{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:7OGRV3IGW66XGPATNIGCPXJ7UY","short_pith_number":"pith:7OGRV3IG","schema_version":"1.0","canonical_sha256":"fb8d1aed06b7bd733c136a0c27dd3fa6050b98ab159a519920644a08db94722c","source":{"kind":"arxiv","id":"0906.0948","version":2},"attestation_state":"computed","paper":{"title":"Wake potentials and impedances of charged beams in gradually tapering structures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"D.A. Burton, D.C. Christie, J.D.A. Smith, R.W. Tucker","submitted_at":"2009-06-04T17:23:42Z","abstract_excerpt":"An analytical method is developed for calculating the geometric wakefield and impedances of an ultrarelativistic beam propagating on- and off-axis through an axially symmetric geometry with slowly varying circular cross-section, such as a transition. Unlike previous analytical methods, our approach considers a beam of arbitrary longitudinal profile and permits detailed perturbative investigation of impedance as a function of frequency. We compare the accuracy of the results of our approach with numerical simulations performed using the code ECHO and determine parameters in which there is good "},"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":"0906.0948","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2009-06-04T17:23:42Z","cross_cats_sorted":[],"title_canon_sha256":"212887e4d7b0dcbe6e11b3a9e808b490d8342ca3e9ffe872f1dc2cb7e2447a29","abstract_canon_sha256":"e6d00d7b173ec1b3e51443f7080222c2276ecbc8bc3888cc8ec3b8bda7904c22"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:13:28.969386Z","signature_b64":"VBAmWvxBZYsnIfjGm3ePZY1iSG/gr774QK8M64WbMJvGBrgTQs0qFTtEmVvQ0a2LV3axbjtinrj2DsrUaqxQAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fb8d1aed06b7bd733c136a0c27dd3fa6050b98ab159a519920644a08db94722c","last_reissued_at":"2026-05-18T02:13:28.968730Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:13:28.968730Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Wake potentials and impedances of charged beams in gradually tapering structures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"D.A. Burton, D.C. Christie, J.D.A. Smith, R.W. Tucker","submitted_at":"2009-06-04T17:23:42Z","abstract_excerpt":"An analytical method is developed for calculating the geometric wakefield and impedances of an ultrarelativistic beam propagating on- and off-axis through an axially symmetric geometry with slowly varying circular cross-section, such as a transition. Unlike previous analytical methods, our approach considers a beam of arbitrary longitudinal profile and permits detailed perturbative investigation of impedance as a function of frequency. We compare the accuracy of the results of our approach with numerical simulations performed using the code ECHO and determine parameters in which there is good "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0906.0948","kind":"arxiv","version":2},"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":"0906.0948","created_at":"2026-05-18T02:13:28.968807+00:00"},{"alias_kind":"arxiv_version","alias_value":"0906.0948v2","created_at":"2026-05-18T02:13:28.968807+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0906.0948","created_at":"2026-05-18T02:13:28.968807+00:00"},{"alias_kind":"pith_short_12","alias_value":"7OGRV3IGW66X","created_at":"2026-05-18T12:25:58.837520+00:00"},{"alias_kind":"pith_short_16","alias_value":"7OGRV3IGW66XGPAT","created_at":"2026-05-18T12:25:58.837520+00:00"},{"alias_kind":"pith_short_8","alias_value":"7OGRV3IG","created_at":"2026-05-18T12:25:58.837520+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/7OGRV3IGW66XGPATNIGCPXJ7UY","json":"https://pith.science/pith/7OGRV3IGW66XGPATNIGCPXJ7UY.json","graph_json":"https://pith.science/api/pith-number/7OGRV3IGW66XGPATNIGCPXJ7UY/graph.json","events_json":"https://pith.science/api/pith-number/7OGRV3IGW66XGPATNIGCPXJ7UY/events.json","paper":"https://pith.science/paper/7OGRV3IG"},"agent_actions":{"view_html":"https://pith.science/pith/7OGRV3IGW66XGPATNIGCPXJ7UY","download_json":"https://pith.science/pith/7OGRV3IGW66XGPATNIGCPXJ7UY.json","view_paper":"https://pith.science/paper/7OGRV3IG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0906.0948&json=true","fetch_graph":"https://pith.science/api/pith-number/7OGRV3IGW66XGPATNIGCPXJ7UY/graph.json","fetch_events":"https://pith.science/api/pith-number/7OGRV3IGW66XGPATNIGCPXJ7UY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7OGRV3IGW66XGPATNIGCPXJ7UY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7OGRV3IGW66XGPATNIGCPXJ7UY/action/storage_attestation","attest_author":"https://pith.science/pith/7OGRV3IGW66XGPATNIGCPXJ7UY/action/author_attestation","sign_citation":"https://pith.science/pith/7OGRV3IGW66XGPATNIGCPXJ7UY/action/citation_signature","submit_replication":"https://pith.science/pith/7OGRV3IGW66XGPATNIGCPXJ7UY/action/replication_record"}},"created_at":"2026-05-18T02:13:28.968807+00:00","updated_at":"2026-05-18T02:13:28.968807+00:00"}