Americium. A completely man-made radioactive actinide with atomic symbol Am, atomic number 95, and atomic weight 243. Its valence can range from +3 to +6. Because of its nonmagnetic ground state, it is an excellent superconductor. It is also used in bone mineral analysis and as a radiation source for radiotherapy.
Plutonium. A naturally radioactive element of the actinide metals series. It has the atomic symbol Pu, atomic number 94, and atomic weight 242. Plutonium is used as a nuclear fuel, to produce radioisotopes for research, in radionuclide batteries for pacemakers, and as the agent of fission in nuclear weapons.

Effect of I,25-dihydroxycholecalciferol in renal osteodystrophy. (1/22)

A 23-year-old man with medullary cystic disease had been undergoing hemodialysis for 5 years and had become confined to a wheelchair because of renal osteodystrophy. He was treated with 125-dihydroxycholecalciferol, 2.0 mug (later 1.0 mug) three times a week, administered by way of the venous end of the dialysis machine. Within 1 month bone pain lessened and his ability to stand and walk improved. By 3 months he was walking short distances and by 5 months, long distances. Calcium balance was near zero before treatment and was strongly positive during treatment. Bone mineral content in the lower femur, measured by photon absorptiometry, increased at a rate of 32.2% per year. In contrast, 26 other patients on long-term hemodialysis had a mean loss of bone mineral content of 14.0% per year. Radiographs taken during treatment showed a decrease in subperiosteal bone resorption and healing of a pseudofracture. A significant decrease in the mean serum alkaline phosphatase value was noted during treatment, but no significant changes in mean serum calcium or phosphorus values were seen.  (+info)

Thenar muscle blood flow and bone mineral in the forearms of lumberjacks. (2/22)

Forty lumberjacks who had used a chain saw for 0-20 years and who had no general disease affecting the bones were studied by measuring the thenar muscle blood flow of both hands by the 133-Xe local clearance method. Bone mineral in the left forearm in the region of cancellous and cortical bone was assessed by the 241-Am gamma ray attenuation method. Virbration was found to decrease the blood flow in the saw-bearing left hand compared with the right hand of the lumberjacks. The bone mineral density (g/vm-3) was lower in the forearm bones of the lumberjacks than in controls of the same age with healthy bones. Moreover the poorer the thenar muscle blood flow, the greater was the decrease in the mineral density of the distal radius. Measurement of the mineral density of the forearm bones by the gramma ray attenuation method can be used for early detection of bone lesions in traumatic vasospastic disease.  (+info)

Bone mineral content determined by functional imaging. (3/22)

Quantitation of bone mineral by photon absorptiometry is a simple and accurate method for determining changes in bone volume and mineral content in serial studies. An extension of the scintillation camera method for studying such changes in the calcaneous is described. This technique is applicable to large areas of bone, thereby minimizing the effect of repositioning errors. Using a 40-mCi 241Am sheet source, a 2.1% reproducibility in bone phantoms and a 2.4% reproducibility in normal patients was achieved. Several case studies are presented to illustrate sensitivity and clinical application of the method. Although bone mineral determinations are now performed in a limited number of health care facilities, the scintillation camera method described in this report could increase the availability of these determinations significantly.  (+info)

Radiation hazards from 241Am sources used in thyroid studies. (4/22)

The neutron and gamma photon doses corresponding to the neck and eye level from an 241AmO2 source used in thyroid studies have been theoretically estimated. The radiation hazard to the patient is found to be not significant.  (+info)

Worldwide bioassay data resources for plutonium/americium internal dosimetry studies. (5/22)

Biokinetic models are the scientific underpinning of internal dosimetry and depend, ultimately, for their scientific validation on comparisons with human bioassay data. Three significant plutonium/americium bioassay databases, known to the authors, are described: (1) Sellafield, (2) Los Alamos and (3) the United States Transuranium Registry. A case is made for a uniform standard for database format, and the XML standard is discussed.  (+info)

A device for in vitro irradiation with alpha-particles using an alpha-emitting radioactive source. (6/22)

