{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:ICFT233E757SB2L6T3OJV6QKGE","short_pith_number":"pith:ICFT233E","schema_version":"1.0","canonical_sha256":"408b3d6f64ff7f20e97e9edc9afa0a31190f51f3d808c25cccb4c162c1c86e57","source":{"kind":"arxiv","id":"1210.6875","version":4},"attestation_state":"computed","paper":{"title":"Effect of high temperature heat treatments on the quality factor of a large-grain superconducting radio-frequency niobium cavity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.acc-ph"],"primary_cat":"cond-mat.supr-con","authors_text":"D. M. McRae, F. Stevie, G. Ciovati, G. R. Myneni, J. Zasadzinzki, K. E. Gray, N. Groll, P. Dhakal, P. Maheshwari, Q. Yang, R. Pike, R. P. Walsh, T. Proslier","submitted_at":"2012-10-25T15:28:50Z","abstract_excerpt":"Large-grain Nb has become a viable alternative to fine-grain Nb for the fabrication of superconducting radio-frequency cavities. In this contribution we report the results from a heat treatment study of a large-grain 1.5 GHz single-cell cavity made of \"medium purity\" Nb. The baseline surface preparation prior to heat treatment consisted of standard buffered chemical polishing. The heat treatment in the range 800 - 1400 C was done in a newly designed vacuum induction furnace. Q0 values of the order of 2x1010 at 2.0 K and peak surface magnetic field (Bp) of 90 mT were achieved reproducibly. A Q0"},"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":"1210.6875","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-10-25T15:28:50Z","cross_cats_sorted":["physics.acc-ph"],"title_canon_sha256":"18c39e760bcab2f0ba59d4738f7c7b1386383556c5a91b9efda9ec87e53de9ef","abstract_canon_sha256":"2bfb8e535a30ad03e5448b29b14f03c5531441c22c8dd1a15c89144937483aaf"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:53:37.628827Z","signature_b64":"G/V5HEFR21978F3/R3pJFIEJ2fTxwG5J+9UGg2jhOUlJ/CYOM7qVJ23GTj5LNevm452H8/bFZhNnnnOPyugCBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"408b3d6f64ff7f20e97e9edc9afa0a31190f51f3d808c25cccb4c162c1c86e57","last_reissued_at":"2026-05-18T01:53:37.628293Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:53:37.628293Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Effect of high temperature heat treatments on the quality factor of a large-grain superconducting radio-frequency niobium cavity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.acc-ph"],"primary_cat":"cond-mat.supr-con","authors_text":"D. M. McRae, F. Stevie, G. Ciovati, G. R. Myneni, J. Zasadzinzki, K. E. Gray, N. Groll, P. Dhakal, P. Maheshwari, Q. Yang, R. Pike, R. P. Walsh, T. Proslier","submitted_at":"2012-10-25T15:28:50Z","abstract_excerpt":"Large-grain Nb has become a viable alternative to fine-grain Nb for the fabrication of superconducting radio-frequency cavities. In this contribution we report the results from a heat treatment study of a large-grain 1.5 GHz single-cell cavity made of \"medium purity\" Nb. The baseline surface preparation prior to heat treatment consisted of standard buffered chemical polishing. The heat treatment in the range 800 - 1400 C was done in a newly designed vacuum induction furnace. Q0 values of the order of 2x1010 at 2.0 K and peak surface magnetic field (Bp) of 90 mT were achieved reproducibly. A Q0"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.6875","kind":"arxiv","version":4},"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":"1210.6875","created_at":"2026-05-18T01:53:37.628399+00:00"},{"alias_kind":"arxiv_version","alias_value":"1210.6875v4","created_at":"2026-05-18T01:53:37.628399+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.6875","created_at":"2026-05-18T01:53:37.628399+00:00"},{"alias_kind":"pith_short_12","alias_value":"ICFT233E757S","created_at":"2026-05-18T12:27:09.501522+00:00"},{"alias_kind":"pith_short_16","alias_value":"ICFT233E757SB2L6","created_at":"2026-05-18T12:27:09.501522+00:00"},{"alias_kind":"pith_short_8","alias_value":"ICFT233E","created_at":"2026-05-18T12:27:09.501522+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/ICFT233E757SB2L6T3OJV6QKGE","json":"https://pith.science/pith/ICFT233E757SB2L6T3OJV6QKGE.json","graph_json":"https://pith.science/api/pith-number/ICFT233E757SB2L6T3OJV6QKGE/graph.json","events_json":"https://pith.science/api/pith-number/ICFT233E757SB2L6T3OJV6QKGE/events.json","paper":"https://pith.science/paper/ICFT233E"},"agent_actions":{"view_html":"https://pith.science/pith/ICFT233E757SB2L6T3OJV6QKGE","download_json":"https://pith.science/pith/ICFT233E757SB2L6T3OJV6QKGE.json","view_paper":"https://pith.science/paper/ICFT233E","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1210.6875&json=true","fetch_graph":"https://pith.science/api/pith-number/ICFT233E757SB2L6T3OJV6QKGE/graph.json","fetch_events":"https://pith.science/api/pith-number/ICFT233E757SB2L6T3OJV6QKGE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ICFT233E757SB2L6T3OJV6QKGE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ICFT233E757SB2L6T3OJV6QKGE/action/storage_attestation","attest_author":"https://pith.science/pith/ICFT233E757SB2L6T3OJV6QKGE/action/author_attestation","sign_citation":"https://pith.science/pith/ICFT233E757SB2L6T3OJV6QKGE/action/citation_signature","submit_replication":"https://pith.science/pith/ICFT233E757SB2L6T3OJV6QKGE/action/replication_record"}},"created_at":"2026-05-18T01:53:37.628399+00:00","updated_at":"2026-05-18T01:53:37.628399+00:00"}