J³ - A CubeSat for Radiation Testing : Science Requirements Derivation, Analysis of Radiation Environment and Simulation of Instrument Response
Plasma analyzers have been of exceptional importance to any interplanetary exploration mission since the beginning of the space age. They allow the investigation of various processes in the magetospheres or the solar wind. However, their operation also poses significant challenges, one of which is t...
Main Author: | |
---|---|
Format: | Bachelor Thesis |
Language: | English |
Published: |
2015
|
Subjects: | |
Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-42873 |
id |
ftluleatu:oai:DiVA.org:ltu-42873 |
---|---|
record_format |
openpolar |
spelling |
ftluleatu:oai:DiVA.org:ltu-42873 2023-05-15T17:04:20+02:00 J³ - A CubeSat for Radiation Testing : Science Requirements Derivation, Analysis of Radiation Environment and Simulation of Instrument Response Wolff, Friederike 2015 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-42873 eng eng http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-42873 Local 0d510321-2e3a-4bc0-b4cd-dbfa4b0d512d info:eu-repo/semantics/openAccess Technology GRAS Monte-Carlo Penetrating Radiation JUICE Simulation CubeSat J3 Anti-Coincidence Shield RATEX-J Teknik Student thesis info:eu-repo/semantics/bachelorThesis text 2015 ftluleatu 2022-10-25T20:52:48Z Plasma analyzers have been of exceptional importance to any interplanetary exploration mission since the beginning of the space age. They allow the investigation of various processes in the magetospheres or the solar wind. However, their operation also poses significant challenges, one of which is the presence of false counts due to penetrating radiation. Although (penetrating) radiation is known to pose problems to almost all spacecraft systems, plasma instruments that use time-of-flight chambers are particularly susceptible. This is of particular importance for missions to the Jovian system because Jupiter’s magnetosphere contains relativistic electrons in large quantities due to its exceptionally strong magnetic field. To mitigate such effects, several approaches are being investigated by IRF (Institutet f ̈or Rymdfysik) in Kiruna. Among these are the implementation of an anti-coincidence shield in one of the plasma analyzers for its contributions to ESA’s JUICE (Jupiter and Icy Moon Explorer) mission. Also, the response of MCPs (Micro-Channel-Plates) and CEMs (Channel Electron Multipliers), two particle detectors that will be used, to penetrating electrons shall be characterized. Verifying systems designed for the Jovian environment is difficult because it is not possible to replicate this environment on Earth. The electron accelerators that will be used during ground-based test produce fluxes of electrons that are significantly higher than those found in the Jovian environment. Therefore, such tests will be complemented by deploying an instrument containing the anti-coincidence system on the J3 CubeSat in an Earth-bound orbit to test its response to relativistic electrons within the Earth’s magnetosphere. This approach has limited applicability as well since the energy cut-off in Earth’s magnetosphere is much lower than in the Jovian environment, but presents a complementary solution to ground-based testing. The thesis will show that a radiation testing for the JUICE mission can be conducted in Low Earth ... Bachelor Thesis Kiruna Luleå University of Technology Publications (DiVA) Jupiter ENVELOPE(101.133,101.133,-66.117,-66.117) Kiruna |
institution |
Open Polar |
collection |
Luleå University of Technology Publications (DiVA) |
op_collection_id |
ftluleatu |
language |
English |
topic |
Technology GRAS Monte-Carlo Penetrating Radiation JUICE Simulation CubeSat J3 Anti-Coincidence Shield RATEX-J Teknik |
spellingShingle |
Technology GRAS Monte-Carlo Penetrating Radiation JUICE Simulation CubeSat J3 Anti-Coincidence Shield RATEX-J Teknik Wolff, Friederike J³ - A CubeSat for Radiation Testing : Science Requirements Derivation, Analysis of Radiation Environment and Simulation of Instrument Response |
topic_facet |
Technology GRAS Monte-Carlo Penetrating Radiation JUICE Simulation CubeSat J3 Anti-Coincidence Shield RATEX-J Teknik |
description |
Plasma analyzers have been of exceptional importance to any interplanetary exploration mission since the beginning of the space age. They allow the investigation of various processes in the magetospheres or the solar wind. However, their operation also poses significant challenges, one of which is the presence of false counts due to penetrating radiation. Although (penetrating) radiation is known to pose problems to almost all spacecraft systems, plasma instruments that use time-of-flight chambers are particularly susceptible. This is of particular importance for missions to the Jovian system because Jupiter’s magnetosphere contains relativistic electrons in large quantities due to its exceptionally strong magnetic field. To mitigate such effects, several approaches are being investigated by IRF (Institutet f ̈or Rymdfysik) in Kiruna. Among these are the implementation of an anti-coincidence shield in one of the plasma analyzers for its contributions to ESA’s JUICE (Jupiter and Icy Moon Explorer) mission. Also, the response of MCPs (Micro-Channel-Plates) and CEMs (Channel Electron Multipliers), two particle detectors that will be used, to penetrating electrons shall be characterized. Verifying systems designed for the Jovian environment is difficult because it is not possible to replicate this environment on Earth. The electron accelerators that will be used during ground-based test produce fluxes of electrons that are significantly higher than those found in the Jovian environment. Therefore, such tests will be complemented by deploying an instrument containing the anti-coincidence system on the J3 CubeSat in an Earth-bound orbit to test its response to relativistic electrons within the Earth’s magnetosphere. This approach has limited applicability as well since the energy cut-off in Earth’s magnetosphere is much lower than in the Jovian environment, but presents a complementary solution to ground-based testing. The thesis will show that a radiation testing for the JUICE mission can be conducted in Low Earth ... |
format |
Bachelor Thesis |
author |
Wolff, Friederike |
author_facet |
Wolff, Friederike |
author_sort |
Wolff, Friederike |
title |
J³ - A CubeSat for Radiation Testing : Science Requirements Derivation, Analysis of Radiation Environment and Simulation of Instrument Response |
title_short |
J³ - A CubeSat for Radiation Testing : Science Requirements Derivation, Analysis of Radiation Environment and Simulation of Instrument Response |
title_full |
J³ - A CubeSat for Radiation Testing : Science Requirements Derivation, Analysis of Radiation Environment and Simulation of Instrument Response |
title_fullStr |
J³ - A CubeSat for Radiation Testing : Science Requirements Derivation, Analysis of Radiation Environment and Simulation of Instrument Response |
title_full_unstemmed |
J³ - A CubeSat for Radiation Testing : Science Requirements Derivation, Analysis of Radiation Environment and Simulation of Instrument Response |
title_sort |
j³ - a cubesat for radiation testing : science requirements derivation, analysis of radiation environment and simulation of instrument response |
publishDate |
2015 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-42873 |
long_lat |
ENVELOPE(101.133,101.133,-66.117,-66.117) |
geographic |
Jupiter Kiruna |
geographic_facet |
Jupiter Kiruna |
genre |
Kiruna |
genre_facet |
Kiruna |
op_relation |
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-42873 Local 0d510321-2e3a-4bc0-b4cd-dbfa4b0d512d |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766058396529721344 |