A device to irradiate a monolayer of cultured cells with alpha-particles using an Am-241 alpha-source (33.4 MBq) was designed to investigate RBEs of alpha-particles in cell killing, induction of chromosome aberration, mutagenic changes and transformation. This device can be used conveniently in a common laboratory by a small number of researchers without any limitation of machine time. The device performs as follows: (1) The energy of alpha-particles at the entrance of the cell layer is 3.20 MeV with a standard deviation of 0.25 MeV, (2) the incident angle to the cell layer is 82.8 degrees with a standard deviation of 3.2 degrees, (3) the fluence rate is 4.7 x 10(5) cm-2.min-1, (4) the average LET infinity for a cell layer 5 microns thick is 138 keV/micron, (5) the average dose rate for a cell layer 5 microns thick is 0.10 Gy/min., (6) a temperature and CO2 concentration conducive to cell cultivation are maintained during irradiation.  (+info)

Separation techniques for quantification of radionuclides in environmental samples. (7/22)

 (+info)

Investigation of activation rate uniformity in a prompt-gamma rays IVNAA facility. (8/22)

The preliminary design studies for developing a prompt-gamma rays in vivo neutron activation analysis facility are in construction at Neutron Activation Research Centre of Ferdowsi University of Mashhad. In this work, activation rate distribution is studied in different bilateral configurations in order to reduce the CV of activation rate distribution throughout the body to less than 10%. It means that the maximum RMS deviation from the mean value of distribution must be smaller than 0.5%. The best case includes two pairs of (241)Am-Be neutron sources. Each pair (with 70 cm distance between two sources) is positioned within up and down 40 x 110 cm(2) area graphite collimators. Also, four moderator/reflector objects are added to transversal body surfaces with 5 cm thick water and 3 cm thick graphite. The proper thickness of polyethylene pre-moderators is chosen 8 mm. The RMS deviation of distribution is 0.3% with the mean activation rate of 1.85 x 10(-6) cm(-3).  (+info)

Americium (Am-241) is a radioactive metallic element with the symbol "Am" and atomic number 95. It is a member of the actinide series and does not occur naturally, but can be produced in nuclear reactors. Americium-241 is most commonly used as a source of ionizing radiation in smoke detectors.

It is important to note that handling and storing americium requires proper training and equipment due to its radioactive nature. Improper handling or disposal can result in serious health risks, including radiation exposure and contamination.

Plutonium is not a medical term, but it is a chemical element with the symbol Pu and atomic number 94. It is a dense, silvery-red, transuranic radioactive metal that occurs in minute quantities naturally as an intermediate product of uranium decay, or can be produced by neutron capture in uranium-238.

Plutonium is highly toxic and radioactive, and it has been classified as a Category II carcinogen by the International Agency for Research on Cancer (IARC). It is mainly used in the production of nuclear weapons and as fuel in nuclear reactors. Medical uses of plutonium are limited due to its high radioactivity and toxicity.

In medicine, plutonium-210 has been used in some cancer therapies, such as brachytherapy, where a small amount of the isotope is implanted directly into the tumor. However, due to its high radioactivity and potential for causing radiation damage to surrounding tissues, its use in medicine is highly regulated and relatively rare.

