Constituent amorphous H2O | SSHADE

Experiment MIR spectra collected before and after irradiation experiments (with different ions at varying energy) of crystalline water ice at temperature from 20 K to 120 K

Sub-Experiment $Mg^7+$ E=105 keV

Sub-Experiment irradiation at T = 90 K - thickness = 161 nm

Spectrum MIR spectra of water ice (thickness = 161 nm) collected before irradiation with $Mg^7+$ (E = 105 keV) at T = 90 K Spectrum MIR spectra of water ice (thickness = 161 nm) collected after irradiation with $Mg^7+$ (E = 105 keV) at T = 90 K

Sub-Experiment irradiation at T = 90 K - thickness = 130 nm

Spectrum MIR spectra of water ice (thickness = 130 nm) collected before irradiation with $Mg^7+$ (E = 105 keV) at T = 90 K Spectrum MIR spectra of water ice (thickness = 130 nm) collected after irradiation with $Mg^7+$ (E = 105 keV) at T = 90 K

Sub-Experiment irradiation at T = 100 K - thickness = 190 nm

Spectrum MIR spectra of water ice (thickness = 190 nm) collected before irradiation with $Mg^7+$ (E = 105 keV) at T = 100 K Spectrum MIR spectra of water ice (thickness = 190 nm) collected after irradiation with $Mg^7+$ (E = 105 keV) at T = 100 K

Sub-Experiment irradiation at T = 100 K - thickness = 131 nm

Spectrum MIR spectra of water ice (thickness = 131 nm) collected before irradiation with $Mg^7+$ (E = 105 keV) at T = 100 K Spectrum MIR spectra of water ice (thickness = 131 nm) collected after irradiation with $Mg^7+$ (E = 105 keV) at T = 100 K

Sub-Experiment irradiation at T = 100 K - thickness = 69 nm

Spectrum MIR spectra of water ice (thickness = 69 nm) collected before irradiation with $Mg^7+$ (E = 105 keV) at T = 100 K Spectrum MIR spectra of water ice (thickness = 69 nm) collected after irradiation with $Mg^7+$ (E = 105 keV) at T = 100 K

Sub-Experiment irradiation at T = 110 K - thickness = 151 nm

Spectrum MIR spectra of water ice (thickness = 151 nm) collected before irradiation with $Mg^7+$ (E = 105 keV) at T = 110 K Spectrum MIR spectra of water ice (thickness = 151 nm) collected after irradiation with $Mg^7+$ (E = 105 keV) at T = 110 K

Sub-Experiment $Mg^5+$ E=56 keV

Sub-Experiment irradiation at T = 20 K - thickness = 78 nm

Spectrum MIR spectra of water ice (thickness = 78 nm) collected before irradiation with $Mg^5+$ (E = 56 keV) at T = 20 K Spectrum MIR spectra of water ice (thickness = 78 nm) collected after irradiation with $Mg^5+$ (E = 56 keV) at T = 20 K

Sub-Experiment irradiation at T = 40 K - thickness = 81 nm

Spectrum MIR spectra of water ice (thickness = 81 nm) collected before irradiation with $Mg^5+$ (E = 56 keV) at T = 40 K Spectrum MIR spectra of water ice (thickness = 81 nm) collected after irradiation with $Mg^5+$ (E = 56 keV) at T = 40 K

Sub-Experiment irradiation at T = 60 K - thickness = 74 nm

Spectrum MIR spectra of water ice (thickness = 74 nm) collected before irradiation with $Mg^5+$ (E = 56 keV) at T = 60 K Spectrum MIR spectra of water ice (thickness = 74 nm) collected after irradiation with $Mg^5+$ (E = 56 keV) at T = 60 K

Sub-Experiment irradiation at T = 80 K - thickness = 82 nm

Spectrum MIR spectra of water ice (thickness = 82 nm) collected before irradiation with $Mg^5+$ (E = 56 keV) at T = 80 K Spectrum MIR spectra of water ice (thickness = 82 nm) collected after irradiation with $Mg^5+$ (E = 56 keV) at T = 80 K

