New radiation environment and effects models in the European Space Agency's Space Environment Information System (SPENVIS)

Space Weather ◽  
2004 ◽  
Vol 2 (10) ◽  
pp. n/a-n/a ◽  
Author(s):  
D. Heynderickx ◽  
B. Quaghebeur ◽  
J. Wera ◽  
E. J. Daly ◽  
H. D. R. Evans
Keyword(s):  
Information System ◽  
Space Environment ◽  
Radiation Environment

Space Environment Information System for Mission Control Purposes: Benefits for INTEGRAL Operations

2006 ◽  
Author(s):  
Marta Pantoquilho ◽  
Alexander Baumgartner ◽  
Federico Di Marco ◽  
Alessandro Donati
Keyword(s):  
Information System ◽  
Space Environment ◽  
Mission Control

Research on Visualization of Spatial Data and Symbols Based on ArcGIS

2012 ◽  
Vol 241-244 ◽  
pp. 3107-3111
Author(s):  
Xu Dan Sun
Keyword(s):  
Information System ◽  
Geographical Information System ◽  
Spatial Data ◽  
Geographical Information ◽  
Space Environment ◽  
Point Line

To the problem of visualization expression, under the ArcGIS space environment, I use the ArcObjects components to do the symbols allocation and visualization expression for spatial data and point, line and polygon target. Result shows that it has finished the visualization effect of spatial data and symbols in the geographical information system.

scholarly journals A Study on the Performance of a Silicon Photodiode Sensor for a Particle Dosimeter and Spectrometer

Sensors ◽  
2021 ◽  
Vol 21 (23) ◽  
pp. 8029
Author(s):  
Bobae Kim ◽  
Uk-Won Nam ◽  
Sunghwan Kim ◽  
Sukwon Youn ◽  
Won-Kee Park ◽  
...  
Keyword(s):  
Effective Area ◽  
Space Environment ◽  
Radiation Environment ◽  
Neutron Spectrometer ◽  
Silicon Photodiode ◽  
Analog To Digital ◽  
Tissue Equivalent ◽  
Silicon Sensors ◽  
Wide Range ◽  
Signal Readout

A lunar vehicle radiation dosimeter (LVRAD) has been proposed for studying the radiation environment on the lunar surface and evaluating its impact on human health. The LVRAD payload comprises four systems: a particle dosimeter and spectrometer (PDS), a tissue-equivalent dosimeter, a fast neutron spectrometer, and an epithermal neutron spectrometer. A silicon photodiode sensor with compact readout electronics was proposed for the PDS. The PDS system aims to measure protons with 10–100 MeV of energy and assess dose in the lunar space environment. The manufactured silicon photodiode sensor has an effective area of 20 mm × 20 mm and thickness of 650 μm; the electronics consist of an amplifier, analog pulse processor, and a 12-bit analog-to-digital converter for signal readout. We studied the responses of silicon sensors which were manufactured with self-made electronics to gamma rays with a wide range of energies and proton beams.

SEISOP: Space Environment Information System to Support Satellites Operations

2008 ◽  
Author(s):  
Federico Di Marco ◽  
Alessandro Donati ◽  
Marta Pantoquillo ◽  
Alexander Baumgartner ◽  
D. Ponz
Keyword(s):  
Information System ◽  
Space Environment

Investigating Effect of Space Radiation Environment on Piezoelectric Sensors: Cobalt-60 Irradiation Experiment

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Mary Anderson ◽  
Andrei N. Zagrai ◽  
Joshua D. Daniel ◽  
David J. Westpfahl ◽  
Dale Henneke
Keyword(s):  
Gamma Radiation ◽  
Radiation Exposure ◽  
Piezoelectric Ceramic ◽  
Structural Damage ◽  
Space Radiation ◽  
Low Earth Orbit ◽  
Space Environment ◽  
Piezoelectric Sensors ◽  
Radiation Environment ◽  
Space Radiation Environment

Piezoelectric sensors are used in many structural health monitoring (SHM) methods to interrogate the condition of the structure to which the sensors are affixed or embedded. Among SHM methods utilizing thin wafer piezoelectric sensors, embedded ultrasonics is seen as a promising approach to assess condition of space structures. If SHM is to be implemented in space vehicles, it is imperative to determine the effects of the extreme space environment on piezoelectric sensors in order to discern between actual structural damage and environmental effects. The near-Earth space environment comprises extreme temperatures, vacuum, atomic oxygen, microgravity, micrometeoroids and debris, and significant amounts of radiation. Gamma radiation can be used to emulate the space radiation environment. In this contribution, the effects of gamma radiation on piezoelectric ceramic sensors are investigated for equivalent gamma radiation exposure of more than a year on low Earth orbit (LEO). Two experiments were conducted in which cobalt-60 was utilized as the source of radiation. Freely supported piezoelectric sensors were exposed to increasing levels of gamma radiation. Impedance data were collected for the sensors after each radiation exposure. The results show that piezoelectric ceramic material is affected by gamma radiation. Over the course of increasing exposure levels to cobalt-60, the impedance frequencies of the free sensors increased with each absorbed dose. The authors propose that the mechanism causing these impedance changes is due to gamma rays affecting piezoelectric, electric, and elastic constants of the piezoelectric ceramic. A theoretical model describing observed effects is presented.

Last upgrades and development of the space environment information system (SPENVIS)

2009 ◽  
Author(s):  
Michel Kruglanski ◽  
Neophytos Messios ◽  
Erwin De Donder ◽  
Emmanuel Gamby ◽  
Stijn Calders ◽  
...  
Keyword(s):  
Information System ◽  
Space Environment

Effects of Extreme Radiation Environment on Composite Materials

2006 ◽  
Vol 929 ◽  
Author(s):  
J. Zhou ◽  
Jerrel Moore ◽  
Vernon Calvin ◽  
Richard Wilkins ◽  
Sofia Martinez Vilarino ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Space Radiation ◽  
Radiation Shielding ◽  
Space Environment ◽  
Radiation Environment ◽  
Mechanical And Thermal Properties ◽  
Shielding Effectiveness ◽  
Potential Applications ◽  
Effects Of Radiation ◽  
Effective Radiation

ABSTRACTFuture manned space travel will go beyond the Lower Earth Orbit into deep space exploration and providing protection from space radiation is a major challenge. It is essential to study the effects of the space environment on materials to ensure safe and successful missions.This paper summarized the studies of two materials, in-site regolith composites and LTM 45 composites, for potential applications in space radiation environments. The effects of radiation on the mechanical and thermal properties of the composites were investigated. The radiation shielding effectiveness of in-situ composites and low temperature molding materials was analyzed. The work was part of the efforts in study and development of the multifunctiaonal materials for long-term radiation exposures to ensure effective radiation shielding and maintaining integrity of materials' mechanical and thermal properties for future space missions.

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