... (III) oxide is a red-brown solid with a melting point of 2205 °C. Americium(IV) oxide is the main form of solid ... Americium is used in the most common type of household smoke detector, which uses 241Am in the form of americium dioxide as its ... Borides of americium include AmB4 and AmB6. The tetraboride can be obtained by heating an oxide or halide of americium with ... Americium is also one of the elements that have theoretically been detected in Przybylski's Star. Americium has been produced ...
Americium(III) oxide is a red-brown solid with a melting point of 2205 °C. Americium(IV) oxide is the main form of solid ... Borides of americium include AmB4 and AmB6. The tetraboride can be obtained by heating an oxide or halide of americium with ... Three americium oxides are known, with the oxidation states +2 (AmO), +3 (Am2O3), and +4 (AmO2). Americium(II) oxide was ... Americium compounds are compounds containing the element americium (Am). These compounds can form in the +2, +3, and +4, ...
... can refer to: Americium(II) chloride, AmCl2 Americium(III) chloride, AmCl3 This set index article lists ...
... may refer to: Americium(II) bromide Americium(III) bromide This set index article lists chemical compounds ...
... (241 Am , Am-241) is an isotope of americium. Like all isotopes of americium, it is radioactive, with a half-life ... Americium-241 has the same general hazards as other americium isotopes: it is both extremely toxic and radioactive. Although α- ... 241 Am is the most common isotope of americium as well as the most prevalent isotope of americium in nuclear waste. It is ... The process for making the americium used in the buttons on ionization-type smoke detectors begins with americium dioxide. The ...
... is an inorganic chemical compound of americium metal and fluorine with the chemical formula AmF 6. It is ... Synthesis by fluorination of americium tetrafluoride was unsuccessfully attempted in 1990. A thermochromatographic ... Chemical Thermodynamics of Americium. Newnes. p. 114. ISBN 978-0-444-59935-3. Retrieved 29 March 2023. Прусаков, Владимир ... Americium compounds, Fluorides, Metal halides, Hexafluorides, Hypothetical chemical compounds, Theoretical chemistry, All stub ...
The demand for americium dioxide stems from the difficulty of storing the element americium as a solution of americium(III) ... Americium dioxide (AmO2) is a black compound of americium. In the solid state AmO2 adopts the fluorite, CaF2 structure. It is ... The slurry of americium oxalate and oxalic acid is next agitated before the americium oxalate is filtered out, washed with ... Americium dioxide is the most widely used americium compound in ionising smoke detectors. The dioxide form is insoluble in ...
... may refer to: Americium dioxide Americium(III) oxide Americium(III) hydroxide This set index article lists ...
... may refer to: Americium(II) iodide Americium(III) iodide This set index article lists chemical compounds ...
... may refer to: Americium(III) fluoride Americium(IV) fluoride Americium hexafluoride (hypothetical) This set ...
... or americium dibromide is the chemical compound composed of an americium cation in the +2 oxidation state ... Penneman, R. A. and Keenan T. K. The radiochemistry of americium and curium, University of California, Los Alamos, California, ... Americium compounds, Bromides, Actinide halides, All stub articles, Inorganic compound stubs). ...
Americium-243 has a mass of 243.06138 g/mol and a half-life of 7,370 years, the longest lasting of all americium isotopes. It ... Americium has an atomic number of 95 (the number of protons in the nucleus of the americium atom). Despite 243 Am being an ... The external irradiation risk for the other two americium isotopes (241Am and 242mAm) is less than 10% of that for americium- ... A chemical removal of americium from reworked plutonium (e.g. during reworking of plutonium pits) may be required. Americium- ...
... is the inorganic compound with the formula AmI2. It is a black solid which crystallizes in the same motif ... Baybarz, R. D.; Asprey, L. B.; Strouse, C. E.; Fukushima, E. (1972). "Divalent Americium: The Crystal Structure and Magnetic ... Americium compounds, Iodides, Actinide halides, All stub articles, Inorganic compound stubs). ...
... is the inorganic compound with the formula AmF4. It is a tan solid. In terms of its structure, solid ... Americium compounds, Fluorides, Actinide halides, All stub articles, Inorganic compound stubs). ...
... or americium sesquioxide is an oxide of the element americium. It has the empirical formula Am2O3. Since ... Americium(III) oxide can be made by heating americium dioxide in hydrogen at 600°C. 2 AmO 2 + H 2 ⟶ Am 2 O 3 + H 2 O {\ ... ISBN 978-0-8493-0595-5. Chikalla, T.D.; Eyring, L. (January 1968). "Phase relationships in the americium-oxygen system". ... all isotopes of americium are only artificially produced, americium (III) oxide has no natural occurrence. The colour depends ...
