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Obtaining absolute spatial flux measurements with a time-resolved pinhole camera

التفاصيل البيبلوغرافية
العنوان: Obtaining absolute spatial flux measurements with a time-resolved pinhole camera
المؤلفون: D. L. Fehl, John L. Porter, Walter W. Simpson, George C. Idzorek, Kevin Baker, L. P. Mix, Mark F. Vargas, R. E. Chrien, Chris Deeney, Gordon A. Chandler, L. E. Ruggles
المصدر: Review of Scientific Instruments. 70:2012-2015
بيانات النشر: AIP Publishing, 1999.
سنة النشر: 1999
مصطلحات موضوعية: Physics, business.industry, Bolometer, Antenna aperture, Radiation, law.invention, Optics, law, Hohlraum, Z-pinch, Pinhole camera, Plasma diagnostics, business, Instrumentation, Diode
الوصف: A technique is described to determine the spatial x-ray flux emitted from a hohlraum wall and subsequently transmitted through a diagnostic hole. This technique uses x-ray diodes, bolometers, and a time-resolved pinhole camera to determine the spatial flux of x rays emitted through a hohlraum’s diagnostic hole. The primary motivation for this analysis was the relatively long duration, nearly 100 ns, of the x-ray drive present in z-pinch driven hohlraums. This radiation causes plasma to ablate from the hohlraum walls surrounding the diagnostic hole and results in a partial obscuration that reduces the effective area over which diagnostics view the radiation. The effective change in area leads to an underestimation of the wall temperature when nonimaging diagnostics such as x-ray diodes and bolometers are used to determine power and later to infer a wall temperature. An analysis similar to the one described below is then necessary to understand the radiation environment present in x-ray driven hohlraums whe...
تدمد: 1089-7623
0034-6748
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::9c400ec18f278e0a3d396be25538ed0c
https://doi.org/10.1063/1.1149703
رقم الأكسشن: edsair.doi...........9c400ec18f278e0a3d396be25538ed0c
قاعدة البيانات: OpenAIRE
الوصف
تدمد:10897623
00346748