To date, the BRISP spectrometer represents the state-of-the-art for every instrument aiming to perform Brillouin neutron scattering. Exploiting accurate ray-tracing McStas simulations, we investigate an improved configuration of the BRISP primary spectrometer to provide a higher flux at the sample position, while preserving all the present capabilities of the instrument. This configuration is based on a neutron guide system and is designed to fit the instrument platform with no modifications of the secondary spectrometer. These evaluations show that this setup can achieve a flux gain factor ranging from 3 to 6, depending on the wavelength. This can expand the experimental possibilities of BRISP towards smaller samples, possibly using also complex sample environments.
A high-flux upgrade for the BRISP spectrometer at ILL / Zanatta, M., Barocchi, F., De Francesco, A., Farhi, E., Formisano, F., Guarini, E., Laloni, A., Orecchini, A., Paciaroni, A., Petrillo, C., Pilgrim, W.-C., Suck, J.-B., Sacchetti, F.. - In: REVIEW OF SCIENTIFIC INSTRUMENTS. - ISSN 0034-6748. - STAMPA. - 88:5(2017), p. 053905. [10.1063/1.4983572]
A high-flux upgrade for the BRISP spectrometer at ILL
Zanatta M.;
2017-01-01
Abstract
To date, the BRISP spectrometer represents the state-of-the-art for every instrument aiming to perform Brillouin neutron scattering. Exploiting accurate ray-tracing McStas simulations, we investigate an improved configuration of the BRISP primary spectrometer to provide a higher flux at the sample position, while preserving all the present capabilities of the instrument. This configuration is based on a neutron guide system and is designed to fit the instrument platform with no modifications of the secondary spectrometer. These evaluations show that this setup can achieve a flux gain factor ranging from 3 to 6, depending on the wavelength. This can expand the experimental possibilities of BRISP towards smaller samples, possibly using also complex sample environments.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
