{"id":10789,"date":"2021-06-02T15:34:43","date_gmt":"2021-06-02T14:34:43","guid":{"rendered":"https:\/\/bis-space.com\/shop\/?post_type=product&#038;p=10789"},"modified":"2021-06-02T15:34:43","modified_gmt":"2021-06-02T14:34:43","slug":"survivability-of-metallic-shields-for-relativistic-spacecraft","status":"publish","type":"product","link":"https:\/\/bis-space.com\/shop\/product\/survivability-of-metallic-shields-for-relativistic-spacecraft\/","title":{"rendered":"Survivability of Metallic Shields for Relativistic Spacecraft"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<h3>J. Drobny et al. (2020),\u00a0<i>JBIS<\/i>,\u00a0<b>73<\/b>, pp.446-456<\/h3>\n<p><b>Refcode<\/b>: 2020.73.446<br \/>\n<b>Keywords<\/b>: Interstellar, Spacecraft, Damage, Implantation, ISM, Starlight, Starshot<\/p>\n<p><b>Abstract:<\/b><br \/>\nDirected energy propulsion of a spacecraft, such as that proposed by Breakthrough Starshot and NASA Starlight, necessarily exposes the spacecraft to MeV-energy collisions with particles in the interstellar medium (ISM). As a result, the spacecraft must be designed to be resilient to those collisions and the damaging effects they can have over long-duration interstellar missions. In this work, the effect of cumulative ISM gas implantation along the leading edge cross section of a standard relativistic spacecraft is discussed. Expected effects include bubble formation, blistering, and exfoliation due to slowly diffusing gas atoms implanted deep below the surface. As predicted by Bethe-Bloch stopping and numerical binary collision approximation (BCA) simulations, hydrogen and helium implant at similar depths, producing a mixed hydrogen- helium-material system similar to those observed in plasma-facing components (PFCs) in fusion reactors. A model of the stress exerted by the local gas concentration below the surface of a thin spacecraft and mission failure scenarios which require mitigation strategies are presented.<\/p>\n","protected":false},"featured_media":10791,"template":"","meta":[],"pwb-brand":[],"product_brand":[],"product_cat":[56,59,170],"product_tag":[3352,3579,488,2983,178,3580,2960],"class_list":["post-10789","product","type-product","status-publish","has-post-thumbnail","product_cat-journal-of-the-bis","product_cat-papers","product_cat-2020papers","product_tag-damage","product_tag-implantation","product_tag-interstellar","product_tag-ism","product_tag-spacecraft","product_tag-starlight","product_tag-starshot","first","instock","downloadable","virtual","purchasable","product-type-simple","czr-hentry"],"jetpack_sharing_enabled":true,"brands":[],"_links":{"self":[{"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product\/10789","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/media\/10791"}],"wp:attachment":[{"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/media?parent=10789"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/pwb-brand?post=10789"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product_brand?post=10789"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product_cat?post=10789"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product_tag?post=10789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}