@MastersThesis{Carmo:2023:AnMeSe,
author = "Carmo, Thiago Augusto do",
title = "An{\'a}lise e metodologia de sele{\c{c}}{\~a}o de blindagem dos
efeitos TID em projetos de sat{\'e}lites",
school = "Instituto Nacional de Pesquisas Espaciais (INPE)",
year = "2023",
address = "S{\~a}o Jos{\'e} dos Campos",
month = "2023-05-08",
keywords = "blindagem contra radia{\c{c}}{\~a}o, TID, simula{\c{c}}{\~a}o
SRIM, SPENVIS, OLTARIS, radiation shielding, TID, SRIM simulation,
SPENVIS, OLTARIS.",
abstract = "T{\~a}o importante quanto os demais componentes do sat{\'e}lite,
a blindagem desempenha um papel fundamental na
prote{\c{c}}{\~a}o dos componentes eletr{\^o}nicos. Ela atenua
a radia{\c{c}}{\~a}o {\`a} qual o equipamento ser{\'a} exposto
durante o per{\'{\i}}odo operacional em ambiente espacial. Este
estudo tem como objetivo analisar a blindagem contra
radia{\c{c}}{\~a}o e o efeito da Dose Ionizante Total (TID) em
projetos de sat{\'e}lite. Para a an{\'a}lise da blindagem, foram
obtidos dados por meio de simula{\c{c}}{\~a}o computacional,
utilizando o simulador SRIM. As ferramentas Stopping / Range Table
e TRIM Calculation foram usadas, e para medir a
radia{\c{c}}{\~a}o total em {\'o}rbita, adotaram-se os
simuladores SPENVIS e OLTARIS. Foi proposto um modelo de camada na
composi{\c{c}}{\~a}o da blindagem para obten{\c{c}}{\~a}o dos
dados relacionados a TID. Adotou-se o modelo esf{\'e}rico como
par{\^a}metro de simula{\c{c}}{\~a}o para ambas as plataformas.
Ap{\'o}s a simula{\c{c}}{\~a}o, os dados obtidos foram
comparados entre as blindagens e entre as ferramentas de
simula{\c{c}}{\~a}o. Com base no potencial de
penetra{\c{c}}{\~a}o da part{\'{\i}}cula, as camadas foram
estruturadas para compor uma espessura m{\'a}xima de 3 mm.
Destes, 1 mm era composto por T{\^a}ntalo (Ta), Tit{\^a}nio
(Ti), Tungst{\^e}nio (W), Magn{\'e}sio (Mg) e 2 mm de
Alum{\'{\i}}nio (Al). Os materiais mencionados comp{\~o}em
quatro diferentes blindagens. Cada uma foi submetida a
part{\'{\i}}culas com energia equivalente a 60 MeV, com
{\^a}ngulo de penetra{\c{c}}{\~a}o de 90°. As
composi{\c{c}}{\~o}es de blindagem que mostraram melhor
desempenho na absor{\c{c}}{\~a}o de radia{\c{c}}{\~a}o foram
as compostas por Ta e W. As demais n{\~a}o apresentaram
resultados expressivos para a frenagem de part{\'{\i}}culas
prim{\'a}rias, de modo que, o cen{\'a}rio se repete para a
capacidade de reduzir a absor{\c{c}}{\~a}o de
radia{\c{c}}{\~a}o em componentes eletr{\^o}nicos. Materiais
que tem o Z e densidade {{(\𝜌)}} elevada apresentam maior
absor{\c{c}}{\~a}o de radia{\c{c}}{\~a}o, como
consequ{\^e}ncia h{\'a} redu{\c{c}}{\~a}o dos efeitos TID.
ABSTRACT: As important as the other satellite components, the
shielding plays a crucial role in protecting electronic
components. It attenuates the radiation to which the equipment
will be exposed during the operational period in a space
environment. This study aims to analyze the radiation shielding
and the effect of the Total Ionizing Dose (TID) on satellite
projects. For the shielding analysis, data were obtained through
computer simulation, using the SRIM simulator. The Stopping /
Range Table and TRIM Calculation tools were used, and to measure
the total radiation in orbit, the SPENVIS and OLTARIS simulators
were adopted. A layer model was proposed in the composition of the
shielding to obtain data related to TID. A spherical model was
adopted as a simulation parameter for both platforms. After the
simulation, the obtained data were compared among the shields and
between the simulation tools. Based on the particle penetration
potential, the layers were structured to compose a maximum
thickness of 3 mm. Of these, 1 mm was composed of Tantalum (Ta),
Titanium (Ti), Tungsten (W), Magnesium (Mg) and 2 mm of Aluminum
(Al). The mentioned materials make up four different shields. Each
one was submitted to particles with energy equivalent to 60 MeV,
with a penetration angle of 90°. The shield compositions that
showed the best performance in radiation absorption were those
made up of Ta and W. The others did not present significant
results for the braking of primary particles, so the scenario
repeats for the ability to reduce radiation absorption in
electronic components. Materials with high Z (atomic number) and
density {{(\ρ)}} exhibit greater radiation absorption, which
consequently reduces TID effects.",
committee = "Rossi, Jos{\'e} Osvaldo (presidente) and Manea, Silvio
(orientador) and Brito, Al{\'{\i}}rio Cavalcanti de and
Federico, Claudio Antonio",
englishtitle = "Shield analysis against TID-type effects in satellite designs",
language = "pt",
pages = "60",
ibi = "8JMKD3MGP3W34T/49AR2TP",
url = "http://urlib.net/ibi/8JMKD3MGP3W34T/49AR2TP",
targetfile = "publicacao.pdf",
urlaccessdate = "09 maio 2024"
}