Sub-Experiment irradiation at T = 90 K - thickness = 82 nm

Spectrum MIR spectra of water ice (thickness = 82 nm) collected before irradiation with $Mg^5+$ (E = 56 keV) at T = 90 K Spectrum MIR spectra of water ice (thickness = 82 nm) collected after irradiation with $Mg^5+$ (E = 56 keV) at T = 90 K

Sub-Experiment irradiation at T = 100 K - thickness = 97 nm

Spectrum MIR spectra of water ice (thickness = 97 nm) collected before irradiation with $Mg^5+$ (E = 56 keV) at T = 100 K Spectrum MIR spectra of water ice (thickness = 97 nm) collected after irradiation with $Mg^5+$ (E = 56 keV) at T = 100 K

Sub-Experiment irradiation at T = 110 K - thickness = 89 nm

Spectrum MIR spectra of water ice (thickness = 89 nm) collected before irradiation with $Mg^5+$ (E = 56 keV) at T = 110 K Spectrum MIR spectra of water ice (thickness = 89 nm) collected after irradiation with $Mg^5+$ (E = 56 keV) at T = 110 K

Sub-Experiment $Mg^3+$ E=36 keV

Sub-Experiment irradiation at T = 20 K - thickness = 47 nm

Spectrum MIR spectra of water ice (thickness = 47 nm) collected before irradiation with $Mg^3+$ (E = 36 keV) at T = 20 K Spectrum MIR spectra of water ice (thickness = 47 nm) collected after irradiation with $Mg^3+$ (E = 36 keV) at T = 20 K

Sub-Experiment irradiation at T = 40 K - thickness = 55 nm

Spectrum MIR spectra of water ice (thickness = 55 nm) collected before irradiation with $Mg^3+$ (E = 36 keV) at T = 40 K Spectrum MIR spectra of water ice (thickness = 55 nm) collected after irradiation with $Mg^3+$ (E = 36 keV) at T = 40 K

Sub-Experiment irradiation at T = 90 K - thickness = 49 nm

Spectrum MIR spectra of water ice (thickness = 49 nm) collected before irradiation with $Mg^3+$ (E = 36 keV) at T = 90 K Spectrum MIR spectra of water ice (thickness = 49 nm) collected after irradiation with $Mg^3+$ (E = 36 keV) at T = 90 K

Sub-Experiment irradiation at T = 100 K - thickness = 49 nm

Spectrum MIR spectra of water ice (thickness = 53 nm) collected before irradiation with $Mg^3+$ (E = 36 keV) at T = 100 K Spectrum MIR spectra of water ice (thickness = 53 nm) collected after irradiation with $Mg^3+$ (E = 36 keV) at T = 100 K

Sub-Experiment irradiation at T = 110 K - thickness = 53 nm

Spectrum MIR spectra of water ice (thickness = 53 nm) collected before irradiation with $Mg^3+$ (E = 36 keV) at T = 110 K Spectrum MIR spectra of water ice (thickness = 53 nm) collected after irradiation with $Mg^3+$ (E = 36 keV) at T = 110 K

Sub-Experiment $S^7+$ E=126 keV

Sub-Experiment irradiation at T = 40 K - thickness = 101 nm

Spectrum MIR spectra of water ice (thickness = 101 nm) collected before irradiation with $S^7+$ (E = 126 keV) at T = 40 K Spectrum MIR spectra of water ice (thickness = 101 nm) collected after irradiation with $S^7+$ (E = 126 keV) at T = 40 K

Sub-Experiment irradiation at T = 90 K - thickness = 118 nm

Spectrum MIR spectra of water ice (thickness = 118 nm) collected before irradiation with $S^7+$ (E = 126 keV) at T = 90 K Spectrum MIR spectra of water ice (thickness = 118 nm) collected after irradiation with $S^7+$ (E = 126 keV) at T = 90 K

