{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:IDOY6C6XHNCE7BX5S3GQSPLYOB","short_pith_number":"pith:IDOY6C6X","schema_version":"1.0","canonical_sha256":"40dd8f0bd73b444f86fd96cd093d78706402b113e91fe5733c23cd0ce297bf6a","source":{"kind":"arxiv","id":"1104.3703","version":1},"attestation_state":"computed","paper":{"title":"Observation of Coherently-Enhanced Tunable Narrow-Band Terahertz Transition Radiation from a Relativistic Sub-Picosecond Electron Bunch Train","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"A. H. Lumpkin, J. Ruan, M. M. Rihaoui, P. Piot, R. Thurman-Keup, T. J. Maxwell, Y.-E Sun","submitted_at":"2011-04-19T10:34:21Z","abstract_excerpt":"We experimentally demonstrate the production of narrow-band ($\\delta f/f \\simeq20$% at $f\\simeq 0.5$ THz) THz transition radiation with tunable frequency over [0.37, 0.86] THz. The radiation is produced as a train of sub-picosecond relativistic electron bunches transits at the vacuum-aluminum interface of an aluminum converter screen. We also show a possible application of modulated beams to extend the dynamical range of a popular bunch length diagnostic technique based on the spectral analysis of coherent radiation."},"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":"1104.3703","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2011-04-19T10:34:21Z","cross_cats_sorted":[],"title_canon_sha256":"01a0b8dbe88ae6cd3f4833e35646f5dfa82084e701170ec241e704d0fbc421b6","abstract_canon_sha256":"69eee27cdecfd6e87216d6adf6b10dc1d8359467d64c0771813568493335670b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:22:02.224860Z","signature_b64":"IaCn9+fQlvwHRHlqqXnJqL+vUmIFklqwjOuAvNkLqIE0gRocVK2IO+8wcUfS/nawPcHkqhzFSg376A+TtqXlCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"40dd8f0bd73b444f86fd96cd093d78706402b113e91fe5733c23cd0ce297bf6a","last_reissued_at":"2026-05-18T02:22:02.224165Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:22:02.224165Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Observation of Coherently-Enhanced Tunable Narrow-Band Terahertz Transition Radiation from a Relativistic Sub-Picosecond Electron Bunch Train","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"A. H. Lumpkin, J. Ruan, M. M. Rihaoui, P. Piot, R. Thurman-Keup, T. J. Maxwell, Y.-E Sun","submitted_at":"2011-04-19T10:34:21Z","abstract_excerpt":"We experimentally demonstrate the production of narrow-band ($\\delta f/f \\simeq20$% at $f\\simeq 0.5$ THz) THz transition radiation with tunable frequency over [0.37, 0.86] THz. The radiation is produced as a train of sub-picosecond relativistic electron bunches transits at the vacuum-aluminum interface of an aluminum converter screen. We also show a possible application of modulated beams to extend the dynamical range of a popular bunch length diagnostic technique based on the spectral analysis of coherent radiation."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.3703","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":"1104.3703","created_at":"2026-05-18T02:22:02.224266+00:00"},{"alias_kind":"arxiv_version","alias_value":"1104.3703v1","created_at":"2026-05-18T02:22:02.224266+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.3703","created_at":"2026-05-18T02:22:02.224266+00:00"},{"alias_kind":"pith_short_12","alias_value":"IDOY6C6XHNCE","created_at":"2026-05-18T12:26:30.835961+00:00"},{"alias_kind":"pith_short_16","alias_value":"IDOY6C6XHNCE7BX5","created_at":"2026-05-18T12:26:30.835961+00:00"},{"alias_kind":"pith_short_8","alias_value":"IDOY6C6X","created_at":"2026-05-18T12:26:30.835961+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/IDOY6C6XHNCE7BX5S3GQSPLYOB","json":"https://pith.science/pith/IDOY6C6XHNCE7BX5S3GQSPLYOB.json","graph_json":"https://pith.science/api/pith-number/IDOY6C6XHNCE7BX5S3GQSPLYOB/graph.json","events_json":"https://pith.science/api/pith-number/IDOY6C6XHNCE7BX5S3GQSPLYOB/events.json","paper":"https://pith.science/paper/IDOY6C6X"},"agent_actions":{"view_html":"https://pith.science/pith/IDOY6C6XHNCE7BX5S3GQSPLYOB","download_json":"https://pith.science/pith/IDOY6C6XHNCE7BX5S3GQSPLYOB.json","view_paper":"https://pith.science/paper/IDOY6C6X","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1104.3703&json=true","fetch_graph":"https://pith.science/api/pith-number/IDOY6C6XHNCE7BX5S3GQSPLYOB/graph.json","fetch_events":"https://pith.science/api/pith-number/IDOY6C6XHNCE7BX5S3GQSPLYOB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IDOY6C6XHNCE7BX5S3GQSPLYOB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IDOY6C6XHNCE7BX5S3GQSPLYOB/action/storage_attestation","attest_author":"https://pith.science/pith/IDOY6C6XHNCE7BX5S3GQSPLYOB/action/author_attestation","sign_citation":"https://pith.science/pith/IDOY6C6XHNCE7BX5S3GQSPLYOB/action/citation_signature","submit_replication":"https://pith.science/pith/IDOY6C6XHNCE7BX5S3GQSPLYOB/action/replication_record"}},"created_at":"2026-05-18T02:22:02.224266+00:00","updated_at":"2026-05-18T02:22:02.224266+00:00"}