{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:KXUNXFSYZTOEN6ZGGMDQYANQM6","short_pith_number":"pith:KXUNXFSY","schema_version":"1.0","canonical_sha256":"55e8db9658ccdc46fb2633070c01b067af918919695d4cecbfd30b5e0a499b7e","source":{"kind":"arxiv","id":"1510.07738","version":1},"attestation_state":"computed","paper":{"title":"Multi-objective Optimizations of a Novel Cryo-cooled DC Gun Based Ultra Fast Electron Diffraction Beamline","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"A. Bartnik, C. Gulliford, I. Bazarov","submitted_at":"2015-10-27T00:54:02Z","abstract_excerpt":"We present the results of multi-objective genetic algorithm optimizations of a potential single shot ultra fast electron diffraction beamline utilizing a 225 kV dc gun with a novel cryocooled photocathode system and buncher cavity. Optimizations of the transverse projected emittance as a function of bunch charge are presented and discussed in terms of the scaling laws derived in the charge saturation limit. Additionally, optimization of the transverse coherence length as a function of final rms bunch length at sample location have been performed for three different sample radii: 50, 100, 200 m"},"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":"1510.07738","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-10-27T00:54:02Z","cross_cats_sorted":[],"title_canon_sha256":"a7aca35ff1e4117d66445cd3857d9f47f1c5849eb3ef48c7620620ac6d57cf68","abstract_canon_sha256":"944115033c566758ee9899d4169c577024e26fdcb4d894b26ddce846f6832a0c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:02:45.552212Z","signature_b64":"XzUuT7Wl5I8I7szEgZhO5N04AuoI6Zw4Pf5DzXHr2LWUoimgF7o12UkXpChmSHskn0Xrbv/LL5VNItNQicQjCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"55e8db9658ccdc46fb2633070c01b067af918919695d4cecbfd30b5e0a499b7e","last_reissued_at":"2026-05-18T01:02:45.551816Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:02:45.551816Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Multi-objective Optimizations of a Novel Cryo-cooled DC Gun Based Ultra Fast Electron Diffraction Beamline","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"A. Bartnik, C. Gulliford, I. Bazarov","submitted_at":"2015-10-27T00:54:02Z","abstract_excerpt":"We present the results of multi-objective genetic algorithm optimizations of a potential single shot ultra fast electron diffraction beamline utilizing a 225 kV dc gun with a novel cryocooled photocathode system and buncher cavity. Optimizations of the transverse projected emittance as a function of bunch charge are presented and discussed in terms of the scaling laws derived in the charge saturation limit. Additionally, optimization of the transverse coherence length as a function of final rms bunch length at sample location have been performed for three different sample radii: 50, 100, 200 m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.07738","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":"1510.07738","created_at":"2026-05-18T01:02:45.551871+00:00"},{"alias_kind":"arxiv_version","alias_value":"1510.07738v1","created_at":"2026-05-18T01:02:45.551871+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.07738","created_at":"2026-05-18T01:02:45.551871+00:00"},{"alias_kind":"pith_short_12","alias_value":"KXUNXFSYZTOE","created_at":"2026-05-18T12:29:29.992203+00:00"},{"alias_kind":"pith_short_16","alias_value":"KXUNXFSYZTOEN6ZG","created_at":"2026-05-18T12:29:29.992203+00:00"},{"alias_kind":"pith_short_8","alias_value":"KXUNXFSY","created_at":"2026-05-18T12:29:29.992203+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/KXUNXFSYZTOEN6ZGGMDQYANQM6","json":"https://pith.science/pith/KXUNXFSYZTOEN6ZGGMDQYANQM6.json","graph_json":"https://pith.science/api/pith-number/KXUNXFSYZTOEN6ZGGMDQYANQM6/graph.json","events_json":"https://pith.science/api/pith-number/KXUNXFSYZTOEN6ZGGMDQYANQM6/events.json","paper":"https://pith.science/paper/KXUNXFSY"},"agent_actions":{"view_html":"https://pith.science/pith/KXUNXFSYZTOEN6ZGGMDQYANQM6","download_json":"https://pith.science/pith/KXUNXFSYZTOEN6ZGGMDQYANQM6.json","view_paper":"https://pith.science/paper/KXUNXFSY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1510.07738&json=true","fetch_graph":"https://pith.science/api/pith-number/KXUNXFSYZTOEN6ZGGMDQYANQM6/graph.json","fetch_events":"https://pith.science/api/pith-number/KXUNXFSYZTOEN6ZGGMDQYANQM6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KXUNXFSYZTOEN6ZGGMDQYANQM6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KXUNXFSYZTOEN6ZGGMDQYANQM6/action/storage_attestation","attest_author":"https://pith.science/pith/KXUNXFSYZTOEN6ZGGMDQYANQM6/action/author_attestation","sign_citation":"https://pith.science/pith/KXUNXFSYZTOEN6ZGGMDQYANQM6/action/citation_signature","submit_replication":"https://pith.science/pith/KXUNXFSYZTOEN6ZGGMDQYANQM6/action/replication_record"}},"created_at":"2026-05-18T01:02:45.551871+00:00","updated_at":"2026-05-18T01:02:45.551871+00:00"}