publication . Article . 2017

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

Kraan, W.H.; Zabenkin, V.N.; Axelrod, LA; Chetverikov, Yu.O.; Grigoriev, SV; Yashina, E.G.; Sumbatyan, A.A.;
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  • Published: 01 Jan 2017 Journal: Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques, volume 11, pages 1,281-1,288 (issn: 1027-4510, eissn: 1819-7094, Copyright policy)
  • Publisher: Pleiades Publishing Ltd
  • Country: Netherlands
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 “gribbon 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 δm. We show numerically, how λ is converted to δ. Extension to δ = 20 δm is realistic.
Subjects
free text keywords: Surfaces, Coatings and Films, Larmor precession, Chemistry, Atomic physics, Radio frequency, Adiabatic process, Polarization (waves), Magnet, Beam (structure), Software, business.industry, business, SESANS setup, adiabatic/RF flippers

1. W. H. Bouwman, W. H. Kraan, and M. T. Rekveldt, Phys. B 267-68, 79-83 (1999).

2. Roger Pynn, M. R. Fitzsimmons, W. T. Lee, V. R. Shah, A. L. Washington, P. Stonaha, and Ken Littrell, J. Appl. Crystallogr. 41, 897-905 (2008).

3. M. Th. Rekveldt, J. Plomp, W. G. Bouwman, W. H. Kraan, S. V. Grigoriev, and M. Blaauw, Rev. Sci. Instrum. 76, 033901 (2005).

4. W. H. Kraan, V. N. Zabenkin, Yu. O. Chetverikov, M. Th. Rekveldt, C. P. Duif, and S. V. Grigoriev, Phys. B 397, 79-81 (2007).

5. A. A. Sumbatyan, V. N. Slusar, A. I. Okorokov, and H. Eckerlebe, Instrum. Exp. Tech. 52, 337 (2009).

6. W. H. Kraan, et al., J. Surf. Invest.: X-ray, Synchrotron Neutron Tech. 8 (5), 1035-1043 (2014).

7. W.H.Kraan@tudelft.nl.

8. O. Uca, W. H. Kraan, W. G. Bouwman, and M. T. Rekveldt, Phys. B 297 (1), 28-31 (2001).

9. A. Abragam, Principles of Nuclear Magnetism (Oxford Univ. Press, New York, 1961).

10. R. Gähler and R. Golub, J. Phys. (Paris) 49, 1195 (1988).

11. R. M. Dalgliesh, S. Langridge, J. Plomp, V. O. De Haan, and A. A. Van Well, Phys. B 406 (12), 2346- 2349 (2011).

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publication . Article . 2017

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

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