HCl, Arnar´s data, 1) INSTRUCTION concerning manipulation of 2D data to derive REMPI spectrum: 2) Rough 1st Analysis of Arnars data See: Agust, heima,....HCl massdata vhw.pxp Agust,www,...HCl-Arnar akvhw.ppt

INSTRUCTION concerning manipulation of 2D data to derive REMPI spectrum: To make rempi spectrum, using summed up intensities: 1)Make table, for example wave601 – wave100 2)Make a matrix with 0´s, for example: make/O/N=(500,400) rempi2=0 3)New Table for rempi2 4)Copy content of all waves (wave601 – wave1000) to matrix rempi2: -> CtrlA->CtrlC (in wave table) ->CtrlA->CtrlV (in matrix table) 5) Make data points positive: rempi2=-rempi2 6) Make contour plot: windows -> new-> Contour Plot...ZWave: rempi2, XWave: calculated, YWave: Wavenumber3 7) Remove 0´s and numbers from Contor plot: Graphs-> Modyfy contour appearance-> Labels (right) ->none-> Do it:

Expanded Cl+ and HCl+ region:

To obtain H35Cl spectrum: sum over points 316 – 321 (see figure above): Make matrix for 6 points (i.e ): make/O/N=(6,400) rempi2a=0 Edit rempi2a Copy lines for pnt = in rempi2 matrix Paste to rempi2a matrix Transpose (flip) rempi2a matrix: MatrixTranspose rempi2a Make wave equally long as the rempi2a (400) to contain the intensity sum: Make/N=400/D rempi2aa AppendToTable rempi2aa Summing up: rempi2aa=rempi2a[x][0]+rempi2a[x][1]+ rempi2a[x][2]+ rempi2a[x][3]+rempi2a[x][4]+ rempi2a[x][5] Display rempi2aa vs Wavenumbers3:

Waves H35Cl+

Waves H35Cl+

hv(LASER) Summed REMPI spectrum Pnts Waves H35Cl+

Waves

H35Cl Waves