neutron poison वाक्य
उदाहरण वाक्य
मोबाइल
- Especially the fast removal of Xe-135 is important, as this is a very strong neutron poison and makes reactor control more difficult if left in the reactor.
- Impurities could act as neutron poisons and prevent a nuclear reactor from working, but the uranium oxide that Fermi wanted for his experimental reactor contained unacceptably large amounts of impurities.
- Furthermore, the neutron poison content of the facility load is limited such that the reactor cannot be tripped by a significant reactivity change upon insertion and removal of the samples.
- PTP experiments containing neutron poison loads in excess of that described are discouraged because of their adverse effects on isotope production rates, fuel cycle length, and fuel element power distribution.
- These fission products are important to the operation of the reactor because some fission products contribute delayed neutrons that are useful for reactor control while others are neutron poisons that tend to inhibit the nuclear reaction.
- Like other lanthanides, many isotopes, especially isotopes with odd mass numbers and neutron-poor isotopes like 152 Eu, have high cross sections for neutron capture, often high enough to be neutron poisons.
- As the extra xenon-135 is transmuted to xenon-136, which is much less a neutron poison, within a few hours the reactor experiences a " xenon burnoff ( power ) transient ".
- The HEU feedstock can contain unwanted uranium isotopes : 236 U is a neutron poison; therefore the actual 235 U concentration in the LEU product must be raised accordingly to compensate for the presence of 236 U.
- Typically, control rods contain neutron poisons ( substances, for example boron or hafnium, that easily capture neutrons without producing any additional ones ) as a means of altering " k-effective ".
- Typical experiments contain a neutron poison load equivalent to that associated with 200 g of aluminum and 35 g of stainless steel distributed uniformly over a 20-in . ( 50.8-cm ) length.
- But whether the reactor is shutdown by control rods or neutron poison or both, there is still a lot of cooling to be done over an extended period which requires a lot of pumping which is an energy hungry pastime.
- The goal is to return actinides to the molten fuel mixture for eventual fission, while removing fission products that are neutron poisons, or that can be more securely stored outside the reactor core while awaiting eventual transfer to permanent storage.
- Additionally, there were two shutdown / control rods composed of natural uranium and boron that was enriched in the boron-10 isotope . 10 B is a very effective neutron poison that could be inserted to control and shut down the reaction.
- :Where batteries may have a special separate roll in a BWR plant is to directly power special emergency backup pumps whose only job is to inject " neutron poison " ( boron, boric acid etc ) directly into the reactor if other measures to shut it down fail.
- The table in the next section gives yields for notable radioactive ( with halflife greater than one year, plus iodine-131 ) fission products, and ( the few most absorptive ) neutron poison fission products, from thermal neutron fission of U-235 ( typical of nuclear power reactors ), computed from.
- Fission products and actinides produced by neutron absorption of nuclear fuel itself are normally referred to by those specific names, and " activation product " reserved for products of neutron capture by other materials, such as structural components of the nuclear reactor or nuclear bomb, the reactor coolant, control rods or other neutron poisons, or materials in the environment.
- Deep blue is the bulk ions, light blue is the fission products ( group I is Rb / Cs ) ( group II is Sr / Ba ) ( group III is Y and the lanthanides ), orange is the corrosion products ( from stainless steel pipework ), green are the major actinides, violet are the minor actinides and magenta is the neutron poison)
- However, without addition of a neutron poison or active neutron-absorber, " decreases " in fission rate are limited in speed, because even if the reactor is taken deeply subcritical to stop prompt fission neutron production, delayed neutrons are produced after ordinary beta decay of fission products already in place, and this decay-production of neutrons cannot be changed.
- A "'neutron poison "'( also called a "'neutron absorber "'or a "'nuclear poison "') is a substance with a large neutron-absorbing materials, also called poisons, are intentionally inserted into some types of reactors in order to lower the high reactivity of their initial fresh fuel load.
- This allows the reactor to be constructed with an excess of fissionable material, which is nevertheless made relatively safe early in the reactor's fuel burn-cycle by the presence of the neutron-absorbing material which is later replaced by normally produced long-lived neutron poisons ( far longer-lived than xenon-135 ) which gradually accumulate over the fuel load's operating life.
neutron poison sentences in Hindi. What are the example sentences for neutron poison? neutron poison English meaning, translation, pronunciation, synonyms and example sentences are provided by Hindlish.com.