{"title":"Experimental K-shell fluorescence cross sections for elements in the atomic number range 16 ≤ Z ≤ 92 by photon impact at various energies","authors":"","doi":"10.1016/j.adt.2024.101662","DOIUrl":null,"url":null,"abstract":"<div><p>The main purpose of this paper is to collect from various sources over 3300 experimental values of K-shell fluorescence cross sections (<span><math><msub><mi>σ</mi><msub><mi>K</mi><msub><mi>β</mi><mrow><mn>1</mn><mo>,</mo><mn>3</mn></mrow></msub></msub></msub></math></span><em>,</em><span><math><mrow><msub><mi>σ</mi><msub><mi>K</mi><msub><mi>β</mi><mrow><mn>2</mn><mo>,</mo><mn>4</mn></mrow></msub></msub></msub><mo>,</mo><msub><mi>σ</mi><msub><mi>K</mi><msub><mi>α</mi><mn>1</mn></msub></msub></msub><mo>,</mo><msub><mi>σ</mi><msub><mi>K</mi><msub><mi>α</mi><mn>2</mn></msub></msub></msub><mo>,</mo><msub><mi>σ</mi><msub><mi>K</mi><msub><mi>β</mi><mn>1</mn></msub></msub></msub><mo>,</mo><msub><mi>σ</mi><msub><mi>K</mi><msub><mi>β</mi><mn>2</mn></msub></msub></msub><mo>,</mo><msub><mi>σ</mi><msub><mi>K</mi><msub><mrow><msup><mi>β</mi><mo>′</mo></msup></mrow><mn>1</mn></msub></msub></msub><mo>,</mo><mspace></mspace><msub><mi>σ</mi><msub><mi>K</mi><msub><mrow><msup><mi>β</mi><mo>′</mo></msup></mrow><mn>2</mn></msub></msub></msub><mo>,</mo><mspace></mspace><msub><mi>σ</mi><msub><mi>K</mi><mi>α</mi></msub></msub><mo>,</mo><msub><mi>σ</mi><msub><mi>K</mi><mi>β</mi></msub></msub></mrow></math></span> and <span><math><msub><mi>σ</mi><msub><mi>K</mi><mrow><mi>t</mi><mi>o</mi><mi>t</mi></mrow></msub></msub></math></span>) of elements with atomic number in the range <span><math><mrow><mn>16</mn><mspace></mspace><mo>≤</mo><mspace></mspace><mi>Z</mi><mspace></mspace><mo>≤</mo><mspace></mspace><mn>92</mn><mspace></mspace></mrow></math></span>by photo-ionization in multiple excitation energy ranging from 5.46 to 661.6 keV, which are presented in a form of 11 tables. The experimental values reported in 96 papers by numerous researches were published between 1985 and 2023. Therefore, by considering in the same tables a calculation of weighted average fluorescence cross section <span><math><mrow><mrow><mo>(</mo><msub><mi>σ</mi><msub><mi>K</mi><mi>j</mi></msub></msub><mo>)</mo></mrow><msub><mspace></mspace><mi>W</mi></msub></mrow></math></span>, with <span><math><mrow><mo>(</mo><mrow><mi>j</mi><mo>=</mo><msub><mi>β</mi><mrow><mn>1</mn><mo>,</mo><mn>3</mn></mrow></msub><mo>,</mo><msub><mi>β</mi><mrow><mn>2</mn><mo>,</mo><mn>4</mn></mrow></msub><mo>,</mo><msub><mi>α</mi><mn>1</mn></msub><mo>,</mo><msub><mi>α</mi><mn>2</mn></msub><mo>,</mo><msub><mi>β</mi><mn>1</mn></msub><mo>,</mo><msub><mi>β</mi><mn>2</mn></msub><mo>,</mo><msub><mrow><msup><mi>β</mi><mo>′</mo></msup></mrow><mn>1</mn></msub><mo>,</mo><msub><mrow><msup><mi>β</mi><mo>′</mo></msup></mrow><mn>2</mn></msub><mo>,</mo><mspace></mspace><mi>α</mi><mo>,</mo><mi>β</mi><mspace></mspace><mrow><mtext>and</mtext><mspace></mspace><mtext>tot</mtext></mrow></mrow><mo>)</mo></mrow></math></span> for each element; a full study of these data is carried out. However, dividing the measured values <span><math><mrow><msub><mrow><mo>(</mo><msub><mi>σ</mi><msub><mi>K</mi><mi>j</mi></msub></msub><mo>)</mo></mrow><mrow><mi>E</mi><mi>x</mi><mi>p</mi></mrow></msub><mspace></mspace></mrow></math></span>by the weighted average <span><math><mrow><mrow><mo>(</mo><msub><mi>σ</mi><msub><mi>K</mi><mi>j</mi></msub></msub><mo>)</mo></mrow><msub><mspace></mspace><mi>W</mi></msub></mrow></math></span>, a new weighted means ratio <span><math><mrow><msub><mi>S</mi><mi>W</mi></msub><mo>=</mo><mrow><mo>(</mo><msub><mi>σ</mi><msub><mi>K</mi><mi>j</mi></msub></msub><mo>)</mo></mrow><msub><mspace></mspace><mrow><mi>E</mi><mi>x</mi><mi>p</mi></mrow></msub><mo>/</mo><mrow><mo>(</mo><msub><mi>σ</mi><msub><mi>K</mi><mi>j</mi></msub></msub><mo>)</mo></mrow><msub><mspace></mspace><mi>W</mi></msub><mspace></mspace></mrow></math></span>are also studied.</p></div>","PeriodicalId":55580,"journal":{"name":"Atomic Data and Nuclear Data Tables","volume":"159 ","pages":"Article 101662"},"PeriodicalIF":2.7000,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Atomic Data and Nuclear Data Tables","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0092640X24000275","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, ATOMIC, MOLECULAR & CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The main purpose of this paper is to collect from various sources over 3300 experimental values of K-shell fluorescence cross sections (, and ) of elements with atomic number in the range by photo-ionization in multiple excitation energy ranging from 5.46 to 661.6 keV, which are presented in a form of 11 tables. The experimental values reported in 96 papers by numerous researches were published between 1985 and 2023. Therefore, by considering in the same tables a calculation of weighted average fluorescence cross section , with for each element; a full study of these data is carried out. However, dividing the measured values by the weighted average , a new weighted means ratio are also studied.
期刊介绍:
Atomic Data and Nuclear Data Tables presents compilations of experimental and theoretical information in atomic physics, nuclear physics, and closely related fields. The journal is devoted to the publication of tables and graphs of general usefulness to researchers in both basic and applied areas. Extensive ... click here for full Aims & Scope
Atomic Data and Nuclear Data Tables presents compilations of experimental and theoretical information in atomic physics, nuclear physics, and closely related fields. The journal is devoted to the publication of tables and graphs of general usefulness to researchers in both basic and applied areas. Extensive and comprehensive compilations of experimental and theoretical results are featured.