Advanced approach to the analysis of a series of in-situ nuclear forward scattering experiments

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• 作者：Vlastimil Vrba^a ; ^{vlastimil.vrba01@upol.cz} ; Ví ; t Prochá ; zka^a ; ^{v.prochazka@upol.cz} ; David Smrčka^a ; ^{david.smrcka@upol.cz} ; Marcel Miglierini^b ; ^c ; ^{marcel.miglierini@stuba.sk}
• 关键词：Nuclear forward scattering ; Data evaluation ; In-situ experiments ; Crystallization ; Chemical reaction
• 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：847
• 期：Complete
• 页码：111-116
• 全文大小：656 K
• 卷排序：847

文摘

This study introduces a sequential fitting procedure as a specific approach to nuclear forward scattering (NFS) data evaluation. Principles and usage of this advanced evaluation method are described in details and its utilization is demonstrated on NFS in-situ investigations of fast processes. Such experiments frequently consist of hundreds of time spectra which need to be evaluated. The introduced procedure allows the analysis of these experiments and significantly decreases the time needed for the data evaluation. The key contributions of the study are the sequential use of the output fitting parameters of a previous data set as the input parameters for the next data set and the model suitability crosscheck option of applying the procedure in ascending and descending directions of the data sets. Described fitting methodology is beneficial for checking of model validity and reliability of obtained results.