{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["006:55"], "contactPoint": {"fn": "Patrick Egan", "hasEmail": "mailto:patrick.egan@nist.gov"}, "description": "Supplemental material to the article \"Optical n(p, T_90) measurement suite 1: He, Ar, and N_2\" by PF Egan and Y Yang in International Journal of Thermophysics 2023.The archive file contains research data and analysis scripts as follows:* The n(p, T_90) dataset for helium.  A Python script analyzes the data to produce the estimate of temperature-dependent compressibility, and reproduces Fig. 2 from the article.* The n(p, T_90) dataset for argon.  A Python script analyzes the data to determine T - T_90, and reproduces Fig. 3 from the article. Additionally, the output data T - T_90 (Table 2 in the article) are included in a separate text file, together with the estimated uncertainty in the determination.  The Python script includes the further analysis undertaken on the nonlinear terms B and C to reproduce Fig. 6.* The n(p, T_90) dataset for nitrogen.  A Python script analyzes the data to reveal the temperature-dependence of polarizability, and reproduce Fig. 4.  The script includes the further analysis undertaken on the nonlinear terms B and C to reproduce Fig. 7.* A Python script uses argon and nitrogen results from the present work to reproduce Fig. 5, a graphical depiction of difference with literature  for the second density virial coefficient B_p.", "distribution": [{"description": "The n(p,T_90) datasets for helium, argon, and nitrogen, plus the analysis scripts", "downloadURL": "https://data.nist.gov/od/ds/mds2-3106/egan-npT-supp.zip", "mediaType": "application/x-zip-compressed", "title": "Supplemental material to article"}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-3054/egan-npT-supp.zip", "mediaType": "application/zip", "title": "egan-npT-supp"}], "identifier": "ark:/88434/mds2-3054", "issued": "2023-08-31", "keyword": ["Refractometry", "interferometry", "polarizability", "thermodynamic metrology"], "landingPage": "https://data.nist.gov/od/id/mds2-3054", "language": ["en"], "license": "https://www.nist.gov/open/license", "modified": "2023-08-01 00:00:00", "programCode": ["006:045"], "publisher": {"@type": "org:Organization", "name": "National Institute of Standards and Technology"}, "replaces": "ark:/88434/mds2-3054", "theme": ["Metrology:Pressure and vacuum metrology", "Metrology:Thermometry metrology"], "title": "Optical n(p, T_90) measurement suite 1:  He, Ar, and N_2"}