... is an inorganic compound, a salt of americium and nitric acid with the chemical formula Am(NO3)3. The ... Americium(III) nitrate thermally decomposes to form americium(III) oxide.[citation needed] It forms crystal hydrates.[citation ... Reaction of americium and nitric acid: 8 Am + 30 HNO 3 ⟶ 8 Am ( NO 3 ) 3 + 3 N 2 O + 15 H 2 O {\displaystyle {\ce {8Am + 30HNO3 ... "ChemIDplus - 0025933533 - GMIZSJXFNCBKPE-UHFFFAOYSA-N - Americium nitrate - Similar structures search, synonyms, formulas, ...
... or americium trichloride is the chemical compound composed of americium and chlorine with the formula ... "Chemistry: Periodic Table: americium: compound data (americium (III) chloride)". WebElements. Retrieved 2008-06-24. Perry, Dale ... In the solid state each americium atom has nine chlorine atoms as near neighbours, at approximately the same distance, in a ... This can be used to remove americium from plutonium by melting the crude mixture together with salts such as sodium chloride. " ...
... , also known as dichloroamericium, is the chemical compound composed of americium and chloride with the ... Baybarz, R.D. (April 11, 1972). "The preparation and crystal structures of americium dichloride and dibromide". Journal of ... Americium compounds, Chlorides, Actinide halides, All stub articles, Inorganic compound stubs). ...
It was the first isolated sample of an americium compound, and the first americium compound discovered. Americium hydroxide is ... Americium(III) hydroxide is a radioactive inorganic compound with the chemical formula Am(OH)3. It consists of one americium ... Am(COO)2 → AmO2 The americium dioxide is heated again, to about 600 °C, in the presence of hydrogen, to produce americium(III) ... Am + (COOH)2 → Am(COO)2 The americium oxalate is then added to a platinum combustion boat to undergo calcination. The americium ...
... or americium triiodide is the chemical compound composed of americium and iodine with the formula AmI3. ... Americium(III) iodide can be prepared by reacting americium(III) chloride with ammonium iodide: AmCl3 + 3 NH4I → AmI3 + 3NH4Cl ... and Triiodides of Americium and Curium". Inorganic Chemistry. 4 (7): 985-986. doi:10.1021/ic50029a013. ISSN 0020-1669. S2CID ... Americium compounds, Iodides, Actinide halides, All stub articles, Inorganic compound stubs). ...
... or americium tribromide is the chemical compound composed of americium and bromine with the formula ... "WebElements Periodic Table » Americium » americium tribromide". Zachariasen, W. H. (1948-11-02). "Crystal chemical studies of ... Fried, Sherman (1951). "The Preparation of Anhydrous Americium Compounds". Journal of the American Chemical Society. American ... Americium compounds, Bromides, Actinide halides, All stub articles, Inorganic compound stubs). ...
... or americium trifluoride is the chemical compound composed of americium and fluorine with the formula ... Americium compounds, Fluorides, Actinide halides, All stub articles, Inorganic compound stubs). ...
Americium-241). Such nuclear batteries have been used for decades in spacecraft by all major spacefaring nations and some have ...
ISBN 978-1-136-29911-7. "Americium, Radioactive". TOXNET Toxicology Data Network. Archived from the original on 12 October 2016 ... Elements found in trace amounts include americium, antimony, arsenic, barium, bismuth, boron, cobalt, europium, gallium, ...
"95 Americium". Elements.vanderkrogt.net. Retrieved 2008-09-12. Marinsky, J. A.; Glendenin, L. E.; Coryell, C. D. (1947). "The ...
1944 Americium Americium is a synthetic element that has the symbol Am and atomic number 95. A radioactive metallic element, ... Americium was co-discovered by Glenn T. Seaborg, Ralph James, L. Morgan, and Albert Ghiorso during their work on the Manhattan ... "History of Americium". Travis Meuten. "Chemistry in its element - curium". Royal Society of Chemistry. "Jacob Marinsky; co- ... A radioactive metallic element in the actinide series, berkelium was first synthesized by bombarding americium with alpha ...
"Americium Power Source". thefutureofthings.com. 1 January 2019. Archived from the original on 10 August 2019. Retrieved 14 June ...
Despite having americium-241 in his bone marrow, bones and soft tissue (reduced by his decontamination treatment), McCluskey ... He became known as the 'Atomic Man'. McCluskey was exposed to at least 37 million becquerel (Bq) of americium-241 radioactivity ... Carbaugh, Eugene H. (July 14, 2014). The 1976 Hanford Americium Accident, Then and Now (PDF) (Speech). 59th Annual Meeting of ... "1976 Hanford americium accident". United States. doi:10.2172/6419623. OSTI 6419623. {{cite journal}}: Cite journal requires , ...
