APAKAH MAKSUD AMERICIUM dalam CORSICA?
Americium
Americium adalah unsur kimia transuranik radioaktif yang mempunyai simbol Am dan nombor atom 95. Ahli siri actinide ini terletak dalam jadual berkala di bawah elemen europium lanthanide, dan oleh itu analogi dinamai benua lain, Amerika. Americium pertama kali dihasilkan pada tahun 1944 oleh kumpulan Glenn T. Seaborg di University of California, Berkeley. Walaupun ia adalah unsur ketiga dalam siri transuranik, ia telah dijumpai keempat, selepas kurium yang lebih berat. Penemuan itu dirahsiakan dan hanya dibebaskan kepada orang ramai pada bulan November 1945. Kebanyakan americium dihasilkan oleh bombarding uranium atau plutonium dengan neutron dalam reaktor nuklear - satu tan bahan api nuklear yang dibelanjakan mengandungi kira-kira 100 gram americium. Ia digunakan secara meluas dalam pengesan asap kebuk pengionan komersil, serta sumber neutron dan tolok industri. Beberapa aplikasi yang luar biasa, seperti bateri nuklear atau bahan api untuk kapal angkasa dengan penggerak nuklear, telah dicadangkan untuk isotop 242mAm, tetapi ia masih terhalang oleh kekurangan dan harga tinggi isomer nuklear ini. Americium adalah logam radioaktif yang agak lembut dengan penampilan keperakan.
Definisi americium dalam kamus Corsica
Takrif americium dalam kamus adalah elemen transuranik metalik putih buatan hasil daripada plutonium. Ia digunakan sebagai sumber alfa-zarah. Simbol: Am; atom tidak: 95; separuh hayat isotop paling stabil, 243Am: 7.4 × 10 ³ tahun; valensi: 2,3,4,5, atau 6; ketumpatan relatif: 13.67; lebur pt: 1176 ° C; mendidih pt: 2607 ° C.
CORSICA BUKU YANG BERKAIT DENGAN «AMERICIUM»
Ketahui penggunaan
americium dalam pilihan bibliografi berikut. Buku yang berkait dengan
americium dan ekstrak ringkas dari yang sama untuk menyediakan konteks penggunaannya dalam kesusasteraan Corsica.
1
Chemical Thermodynamics of
Americium
This is the second volume in a series of critical reviews of the chemical thermodynamic data of those elements of particular importance in the safety assessment modeling of high-level radioactive waste storage and disposal facilities.
R.J. Silva, G. Bidoglio, P.B. Robouch,
1995
2
The Toxicity of Plutonium,
Americium and Curium: A Report ...
The Toxicity of Plutonium, Americium and Curium
J. C. Nenot, J. W. Stather,
1979
3
Plutonium-239 and
americium-241 uptake by plants from soil
Kenneth Warren Brown, Environmental Monitoring and Support Laboratory (Las
Vegas, Nev.). Monitoring Systems Research and Development Division.
INTRODUCTION Many of the longest lived radioactive pollutants being released
into our ...
Kenneth Warren Brown, Environmental Monitoring and Support Laboratory (Las Vegas, Nev.). Monitoring Systems Research and Development Division,
1979
4
Update on the chemical thermodynamics of uranium, neptunium, ...
This volume is part of the series on "Chemical Thermodynamics", published under the aegis of the OECD Nuclear Energy Agency, and updates and expands the thermodynamic data on inorganic compounds and complexes of uranium, neptunium, ...
Robert Guillaumont, Federico J. Mompean,
2003
5
The Terrorist Effect - Weapons of Mass Disruption: The ...
americium and all of them are radioactive, but only three have half-lives long
enough to warrant concern: americium-241, americium-242m, and americium-
243. Ofthese, americium-241 is generally the most prevalent isotope in use. It
decays ...
6
Age-Related Factors in Radionuclide Metabolism and ...
