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Instrumental resolution of the chopper spectrometer 4SEASONS evaluated by Monte Carlo simulation

モンテカルロシミュレーションによるチョッパー分光器4SEASONSの分解能

梶本 亮一 ; 佐藤 研太朗*; 稲村 泰弘; 藤田 全基*

Kajimoto, Ryoichi; Sato, Kentaro*; Inamura, Yasuhiro; Fujita, Masaki*

We performed simulations of the resolution function of the 4SEASONS spectrometer at J-PARC by using the Monte Carlo simulation package McStas. The simulations showed reasonably good agreement with analytical calculations of energy and momentum resolutions by using a simplified description. We implemented new functionalities in Utsusemi, the standard data analysis tool used in 4SEASONS, to enable visualization of the simulated resolution function and predict its shape for specific experimental configurations.

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