{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:C42P72QCTU7TLCBLH6I4C2GNNU","short_pith_number":"pith:C42P72QC","schema_version":"1.0","canonical_sha256":"1734ffea029d3f35882b3f91c168cd6d20a6981aa3890a98e2686d9601eab42a","source":{"kind":"arxiv","id":"1009.1972","version":2},"attestation_state":"computed","paper":{"title":"Modeling of beam customization devices in the pencil beam splitting algorithm for heavy charged particle radiotherapy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.med-ph","authors_text":"Nobuyuki Kanematsu","submitted_at":"2010-09-10T10:05:05Z","abstract_excerpt":"A broad-beam-delivery system for heavy-charged-particle radiotherapy often employs multiple collimators and a range-compensating filter, which potentially offer complex beam customization. In treatment planning, it is however difficult for a conventional pencil-beam algorithm to deal with these structures due to beam-size growth during transport. This study aims to resolve the problem with a novel computational model. The pencil beams are initially defined at the range compensating filter with angular-acceptance correction for the upstream collimators followed by the range compensation effects"},"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":"1009.1972","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2010-09-10T10:05:05Z","cross_cats_sorted":[],"title_canon_sha256":"3f420cadb5b6bdd25f5618c573c3d3532a5b7129d4be1fd3c144e7bfc40a0d13","abstract_canon_sha256":"2e1600ab4a4265ab1e36592878aa06de677fa6a9a743c919becd890b4d4e500d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:04:54.988733Z","signature_b64":"ccQ0OjEcy0tUgomBEoeCnSxDm5NWQSgVhqb2Sm454zCQ6OiP8V3fWyhQ/gZHDwhgV738EfrpXlxNZYtPNaXJAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1734ffea029d3f35882b3f91c168cd6d20a6981aa3890a98e2686d9601eab42a","last_reissued_at":"2026-05-18T04:04:54.988222Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:04:54.988222Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Modeling of beam customization devices in the pencil beam splitting algorithm for heavy charged particle radiotherapy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.med-ph","authors_text":"Nobuyuki Kanematsu","submitted_at":"2010-09-10T10:05:05Z","abstract_excerpt":"A broad-beam-delivery system for heavy-charged-particle radiotherapy often employs multiple collimators and a range-compensating filter, which potentially offer complex beam customization. In treatment planning, it is however difficult for a conventional pencil-beam algorithm to deal with these structures due to beam-size growth during transport. This study aims to resolve the problem with a novel computational model. The pencil beams are initially defined at the range compensating filter with angular-acceptance correction for the upstream collimators followed by the range compensation effects"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.1972","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":"1009.1972","created_at":"2026-05-18T04:04:54.988300+00:00"},{"alias_kind":"arxiv_version","alias_value":"1009.1972v2","created_at":"2026-05-18T04:04:54.988300+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.1972","created_at":"2026-05-18T04:04:54.988300+00:00"},{"alias_kind":"pith_short_12","alias_value":"C42P72QCTU7T","created_at":"2026-05-18T12:26:05.355336+00:00"},{"alias_kind":"pith_short_16","alias_value":"C42P72QCTU7TLCBL","created_at":"2026-05-18T12:26:05.355336+00:00"},{"alias_kind":"pith_short_8","alias_value":"C42P72QC","created_at":"2026-05-18T12:26:05.355336+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/C42P72QCTU7TLCBLH6I4C2GNNU","json":"https://pith.science/pith/C42P72QCTU7TLCBLH6I4C2GNNU.json","graph_json":"https://pith.science/api/pith-number/C42P72QCTU7TLCBLH6I4C2GNNU/graph.json","events_json":"https://pith.science/api/pith-number/C42P72QCTU7TLCBLH6I4C2GNNU/events.json","paper":"https://pith.science/paper/C42P72QC"},"agent_actions":{"view_html":"https://pith.science/pith/C42P72QCTU7TLCBLH6I4C2GNNU","download_json":"https://pith.science/pith/C42P72QCTU7TLCBLH6I4C2GNNU.json","view_paper":"https://pith.science/paper/C42P72QC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1009.1972&json=true","fetch_graph":"https://pith.science/api/pith-number/C42P72QCTU7TLCBLH6I4C2GNNU/graph.json","fetch_events":"https://pith.science/api/pith-number/C42P72QCTU7TLCBLH6I4C2GNNU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/C42P72QCTU7TLCBLH6I4C2GNNU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/C42P72QCTU7TLCBLH6I4C2GNNU/action/storage_attestation","attest_author":"https://pith.science/pith/C42P72QCTU7TLCBLH6I4C2GNNU/action/author_attestation","sign_citation":"https://pith.science/pith/C42P72QCTU7TLCBLH6I4C2GNNU/action/citation_signature","submit_replication":"https://pith.science/pith/C42P72QCTU7TLCBLH6I4C2GNNU/action/replication_record"}},"created_at":"2026-05-18T04:04:54.988300+00:00","updated_at":"2026-05-18T04:04:54.988300+00:00"}