Trivalent actinides form ionic compounds with COT ligands, this can be exemplified by the reaction of americium triiodide with ... Baumgärtner, F.; Fischer, E. O.; Kanellakopulos, B.; Laubereau, P. (1966-01-07). "Tri-cyclopentadienyl-americium(III)". ...
Weigel, F.; Wittmann, F.D.; Marquart, R. (1977). "Americium monosilicide and "disilicide"". Journal of the Less Common Metals. ...
Americium(III) oxide is a red-brown solid with a melting point of 2205 °C. Americium(IV) oxide is the main form of solid ... Americium is used in the most common type of household smoke detector, which uses 241Am in the form of americium dioxide as its ... Borides of americium include AmB4 and AmB6. The tetraboride can be obtained by heating an oxide or halide of americium with ... Americium is also one of the elements that have theoretically been detected in Przybylskis Star. Americium has been produced ...
Exposure to very large amounts of radioactive americium may result in increased cancer risk. Americium has been found in at ... Very low levels of americium occur in air, water, soil, and food. ... What is americium?. Americium is a man-made radioactive chemical. Americium has no naturally occurring or stable isotopes. Two ... What happens to americium when it enters the environment?. *Americium released to the air (from nuclear weapon tests) will be ...
Information on arsenic, a potential agent for chemical terrorism. Provided by the Centers for Disease Control and Prevention (CDC).
This WebElements periodic table page contains the essentials for the element americium ... Americium: description Your user agent does not support the HTML5 Audio element. 🔊. The lustre of freshly prepared americium ... Americium is a component of the smoke detector above.. Americium appears to be more malleable than uranium or neptunium and ... Americium: history. Americium was discovered by Glenn Seaborg, Ralph James., L. Morgan, Albert Ghiorso in 1944 at USA. Origin ...
Detailed decay information for the isotope americium-234 including decay chains and daughter products. ... Americium Pictures Page. Al. Si. P. S. Cl. Ar. K. Ca. Americium Technical Data. Sc. Ti. V. Cr. Mn. Fe. Co. Ni. Cu. Zn. Ga. Ge. ... Isotopes of Americium (click to see decay chain):. 231Am 232Am 233Am 234Am 235Am 236Am 237Am 238Am 239Am 240Am 241Am 242Am 243 ... Americium Main Page. Black White Gray. B. C. N. O. F. Ne. ...
Detailed decay information for the isotope americium-238 including decay chains and daughter products. ... Americium Pictures Page. Al. Si. P. S. Cl. Ar. K. Ca. Americium Technical Data. Sc. Ti. V. Cr. Mn. Fe. Co. Ni. Cu. Zn. Ga. Ge. ... Isotopes of Americium (click to see decay chain):. 231Am 232Am 233Am 234Am 235Am 236Am 237Am 238Am 239Am 240Am 241Am 242Am 243 ... Americium Main Page. Black White Gray. B. C. N. O. F. Ne. ...
Detailed decay information for the isotope americium-243 including decay chains and daughter products. ... Americium Pictures Page. Al. Si. P. S. Cl. Ar. K. Ca. Americium Technical Data. Sc. Ti. V. Cr. Mn. Fe. Co. Ni. Cu. Zn. Ga. Ge. ... Isotopes of Americium (click to see decay chain):. 231Am 232Am 233Am 234Am 235Am 236Am 237Am 238Am 239Am 240Am 241Am 242Am 243 ... Americium Main Page. Black White Gray. B. C. N. O. F. Ne. ...
Americium. Another Berkeley Nobel Prize!. Albert Ghiorso at the Berkeleys Saturday Farmers Market The phone call came early ...
The Isolation of Microgram Amounts of Berkelium and Californium from Irradiated Americium. EUR 2578.. ... The Isolation of Microgram Amounts of Berkelium and Californium from Irradiated Americium. EUR 2578. [EU Other] ...
361799 Engineering Aspects of an Actinide/Lanthanide Separation Concept Based on the Oxidation of Americium ... higher oxidation states of americium can be prepared using sodium bismuthate and separated via solvent extraction using ...
Plutonium and Americium Contaminated Puncture Wound: Initial Treatment, Monitoring, Dosimetry and Medical Aspects. Published: ... Plutonium and Americium Contaminated Puncture Wound: Initial Treatment, Monitoring, Dosimetry and Medical Aspects. S J ...
Powered by Pure, Scopus & Elsevier Fingerprint Engine™ © 2023 Elsevier B.V. We use cookies to help provide and enhance our service and tailor content. By continuing you agree to the use of cookies. ...
Americium metal in glass ampoule and vial with label for collection and research. Element 95 sample ... Americium metal is highly radioactive, is the fourth synthetic element discovered in the late 1944 from Glenn Seaborg. ... Americium-241 was used in tiny amounts in very old smoke detectors for ionizing air. ... Americium metal is a silvery white solid material at normal pressure and temperature. ...
