﻿This data is from our paper published in the Astrophysical Journal: "Compaction of Microporous H2O-ice via Energetic Electrons" 

Authors: P.R. Behr, P.D. Tribbett, T.D. Robinson, and M.J. Loeffler 

The data files are for:

Figure 1 - IR spectra of the DB absorption bands for a 1.68 x 10^18 H2O cm^-2 sample as a function of temperature and growth conditions

	Figure 1.txt: the columns are wavenumber (cm^-1) and the next five columns are optical depth spectra for films after growth with the doser at an incident angle of 55 degrees at 90 K, 70 K, 50 K, 30 K, and 10 K. 
	The Last two columns are for films background deposited at 30 K with the radiation shield installed, and background deposited at 30 K with the radiation shield removed. 
		   

Figure 2 - IR spectra of the DB absorption bands for a 1.68 x 10^18 H2O cm^-2 sample during irradiation with 5 keV electrons at 50 K

	Figure 2.txt: the columns are wavenumber (cm-1) and optical depth spectra after fluences (in units of 10^14 electrons cm-2): 0, 0.25, 2.1, 3.7, 9.8, 26.6, and 109. 
		   
*Figure 3 - Normalized DB band area for a 1.68 x 10^18 H2O cm^-2 sample during irradiation with 5 keV electrons as a function of electron fluence and temperature

        Figure 3 - 10 K.txt: the columns are electron fluence (electrons cm^-2), DB1 (3720 cm^-1) normalized band area, DB2 (3696 cm^-1), and the total DB normalized band area. 
        Figure 3 - 30 K.txt: the columns are electron fluence (electrons cm^-2), DB1 (3720 cm^-1) normalized band area, DB2 (3696 cm^-1), and the total DB normalized band area. 
        Figure 3 - 50 K.txt: the columns are electron fluence (electrons cm^-2) and the total DB normalized band area. 
        Figure 3 - 70 K.txt: the columns are electron fluence (electrons cm^-2) and the total DB normalized band area.
        Figure 3 - 90 K.txt: the columns are electron fluence (electrons cm^-2) and the total DB normalized band area. 
 
Figure 4: Uv-visible reflectance and model fits for a 1.68 x 10^18 H2O cm^-2 sample before and after irradiation with 5 keV electrons at 30 K

	Figure 4 - before irradiation.txt: the columns are wavelength (nm), laboratory reflectance data, and the best model fit to the laboratory data.

	Figure 4 - after irradiation.txt: the columns are wavelength (nm), laboratory reflectance data, and the best model fit to the laboratory data.


Figure 5. Comparison of the DB band area and the porosity for a 1.68 x 10^18 H2O cm^-2 during irradiation with 5 keV electrons at 30 K

	*Figure 5 - DB band area.txt: the columns are electron fluence (electrons cm^-2) and the total DB normalized band area.

	Figure 5 - porosity.txt; the columns are electron fluence (electrons cm^-2) and the sample porosity.

*There are two values for zero fluence.  This is from our measurements from two separate spectra taken before irradiation.  The spectra look fairly identical, so this gives a reasonable 
estimate of our systemic error involved in our baseline subtraction. 
	
**These files are best read by importing them into microsoft excel, origin pro or an equilavent software.  The columns 
are delimited by tab. 