{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:LDTYMJGY3PBXD5O3BZSBXQXBIF","short_pith_number":"pith:LDTYMJGY","schema_version":"1.0","canonical_sha256":"58e78624d8dbc371f5db0e641bc2e1414a74ea18abb58ae5aa0dd8f17fe83c76","source":{"kind":"arxiv","id":"1904.07669","version":1},"attestation_state":"computed","paper":{"title":"Real-time monitoring via second-harmonic interferometry of a flow gas cell for laser wakefield acceleration","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"F. Brandi, F. Conti, F. Giammanco, F. Sylla, G. Lambert, L. A. Gizzi","submitted_at":"2019-04-16T13:49:27Z","abstract_excerpt":"The use of a gas cell as a target for laser weakfield acceleration (LWFA) offers the possibility to obtain stable and manageable laser-plasma interaction process, a mandatory condition for practical applications of this emerging technique, especially in multi-stage accelerators. In order to obtain full control of the gas particle number density in the interaction region, thus allowing for a long term stable and manageable LWFA, real-time monitoring is necessary. In fact, the ideal gas law cannot be used to estimate the particle density inside the flow cell based on the preset backing pressure "},"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":"1904.07669","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-04-16T13:49:27Z","cross_cats_sorted":[],"title_canon_sha256":"7973c172f058cdd334269bd319f663cf75e0df0b0639ec16cd3529354dfe1cd2","abstract_canon_sha256":"528b9a9b8a4751983d5100e2c609d0db3a38ebab688913d82f6f833fdf884b67"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:48:24.532973Z","signature_b64":"WNEmgMVMiXZRk0lZoN1bbFxdWmKLCojLDo3MY/247KY9OGveAQhLleKrT6e/ZeSr9PeFiiqz479jNWIV416OAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"58e78624d8dbc371f5db0e641bc2e1414a74ea18abb58ae5aa0dd8f17fe83c76","last_reissued_at":"2026-05-17T23:48:24.532025Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:48:24.532025Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Real-time monitoring via second-harmonic interferometry of a flow gas cell for laser wakefield acceleration","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"F. Brandi, F. Conti, F. Giammanco, F. Sylla, G. Lambert, L. A. Gizzi","submitted_at":"2019-04-16T13:49:27Z","abstract_excerpt":"The use of a gas cell as a target for laser weakfield acceleration (LWFA) offers the possibility to obtain stable and manageable laser-plasma interaction process, a mandatory condition for practical applications of this emerging technique, especially in multi-stage accelerators. In order to obtain full control of the gas particle number density in the interaction region, thus allowing for a long term stable and manageable LWFA, real-time monitoring is necessary. In fact, the ideal gas law cannot be used to estimate the particle density inside the flow cell based on the preset backing pressure "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.07669","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":"1904.07669","created_at":"2026-05-17T23:48:24.532181+00:00"},{"alias_kind":"arxiv_version","alias_value":"1904.07669v1","created_at":"2026-05-17T23:48:24.532181+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.07669","created_at":"2026-05-17T23:48:24.532181+00:00"},{"alias_kind":"pith_short_12","alias_value":"LDTYMJGY3PBX","created_at":"2026-05-18T12:33:21.387695+00:00"},{"alias_kind":"pith_short_16","alias_value":"LDTYMJGY3PBXD5O3","created_at":"2026-05-18T12:33:21.387695+00:00"},{"alias_kind":"pith_short_8","alias_value":"LDTYMJGY","created_at":"2026-05-18T12:33:21.387695+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/LDTYMJGY3PBXD5O3BZSBXQXBIF","json":"https://pith.science/pith/LDTYMJGY3PBXD5O3BZSBXQXBIF.json","graph_json":"https://pith.science/api/pith-number/LDTYMJGY3PBXD5O3BZSBXQXBIF/graph.json","events_json":"https://pith.science/api/pith-number/LDTYMJGY3PBXD5O3BZSBXQXBIF/events.json","paper":"https://pith.science/paper/LDTYMJGY"},"agent_actions":{"view_html":"https://pith.science/pith/LDTYMJGY3PBXD5O3BZSBXQXBIF","download_json":"https://pith.science/pith/LDTYMJGY3PBXD5O3BZSBXQXBIF.json","view_paper":"https://pith.science/paper/LDTYMJGY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1904.07669&json=true","fetch_graph":"https://pith.science/api/pith-number/LDTYMJGY3PBXD5O3BZSBXQXBIF/graph.json","fetch_events":"https://pith.science/api/pith-number/LDTYMJGY3PBXD5O3BZSBXQXBIF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LDTYMJGY3PBXD5O3BZSBXQXBIF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LDTYMJGY3PBXD5O3BZSBXQXBIF/action/storage_attestation","attest_author":"https://pith.science/pith/LDTYMJGY3PBXD5O3BZSBXQXBIF/action/author_attestation","sign_citation":"https://pith.science/pith/LDTYMJGY3PBXD5O3BZSBXQXBIF/action/citation_signature","submit_replication":"https://pith.science/pith/LDTYMJGY3PBXD5O3BZSBXQXBIF/action/replication_record"}},"created_at":"2026-05-17T23:48:24.532181+00:00","updated_at":"2026-05-17T23:48:24.532181+00:00"}