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What is Americium? What are its Physical, Chemical, Mechanical, Electrical and thermal properties? ... Americium metal is produced by bombarding Plutonium with Neutrons.. *Americium metal was discovered as a by-product while ... Americium metal is used in smoke detection alarms. * In the future, this metal has a potential to be used in batteries of ...
Auto-graded practice and assessment of Grade 9 Americium for in-class and distance learning. ...
Decode americium%27s from URL-encoded format with various advanced options. Our site has an easy to use online tool to convert ... Decode americium%27s from URL-encoded format. Simply enter your data then push the decode button.. americium%27s. For encoded ... americiums. Copy to clipboard. Decode files from URL-encoded format. Select a file to upload and process, then you can ...
Calculate the number of valence electrons in Americium using its electron configuration step by step. ... Valence Electrons in Americium (Am). Calculate the number of valence electrons in Americium using its electron configuration ... Valence Electrons in Americium. Determine the number of valence electrons in Americium (Am, Element 95) ... Calculate Electronic Configuration for Americium. Step 2: Identify the outermost electrons using the electronic configuration. ...
It carries the country name of my birth; Americium. A certain form of Americium is ideal for a type of nuclear solid fuel ... Petition for Americium Emergency Stockpile Posted by Gary Michael Church in categories: asteroid/comet impacts, business, ...
americium 95 Am curium 96 Cm berkelium 97 Bk californium 98 Cf ...
Americium, Radioactive *Caesium, Radioactive *Californium, Radioactive *Cesium, Radioactive *Cobalt, Radioactive *Curium, ...
... americium •Latium, solatium •lutetium, technetium •Byzantium • strontium • consortium •protium • promethium • lithium •alluvium ...
Atomic Number Name Symbol 89 Actinium Ac 13 Aluminum Al 95 Americium... ...
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; AMERICIUM 241; LIQUID PROPORTIONAL COUNTERS; NEPTUNIUM 237; ...
Transfer of americium-241 from food and water to organs and tissues of the crucian carp* (English) Free access ... The influence of Brazilian soils properties in Americium sorption. Wasserman, M.A.V. / Pereira, T.R. / Rochedo, E.R.R. / Sousa ... For the first two days after force-feeding, fishes excreted up to 80% of ingested americium, for four days - 98%. 241Am was ... Transfer of americium-241 from food and water to organs and tissues of the crucian carp* ...
  • Most americium is produced by uranium or plutonium being bombarded with neutrons in nuclear reactors - one tonne of spent nuclear fuel contains about 100 grams of americium. (wikipedia.org)
  • Following the lighter neptunium, plutonium, and heavier curium, americium was the fourth transuranium element to be discovered. (wikipedia.org)
  • Americium-241 was directly obtained from plutonium upon absorption of two neutrons. (wikipedia.org)
  • The lustre of freshly prepared americium metal is whiter and more silvery than plutonium or neptunium prepared in the same manner. (webelements.com)
  • Americium metal is produced by bombarding Plutonium with Neutrons. (comparenature.com)
  • These NDAs provide for the use of Pentetate zinc trisodium injection and for Pentetate calcium trisodium injection for treatment of internal contamination with plutonium, americium, or curium. (medscape.com)
  • Observational data were maintained in a US Registry of individuals with internal radioactive contamination primarily from acute occupational contamination with plutonium, americium, and, curium. (medscape.com)
  • Pentetate zinc trisodium injection and Pentetate calcium trisodium increase the rate of elimination of the radioactive materials plutonium, americium, or curium. (medscape.com)
  • These drugs, both based on diethylenetriamine pentaacetate (DTPA), are administered intravenously by a healthcare provider and can remove three radioactive elements: plutonium, americium, and curium. (nih.gov)
  • Preclinical research has shown that HOPO 14-1 can effectively remove many radioactive contaminants, including uranium and neptunium in addition to plutonium, americium and curium. (nih.gov)
  • In these conditions another uranium isotope, 236U, may be present together with very small amounts of the transuranic elements plutonium, americium and neptunium and the fission product technetium-99. (who.int)
  • Pentetate (diethylenetriaminepentaacetate) calcium trisodium (Ca-DTPA) and pentetate (diethylenetriaminepentaacetate) zinc trisodium (Zn-DTPA) have been shown to be effective in treating internal contamination with radionuclides such as plutonium, americium, or curium. (nih.gov)
