{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:K42KGJQTDTWOZ72JESCYTOXVOL","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"26030925af8d7063d2f8523110b664703d9cd19a824f0d10c526137f604885aa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2013-11-08T07:49:13Z","title_canon_sha256":"08fd2324cf66447a389652f0b237e9f672270bf1d2df665c0921496f95cd77c2"},"schema_version":"1.0","source":{"id":"1311.1892","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.1892","created_at":"2026-05-18T01:30:49Z"},{"alias_kind":"arxiv_version","alias_value":"1311.1892v1","created_at":"2026-05-18T01:30:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.1892","created_at":"2026-05-18T01:30:49Z"},{"alias_kind":"pith_short_12","alias_value":"K42KGJQTDTWO","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"K42KGJQTDTWOZ72J","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"K42KGJQT","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:73c1335d20e1ccf5ba5a8a1052d986a0ca3bfeba038ec526005c2c10d9ef9813","target":"graph","created_at":"2026-05-18T01:30:49Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"The energy recovery linac test facility (ERL-TF), a compact ERL-FEL (free electron laser) two-purpose machine, was proposed at the Institute of High Energy Physics, Beijing. As one important component of the ERL-TF, the photo-injector started with a photocathode direct-current gun was designed and preliminarily optimized. In this paper an evolutionary genetic method, non-dominated sorting genetic algorithm II, is applied to optimize the injector beam dynamics, especially in the high-charge operation mode. Study shows that using an incident laser with rms transverse size of 1~1.2 mm, the normal","authors_text":"Jiao Yi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2013-11-08T07:49:13Z","title":"Evolutionary genetic optimization of the injector beam dynamics for the ERL test facility at IHEP"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.1892","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:60ad8431f6f086928c51e3b8984a9f1716a6a3398aca674a39d7439223dafd3c","target":"record","created_at":"2026-05-18T01:30:49Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"26030925af8d7063d2f8523110b664703d9cd19a824f0d10c526137f604885aa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2013-11-08T07:49:13Z","title_canon_sha256":"08fd2324cf66447a389652f0b237e9f672270bf1d2df665c0921496f95cd77c2"},"schema_version":"1.0","source":{"id":"1311.1892","kind":"arxiv","version":1}},"canonical_sha256":"5734a326131cececff49248589baf572e37358b9e2abb46095b3d9e17c205883","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5734a326131cececff49248589baf572e37358b9e2abb46095b3d9e17c205883","first_computed_at":"2026-05-18T01:30:49.411072Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:30:49.411072Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"flmIH2ud/gf/OjYR9l8/MKFkFdyZUnoAQG35sJyX8OZ6cWtM6WW3C1sJYmC4uNgu+Lfxpaydkb2nP768i0ZuBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:30:49.411704Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.1892","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:60ad8431f6f086928c51e3b8984a9f1716a6a3398aca674a39d7439223dafd3c","sha256:73c1335d20e1ccf5ba5a8a1052d986a0ca3bfeba038ec526005c2c10d9ef9813"],"state_sha256":"67d676bc81e6dac7c9045f9c81ac5b5f57ebd36002714177ff5d524ac4b28d34"}