sigma_100eV # Total ionization cross sections in Ang^2 and at 100 eV incident electron energy
# From NIST: http://physics.nist.gov/PhysRefData/Ionization/molTable.html
	H2 = 0.969
	O2 = 2.621
	N2 = 2.615
	CO = 2.616
	H2O = 2.348
	CH4 = 3.419
	C2H4 = 4.974
	C2H6 = 6.207
	CO2 = 3.735
# from Ali and Kim,  http://onlinelibrary.wiley.com/doi/10.1002/sia.2090/pdf 
	Cl2 = 6.2 
# From Krichnakumar et al, Ionisation cross sections of rare-gas atoms by electron impact, JPB, 1987
# http://iopscience.iop.org/article/10.1088/0953-4075/21/6/014/pdf
	He = 0.370 
	Ar = 2.982
# from Rejoub et al 2003, http://aip.scitation.org/doi/pdf/10.1063/1.1531631
	ethanol = 7.8
	methanol = 5.2 # Yogesh Kumar et al, 2019, Atoms. The Electron Impact Ionization Cross Sections of Methanol, Ethanol and 1-Propanol.


#From NIST: http://webbook.nist.gov/chemistry/form-ser.html
Spectra
	Ar: 20,1462 36,30 38,5 40,9999
	He: 4,9999 #implied
	H2: 1,210 2,9999
	O2: 16,2180 32,9999
	N2: 14,1379 28,9999 29,74
	CO: 12,470 16,170 28,9999 29,120
	CO2: 12,871 16,961 22,190 28,981 29,10 44,9999 45,120 46,40
	H2O: 16,90 17,2122 18,9999 19,50 20,30
	CH4: 12,380 13,1069 14,2042 15,8879 16,9999 17,164s
	C2H4: 2,10 12,50 13,90 14,210 15,30 24,230 25,781 26,5295 27,6236 28,9999 29,230 30,10
	C2H6: 2,20 12,40 13,100 14,300 15,440 16,10 24,50 25,350 26,2322 27,3323 28,9999 29,2152 30,2622 31,50
	Cl2: 35,8287 37,2642 70,9999 72,6385 74,1020
	ethanol: 12,20 13,139 14,145 15,664 17,70 18,55 19,279 24,61 25,246 26,985 27,2241 28,345 29,2985 30,812 31,9999 33,31 41,137 42,474 43,1144 44,71 45,5149 46,2163 47,73
	propene: 1,320 2,40 12,90 13,140 14,340 15,550 16,20 19,220 20,180 21,10 24,30 25,180 26,1051 27,3873 28,140 36,180 37,1271 38,1942 39,7257 40,2913 41,9999 42,7036 43,230 44,10
	propane: 12,30 13,60 14,220 15,721 16,40 19,70 20,80 21,10 24,10 25,50 26,911 27,4194 28,5875 29,9999 30,220 36,30 37,300 38,530 39,1892 40,280 41,1341 42,601 43,2312 44,2742 45,90
	methanol: 2,30 12,20 13,60 14,169 15,1239 16,10 17,30 18,70 19,10 28,459 29,4459 30,649 31,9999 32,7439 33,119 34,10
	












