X-ray photoelectron spectroscopy

of 5 kV. The powder samples (3-5 mg) were placed on a double sided carbon sticky tape which were mounted on a sterilized metal stubs and were coated with a gold/palladium alloy (10 nm thick) using a high resolution sputter coater (EM Technologies Ltd., Kent, England). The SEM images were observed and captured at different magnification levels. Crystallinity by X-ray powder diffraction (XRPD) The crystallinity of the supplied and spray-dried powder samples was determined using an X-ray powder diffractometer (PANalytical X’Pert PRO MPD PW3040/60 XRD, Netherlands) equipped with a rapid real time multi-strip X’Celerator detector Cu Kα radiation (40 kV voltage and 40 mA current) source. The powder sample was loaded in an aluminium sample holder and scanned over a range of 5-35° (2θ) at ambient conditions. PANalytical High Score software was used to analyse the collected results. Surface composition by X-ray photoelectron spectroscopy (XPS) The XPS analysis of the spray-dried powders was performed using a Kratos Axis Ultra Spectrophotometer (Kratos Analytical, Manchester, UK) equipped with a monochromatized aluminium X-ray source at a power of 140 W (10 mA and 14 KV). A small quantity of each powder sample was filled into shallow wells of sample holders and the spectra were collected using an analysis area of 700 × 300 μm at a sampling depth of 5-10 nm. Charging of the samples during irradiation was compensated by an electron flood gun in combination with a magnetic immersion…

A hero can be classified by many things. A hero can be superman, a police officer, and even your mom, but what makes a hero. Is it someone who can fly or shoot laser beams from their eyes or someone who saves a baby from a burning building. I’ll admit some of these characteristics are far-fetched since I don’t know anyone who can fly or randomly saves babies on a normal day. All heroes, including super ones all, have something in common, they're admired for their courage or an outstanding thing…

Nearly all ancient societies practiced body modification through either piercingss or tattoos. These ancient practices are becoming ever more present in our modern Canadian society, especially tattoos. One writer says, “Permanent tattooing is the process of body modification by deposition of a pigment into the dermis” (Simunovic and Shinohara 525). In the past three decades, magnetic resonance imaging (MRI) has become increasingly popular in the medical field. Magnetic resonance imaging is a…

allowing for organelles, such as mitochondria, to be seen in detail for the first time. Unlike light microscopy, TEM uses a beam of electrons, denoted as a cathode ray, to scan samples. While the traditional optical microscope is restricted in resolution by the wavelength of…

energy that the sun’s core presents, and the atoms in each consecutive level of our star as the light attempts to outflow. “together these efforts channeled the combined expertise of dozens of astronomers, computational physicists, and atomic physicists into diving with unprecedented precision how atoms in the layers of the sun and other stars interact with the light trying to escape” (James). In 2003, Yu had taken his career to join forces with prestige medical physicists; however, he sustained…

doctor (MD) or doctors of osteopathic medicine (DOs) who specialize in using medical imaging techniques that help diagnose and treat diseases and injuries. The medical imaging that they use would be x-rays, CTs,…

The patient's examination was started on the control panel computer with PA chest examination and wall stand selected. The DR central ray (CR) was horizontal and perpendicular to the wall stand detector with a focus film distance (FFD) of 180cm (Sloane et al, 2010). An FFD of 180 cm is recommended as it reduces the magnification of the heart, and reduces the radiation dose to the patient (Campeau and Fleitz, 2010). A focused grid is inserted into the moving grid mechanism of the wall stand and…

to ask the following patients to remove before radiographs are taken & why: a) Adults There are a few thinks that have to be moved before x-rays are taken because they are directly in the way of the x-ray holder and may affect the position of holder if not removed like glasses; phones of Bluetooth accessories or hair accessories or they can affect the quality of image like jewellery; tongue or nose piercings; hair accessories; dentures; chewing gum or hearing aids. b) Children & young…

master’s. Those costs vary to which school you choose. You need an internship or shadowing that allows you to learn and work under the supervision of a professional. This job you need to pass the licensure examination to become licensed and be able to work in a dental office. Yes, because there is always need technology and skills. The technology used is are hand, power tools and how to use x-ray equipment. You have to both communicate orally and in writing. You have to educate the patients to…

Problem: Swedish American Medical Center/Belvidere (SAMCB) is a smaller hospital in a neighboring town that Swedish American Health System in Rockford Illinois owns. At SwedishAmerican Medical Center/Belvidere, we currently have one Philips x-ray room and one AMX portable x-ray machine. The medical center only has one computed radiology (CR) laser reader. The x-ray room and portable x-ray both utilize this (CR) laser reader. If the laser reader happens to break down, we have no way of…