Algorithm of the Computer Modelling and a SESANS Setup with Adiabatic RF-Flippers

Wicher Kraan, V.N. Zabenkin, LA Axelrod, Yu.O. Chetverikov, SV Grigoriev, E.G. Yashina, A.A. Sumbatyan

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)
17 Downloads (Pure)

Abstract

We made software to simulate Larmor precession in a setup for SESANS with adiabatic/RF flippers in magnets, existing at PNPI. The final polarisation of a divergent “ribbon beam” of height 2 cm is calculated as a function of λ. For λ= 6 A, flippers 56 cm apart and RF frequency 1 MHz we find spin-echo length δ= 0.9 μm. We show numerically, how λ is converted to δ. Extension to δ= 20 μm is realistic.
Original languageEnglish
Article number11
Pages (from-to)1281-1288
Number of pages8
JournalJournal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques
Volume11
Issue number6
Publication statusPublished - 2017

Keywords

  • Larmor precession
  • SESANS setup
  • adiabatic/RF flippers

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