{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:5UQ5QZIHJ3KSUWD4MGLYO4IYP4","short_pith_number":"pith:5UQ5QZIH","schema_version":"1.0","canonical_sha256":"ed21d865074ed52a587c61978771187f1781aadb244944e5644f87a0ee120d9b","source":{"kind":"arxiv","id":"2608.02226","version":1},"attestation_state":"computed","paper":{"title":"Mass Spectrometry Studies of Hydrogen Ions Energy Distributions in an ECR- based Large Volume Plasma Source","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["nucl-ex","physics.atm-clus"],"primary_cat":"physics.plasm-ph","authors_text":"Ashish Ganguli, Bibekananda Naik, Debaprasad Sahu, Mainak Bandyopadhyay, Ramesh Narayanan","submitted_at":"2026-08-03T13:44:39Z","abstract_excerpt":"Plasma is produced in a Large Volume Plasma Source (LVPS; dia. = 1 m, height = 1m) using CW microwaves (= 400 - 600 W, 2.45 GHz), in a compact ECR plasma source (CEPS) attached to LVPS, at hydrogen gas pressures = 1 - 3 mTorr. Plasma expands along the CEPS magnetic field into LVPS. A Hiden Analytical HPR 60 molecular beam mass spectrometer (MBMS) is used to measure the H^- ion energy distribution functions (IEDFs) in the downstream plasma. Previous plasma characterization studies in LVPS indicated favourable downstream plasma conditions for volume production of H^- ions. Measurements conducted"},"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":"2608.02226","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2026-08-03T13:44:39Z","cross_cats_sorted":["nucl-ex","physics.atm-clus"],"title_canon_sha256":"539f6d4ba5980a4f98d4603b9fd544674dec91ecfe48977130d8de9b5c341f29","abstract_canon_sha256":"138ef14eb38d15bbe17f0ae7bceeabad28d8ac4af888fbdb786b7aed3047914b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-04T02:11:26.829505Z","signature_b64":"e+ugnYVqdOhyxuOuGqTj6NclpxwG3fWK9qT9S1XZNLB5Uf2Rs1EGX/U5cSxo7eCBSkYwBu2gk+12drP/jR5RBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ed21d865074ed52a587c61978771187f1781aadb244944e5644f87a0ee120d9b","last_reissued_at":"2026-08-04T02:11:26.827919Z","signature_status":"signed_v1","first_computed_at":"2026-08-04T02:11:26.827919Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Mass Spectrometry Studies of Hydrogen Ions Energy Distributions in an ECR- based Large Volume Plasma Source","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["nucl-ex","physics.atm-clus"],"primary_cat":"physics.plasm-ph","authors_text":"Ashish Ganguli, Bibekananda Naik, Debaprasad Sahu, Mainak Bandyopadhyay, Ramesh Narayanan","submitted_at":"2026-08-03T13:44:39Z","abstract_excerpt":"Plasma is produced in a Large Volume Plasma Source (LVPS; dia. = 1 m, height = 1m) using CW microwaves (= 400 - 600 W, 2.45 GHz), in a compact ECR plasma source (CEPS) attached to LVPS, at hydrogen gas pressures = 1 - 3 mTorr. Plasma expands along the CEPS magnetic field into LVPS. A Hiden Analytical HPR 60 molecular beam mass spectrometer (MBMS) is used to measure the H^- ion energy distribution functions (IEDFs) in the downstream plasma. Previous plasma characterization studies in LVPS indicated favourable downstream plasma conditions for volume production of H^- ions. Measurements conducted"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.02226","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/2608.02226/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":"2608.02226","created_at":"2026-08-04T02:11:26.829486+00:00"},{"alias_kind":"arxiv_version","alias_value":"2608.02226v1","created_at":"2026-08-04T02:11:26.829486+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.02226","created_at":"2026-08-04T02:11:26.829486+00:00"},{"alias_kind":"pith_short_12","alias_value":"5UQ5QZIHJ3KS","created_at":"2026-08-04T02:11:26.829486+00:00"},{"alias_kind":"pith_short_16","alias_value":"5UQ5QZIHJ3KSUWD4","created_at":"2026-08-04T02:11:26.829486+00:00"},{"alias_kind":"pith_short_8","alias_value":"5UQ5QZIH","created_at":"2026-08-04T02:11:26.829486+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/5UQ5QZIHJ3KSUWD4MGLYO4IYP4","json":"https://pith.science/pith/5UQ5QZIHJ3KSUWD4MGLYO4IYP4.json","graph_json":"https://pith.science/api/pith-number/5UQ5QZIHJ3KSUWD4MGLYO4IYP4/graph.json","events_json":"https://pith.science/api/pith-number/5UQ5QZIHJ3KSUWD4MGLYO4IYP4/events.json","paper":"https://pith.science/paper/5UQ5QZIH"},"agent_actions":{"view_html":"https://pith.science/pith/5UQ5QZIHJ3KSUWD4MGLYO4IYP4","download_json":"https://pith.science/pith/5UQ5QZIHJ3KSUWD4MGLYO4IYP4.json","view_paper":"https://pith.science/paper/5UQ5QZIH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2608.02226&json=true","fetch_graph":"https://pith.science/api/pith-number/5UQ5QZIHJ3KSUWD4MGLYO4IYP4/graph.json","fetch_events":"https://pith.science/api/pith-number/5UQ5QZIHJ3KSUWD4MGLYO4IYP4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5UQ5QZIHJ3KSUWD4MGLYO4IYP4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5UQ5QZIHJ3KSUWD4MGLYO4IYP4/action/storage_attestation","attest_author":"https://pith.science/pith/5UQ5QZIHJ3KSUWD4MGLYO4IYP4/action/author_attestation","sign_citation":"https://pith.science/pith/5UQ5QZIHJ3KSUWD4MGLYO4IYP4/action/citation_signature","submit_replication":"https://pith.science/pith/5UQ5QZIHJ3KSUWD4MGLYO4IYP4/action/replication_record"}},"created_at":"2026-08-04T02:11:26.829486+00:00","updated_at":"2026-08-04T02:11:26.829486+00:00"}