{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:JXJHBUS55VAWIVFTVZD4G7XKRV","short_pith_number":"pith:JXJHBUS5","schema_version":"1.0","canonical_sha256":"4dd270d25ded416454b3ae47c37eea8d43c60c4069c8bb82d15decfac7893714","source":{"kind":"arxiv","id":"1809.02899","version":1},"attestation_state":"computed","paper":{"title":"Electron energy increase in a laser wakefield accelerator using longitudinally shaped plasma density profiles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"Bj\\\"orn Manuel Hegelich, Byung Ju Yoo, Calin Ioan Hojbota, Chang Hee Nam, Constantin Aniculaesei, Enrico Brunetti, Hyung Taek Kim, Jae Hee Sung, Jeong Ho Jeon, Junghun Shin, Kyung Hwan Oh, Myung Hoon Cho, Seongha Cho, Seong Ku Lee, Vishwa Bandhu Pathak, Yong Ha Jang","submitted_at":"2018-09-09T00:22:57Z","abstract_excerpt":"The phase velocity of the wakefield of a laser wakefield accelerator can, theoretically, be manipulated by shaping the longitudinal plasma density profile, thus controlling the parameters of the generated electron beam. We present an experimental method where using a series of shaped longitudinal plasma density profiles we increased the mean electron peak energy by more than 50%, from 174.8 +/- 1.3 MeV to 262 +/- 9.7 MeV and the maximum peak energy from 182.1 MeV to 363.1 MeV. The divergence follows closely the change of mean energy and decreases from 58.95 +/- 0.45 mrad to 12.63 +/- 1.17 mrad"},"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":"1809.02899","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-09-09T00:22:57Z","cross_cats_sorted":[],"title_canon_sha256":"5a0537e1811bbf7867d6c7bd41a80487d749d0a21724da6b0192f2a52539ceb9","abstract_canon_sha256":"8d55913e9cd630df18c9ec9e3bccc593b79486cc59971ef4c880de7a66728ecc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:12:50.310106Z","signature_b64":"Oq6C5Zb1E3XCPxNIYaIP2icyRM1GhXU2rOH08nrKiB4S/epX9vtjYH6NRjcT0fDi1huLi5tfdOcuWoS7BNNQAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4dd270d25ded416454b3ae47c37eea8d43c60c4069c8bb82d15decfac7893714","last_reissued_at":"2026-07-05T00:12:50.309650Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:12:50.309650Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Electron energy increase in a laser wakefield accelerator using longitudinally shaped plasma density profiles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"Bj\\\"orn Manuel Hegelich, Byung Ju Yoo, Calin Ioan Hojbota, Chang Hee Nam, Constantin Aniculaesei, Enrico Brunetti, Hyung Taek Kim, Jae Hee Sung, Jeong Ho Jeon, Junghun Shin, Kyung Hwan Oh, Myung Hoon Cho, Seongha Cho, Seong Ku Lee, Vishwa Bandhu Pathak, Yong Ha Jang","submitted_at":"2018-09-09T00:22:57Z","abstract_excerpt":"The phase velocity of the wakefield of a laser wakefield accelerator can, theoretically, be manipulated by shaping the longitudinal plasma density profile, thus controlling the parameters of the generated electron beam. We present an experimental method where using a series of shaped longitudinal plasma density profiles we increased the mean electron peak energy by more than 50%, from 174.8 +/- 1.3 MeV to 262 +/- 9.7 MeV and the maximum peak energy from 182.1 MeV to 363.1 MeV. The divergence follows closely the change of mean energy and decreases from 58.95 +/- 0.45 mrad to 12.63 +/- 1.17 mrad"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.02899","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1809.02899/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"1809.02899","created_at":"2026-07-05T00:12:50.309708+00:00"},{"alias_kind":"arxiv_version","alias_value":"1809.02899v1","created_at":"2026-07-05T00:12:50.309708+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.02899","created_at":"2026-07-05T00:12:50.309708+00:00"},{"alias_kind":"pith_short_12","alias_value":"JXJHBUS55VAW","created_at":"2026-07-05T00:12:50.309708+00:00"},{"alias_kind":"pith_short_16","alias_value":"JXJHBUS55VAWIVFT","created_at":"2026-07-05T00:12:50.309708+00:00"},{"alias_kind":"pith_short_8","alias_value":"JXJHBUS5","created_at":"2026-07-05T00:12:50.309708+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2508.00145","citing_title":"Experimental Demonstration of Dephasing Reduction in an Optically Guided Laser-Plasma Accelerator","ref_index":8,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/JXJHBUS55VAWIVFTVZD4G7XKRV","json":"https://pith.science/pith/JXJHBUS55VAWIVFTVZD4G7XKRV.json","graph_json":"https://pith.science/api/pith-number/JXJHBUS55VAWIVFTVZD4G7XKRV/graph.json","events_json":"https://pith.science/api/pith-number/JXJHBUS55VAWIVFTVZD4G7XKRV/events.json","paper":"https://pith.science/paper/JXJHBUS5"},"agent_actions":{"view_html":"https://pith.science/pith/JXJHBUS55VAWIVFTVZD4G7XKRV","download_json":"https://pith.science/pith/JXJHBUS55VAWIVFTVZD4G7XKRV.json","view_paper":"https://pith.science/paper/JXJHBUS5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1809.02899&json=true","fetch_graph":"https://pith.science/api/pith-number/JXJHBUS55VAWIVFTVZD4G7XKRV/graph.json","fetch_events":"https://pith.science/api/pith-number/JXJHBUS55VAWIVFTVZD4G7XKRV/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JXJHBUS55VAWIVFTVZD4G7XKRV/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JXJHBUS55VAWIVFTVZD4G7XKRV/action/storage_attestation","attest_author":"https://pith.science/pith/JXJHBUS55VAWIVFTVZD4G7XKRV/action/author_attestation","sign_citation":"https://pith.science/pith/JXJHBUS55VAWIVFTVZD4G7XKRV/action/citation_signature","submit_replication":"https://pith.science/pith/JXJHBUS55VAWIVFTVZD4G7XKRV/action/replication_record"}},"created_at":"2026-07-05T00:12:50.309708+00:00","updated_at":"2026-07-05T00:12:50.309708+00:00"}