LHD nb4a_fraction #91555.1 (analyzed)

OSAKABE, Masaki, NAGAOKA, Kenichi, TSUMORI, Katsuyoshi, IKEDA, Katsunori, KONDO, Tomoki, SATO, Mamoru, SHIBUYA, Masayuki, SEKIGUCHI, Haruo, KOMADA, Seiji
2025 · doi:10.57451/lhd.a.nb4a_fraction.91555.1 · W7088287447
dataset OA: green CC0
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This dataset describes measured particle fractions for a negative-ion-based beam injector (ion source) labeled NBI#4A in the Large Helical Device (LHD), including fractions corresponding to energy partitions E, E/2, and E/3 over time for a specific shot (91555, sub-shot 1). The analysis output provides average fractions for the first/second/third energy components (avg_fraction_1st_nb4a, avg_fraction_2nd_nb4a, avg_fraction_3rd_nb4a) as well as associated fraction and power-related metrics for both “#4ua” and “#4la” channels. The primary limitation is that the content provided is a data description rather than a full study with experimental rationale, methods detail, or interpretation of how these fractions were used. The paper does not explicitly discuss endometriosis or adenomyosis; it was included in the corpus via a keyword match in the upstream search index.

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Abstract

Particle fraction (E, E/2, E/3) of positive-ion-based beam injectors (ion sources) NBI#4A.
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Data description Particle fraction (E, E/2, E/3) of positive-ion-based beam injectors (ion sources) NBI#4A. More Creator(s) OSAKABE Masaki 1 2 3 4 5 , NAGAOKA Kenichi 1 2 3 4 5 , TSUMORI Katsuyoshi 1 2 3 4 5 , IKEDA Katsunori 1 2 3 4 5 , KONDO Tomoki 1 , SATO Mamoru 1 , SHIBUYA Masayuki 1 , SEKIGUCHI Haruo 1 , KOMADA Seiji 1 National Institute for Fusion Science (NIFS) Acquisition status Primary info. | Shot number | 91555 | | Sub Shot number | 1 | | Diagnostics Name | nb4a_fraction | | File Name | [email protected] | | File Size (bytes) | 59649 | | ArchiveDate | 2013/11/14 20:22:44 +09:00 | | File Format | Analysis Data File (compressed by zip) | | AcquisitionDate | 2013/11/14 20:22:44 +09:00 | | Data Info. | # DimNo = 1 # DimName = 'time' # DimSize = 13107 # ValNo = 11 # ValName = 'avg_fraction_1st_nb4a','avg_fraction_2nd_nb4a','avg_fraction_3rd_nb4a','fraction_power_#4ua','fraction_1st_#4ua','fraction_2nd_#4ua','fraction_3rd_#4ua','fraction_power_#4la','fraction_1st_#4la','fraction_2nd_#4la','fraction_3rd_#4la' | | Publisher | National Institute for Fusion Science (NIFS) | | Identifier | https://doi.org/10.57451/lhd.a.nb4a_fraction.91555.1 | | Identifier Registration | DataCite DOI | | Rights | Copyright by National Institute for Fusion Science (NIFS). | | Access Rights | Rights and Terms of Use for Data | | Relation | Research and Development Activities on Negative Ion Sources (2010) High Performance of Neutral Beam Injectors for Extension of LHD Operational Regime (2010) Plasma Initiation by Neutral Beam Injection (2010) Challenges toward improvement of deuterium-injection power in the Large Helical Device negative-ion-based NBIs (2022) This data refers to 'LHD nb4bpwr_temporal #91555.1 (analyzed)' (2013) This data refers to 'LHD nb4apwr_temporal #91555.1 (analyzed)' (2013) This data refers to 'LHD nb5apwr_temporal #91555.1 (analyzed)' (2013) This data refers to 'LHD nb5bpwr_temporal #91555.1 (analyzed)' (2013) | | Funding Reference | Large Helical Device (LHD) project, NIFS Grant-in-Aid for Scientific Research (B), 16360460 | | Resource Type | Dataset | | Version | 1.0 |

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