Sub-Experiment irradiation at T = 100 K - thickness = 113 nm

Spectrum MIR spectra of water ice (thickness = 113 nm) collected before irradiation with $S^7+$ (E = 126 keV) at T = 100 K Spectrum MIR spectra of water ice (thickness = 113 nm) collected after irradiation with $S^7+$ (E = 126 keV) at T = 100 K

Sub-Experiment irradiation at T = 110 K - thickness = 108 nm

Spectrum MIR spectra of water ice (thickness = 108 nm) collected before irradiation with $S^7+$ (E = 126 keV) at T = 110 K Spectrum MIR spectra of water ice (thickness = 108 nm) collected after irradiation with $S^7+$ (E = 126 keV) at T = 110 K

Sub-Experiment irradiation at T = 110 K - thickness = 112 nm

Spectrum MIR spectra of water ice (thickness = 112 nm) collected before irradiation with $S^7+$ (E = 126 keV) at T = 110 K Spectrum MIR spectra of water ice (thickness = 112 nm) collected after irradiation with $S^7+$ (E = 126 keV) at T = 110 K

Sub-Experiment irradiation at T = 120 K - thickness = 115 nm

Spectrum MIR spectra of water ice (thickness = 115 nm) collected before irradiation with $S^7+$ (E = 126 keV) at T = 120 K Spectrum MIR spectra of water ice (thickness = 115 nm) collected after irradiation with $S^7+$ (E = 126 keV) at T = 120 K

Sub-Experiment irradiation at T = 120 K - thickness = 111 nm

Spectrum MIR spectra of water ice (thickness = 111 nm) collected before irradiation with $S^7+$ (E = 126 keV) at T = 120 K Spectrum MIR spectra of water ice (thickness = 111 nm) collected after irradiation with $S^7+$ (E = 126 keV) at T = 120 K

Sub-Experiment $S^7+$ E=87 keV

Sub-Experiment irradiation at T = 90 K - thickness = 73 nm

Spectrum MIR spectra of water ice (thickness = 73 nm) collected before irradiation with $S^7+$ (E = 87 keV) at T = 90 K Spectrum MIR spectra of water ice (thickness = 73 nm) collected after irradiation with $S^7+$ (E = 87 keV) at T = 90 K

Sub-Experiment irradiation at T = 100 K - thickness = 56 nm

Spectrum MIR spectra of water ice (thickness = 56 nm) collected before irradiation with $S^7+$ (E = 87 keV) at T = 100 K Spectrum MIR spectra of water ice (thickness = 56 nm) collected after irradiation with $S^7+$ (E = 87 keV) at T = 100 K

Sub-Experiment irradiation at T = 110 K - thickness = 64 nm

Spectrum MIR spectra of water ice (thickness = 64 nm) collected before irradiation with $S^7+$ (E = 87 keV) at T = 110 K Spectrum MIR spectra of water ice (thickness = 64 nm) collected after irradiation with $S^7+$ (E = 87 keV) at T = 110 K

Sub-Experiment irradiation at T = 120 K - thickness = 58 nm

Spectrum MIR spectra of water ice (thickness = 58 nm) collected before irradiation with $S^7+$ (E = 87 keV) at T = 120 K Spectrum MIR spectra of water ice (thickness = 58 nm) collected after irradiation with $S^7+$ (E = 87 keV) at T = 120 K

Sub-Experiment $S^7+$ E=49 keV

Sub-Experiment irradiation at T = 90 K - thickness = 54 nm

Spectrum MIR spectra of water ice (thickness = 54 nm) collected before irradiation with $S^7+$ (E = 49 keV) at T = 90 K Spectrum MIR spectra of water ice (thickness = 54 nm) collected after irradiation with $S^7+$ (E = 49 keV) at T = 90 K

Sub-Experiment irradiation at T = 100 K - thickness = 44 nm

Spectrum MIR spectra of water ice (thickness = 44 nm) collected before irradiation with $S^7+$ (E = 49 keV) at T = 100 K Spectrum MIR spectra of water ice (thickness = 44 nm) collected after irradiation with $S^7+$ (E = 49 keV) at T = 100 K

