Development and simulation of multi-diagnostic Bayesian analysis for 2D inference of divertor plasma characteristics
Development and simulation of multi-diagnostic Bayesian analysis for 2D inference of divertor plasma characteristics
复制标题
用于偏滤器等离子体特性二维推断的多重诊断贝叶斯分析的开发和模拟
DOI:
10.1088/1361-6587/ab759b
复制
发表时间:
2020
影响因子:
2.2
通讯作者:
Bowman C
中科院分区:
文献类型:
--
作者:
Bowman C
We present results of the design, implementation and testing of a Bayesian multi-diagnostic inference system which combines various divertor diagnostics to infer the 2D fields of electron temperature T e, density n e and deuterium neutral density n 0 in the divertor. The system was tested using synthetic diagnostic measurements derived from SOLPS-ITER fluid code predictions of the MAST-U Super-X divertor which include appropriate added noise. Two SOLPS-ITER simulations in different states of detachment, taken from a scan of the nitrogen seeding rate, were used as test-cases. Taken across both test-cases, the median absolute fractional errors in the inferred electron temperature and density estimates were 10.3% and 10.1% respectively. Differences between the inferred fields and the test-cases were well explained by solution uncertainty estimates derived from posterior sampling. This work represents a step toward a larger goal of obtaining a quantitative, 2D description of the divertor plasma state directly from experimental data, which could be used to gain better understanding of divertor physics phenomena.
登录
查看更多内容
影响因子:
1.6
作者:
O. Février;C. Theiler;H. D. Oliveira;B. Labit;N. Fedorczak;A. Baillod
通讯作者:
A. Baillod
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
J. Hawke;R. Scannell;J. Harrison;R. Huxford;P. Bohm
通讯作者:
P. Bohm
影响因子:
1.5
作者:
W. Morris;J. Harrison;A. Kirk;B. Lipschultz;F. Militello;D. Moulton;N. Walkden
通讯作者:
N. Walkden
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
J. Harrison;D. Moulton;M. Carr;I. Chapman;D. Keeling;A. Kirk;N. Walkden
通讯作者:
N. Walkden
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
O. Ford;J. Svensson;M. Beurskens;A. Boboc;J. Flanagan;M. Kempenaars;D. McDonald;A. Meakins;J. Contributors
通讯作者:
J. Contributors