The same sherd was analyzed using a scanning electron microscope with energy dispersive spectroscopy (SEM-EDS) and a micro X-ray fluorescence tube attached to a scanning electron microscope (Micro-XRF-SEM) to compare the effectiveness of elemental detection of iron-based pigment. To enhance SEM-EDS mapping, the sherd was carbon coated. The carbon coating was not required to produce Micro-XRF-SE...

Grazing-exit x-ray fluorescence (GE-XRF) and micro x-ray fluorescence (micro-XRF) methods were applied to chemical microchips as a detection method. Since an energy-dispersive x-ray detector was used, the simultaneous detection of multiple elements was possible. An analyzing region was especially designed on the microchip so that a sample solution could be dried and concentrated in a suitable a...

Hanan Selman Hessan and Ahmed Mohammed Abbas 563 Abstract Immune status was examined after tonsillectomy operations in 30 children with recurrent acute tonsillitis, their ages ranged between 3-10 years, were clinically diagnosed by ENT surgeon at AlHilla General Teaching Hospital and 10 apparently healthy children were included as a control in the study which lasted from February to May 2011 .I...

As I have discussed in the last chapter, our goal here is not to elucidate XRF for the entire scientific community – this has been done admirably by others – but to translate the physics, mechanics, and art of XRF for those in archaeology and geoarchaeology who use it as one of the many tools to explain the human past in twenty-first century archaeology. While not a simple exercise, it has util...

هديکچ ت یحارط یارب ديدج شور کي هلاقم نيا رد تيوق ارا یطخ زاف اب هدرتسگ هدننک ئ يم ه دوش . شور نيا تيوقت و لاسروسنارت لاتيجيد رتليف یژولوپوت نيب تهابش یانبم رب يم هدرتسگ هدننک دشاب . نيا یانبم رب رواجم هقبط ود نيب ريخات رادقم و هدننک تيوقت زا هقبط ره نيگ یژولوپوت رتليف هيروف طسب زا هدافتسا اب Raise Cosine يم نييعت یروط یسناکرف هلصاف رد هک دوش 0-40 GHz تيوقت یطخ زاف هصخشم یاراد هدننک دشاب ه...

* لوئســ م هدنســ يون : ،نارــ هت ناــ بايخ ،رســ نارهت ناــ بايخ رسنارهت ميرك هاگنامرد ،رفولين راولب ،بيغتسد نفلت : 44506655 email: [email protected] فده و هنيمز : اب نمزم سامت تارثا لاّلح اه ناسنا تملاس رب يلآ ي هـتفرگ رارـق يسررب دروم فلتخم تاعلاطم رد اه اب سامت نيب هجوت لباق طابترا رگناشن هك لاّلح اه تيرفنولورمولگ و تسا هدوب اه . ركراـم يسررب هعلاطم نيا زا فده يويلك تيمس هب ساسح يرا...

Lead exposure is widespread among industrial populations in the United States. X-ray fluorescence (XRF) analysis of the lead content of bone offers a promising approach to acquisition of individualized data on chronic lead absorption in occupationally exposed populations. Dosimetric data obtained by XRF will permit accurate definition of dose-response relationships for such chronic consequences...

Micro-XRF analysis provides us with elemental maps, which are very useful for understanding the samples under test. Usually, scanning-type elemental mapping is performed. That means, a sample stage is scanned to a fixed X-ray micro beam. XRF analysis is performed at the scanned points, leading to 2D elemental mapping. One of the drawbacks of this technique is the long acquisition time depending...

صلاخلا ــ ة : مت ةقرولا هذه يف ءاشنإ يف هدعاسملل مدقتم ماظن بناوج ذيفنتو ميمصت ضرع قتو و مي ءادأ حيحصت تارفش لأا ءاطخ ةليلق لا ةناتم ، ةينبم ىلع ءوفاكتلا رايتخا . موقي امه نيتيسيئر نيتفيظوب ةساردلا هذه يف مدقتملا ماظنلا : 1 ادأ باسحل ةيزاوتملا هاآاحملا ء تارفش حيحصت لأا ءاطخ ةليلق نمزب ةفاثكلا ادج ريصق ةنراقم ةمظنأب ةاآاحملا ةدوجوملا . 2 ةليلق ءاطخلأا حيحصت تارفشو فعضلا قطانم صحف نع ة...

X-ray fluorescence (XRF), a rapid, noninvasive, low-radiation-dose method of measuring bone lead content, has emerged as a promising tool for providing an integrated estimate of low-level lead accumulation in epidemiological studies. Our group has settled on an XRF instrument that utilizes K X-rays (K-XRF) and normalizes the measurement to bone calcium. The unit of measurement provided is in mi...