  • Prevention of cancer in Idaho, Washington, Tennessee,Kentucky, South Carolina and other states that have Nuclear facilities, has be the #1 priority for the safety of workers who are in contact with Plutonium 239, Americium 240 and alpha grade uranium. (cdc.gov)
  • The separation of curium and americium was so painstaking that those elements were initially called by the Berkeley group as pandemonium (from Greek for all demons or hell) and delirium (from Latin for madness). (wikipedia.org)
  • The Isolation of Microgram Amounts of Berkelium and Californium from Irradiated Americium. (pitt.edu)
  • Americium appears to be more malleable than uranium or neptunium and americium tarnishes slowly in dry air at room temperature. (webelements.com)
  • Americium was discovered by Glenn Seaborg, Ralph James. (webelements.com)
  • Americium metal is highly radioactive, is the fourth synthetic element discovered in the late 1944 from Glenn Seaborg. (novaelements.com)
  • Initial experiments yielded four americium isotopes: 241Am, 242Am, 239Am and 238Am. (wikipedia.org)
  • Americium has no naturally occurring or stable isotopes. (cdc.gov)
  • Two important isotopes of americium are americium 241 ( 241 Am) (read as americium two-forty-one) and 243 Am. Both isotopes have the same chemical behavior in the environment and the same chemical effects on your body. (cdc.gov)
  • The transfer of transuranium element americium-241 ( 241 Am) from food and water to organs and tissues of freshwater fish (Carassius auratus gibelio, crucian carp) has been investigated in laboratory experiments. (tib.eu)
  • Although americium was likely produced in previous nuclear experiments, it was first intentionally synthesized, isolated and identified in late autumn 1944, at the University of California, Berkeley, by Glenn T. Seaborg, Leon O. Morgan, Ralph A. James, and Albert Ghiorso. (wikipedia.org)
  • Americium was first produced in 1944 by the group of Glenn T. Seaborg from Berkeley, California, at the Metallurgical Laboratory of the University of Chicago, as part of the Manhattan Project. (wikipedia.org)
  • In chemical compounds, americium usually assumes the oxidation state +3, especially in solutions. (wikipedia.org)
  • Binary compounds with halogens (known as halides), oxygen (known as oxides), hydrogen (known as hydrides), and other compounds of americium where known. (webelements.com)
  • Americium is a synthetic radioactive chemical element with the symbol Am and atomic number 95. (wikipedia.org)
  • Americium is a man-made radioactive chemical. (cdc.gov)
  • it was thus by analogy named after the Americas: "The name americium (after the Americas) and the symbol Am are suggested for the element on the basis of its position as the sixth member of the actinide rare-earth series, analogous to europium, Eu, of the lanthanide series. (wikipedia.org)
  • 7s 2 and the term symbol of americium is 8 S 7/2 . (webelements.com)
  • Americium is a relatively soft radioactive metal with silvery appearance. (wikipedia.org)
  • Americium metal is a silvery white solid material at normal pressure and temperature. (novaelements.com)
  • however, higher oxidation states of americium can be prepared using sodium bismuthate and separated via solvent extraction using diamylamylphosphonate (DAAP) extraction. (confex.com)
  • Plants may take up small amounts of americium from the soil. (cdc.gov)
  • The general population may be exposed to very small amounts of americium in air, water, soil, and food. (cdc.gov)
  • It is unlikely that you would be exposed to amounts of americium large enough to cause harmful effects in these organs. (cdc.gov)
  • Americium-241 was used in tiny amounts in very old smoke detectors for ionizing air. (novaelements.com)
  • Americium atoms have 95 electrons and the shell structure is 2.8.18.32.25.8.2. (webelements.com)
  • Calculate the number of valence electrons in Americium using its electron configuration step by step. (chemicalaid.com)
  • Americium metal was discovered as a by-product while testing an atomic bomb (Manhattan Project). (comparenature.com)
  • Laboratory animals exposed to very high levels of americium had damage to the lungs, liver, and thyroid. (cdc.gov)
  • However, studies in animals have demonstrated that internal exposure to 241 Am can cause cancer in bone and liver, where americium is stored. (cdc.gov)
  • 241 Am was registered in internal organs and tissues that had no direct contact with americium (liver, bones, muscles) as early as two days after the feeding and after eight days, when the digestive tract was depurated. (tib.eu)
  • Inside your body, americium is concentrated in your bones, where it remains for a long time. (cdc.gov)