THE GASTROINTESTINAL ABSORPTION OF PLUTONIUM AND AMERICIUM IN
NEONATAL MAMMALS J.D. HARRISON, J.A. BOMFORD, A.J. DAVID National
Radiological Protection Board, Chilton, Didcot, Oxon 0X11 ORQ. ABSTRACT ...
G.B. Gerber, H. Métivier, Hylton Smith,
1987
The ionization sensor smoke alarm contains a small amount of radioactive
material (typically, the alpha- emitting radioisotope americium-241) embedded in
a gold foil matrix within an ionization chamber. The matrix is made by rolling gold
and ...
8
The Absorption Spectrum of
Americium
The absorption spectra of aqueous solutions and solid compounds of americium have been investigated with a Baird 3-meter grating spectrograph.
B. J. Stover, J. G. Conway, Burris Bell Cunningham,
1950
9
Americium and Curium Chemistry and Technology: Papers from a ...
Papers from a Symposium Given at the 1984 International Chemical Congress of Pacific Basin Societies, Honolulu, December 16-21, 1984
Norman Edelstein, J.D. Navratil, Wallace W. Schulz,
2011
10
The Code of Federal Regulations of the United States of America
... (3.7E 11) Americium-237 95 1000 (3.7E 13) Americium-238 95 100 (3.7E 12)
Americium-239 95 100(3.7E 12) Americium-240 95 10(3.7E 11) Americium-241
95 0.01 (3.7E 8) Americium-242m 95 0.01 (3.7E 8) Americium-242 95 100 (3.7E
...
BARANGAN BERITA YANG TERMASUK TERMA «AMERICIUM»
Ketahui apa yang diterbitkan oleh akhbar nasional dan antarabangsa dan cara istilah
americium digunakan dalam konteks perkara berita berikut.
Benchtop Energy Dispersive X-Ray Fluorescence (EDXRF …
The instrument is provided with 50kV excitation and advanced high-resolution silicon drift detector enabling testing of many elements from sodium to americium. «AZoNano.com, Jul 15»
USA's Experimental Breeder Reactor-II now permanently entombed
All these were demonstrated, though the program was aborted in 1994 before the recycle of neptunium and americium was properly evaluated. «World Nuclear News, Jul 15»
Benchtop XRF Energy Fluorescence Spectrometer - Epsilon 3 XLE …
Epsilon 3 performs non-destructive quantitative analysis of elements from carbon to americium, in concentrations from 100% down to ppm levels. The Epsilon 3 ... «AZoNano.com, Jul 15»
Clean Daily for Litter Box Safety
... reaction between organic kitty litter (used to help absorb spills of uranium, plutonium, and americium) and the drum's contents was to blame. «Newsmax, Jun 15»
NASA report details plutonium needs for planetary missions
DOE has enough feed material (neptunium-237 and potentially americium-241) extracted from spent reactor fuel to provide four times the 140 ... «Physics Today, Jun 15»
Atomic Tourist Review: 2015 Toyota 4Runner 4X4 Trail Premium
... anything more radioactive than the radium test source on the CD V-700's case and the tiniest signal from the americium in a smoke detector. «Autoweek, Jun 15»
DOE speaks up on recertification
Nearly two dozen employees were contaminated with low levels of plutonium and americium. DOE officials have said WIPP could reopen in a ... «Albuquerque Journal, Jun 15»
EPA to hold 2 meetings on WIPP application
... its application six weeks after the radiation leak, which contaminated nearly two dozen workers with low levels of plutonium and americium. «Albuquerque Journal, Jun 15»
Going Back to Californium: A Changing View of Covalency
These results challenge previously held views that heavy elements such as californium, plutonium, and americium are only able to possess ... «Newswise, Jun 15»
Developing a 5 watt nuclear D cell battery that lasts decades for …
They might have americium RTGs in the future. It looks like the Russians ... Better get those americium cells working. Plutonium is going to be ... «Next Big Future, Jun 15»