Dissociation mechanisms for the doubly-ionized DMDS (CH3-SS-CH3) molecule: use of a multivariate normal distribution method

29th International Conference on Photonic, Electronic, and Atomic Collisions

Varas, L.R.^1 ; Santos, A.C.F.^2 ; Coutinho, L.H.^2 ; De Souza, G.G.B.^1

Instituto de Química, Universidade Federal Do Rio de Janeiro, Cidade Universitária, Ilha Do Fundão, RJ, Rio de Janeiro

21949-900, Brazil^1

Instituto de Física, Universidade Federal Do Rio de Janeiro, Cidade Universitária, Ilha Do Fundão, RJ, Rio de Janeiro

21949-900, Brazil^2

关键词: Data spectrum;    Dimethyl disulfides;    Dissociation mechanisms;    Ionic dissociation;    Multi-variate normal distributions;    Multiple-coincidence;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/12/122004/pdf
DOI  :  10.1088/1742-6596/635/12/122004

来源: IOP

【 摘 要 】

The use of Multivariate Normal Distribution was used to represent the whole spectra as combination of parameters. Fragmentation and ionic dissociation of dimethyl disulfide (CH3SSCH3or DMDS) at 800 eV is studied for single and multiple coincidence. The proposed methodology allows to obtain dissociation parameters when there is an overlap of the ion-ion data spectrum.