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

Title

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

 Author

Kraan, W.H. (TU Delft RST/Neutron and Positron Methods in Materials)
Zabenkin, V.N. (Petersburg Nuclear Physics Institute (PNPI))
Axelrod, LA (Petersburg Nuclear Physics Institute (PNPI))
Chetverikov, Yu.O. (Petersburg Nuclear Physics Institute (PNPI))
Grigoriev, SV (Petersburg Nuclear Physics Institute (PNPI))
Yashina, E.G. (Petersburg Nuclear Physics Institute (PNPI))
Sumbatyan, A.A. (Petersburg Nuclear Physics Institute (PNPI))

Date

2017

 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.

 Subject

Larmor precession
SESANS setup
adiabatic/RF flippers

 To reference this document use:

http://resolver.tudelft.nl/uuid:4e82aa0a-196c-471d-b471-81c3b44394b2

 ISSN

1027-4510

 Source

Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques, 11 (6), 1281-1288

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

© 2017 W.H. Kraan, V.N. Zabenkin, LA Axelrod, Yu.O. Chetverikov, SV Grigoriev, E.G. Yashina, A.A. Sumbatyan
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