本論文報告一套自行發展的數值分析方法，可對三維切片式螢光成像方法所得到的實驗成像獲取動態資訊。這套方法建基在光啟動動態過程的螢光成像分析理論架構。確切來說，此套方法完成影像品質優化、雜訊降低和數值分析配適碼，以決定CN(A 2Π)和He態至態非彈性碰撞的微分截面。不論是在分子束或流動槽環境的光啟動碰撞實驗，這些指令碼在獲取實驗成像的態至態動態學資訊是不可或缺的。

A numerical analysis scheme has been developed to extract dynamic information from experimental images by the three-dimensional sliced fluorescence imaging method. The present scheme is based on a generalized framework in analyzing fluorescence images from the photo-initiated dynamic process. Specifically, image quality optimization, noise reduction and numerical fitting codes have been implemented in the present scheme to determine differential cross sections of the state-to-state inelastic collisions between CN(A 2Π) and He. These codes are indispensable in extracting state-to-state dynamic information from experimental images in any photo-initiated collision experiment, no matter it is executed in the beam or bulb environment.

Abstract ii
Abstract (Chinese) iii
Content iv
List of figures vi
List of tables x
Chapter 1 Introduction 1
1-1 Backgrounds 1
1-2 Sliced fluorescence imaging 4
1-3 Three-dimensional sliced fluorescence imaging 6
Chapter 2 Experiment 10
Chapter 3 Image Smoothing 14
3-1 Noise reduction by a WinView/32 15
3-1-1 Background substraction 15
3-1-2 Reduction of background noises 18
3-2 Symmetrization 21
3-3 Noise reduction by the Microsoft Office Excel 24
3-3-1 Manual deletion of noisy pixels 24
3-3-2 Elimination of noisy pixels from the intensity 25
distributions along the x and y axes
Chapter 4 DCS Determination 30
4-1 Evaluation of the one-dimensional G(r; R1, R2) 32
4-2 Determining the expansion coefficients of the DCS 38
4-3 Determination of the differential cross section 47
4-4 Fine-tuning the R1 and R2 magnitudes 59
4-5 Variation of DCS by selecting various origins 67
Chapter 5 Conclusions 70
References 72

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