Fine-grained spherical particles of salty H2O ice (5 µm average diameter, 5 wt.% NaCl, Sample c). Second electron irradiation at 3 µA (5 keV). | BYPASS

Sample

Name: Fine-grained spherical particles of salty H2O ice (5 µm average diameter, 5 wt.% NaCl, Sample c). Second electron irradiation at 3 µA (5 keV).

Owner of sample

Database

BYPASS

Experimentalists

Romain Cerubini

Origin of sample

Date: 2020-06-18
Provider: Planetary Ice Laboratory, Space and Planetary Science division, Physics Institute, University of Bern
Previous sample: Fine-grained spherical particles of salty H2O ice (5 µm average diameter, 5 wt.% NaCl, Sample c). First electron irradiation at 3 µA (1 keV).

Image

Sample made of fine-grained spherical particles of salty H2O ice (SPIPA-A type, 5 µm average diameter) frozen from a 5 wt.% Nacl solution (Sample b). After second electron irradiation at 1 µA (5 keV). The VIS reflectance spectrum is collected over the outlined Region of Interest (red).

Physical characteristics

Thickness: 9.0 $\pm$ 1.0 $mm$
Diameter: 20.0 $mm$
Volume: 2830.0 $mm^3$
Surface roughness: smooth
Substrate material: Aluminum sample holder covered in black aluminum tape

Sample environment: Temperature

Temperature: 90.0 $\pm$ 15.0 $K$
Time at T: 2194.0 $\pm$ 600.0 $s$
Temperature max: 120.0 $K$

Sample environment: Fluid

Type: vacuum
Fluid temperature: 90.0 $\pm$ 15.0 $K$
Fluid pressure: 1.0e-08 $\pm$ 1.0e-09 $mbar$
Time at T, P, pH: 2194.0 $\pm$ 600.0 $s$

Sample environment: Irradiation

Source: electron gun
Chronology: before spectrum
Irradiation time: 15.0 $min$

Particle

Family: fundamental particles
Type: electrons
Energy: 5.0 $keV.particle^{-1}$
Particle fluence: 1.09e+17 $\pm$ 2200000000000000.0 $particle.m^{-2}$

Documentation and publication

Publications

Cerubini et al., 2022, Icarus, 379, 114977

Layers in sample

Number

Layers

Fine-grained spherical particles of salty H2O ice (5 µm average diameter, 5 wt.% NaCl, b). Second electron irradiation. , 20.0 $mm$

Sample processings