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Taray, I hope they are using just the steel cluster bomb casings and not an actual BLU-63 bomblet as they are an extremely dangerous UXO and are never to be handled even by EOD personnel. https://www.faire.com/brand/b_172b569b The price is pretty high here. Dud
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nice testing. I always ask my dentist for my old gold crowns when they are replaced. he is nice enough to give me a copy of the data sheet showing it composition. p
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This Pr is a green oxide when exposed to air. Historically from a yellow pigment to modern technology
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Xrf tableware Here is a scan of ceramic mugs They came in a set of various colors Not sure of the origin . My wife bought them because they look kinda cute and were cheap many years ago. Xrf are for blue,yellow,orange and purple mugs Results The common elements detected in all are Zn and zirconium These could be from the additives in the ceramic mixture giving it a white interior .? Different pigments are linked to various elemental composition These elements can potentially leak out into the drinking cup The amount of leaching out depends on factors such temperature,acidity or solute content of liquid used . Some people like their coffee in RO water to get the maximum taste and fragrance. RO or distilled will leached out minerals from the vessel down the concentration gradient. Improper firing implies loosely adherent glaze New cups more leaching than old cups Findings Blue Cobalt is what makes the majority of glazes blue Only small amounts needed to stain a glaze blue Yellow Uranium oxide (yellow cake)popular during the 20th century Today yellow is made through a combination of colours Cadmium noted here Orange True orange is not easy to achieve with raw glaze materials.Glazes with several colors can move into the orange range .Barium giving a bright color enhancement. This may explain the several peak formations in orange spectrum Tin noted in violet cup Tin oxide pink tinge most likely giving violet after some reactions No lead in all mugs Articles on pigments and ceramics . Today UMF is used to calculate glaze composition which beyond our level of understanding. Most of these elements are either oxides or carbonates and fall in the middle of the periodic table Mca files to follow Some color quotes Colours are the deeds and sufferings of light Goethe The blue bird carries the sky on his back Henry David Thoreau Violet Forgiveness is the fragrance the violet sheds on the heel that has crushed it Mark Twain Orange is the happiest color Frank Sinatra And Life is dull without colours Taray
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My Rn-222 is about 2pCi/l right now but I think I’ll wait and see in another 3 or 4 decades or so before canceling the insurance. Should I sue the builder? Just asking for a friend. Dud Life isn't about how to survive the storm, but how to dance in the rain
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Taray, Also in the Saffordite is Zr at 15.79 and possibly a small Y at 14.96 keV. The Tektitebg shows Fe, Rb, Sr, Ba, possibly Y and Ti, Dud
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Taray, Looking at your optical spectra it looks like at least three of the rounded peaks look to be Sm. Dud
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Pure metals for calibrations and experiments
I was looking at buying some silver yesterday from JM Bullion and noticed they have 1oz bars of other metals. I ordered ytterbium, yellow niobium, iron, and molybdenum and a 1-lb copper bar, along with silver coins and goldbacks. They have a deal for new customers, you can buy 10oz of silver at spot rate which is a good deal. And free shipping. As well as what I ordered, they also sell purple niobium, tantalum, and some other more exotic elements too. Likely will order those at a later date. The purple niobium was out of stock.
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I bought a small Tektite at a rock shop a few weeks ago. I am not a rock collector, but I had read about Tektites and this one intrigued me because it was so darkly colored. The rock shop had a drawer of them labeled “China Tektites”. It weighs about 10g, SG of 2.4. It is very slightly radioactive (detectable with scaler and pancake, but not by ear). Doing a little research, I believe it is an Indochinite based on its appearance and the fact they are very common, and many similar ones are for sale on ebay. Apparently, people have been pulling them out of their farm fields and rice paddies for years in S. China and Vietnam. They pile them up to be sold to brokers, and then resold to rock shops, and finally to crazy people. Indochinites are one of a variety of Tektites associated with the largest and youngest Tektite strewnfield on Earth, the Australasian Strewnfield. According to Wikipedia, it covers 10 to 30% of the Earth’s surface and has been dated to 788,000 years ago. Despite the relative youth and large size of this strewnfield, the location of the source crater has not yet been found. This makes it a bit of a mystery among those in this scientific specialty. Metallic Iron is rarely found in surface or crustal rocks, if you do find some, it is usually some man-made artifact. If it is an Fe/Ni metal alloy (in the range of 5-25% Ni), you have found an iron meteorite. If it is a stone containing Fe/Mg/Si/Ni spheroids (chondrules) it is a Chondritic meteorite. Tektites are formed from local material that is melted and blasted into the upper atmosphere by a meteorite impact. Any meteoric material will be greatly diluted by the terrestrial material in the blast melt. Some Australasian Tektites are known to be relatively Nickel rich (.04%), but it has been a subject of debate whether this Ni content has a significant chrondritic (extraterrestrial) origin or not. Some of the links (abstracts only) below take one side or the other of the argument. I was curious about this. The Ni component is much lower, probably about 2 orders of magnitude, from my earlier XRF work with Iron meteorites. I was concerned about Ni interference from my Am241 buttons with my set-up. So, I asked Charles Young if he would run XRF on the Tektite to see if any Ni could be detected. Charles did find both Fe and Ni, and the ratio looks very similar to scans of iron meteorites that I did a few years back. However, if the experts can’t decide if such Ni is from here or there, I am unlikely to prove it one way or the other. Comment? Suggestions? Any ideas how we to pursue this further? https://en.wikipedia.org/wiki/Australasian_strewnfield https://www.sciencedirect.com/science/article/pii/S001670372300457X https://www.sciencedirect.com/science/article/abs/pii/0016703764900444 https://www.sciencedirect.com/science/article/abs/pii/S0016703717304945
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beginner question
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hi: I was curious as to what are typical xray requirements: Roughly what kV x.xx mA y.yy seconds of xray exposure is needed for a typical xrf measurement ? p
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This is an medicine intravenous ampoule commonly used in OT Unsure of its physical properties of being plastic or glass? Transparent hard and light weight The rubber and metallic sealant on the lid was removed Ampoule washed and dried with running water Xrf show possibility of arsenic If one to recall from previous uranium glass marble xrf,arsenic was detected Arsernic is added to glass for prevention of bubbling during manufacture. Is this still practiced today?
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