PPT- Comparative Bullet Lead and Antimony Analysis using XRF a

Rob Harvey Nate Birth When the physical markings of a fired bullet recovered from a crime scene are too mutilated for visual comparison or the firearm used in the crime is not recovered the bullet can be compared with other bullets associated with a suspect by its elemental composition Peters 2002. The phenomenon is widely used for elemental analysis How does XRF work When high energy photons xrays or gammarays are absorbed by atoms inner shell electrons are ejected from the atom becoming photoelectrons This leaves the atom in an excited state Antimony ores are mined and then mixed with other metals to form antimony alloys or combined with oxygen to form antimony oxide Little antimony is currently mined in the United States It is brought into this country from other countries for process Material Science 3344. By: Raul Martinez. Components of a bullet. The Term “Bullet” is commonly used to describe the cartridge, when in fact, it actually only refers to the projectile.. The correct terminology for the cartridge components are bullet, case, primer, and propellant or gunpowder.. R.A. Prosser, S.H. Cohen, and R.A. . Segars. (2000). "Heat as a Factor of Cloth Ballistic Panels by 0.22 Caliber Projectiles," Textile Research Journal, Vol. 70: pp. 709-723.. Data Description. Response: V50 – The velocity at which approximately half of a set of projectiles penetrate a fabric panel (m/sec). JOHN LAWRENCE, CEO. RS – NOVEMBER, 2012. USAC CORPORATE . OVERVIEW. 2. RS – NOVEMBER, 2012. USAC . is a rapidly growing natural resource company that. . is making a concerted effort to increase its raw material supply from Mexican operations by new mining, additional milling and smelting capacity, and third party raw material feeds. . Ellen . Chittester. Antimony. Antimony is also identifiable by its symbol Ab, and its atomic number 51 on the periodic table of elements.. Uses. it is found in nature mainly as the sulfide mineral stibnite. Antimony compounds have been known since ancient times and were used for cosmetics; metallic antimony was also known, but it was accidentally identified as lead. It was established to be an element around the 17th century.. Data collected at GSECARS, APS 13-ID-E with ~2 x 2 micron X-ray beam at 18 keV. . 1 x 1 mm area, 2 x 2 . m. m pixels, 10 ms per pixel (~45 minute acquisition).. Using XIA . xMAP. (1 . m. s peaking time) and Xspress3 electronics.. The comparative can sometimes feel like a hard topic to tackle because you’ve never had a question like this before. . But try not to be . daunted! . Introduction to Comparative. Comparative simply means . Maurits. . Bruggink. , Secretary General,. Critical Raw Material Alliance. About Us . The Critical Raw Materials Alliance (CRM Alliance) has been created by industry to advocate the importance of CRMs for the European economy and to promote a strong European CRM policy.. And there are a few more levels. And another bullet goes here. Introduction. Click to edit text and use Arial font. Tips. Proofread for spelling and grammar. Keep it simple. Avoid reading from your slides. Acquiring Comparative Commonsense Knowledge from the Web Niket Tandon Max Planck Institute for Informatics Saarbrücken, Germany Joint work with: Gerard de Melo , Gerhard Weikum Comparative Commonsense Explaining. For our product testing we decided to test if the magic bullet could prepare any meal in ten seconds or less. So we went to the official magic bullet website and we got some recipes to test. Then we went through the commercial and we picked out any hidden messages we could find and we brought you this presentation so enjoy . P. L. M. Co., Ltd.. Germanium Dioxide_ GeO2. P. L. M. Co., Ltd.. Antimony Ethylene Glycol_ Sb2(C2H4O2)3. Product Name: Antimony Ethylene Glycol . Synonym: Antimony . Triethylene. . Golcol. (DLF ATG), . ��ANTIMONY AND COMPOUNDS iii�� &#x/MCI; 0 ;&#x/MCI; 0 ;FOREWORDThis toxicological profile is prepared in accordance with guidelines* developed by the Agency for Tox