Sub-Experiment irradiation at T = 110 K - thickness = 45 nm

Spectrum MIR spectra of water ice (thickness = 45 nm) collected before irradiation with $S^7+$ (E = 49 keV) at T = 110 K Spectrum MIR spectra of water ice (thickness = 45 nm) collected after irradiation with $S^7+$ (E = 49 keV) at T = 110 K

Sub-Experiment $O^6+$ E=108 keV

Sub-Experiment irradiation at T = 90 K - thickness = 177 nm

Spectrum MIR spectra of water ice (thickness = 177 nm) collected before irradiation with $O^6+$ (E = 108 keV) at T = 90 K Spectrum MIR spectra of water ice (thickness = 177 nm) collected after irradiation with $O^6+$ (E = 108 keV) at T = 90 K

Sub-Experiment irradiation at T = 100 K - thickness = 214 nm

Spectrum MIR spectra of water ice (thickness = 214 nm) collected before irradiation with $O^6+$ (E = 108 keV) at T = 100 K Spectrum MIR spectra of water ice (thickness = 214 nm) collected after irradiation with $O^6+$ (E = 108 keV) at T = 100 K

Sub-Experiment irradiation at T = 110 K - thickness = 173 nm

Spectrum MIR spectra of water ice (thickness = 173 nm) collected before irradiation with $O^6+$ (E = 108 keV) at T = 110 K Spectrum MIR spectra of water ice (thickness = 173 nm) collected after irradiation with $O^6+$ (E = 108 keV) at T = 110 K

Sub-Experiment irradiation at T = 120 K - thickness = 184 nm

Spectrum MIR spectra of water ice (thickness = 184 nm) collected before irradiation with $O^6+$ (E = 108 keV) at T = 120 K Spectrum MIR spectra of water ice (thickness = 184 nm) collected after irradiation with $O^6+$ (E = 108 keV) at T = 120 K

Sub-Experiment $O^6+$ E=80 keV

Sub-Experiment irradiation at T = 90 K - thickness = 146 nm

Spectrum MIR spectra of water ice (thickness = 146 nm) collected before irradiation with $O^6+$ (E = 80 keV) at T = 90 K Spectrum MIR spectra of water ice (thickness = 146 nm) collected after irradiation with $O^6+$ (E = 80 keV) at T = 90 K

Sub-Experiment irradiation at T = 90 K - thickness = 144 nm

Spectrum MIR spectra of water ice (thickness = 144 nm) collected before irradiation with $O^6+$ (E = 80 keV) at T = 90 K Spectrum MIR spectra of water ice (thickness = 144 nm) collected after irradiation with $O^6+$ (E = 80 keV) at T = 90 K

Sub-Experiment irradiation at T = 90 K - thickness = 115 nm

Spectrum MIR spectra of water ice (thickness = 115 nm) collected before irradiation with $O^6+$ (E = 80 keV) at T = 90 K Spectrum MIR spectra of water ice (thickness = 115 nm) collected after irradiation with $O^6+$ (E = 80 keV) at T = 90 K

Sub-Experiment irradiation at T = 100 K - thickness = 146 nm

Spectrum MIR spectra of water ice (thickness = 146 nm) collected before irradiation with $O^6+$ (E = 80 keV) at T = 100 K Spectrum MIR spectra of water ice (thickness = 146 nm) collected after irradiation with $O^6+$ (E = 80 keV) at T = 100 K

Sub-Experiment irradiation at T = 110 K - thickness = 137 nm

Spectrum MIR spectra of water ice (thickness = 137 nm) collected before irradiation with $O^6+$ (E = 80 keV) at T = 110 K Spectrum MIR spectra of water ice (thickness = 147 nm) collected after irradiation with $O^6+$ (E = 80 keV) at T = 120 K

Sub-Experiment irradiation at T = 120 K - thickness = 147 nm

Spectrum MIR spectra of water ice (thickness = 184 nm) collected before irradiation with $O^6+$ (E = 108 keV) at T = 120 K Spectrum MIR spectra of water ice (thickness = 184 nm) collected after irradiation with $O^6+$ (E = 108 keV) at T = 120 K

