﻿This data is from our paper in Icarus: "A Possible Explanation for the Presence of Crystalline H2O-ice on Kuiper Belt Objects" 

Authors: M.J. Loeffler, P.D. Tribbett, J.F. Cooper, and S.J. Sturner 

The data files are for:

Figure 2 - Mid-infrared spectra of crystalline H2O (1.57 × 10^17 molecules cm-2) during irradiation with 1 keV electrons at 50 K. The curves have been
baseline corrected and displaced vertically for clarity.

	Figure 2 - IR_50K_1keV.txt: the columns are wavenumber (cm-1) and optical depth spectra after fluences (in units of 10^14 electrons cm-2): 0, 1.02, 3.10, 7.22, 12.8, 21.8, 41.0, and 323. 
		   The last two columns are an amorphous sample deposited at 50 K and one grown at 10 K and warmed to 50 K. 

Figure 3 - Reference spectra of amorphous H2O-ice in the near-infrared spectral region.

	Figure 3 - NIR reference.txt; the columns are wavenumber (cm-1), and optical depth spectra after depositing a 6.18 × 10^18 H2O cm-2 sample at 50 K (this is divided by 3.5 to compare with the other spectra), 
	after depositing a 1.16 × 10^18 H2O cm-2 sample at 10 K and taking spectra at 10 K, 50 K, and 70 K. The curves have been offset for clarity. 


Figure 4: Amorphous fraction during irradiation at 50 K with electrons of energies 1, 2, 5, and 10 keV.

	Figure 4 - 1 keV.txt; the columns are electron fluence (electrons cm-2), Absorbed dose (eV absorbed / H2O molecule), and amorphous fraction.

	Figure 4 - 2 keV.txt; the columns are electron fluence (electrons cm-2), Absorbed dose (eV absorbed / H2O molecule), and amorphous fraction.

	Figure 4 - 5 keV.txt; the columns are electron fluence (electrons cm-2), Absorbed dose (eV absorbed / H2O molecule), and amorphous fraction.

	Figure 4 - 10 keV.txt; the columns are electron fluence (electrons cm-2), Absorbed dose (eV absorbed / H2O molecule), and amorphous fraction.


Figure 5. Mid-infrared spectra of crystalline H2O (1.57 × 10^17 molecules cm-2) during irradiation with 1 keV electrons at 10, 70, 80 and 100 K. The curves have been
baseline corrected and displaced vertically for clarity.

	Figure 5 - 10 K.txt; the columns are wavenumber (cm-1) and optical depth spectra after fluences (in units of 10^14 electrons cm-2): 0, 0.45, 0.98, 1.93, 3.58, 6.52, 12.5, and 198. The last
	column is an amorphous sample deposited at 10 K.

	Figure 5 - 70 K.txt; the columns are wavenumber (cm-1) and optical depth spectra after fluences (in units of 10^14 electrons cm-2): 0, 1.2, 3.98, 8.96, 50.4, 125, 526, and 2030. The last
	column is an amorphous sample deposited at 10 K and warmed to 70 K.

	Figure 5 - 80 K.txt; the columns are wavenumber (cm-1) and optical depth spectra after fluences (in units of 10^14 electrons cm-2): 0, 1.04, 4.14, 9.95, 49.6, 106, 553, and 2320. The last
	column is an amorphous sample deposited at 10 K and warmed to 80 K.

	Figure 5 - 100 K.txt; the columns are wavenumber (cm-1) and optical depth spectra after fluences (in units of 10^14 electrons cm-2): 0, 1.19, 3.52, 10.4, 49.3, 132, 506, and 2130. The last
	column is an amorphous sample deposited at 10 K and warmed to 100 K.
 

Figure 6: Amorphous fraction during irradiation with 1 keV electrons at 10, 30, 50, 60, 65, 70, 75, 80, and 100 K. 

	Figure 6 - 10 K.txt; the columns are electron fluence (electrons cm-2) and amorphous fraction.
	
	Figure 6 - 30 K.txt; the columns are electron fluence (electrons cm-2) and amorphous fraction.

	Figure 6 - 50 K.txt; the columns are electron fluence (electrons cm-2) and amorphous fraction.

	Figure 6 - 60 K.txt; the columns are electron fluence (electrons cm-2) and amorphous fraction.

	Figure 6 - 65 K.txt; the columns are electron fluence (electrons cm-2) and amorphous fraction.

	Figure 6 - 70 K.txt; the columns are electron fluence (electrons cm-2) and amorphous fraction.

	Figure 6 - 75 K.txt; the columns are electron fluence (electrons cm-2) and amorphous fraction.

	Figure 6 - 80 K.txt; the columns are electron fluence (electrons cm-2) and amorphous fraction.

	Figure 6 - 100 K.txt; the columns are electron fluence (electrons cm-2) and amorphous fraction.

Figure 7: 10 keV electron irradiation of a 6.17 × 10^18 H2O cm-2 crystalline sample at 50 K. 

	Figure 7 - 10 keV Dose Curve.txt; the columns are dose (eV absorbed / H2O molecule) and amorphous fraction.

	Figure 7 - NIR spectra vs. Dose.txt; the columns are wavenumber (cm-1) and optical depth spectra after fluences (in units of 10^14 electrons cm-2): 0, 0.95, 2.61, 6.95, 28.0, 101, 341, 510 and 1590. 
		The last column is a reference spectrum of amorphous H2O deposited at 50 K. The curves have been baseline corrected and displaced vertically for clarity.  

Figure 9: Model flux estimates between 30 - 50 AU.   

	Figure 9 - Differential flux.txt; the columns are energy (MeV) and differential flux (protons cm-2 s^-1 sr^-1 MeV^-1).

	Figure 9 - Dosage_Time vs. depth.txt; the columns are surface depth (cm) and dosage time (years eV^-1 H2O^-1).

**These files are best read by importing them into microsoft excel, origin pro or an equilavent software.  The columns 
are delimited by tab. 