Spherical particles of salty H2O ice (10-100 µm typical particle diameter, 5 wt.% NaCl). After 2 keV electron irradiation (3.4 × 10^16 e- cm^(−2)). | BYPASS

Sample

Name: Spherical particles of salty H2O ice (10-100 µm typical particle diameter, 5 wt.% NaCl). After 2 keV electron irradiation (3.4 × 10^16 e- cm^(−2)).

Owner of sample

Database

BYPASS

Experimentalists

Rafael Ottersberg

Origin of sample

Date: 2024-07-01
Provider: Planetary Ice Laboratory, Space and Planetary Science division, Physics Institute, University of Bern
Previous sample: Spherical particles of salty H2O ice (10-100 µm typical particle diameter, 5 wt.% NaCl). Before electron irradiation.

Image

Sample made of spherical particles of salty H2O ice (10-100 µm typical particle diameter) frozen from a 5 wt.% Nacl solution. After 2 keV electron irradiation (3.4 × 10^16 e- cm^(−2)). The reflectance spectrum is collected over the outlined red Region of Interest.

Physical characteristics

Thickness: 10.0 $\pm$ 1.0 $mm$
Diameter: 40.0 $mm$
Surface roughness: smooth
Substrate material: Black anodised aluminum

Sample environment: Temperature

Temperature: 179.48 $\pm$ 4.0 $K$
Temperature max: 200.0 $\pm$ 50.0 $K$

Sample environment: Fluid

Type: vacuum
Fluid pressure: 5.5e-07 $\pm$ 1.0e-07 $mbar$
Comments: Residual pressure in the chamber from the equilibrium between water vapor produced by sublimation and active pumping

Sample environment: Irradiation

Source: electron gun
Chronology: before spectrum
Irradiation time: 10.0 $min$

Particle

Family: fundamental particles
Type: electrons
Energy: 2.0 $keV.particle^{-1}$
Particle fluence: 3.4e+16 $\pm$ 5000000000000000.0 $particle.m^{-2}$

Documentation and publication

Publications

Ottersberg et al., 2025, Icarus

Layers in sample

Number

Layers

Spherical particles of salty H2O ice (10-100 µm typical particle diameter, 5 wt.% NaCl). After 2 keV electron irradiation (3.4 × 10^16 e- cm^(−2)). , 10.0 $mm$

Sample processings