Sub-Experiment $O^6+$ E=50 keV

Sub-Experiment irradiation at T = 40 K - thickness = 84 nm

Spectrum MIR spectra of water ice (thickness = 84 nm) collected before irradiation with $O^6+$ (E = 50 keV) at T = 40 K Spectrum MIR spectra of water ice (thickness = 84 nm) collected after irradiation with $O^6+$ (E = 50 keV) at T = 40 K

Sub-Experiment irradiation at T = 40 K - thickness = 79 nm

Spectrum MIR spectra of water ice (thickness = 79 nm) collected before irradiation with $O^6+$ (E = 50 keV) at T = 40 K Spectrum MIR spectra of water ice (thickness = 79 nm) collected after irradiation with $O^6+$ (E = 50 keV) at T = 40 K

Sub-Experiment irradiation at T = 40 K - thickness = 96 nm

Spectrum MIR spectra of water ice (thickness = 96 nm) collected before irradiation with $O^6+$ (E = 50 keV) at T = 40 K Spectrum MIR spectra of water ice (thickness = 96 nm) collected after irradiation with $O^6+$ (E = 50 keV) at T = 40 K

Sub-Experiment irradiation at T = 90 K - thickness = 68 nm

Spectrum MIR spectra of water ice (thickness = 68 nm) collected before irradiation with $O^6+$ (E = 50 keV) at T = 90 K Spectrum MIR spectra of water ice (thickness = 68 nm) collected after irradiation with $O^6+$ (E = 50 keV) at T = 90 K

Sub-Experiment irradiation at T = 100 K - thickness = 99 nm

Spectrum MIR spectra of water ice (thickness = 99 nm) collected before irradiation with $O^6+$ (E = 50 keV) at T = 100 K Spectrum MIR spectra of water ice (thickness = 99 nm) collected after irradiation with $O^6+$ (E = 50 keV) at T = 100 K

Sub-Experiment irradiation at T = 110 K - thickness = 90 nm

Spectrum MIR spectra of water ice (thickness = 90 nm) collected before irradiation with $O^6+$ (E = 50 keV) at T = 110 K Spectrum MIR spectra of water ice (thickness = 90 nm) collected after irradiation with $O^6+$ (E = 50 keV) at T = 110 K

Constituent

Name: amorphous H2O
Official name: Low density amorphous water ice

Family: molecular solid
Class: hydrogen bonded molecular solid
Compound type: inorganic molecular solid
Comments: The initial crystalline H2O ice film was submitted to irradiation leading to amorphization. The density of the resulting amorphous water ice has not been determined.

Constituent abundance in material

Relevance: main - major
Arrangement: single phase
Mass fraction: 1.0
Mole fraction: 1.0 $\pm$ 0.0001
Abundance comments: potentially some remaining CO2, O2 and N2 in very low, but unestimated, abundances

Chemical composition

Formula: $H_2O$
Chemical formula: H2O
Elemental formula: H2 O
Isotope mixture type: terrestrial abundance

	Formula	Name	Family	Number min-max	Mole fraction	Isotope mole fraction	State	Relevance
	$H_2O$	Water	molecule	1	1.0	1.0	pure	main

Chemical functions and bonds

Chemical functions

	Function	Number	Relevance
	$R-OH$	2	main

Chemical bonds

	Bond	Number	Relevance
	$-O \dots H-$	4
	$-O-H$	2	main

Class: molecular solids with hydrogen bonded molecules (03)
Type: homomolecular H-bonded solids (03.01)
Group: H2O polymorphs (03.01.01)

Phase name: LDA water ice
Phase type: amorphous

Crystallography

Crystal system: amorphous
Crystal class: N/A
Comments: no non-hydrogen-bonded water molecules, except dangling bonds

Physical properties

Molar mass: 18.0153 $g/mol$
Density: 0.94 $g/cm^3$

Optical properties

Refringence type: isotropic
Refringence sign: no
Birefringence: 0
Color: colorless
Diaphaneity: transparent
Luster: vitreous