Tailoring the energy resolution of MIRACLES, the time-of-flight – backscattering spectrometer at the ESS: An updated proposal for the chopper cascade
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Tailoring the energy resolution of MIRACLES, the time-of-flight – backscattering spectrometer at the ESS : An updated proposal for the chopper cascade. / Luna, Paula; Bordallo, Heloisa N.; Tsapatsaris, Nikolaos; Andersen, Ken H.; Herranz, Iñigo; Sordo, Fernando; Villacorta, Félix J.
In: Physica B: Condensed Matter, Vol. 564, 03.04.2019, p. 64-68.Research output: Contribution to journal › Conference article › Research › peer-review
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TY - GEN
T1 - Tailoring the energy resolution of MIRACLES, the time-of-flight – backscattering spectrometer at the ESS
T2 - An updated proposal for the chopper cascade
AU - Luna, Paula
AU - Bordallo, Heloisa N.
AU - Tsapatsaris, Nikolaos
AU - Andersen, Ken H.
AU - Herranz, Iñigo
AU - Sordo, Fernando
AU - Villacorta, Félix J.
PY - 2019/4/3
Y1 - 2019/4/3
N2 - A cost-effective chopper layout for the chopper cascade of MIRACLES, the time-of-flight backscattering spectrometer of the European Spallation Source is described. The main driving force is the capability to display a versatile and flexible selection of configuration modes, taking advantage of the long ESS pulse and tailoring the instrument resolution ad hoc, and covering a broad range of observation times from 10 ps to the ns. A key element for the design here presented is the feasibility to reach an energy resolution contribution from the incident neutron beam of ∼1.2 μeV, while keeping the same performance of MIRACLES conceptual design. The present optimized concept results in a well-balanced combination with the contribution from the secondary spectrometer time-of-flight energy resolution, yielding a total energy resolution of 2 μeV at best, and 2.5 μeV when the primary and secondary spectrometer contributions are matched.
AB - A cost-effective chopper layout for the chopper cascade of MIRACLES, the time-of-flight backscattering spectrometer of the European Spallation Source is described. The main driving force is the capability to display a versatile and flexible selection of configuration modes, taking advantage of the long ESS pulse and tailoring the instrument resolution ad hoc, and covering a broad range of observation times from 10 ps to the ns. A key element for the design here presented is the feasibility to reach an energy resolution contribution from the incident neutron beam of ∼1.2 μeV, while keeping the same performance of MIRACLES conceptual design. The present optimized concept results in a well-balanced combination with the contribution from the secondary spectrometer time-of-flight energy resolution, yielding a total energy resolution of 2 μeV at best, and 2.5 μeV when the primary and secondary spectrometer contributions are matched.
U2 - 10.1016/j.physb.2018.12.001
DO - 10.1016/j.physb.2018.12.001
M3 - Conference article
AN - SCOPUS:85064493770
VL - 564
SP - 64
EP - 68
JO - Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics
JF - Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics
SN - 0921-4526
ER -
ID: 217477930