  • However, exposure as children could result in a longer period in which americium in the bones could affect nearby cells and increase the chance of causing cancer later in life. (cdc.gov)
  • Activity concentration in bones (19-31 Bq/kg) was several times higher than in muscles, indicating the affinity of americium to bone tissue. (tib.eu)
  • Children can be affected by americium in the same ways as adults. (cdc.gov)
  • However, there are no actual data showing that children are more sensitive than adults to americium. (cdc.gov)
  • Americium released to the air (from nuclear weapon tests) will be associated with particles and will settle to the soil and water in rain or snow. (cdc.gov)
  • Americium released into water will stick to particles in the water or the sediment at the bottom. (cdc.gov)
  • Americium strongly sticks to soil particles and does not travel very far into the ground. (cdc.gov)
  • Because of the long half-life of americium-241, the amount of radioactive material in an ionization chamber smoke detector at the end of its useful life will be about the same as when it was purchased. (oneradionetwork.com)
  • Very low levels of americium occur in air, water, soil, and food, as well as in smoke detectors. (cdc.gov)
  • 241 Americium is used in ionization smoke detectors. (cdc.gov)
  • They may also be exposed to very low levels of americium radiation from smoke detectors and fallout from nuclear weapons testing. (cdc.gov)
  • People producing or handling americium in smoke detectors or other devices may be exposed to higher levels of radiation. (cdc.gov)
  • Higher-than-normal levels of americium may be in soil near a nuclear waste site, nuclear reactor, or plant that manufactures ionization smoke detectors. (cdc.gov)
  • Americium is a component of the smoke detector above. (webelements.com)
  • Americium is a key component of some smoke detectors. (webelements.com)
  • Americium metal is used in smoke detection alarms. (comparenature.com)
  • Think of all the radioactive americium freed from thousands of smoke detectors by fire (and tens of thousands of detectors in the huge Thomas Fire in California). (oneradionetwork.com)
  • Why is americium-241 in our smoke detectors? (oneradionetwork.com)
  • Americium is a radioactive rare earth metal which must be handled with care to avoid contact, since it is a heavy α and γ emitter. (webelements.com)
  • http://www.who.int/water_sanitation_health/publications/2011/dwq_guidelines/en/ [accessed 17 Aug 2012]. (nih.gov)
  • Now we have americium-241 in our drinking water and in our gardens (after it precipitates out of our smoky air. (oneradionetwork.com)
  • or NSC 612825 " Am atrisan, a commercial preparation of urea, dissolved in distilled water" had become Am (americium). (nih.gov)
  • People working at sites where transuranic waste from nuclear weapons efforts or spent nuclear fuel from nuclear power plants are stored may be exposed to higher levels of americium. (cdc.gov)
  • While the amount of Americium-241 contained in each detector is considered 'small' - in the range of 1 to 5 microcuries - it is more than enough to cause cancer if inhaled or digested. (oneradionetwork.com)
  • The solid state structure of americium is: hcp (hexagonal close-packed). (webelements.com)
  • The ground state electronic configuration of neutral americium is [ Rn ]. (webelements.com)
  • authors) [French] I - Une methode de mesures par coincidences {alpha} {gamma} est utilisee pour des mesures d'activite de {sup 241}Am en presence d'activite {alpha} (due au Pu) importante. (osti.gov)
  • II - Le meme appareillage a ete utilise pour des mesures {alpha} sur des sources emettrices {alpha} en presence d'activites {beta} et {gamma} tres importantes. (osti.gov)
  • En particulier des mesures d'activite {alpha} sur des echantillons de poudre sont exposees. (osti.gov)
  • Because of the low penetration of alpha radiation, americium-241 only poses a health risk when ingested or inhaled," according to Wikipedia. (oneradionetwork.com)
  • This fact sheet answers the most frequently asked health questions about americium. (cdc.gov)
  • Americium has been found in at least 8 of the 1,636 National Priorities List (NPL) sites identified by the Environmental Protection Agency (EPA). (cdc.gov)
  • Americium has not been found to cause cancer in humans. (cdc.gov)
  • How can americium affect my health? (cdc.gov)
  • The radiation from exposure to americium is the primary cause of adverse health effects from americium. (cdc.gov)
  • Exposure to radioactive americium may result in increased cancer risk. (cdc.gov)
  • How can families reduce the risk of exposure to americium? (cdc.gov)
  • In shellfish, americium is attached to the shell and not to the parts you normally eat. (cdc.gov)