RT Conference Proceedings
T1 Stand-off Spectroscopies Under Controlled Atmospheric and Temperature Planetary Conditions Using a Multipurpose Thermal Vacuum Chamber
A1 Lucena Navarro, Patricia
A1 Moros-Portolés, Javier
A1 García-Gómez, Laura
A1 Delgado-Pérez, Tomás
A1 Cabalín-Robles, Luisa María
A1 Fortes-Román, Francisco Javier
A1 Vadillo-Pérez, José Miguel
K1 Espectroscopia - Congresos
AB The availability of thermal vacuum chambers (TVAC) represents a need in today´s planetary research. A TVAC must be capable of operate under representative conditions (temperature, gas composition, pressure, radiation flux …) of space exploration targets but also have a useful volume compatible with the performing experiments and the testing of equipment under mimicked scenarios.This abstract detail the TVAC designed and installed at UMALASERLAB to serve the astrochemical community. With a length of 12 meters and a useful internal diameter of 1.6 meters, the chamber operates in a temperature range between 200 K - 400 K and can be oil-free pumped down from atmospheric pressure to 10-4 mbar in the current configuration. Additional upgrades may extend the pressure range up to the 10-6 mbar range. Such figures and dimensions turn the TVAC of UMALASERLAB a powerful and versatile tool for space-related studies in chemistry, biology and engineering. The internal surface of the TVAC is black painted with a special enamel to improve the thermal emission of the surface itself and maximize light absorption (> 95 % at any angle) to reduce flares and ghost effects in the recorded spectra. For experiments demanding deep UV illumination, a high-power Xe lamp provides illumination conditions similar to those at Mars surface in the UV-A, UV-B and UV-C spectral regions over a diameter of 50 cm in the geometrical center of the TVC. A graphic user interface allows local and remote visualization, control and data logging of the vacuum pumps, the cooling/heating system, the pressure gauges, the thermocouple gauges, and the mass flow controllers for gas mix load in the chamber.Different experiments performed inside the TVAC will be described including laser-induced breakdown spectrometry (LIBS), laser-induced plasma acoustic (LIPAC) and thermal imaging monitoring.
YR 2026
FD 2026
LK https://hdl.handle.net/10630/45233
UL https://hdl.handle.net/10630/45233
LA eng
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 27 feb 2026