A heavy isotope diet is one in that contains nutrients in which some atoms are replaced with their heavier non-radioactive isotopes, such as deuterium 2H or heavy carbon 13C. (wikipedia.org)
Besides the online production of the desired radioactive isotope, extraction and post-accelerating (so-called ISOL technique, carried out for instance at CERN ISOLDE or CYCLONE at the CRC/UCL), also offline technology by use of an ECR source is applied. (psi.ch)
All of the heavier elements are radioactive and quickly decay. (nobelprize.org)
The part that scientists didn't understand until about 100 years ago is that certain elements have isotopes that are radioactive. (howstuffworks.com)
All isotopes of an element, even those that are radioactive, react chemically in the same way. (cdc.gov)
Doubly magic1
The possibility of finding "magic" or "doubly magic" isotopes of superheavy elements (with both proton and neutron outer shells completely filled) led to predictions of a region of enhanced stability in the 1960s. (lbl.gov)
Kinetic isotop2
In theory, replacing hydrogen with deuterium "reinforces" the bond due to the kinetic isotope effect, and such reinforced biomolecules taken up by the body will be more resistant to ROS. (wikipedia.org)
We call this the kinetic isotope effect," explains Prof. Dr. Andreas Gansäuer of the Kekulé Institute for Organic Chemistry and Biochemistry at the University of Bonn. (uni-bonn.de)
Neutrons4
The challenge is to create such isotopes by bombarding target nuclei rich in protons and neutrons with a beam of projectiles having the right number of protons, and also rich in neutrons, to yield a compound nucleus with the desired properties. (lbl.gov)
Atoms of both isotopes of copper have 29 protons, but a copper-63 atom has 34 neutrons while a copper-65 atom has 36 neutrons. (howstuffworks.com)
Specifically, as Feehan had done, Stoddard looked at the ratios of two carbon isotopes, or versions of an element containing different numbers of neutrons. (livescience.com)
Isotopes are forms of the same element, but differ in the number of neutrons within the nucleus. (cdc.gov)
Hydrogen4
Researchers at the University of Bonn have presented a method that allows the heavier hydrogen "brother" deuterium to be introduced specifically into many different molecules. (uni-bonn.de)
The possibility of testing quantum electrodynamics (QED) in very strong fields by laser spectroscopy on heavy highly charged ions has been opened by the first observation of the hyperfine splitting in hydrogen-like bismuth in 1994 [Klaft et al. (fnal.gov)
However, it was suggested that a so-called specific difference between the hyperfine splittings in hydrogen-like and lithium-like ions of the same isotope can be used to cancel nuclear structure effects and provide an accurate test of QED [Shabaev et al. (fnal.gov)
Stable4
Biomolecules that incorporate heavier isotopes give rise to more stable molecular structures, which is hypothesized to increase resistance to damage associated with ageing or diseases. (wikipedia.org)
The reactions induced by heavy ions produce compound nuclei of very high angular momentum [3]. (lu.se)
Carbon2
A beach outcrop at Davis Head on Lopez Island in Washington State, where researchers at Yale discovered veins of aragonite containing oddly light carbon isotopes suggestive of life's imprint. (livescience.com)
Ellison says, "There's only a very low probability that the two isotopes will interact to form a compound nucleus. (lbl.gov)
The result of this heavy-ion fusion evaporation reaction is the compound nucleus, 112Xe. (lu.se)
Figure 1: Excitation energy and angular momentum of levels in the compound nucleus produced in a heavy-ion reaction. (lu.se)
Chemistry1
The group that found the new isotopes is led by Heino Nitsche, head of the Heavy Element Nuclear and Radiochemistry Group in Berkeley Lab's Nuclear Science Division (NSD) and professor of chemistry at the University of California at Berkeley. (lbl.gov)
Atom1
If they hit an atom just right, they will stick to the atom, making it heavier. (encyclopedia.com)
Element5
Scientists want to know if there is a limit to how heavy a chemical element can be. (encyclopedia.com)
The heaviest element existing in nature is uranium, which has an atomic number of 92. (nobelprize.org)
The discovery of six new isotopes, reaching in an unbroken chain of decays from element 114 down to rutherfordium, is a major step toward better understanding how to explore the region of enhanced stability thought to lie in the vicinity of element 114-and possibly beyond. (lbl.gov)
Starting with the creation of a new isotope of the yet-to-be-named element 114, the researchers observed successive emissions of alpha particles that yielded new isotopes of copernicium (element 112), darmstadtium (element 110), hassium (element 108), seaborgium (element 106), and rutherfordium (element 104). (lbl.gov)
Shorter half-life isotopes of the heavier element are certainly more toxic in that respect. (physicsforums.com)
Nuclear1
Information gained from the new isotopes will contribute to a better understanding of the theory of nuclear shell structure, which underlies predictions of an "Island of Stability," a group of long-lasting isotopes thought to exist amidst a sea of much shorter-lived, intrinsically unstable isotopes of the superheavy elements. (lbl.gov)
Demand1
However, the demand for medical applied isotopes has already changed and will change dramatically in the coming years. (psi.ch)
The third is the Institute for Heavy Ion Research in Darmstadt, Germany . (encyclopedia.com)
Ken Gregorich, a senior staff scientist in NSD, is responsible for the group's day-to-day research operation at the 88-inch Cyclotron and the Berkeley Gas-filled Separator, the instrument used to isolate and identify the new isotopes. (lbl.gov)
The 20-member team included scientists from Berkeley Lab, UC Berkeley, Lawrence Livermore National Laboratory, Germany's GSI Helmholtz Center for Heavy Ion Research, Oregon State University, and Norway's Institute for Energy Technology. (lbl.gov)
Chart1
The six new isotopes placed on the chart of heavy nuclides. (lbl.gov)
Years1
Though it's now widely known as the source of lead poisoning , humans have been using the heavy metal for thousands of years. (mentalfloss.com)
Water2
The examples are deuterated polyunsaturated fatty acids, essential aminoacids, DNA bases such as cytosine, or heavy water and glucose. (wikipedia.org)
The green cubes of heavy water sink. (uni-bonn.de)
Atoms1
A heavy isotope diet is one in that contains nutrients in which some atoms are replaced with their heavier non-radioactive isotopes, such as deuterium 2H or heavy carbon 13C. (wikipedia.org)
Rare1
Now, with the discovery of 45 new, rare isotopes by a team of scientists lead by Toshiyuki Kubo at RIKEN's Nishina Center in Wako, hopes are high to establish an understanding of the nuclear process that produces roughly half the elements heavier than iron. (azgad.com)
Found1
It looks like someone else has found a marketing use for heavy water. (halfbakery.com)
Effect1
Added bonus effect: heavy water boils at 101.42° C, so you could start at a higher temperature. (halfbakery.com)
Research1
Neutron-rich isotope research is important for understanding how stars produce elements of the periodic table. (azgad.com)
Iron2
However, scientists believe that roughly half of the elements heavier than iron are produced by the so-called 'r-process', where r stands for rapid. (azgad.com)
The supernova is the furnace where the heavy elements (heavier than iron) are formed by neutron capture. (windows2universe.org)
Discovery1
The discovery of these particles, integral to the formation of isotopes, is discussed below. (encyclopedia.com)
Elements1
Despite this cosmological reality, however, scientists are yet to fully understand the stellar process that produces many of the heavier elements in the periodic table. (azgad.com)