{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:U62RMI5H4OUPRQ7LGZSKLLFZYF","short_pith_number":"pith:U62RMI5H","schema_version":"1.0","canonical_sha256":"a7b51623a7e3a8f8c3eb3664a5acb9c178a204feb5b4a99b1caf9b95ad828633","source":{"kind":"arxiv","id":"1503.06180","version":1},"attestation_state":"computed","paper":{"title":"Spectral modification of shock accelerated ions using hydrodynamically shaped gas target","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"C. Maharjan, I. Pogorelsky, M. N. Polyanskiy, N. Cook, N. P. Dover, O. Tresca, P. Shkolnikov, Z. Najmudin","submitted_at":"2015-03-20T17:55:13Z","abstract_excerpt":"We report on reproducible shock acceleration from irradiation of a $\\lambda = 10$ $\\mu$m CO$_2$ laser on optically shaped H$_2$ and He gas targets. A low energy laser prepulse ($I\\lesssim10^{14}\\, {\\rm Wcm^{-2}}$) was used to drive a blast wave inside the gas target, creating a steepened, variable density gradient. This was followed, after 25 ns, by a high intensity laser pulse ($I>10^{16}\\, {\\rm Wcm^{-2}}$) that produces an electrostatic collisionless shock. Upstream ions were accelerated for a narrow range of prepulse energies ($> 110$ mJ & $< 220$mJ). For long density gradients ($\\gtrsim 40"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1503.06180","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2015-03-20T17:55:13Z","cross_cats_sorted":[],"title_canon_sha256":"780de3fdd5ea6d30f6f7fee51b0239f00f34eaabadb7799b85c4c08f66adabf5","abstract_canon_sha256":"81191b0dc02824ece90506ea7f322f497a7ed43de5ec85c2d076259c85d285d0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:34:24.071434Z","signature_b64":"EXl7et3SXx933u8EwCpVaBeL7Ia+lMcZUDCvK6TFKjOnX5pzWurPqRdpFCPz1I6icSeXvH9f5cKffv+NMyZjBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a7b51623a7e3a8f8c3eb3664a5acb9c178a204feb5b4a99b1caf9b95ad828633","last_reissued_at":"2026-05-18T01:34:24.070875Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:34:24.070875Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Spectral modification of shock accelerated ions using hydrodynamically shaped gas target","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"C. Maharjan, I. Pogorelsky, M. N. Polyanskiy, N. Cook, N. P. Dover, O. Tresca, P. Shkolnikov, Z. Najmudin","submitted_at":"2015-03-20T17:55:13Z","abstract_excerpt":"We report on reproducible shock acceleration from irradiation of a $\\lambda = 10$ $\\mu$m CO$_2$ laser on optically shaped H$_2$ and He gas targets. A low energy laser prepulse ($I\\lesssim10^{14}\\, {\\rm Wcm^{-2}}$) was used to drive a blast wave inside the gas target, creating a steepened, variable density gradient. This was followed, after 25 ns, by a high intensity laser pulse ($I>10^{16}\\, {\\rm Wcm^{-2}}$) that produces an electrostatic collisionless shock. Upstream ions were accelerated for a narrow range of prepulse energies ($> 110$ mJ & $< 220$mJ). For long density gradients ($\\gtrsim 40"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.06180","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1503.06180","created_at":"2026-05-18T01:34:24.070979+00:00"},{"alias_kind":"arxiv_version","alias_value":"1503.06180v1","created_at":"2026-05-18T01:34:24.070979+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.06180","created_at":"2026-05-18T01:34:24.070979+00:00"},{"alias_kind":"pith_short_12","alias_value":"U62RMI5H4OUP","created_at":"2026-05-18T12:29:44.643036+00:00"},{"alias_kind":"pith_short_16","alias_value":"U62RMI5H4OUPRQ7L","created_at":"2026-05-18T12:29:44.643036+00:00"},{"alias_kind":"pith_short_8","alias_value":"U62RMI5H","created_at":"2026-05-18T12:29:44.643036+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/U62RMI5H4OUPRQ7LGZSKLLFZYF","json":"https://pith.science/pith/U62RMI5H4OUPRQ7LGZSKLLFZYF.json","graph_json":"https://pith.science/api/pith-number/U62RMI5H4OUPRQ7LGZSKLLFZYF/graph.json","events_json":"https://pith.science/api/pith-number/U62RMI5H4OUPRQ7LGZSKLLFZYF/events.json","paper":"https://pith.science/paper/U62RMI5H"},"agent_actions":{"view_html":"https://pith.science/pith/U62RMI5H4OUPRQ7LGZSKLLFZYF","download_json":"https://pith.science/pith/U62RMI5H4OUPRQ7LGZSKLLFZYF.json","view_paper":"https://pith.science/paper/U62RMI5H","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1503.06180&json=true","fetch_graph":"https://pith.science/api/pith-number/U62RMI5H4OUPRQ7LGZSKLLFZYF/graph.json","fetch_events":"https://pith.science/api/pith-number/U62RMI5H4OUPRQ7LGZSKLLFZYF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/U62RMI5H4OUPRQ7LGZSKLLFZYF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/U62RMI5H4OUPRQ7LGZSKLLFZYF/action/storage_attestation","attest_author":"https://pith.science/pith/U62RMI5H4OUPRQ7LGZSKLLFZYF/action/author_attestation","sign_citation":"https://pith.science/pith/U62RMI5H4OUPRQ7LGZSKLLFZYF/action/citation_signature","submit_replication":"https://pith.science/pith/U62RMI5H4OUPRQ7LGZSKLLFZYF/action/replication_record"}},"created_at":"2026-05-18T01:34:24.070979+00:00","updated_at":"2026-05-18T01:34:24.070979+00:00"}