pre­cise ap­proach for iden­ti­fy­ing and rec­ti­fy­ing er­rors in achiev­ing a de­sired lat­tice in CESR (Cor­nell Elec­tron Stor­age Ring), using TAO analy­sis pro­gram and BMAD sub­rou­tines. One key ad­van­tage of be­ta­tron phase mea­sure­ment over ¿ meas-ure­ment is its sen­si­tiv­ity to phase vari­a­tions be­tween de­tec­tors. This soft­ware pack­age has been suc­cess­fully im­ple­mented for the Re­cy­cler Ring at Fer­mi­lab, with the adap­ta­tion of dif­fer­ent hard­ware in­stal­la­tions. By em-ploy­ing this tech­nique, a lin­ear model of the bare Recy-cler ring was es­tab­lished, en­abling the cor­rec­tion of quadru­pole er­rors.  
poster icon Poster THBP30 [1.476 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-HB2023-THBP30  
About • Received ※ 19 September 2023 — Revised ※ 05 October 2023 — Accepted ※ 11 October 2023 — Issued ※ 27 October 2023
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