Validation of the Electromagnetic Physical Processes with Software SPENVIS

The Space Radiation represents a serious risk for astronauts during space missions. The risk related to the space radiation exposure could involve acute and/or late effects. The Solar Cosmic Radiation that consists of protons (≈98%) with a very wide spectrum in energy (up to several GeV), is the major source of exposure for the crew. In this paper we present the results of the validation of the electromagnetic physical processes with the aim to contribute to the study of radiation protection for astronauts, in particular against the radiation due to the Solar Particle Events (SPE). The simulation was performed using MULASSIS, a module to the software SPENVIS, with protons as source, in the energy range from 800 MeV to 1.2 GeV, on a slab of aluminum of mass thickness of 20 g/cm2. The results obtained by the simulation were compared with PSTAR database of the NIST. Finally, a comparison between SPENVIS and Geant4-9.6p2 was performed

Trends and outcomes of optical coherence tomography use: 877 patients single-center experience

Optical-coherence-tomography (OCT) is an emerging invasive coronary imaging with still undefined clinical value. Recent data have underlined daily impact of such technique in several clinical settings such as acute coronary syndromes (ACS) and percutaneous coronary intervention (PCI) guidance. We aimed at assessing the trends and outcomes of OCT use in a high-volume percutaneous coronary interventions (PCI)-center

Mini IRENE - Deployable Heat Shield For Suborbital Flight Test

MINI Irene is the Flight Demonstrator of IRENE, a new-concept capsule with a variable geometry, originally conceived by ASI to widen the range of available platforms to retrieve payloads and/or data from low Earth orbit. This paper, after a short introduction of the patented IRENE deployable heat shield concept and benefits, shows the ongoing activities that will lead to the sub-orbital flight. The description is focused on the structural activities, both numerical and experimental), and on the avionic systems