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Title: Numerical modeling of a proton spin-flipping system in the spin transparency mode at an integer spin resonance in JINR's Nuclotron

Journal Article · · Journal of Instrumentation
 [1];  [2];  [2];  [3];  [1];  [1];  [4];  [4];  [4];  [5];  [6]
  1. Moscow Inst. of Physics and Technology (MIPT), Moscow (Russian Federation)
  2. Moscow Inst. of Physics and Technology (MIPT), Moscow (Russian Federation); Science and Technique Laboratory, Novosibirsk (Russian Federation)
  3. Science and Technique Laboratory, Novosibirsk (Russian Federation)
  4. Joint Inst. for Nuclear Research (JINR), Dubna (Russian Federation)
  5. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  6. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
+ Show Author Affiliations

In this paper we propose a lattice insertion for the Nuclotron ring called a “spin navigator” that can adjust any direction of the proton polarization in the orbital plane using weak solenoids. The polarization control is realized in the spin transparency mode at the energy of 108 MeV, which corresponds to the integer spin resonance γ G = 2. The requirements on the navigator solenoid fields are specified considering the criteria for stability of the spin motion during any manipulation of the polarization direction in an experiment. Additionally, this paper presents the results of numerical modeling of the proton spin dynamics in the Nuclotron ring operated in the spin transparency mode. The verified spin navigator is aimed at an experimental study of a spin-flipping system using the Nuclotron ring. The results are relevant to the NICA (JINR), EIC (BNL) and COSY (FZJ) facilities where the spin transparency mode can be applied for polarization control.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); Russian Foundation for Basic Research (RFBR)
Grant/Contract Number:
AC05-06OR23177; 20-02-00808; AC05- 00OR22725
OSTI ID:
1883316
Report Number(s):
JLAB-ACP-21-3517; DOE/OR/23177-5601; TRN: US2307979
Journal Information:
Journal of Instrumentation, Vol. 16, Issue 12; ISSN 1748-0221
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English

References (17)

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journal September 2009
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Spin response function technique in spin-transparent synchrotrons journal August 2020
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conference January 2003
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Electron-Ion Collider: The next QCD frontier: Understanding the glue that binds us all journal September 2016
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The ray-tracing code Zgoubi journal May 1999
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Related Subjects

47 OTHER INSTRUMENTATION
accelerator modelling and simulations
multi-particle dynamics
single-particle dynamics
accelerator subsystems and technologies
beam dynamics
instrumentation for particle accelerators and storage rings
linear accelerators
synchrotrons