Radiation exposure and Mission Strategies 
for Interplanetary Manned Missions (REMSIM)

Cougnet, C.; Crosby, Norma; Eckersley, Steven; Foullon, Claire; Guarnieri, V.; Guatelli, Susanna; Heynderickx, D.; Holmes-Siedle, Andrew; Lobascio, Cesare; Masiello, S.; Nieminen, P.; Parisi, Gabriele; Parodi, Pier Camillo; Perino, Maria Antonietta; Pia, M.G.; Rampini, Riccardo; Спиллантини, П.; Tamburini, V.; Tracino, Emanuele

doi:10.1007/s11038-005-9014-1

Cited by 23 publications

(10 citation statements)

References 5 publications

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“…This physics list was a compilation of the physics lists from the N03, underground physics (Howard and Araujo, 2003), and radioprotection (Cougnet et al, 2004) examples included in the Geant4 toolkit. The latter (specifically, with the Bertini Cascade option) was used for hadronic interactions; low energy physics models were implemented for all particles.…”

Section: Methodsmentioning

confidence: 99%

A comparison of the measured responses of a tissue-equivalent proportional counter to high energy heavy (HZE) particles and those simulated using the Geant4 Monte Carlo code

Taddei

Zhao

Borak

2008

Radiation Measurements

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Monte Carlo simulations of heavy ion interactions using the Geant4 toolkit were compared with measurements of energy deposition in a spherical tissue-equivalent proportional counter (TEPC). A spherical cavity with a physical diameter of 12.7 mm was filled with propane-based tissue-equivalent gas surrounded by a wall of A-150 tissue-equivalent plastic that was 2.54 mm to thick. Measurements and Monte Carlo simulations were used to record the energy deposition and the trajectory of the incident particle on an event-by-event basis for ions ranging in atomic number from 2 ( 4 He) to 26 ( 56 Fe) and in energy from 200 MeV/nucleon to 1000 MeV/nucleon. In the simulations, tracking of secondary electrons was terminated when the range of an electron was below a specified threshold. The effects of range cuts for electrons at 0.5 μm, 1 μm, 10 μm, and 100 μm were evaluated. To simulate an energy deposition influenced by large numbers of low energy electrons with large transverse momentum, it was necessary to track electrons down to range cuts of 10 μm or less. The Geant4 simulated data closely matched the measured data acquired using a TEPC for incident particles traversing the center of the detector as well as near the gas-wall interface. Values of frequency mean lineal energy and dose mean lineal energy were within 8% of the measured data. The production of secondary particles in the aluminum vacuum chamber had no effect on the response of the TEPC for 56 Fe at 1000 MeV/nucleon. The results of this study confirm that Geant4 can simulate patterns of energy deposition for existing microdosimeters and is valuable for improving the design of a new generation of detectors used for space dosimetry and for characterizing particle beams used in hadron radiotherapy.

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Section: Methodsmentioning

confidence: 99%

A comparison of the measured responses of a tissue-equivalent proportional counter to high energy heavy (HZE) particles and those simulated using the Geant4 Monte Carlo code

Taddei

Zhao

Borak

2008

Radiation Measurements

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“…However, several materials have to be used in the construction of spacecrafts, exploration vehicles, and habitat modules (Piras et al 2006;Cougnet et al 2004). Kevlar and Nextel are widely used to protect human space infrastructures from meteoroids and debris impacts in low-Earth orbit, and form the basic elements of the MicroMeteoroids and Orbital Debris (MMOD) protection system Rampini et al 2003).…”

Section: Introductionmentioning

confidence: 99%

Accelerator-Based Tests of Radiation Shielding Properties of Materials Used in Human Space Infrastructures

Lobascio¹,

Briccarello²,

Destefanis³

et al. 2008

Health Physics

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Shielding is the only practical countermeasure for the exposure to cosmic radiation during space travel. It is well known that light, hydrogenated materials, such as water and polyethylene, provide the best shielding against space radiation. Kevlar and Nextel are two materials of great interest for spacecraft shielding because of their known ability to protect human space infrastructures from meteoroids and debris. We measured the response to simulated heavy-ion cosmic radiation of these shielding materials and compared it to polyethylene, Lucite (PMMA), and aluminum. As proxy to galactic nuclei we used 1 GeV n iron or titanium ions. Both physics and biology tests were performed. The results show that Kevlar, which is rich in carbon atoms (about 50% in number), is an excellent space radiation shielding material. Physics tests show that its effectiveness is close (80-90%) to that of polyethylene, and biology data suggest that it can reduce the chromosomal damage more efficiently than PMMA. Nextel is less efficient as a radiation shield, and the expected reduction on dose is roughly half that provided by the same mass of polyethylene. Both Kevlar and Nextel are more effective than aluminum in the attenuation of heavy-ion dose.

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“…This feature is extremely important for using superconducting magnets in space, because they can be maintained cool by cryocoolers or coolant recirculation at expenses of electric power, without relying on supplies of expendable coolants. As already pointed out in the Topical Team study organized by ESA in 2002-2004 [1] and in the ESA supported industrial study "REMSIM" [2], for large superconducting magnetic systems operated in space it is necessary to implement the Cryogen Free Superconducting Magnets (CFSM) concept [3], based on new superconducting materials operating at temperatures higher than LTS and cryocoolers or coolant recirculation powered by electricity. It is a simple concept, not easy to be implemented, potentially a bottleneck for using superconducting magnets in space.…”

Section: Continuous Toroidmentioning

confidence: 99%

Toroidal magnetic fields for protecting astronauts from ionizing radiation in long duration deep space missions

Papini¹,

Спиллантини²

2014

Acta Astronautica

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Radiation exposure and Mission Strategies for Interplanetary Manned Missions (REMSIM)

Cited by 23 publications

References 5 publications

A comparison of the measured responses of a tissue-equivalent proportional counter to high energy heavy (HZE) particles and those simulated using the Geant4 Monte Carlo code

A comparison of the measured responses of a tissue-equivalent proportional counter to high energy heavy (HZE) particles and those simulated using the Geant4 Monte Carlo code

Accelerator-Based Tests of Radiation Shielding Properties of Materials Used in Human Space Infrastructures

Toroidal magnetic fields for protecting astronauts from ionizing radiation in long duration deep space missions

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