Deuterium Definition and 72 Threads

Hydrogen as well as Deuterium are both flammable chemically, I read that both hydrogen as well as deuterium can ignite/combust upon compression even in ordinary ICE engines. Hydrogen has been investigated and used as fuel for internal combustion engines. Now in a inertial fusion approach the...

I was wondering how they measured or calculated these differences? I don't know what they refer to, but assume theyre scattering Hydrogen with Tritium or Deuterium to measure the difference of something. https://physics.nist.gov/cgi-bin/cuu/Results?search_for=shielding+difference

Summary:: Similar to the Kardashev Scale, create a means for forming a hierarchy of civilization based on deuterium access. I'm interested in the fusion process using deuterium, and I've noted that it remains (to this day) the greatest source of energy of any reactions. Because of this reason...

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Hello! Can someone point me to some table or functional form of the distribution of proton momentum inside deuterium? I found it for some high A (even for A=3), but can't find it for deuterium. Thank you!

I am studying the deuterium's nucleus. As we know, there are just two eigenstates for a spin 1/2 particle: either spin up or spin down. Thus, over the whole nucleus, you get 4 possible combinations: 1) Spin up-spin up 2) Spin up-spin down 3) Spin down-spin up 4) Spin down-spin down If you...

Hi, Does a T-D or a D-D fusion release more energy? Even if D-D needs higher temperatures, would it produce more energy in a fusion reactor?

Just wondering if there's any accurate method for direct measurement of the ionization energy of atomic Hydrogen and/or Deuterium ? There's lots of measurements on transitions between various hydrogen/deuterium energy levels but not (it seems) to the limit where n = infinity. Alternatively...

This question occurred to me as a result of the discussion in the thread https://www.physicsforums.com/threads/brown-dwarf-minimum-mass.919669. Apparently (1) H+H->D+e+ requires a temperature of >10,000,000 K while (2) H+D->3He requires only about 1,000,000 K. I confess that the references for...

Homework Statement Hi everybody! Here is the problem: Hyperfine splitting of Deuterium Balmer alpha line: Consider the ##3p_{3/2}## to ##2s_{1/2}## transition in deuterium. Find the number of transition lines and their frequency shifts with respect to the transition without hyperfine...

I think I read that Deuterium was 1 in 6194k hydrogen molecules in SEA water. Is there a difference in the water I pump in my well water at home? Just curious because it seems well mixed.

Hello everybody, I am performing some experiments with a neutron generator. Specifically D-D reactions. I am trying to replicate the measurements with MCNP6, but I do not know how can I simulate the neutron generator with MCNP6 since the neutrons have a angular distribution. For MCNPX there was...

I have heard that chilled water contains hard water. ie in the H2O contains another isotope of Hydrogen with a neutron. Is it true? If so, how it might affect our health if we drink?

[Sorry for the vague title, had a limit.] I have a question given in my Astronomy class: Below is a list of possible ways in which the universe could have been different. Some of these changes would make life as we know it impossible in our universe. Tick the boxes next to all the changes that...

Hey, I've been searching around online, and I can't find anything on the individual densities of D2 an T3, only the mean density of all hydrogen isotopes. Thanks, NWFusor

Hello Everybody, I'm looking into spectral analysis, and I couldn't find anything online about the spectra of different isotopes in discharge tubes (i.e. neon signs and the like ). Do different hydrogen isotopes have different spectra? If so, where could I find the data on the spectra? Thanks...

I have seen something to this effect stated dozens of times on the internet : "..because the deuterons and the protons are exchanging so quickly, you will end up with a statistical distribution: 25% H2O, 25% D2O, and 50% HDO." They are referring to a sample of water which is 50 atom %...

I am no Einstein but I would like to expand my knowledge and share it. When two deuterium atoms fuse together they become a helium nuclei. Now deuterium nuclei contains 1 proton and 1 neutron. When the deuterium nuclei fuses to form a helium nuclei. Helium nuclei contains 2 protons, and 2...

Is there a logical method to calculate the energy of a photon that would be needed for photodisintegratio? Could one simply use the difference in binding energy between the initial atom and products, are there more factors that need to be considered, can it only be determined experimentally? If...

In the same article which describes the accurate measurement of the Hydrogen 1s-2s transition at: 2 466 061 413 187 035 (10) Hz, CG Parthey also measures the frequency difference between Hydrogen and Deuterium which he gives as: 670 994 334 606(15) Hz. Assuming that the transition...

Homework Statement Write the equations for neutron and proton fusion to form deuterium and for deuterium photodissociation. Homework EquationsThe Attempt at a Solution There is plenty on proton-proton fusion to form deuterium, but not much on proton-neutron. Is it simply p + n -> D ? Is...

A few questions about the solar Lyman Alpha profile as presented here. 1) This is from a 1978 study - are there more recent (higher resolution) profiles ? 2) The scale at the bottom is confusing - how does it relate to a wavelength scale ? 3) Where in the profile is the actual Lyman alpha line...

Homework Statement I did a question in which positive charge was unstable near to ##-CD_3## group but was stable near to ##CH_3## group. Homework EquationsThe Attempt at a Solution Why is it like that? Is deuterium less active for hyperconjugation or it causes more steric hindrance? What's...

Comets have high Deuterium to Hydrogen ratios. They are enriched with extra neutrons. Comets periodically plunge close to the sun. And, the sun generates flares, which generate neutrons. Separately, I wonder if those neutrons come from fusion of solar corona gas, trapped on magnetic field...

I wanted to ask about the formation of deuterium in a star. I read that two protons will join together and that one of the protons will transmute to a neutron due to quark transformation via the weak interaction that will generate a W boson which decays to a positron and a neutrino. It is not...

Hi Folks, We use a UV bulb in my workplace which contains deuterium gas. The bulb is safely contained within a housing unit inside a machine so there are no direct hazards with UV radiation etc. I was however wondering, what would happen should such a bulb break? I have checked some MSDS...

Homework Statement ##_{1}^{2}\textrm{D}+_{1}^{3}\textrm{T}\rightarrow _{4}^{2}\textrm{He}+n## How much energy releases? Homework Equations Semi empirical mass formula that we use: ##W=-w_0A+w_1A^{2/3}+w_2\frac{Z(Z-1)}{A^{1/3}}+w_3\frac{(a-2Z)^2}{A}+w_4\frac{\delta...

Hi, quite new in chemistry.. I would like to know the beginning of the atoms in the universe. Therefore I must understand the process from Hydrogen to Helium. But to create Helium you need the isotope(#2) "Deuterium" from Hydrogen. But how did the Deuterium form? From two Protons...

Does anyone have a reference for the details of energy and by-products produced in an annihilation reaction of a matter deuterium atom [np]e- with anti-matter antideuterium atom [p^{\overline{}}n^{\overline{}}]e+ (note: is there a better Latex code for putting bar to show antimatter ?) As I...

Deuterium atom is an isotope of hydrogen [NP]e- that is a fermion. Would it be correct the model the deuteron [NP] nucleus as a boson, given that it has even number of particles ? That is, would it be correct to say that two deuteron [NP], as bosons, could occupy the same particle state...

Homework Statement a) Calculate the average binding energy per nucleon in the deuterium nucleus. b) The energy that binds an orbiting electron to the hydrogen nucleus is 13.4eV. Calculate the ratio of the binding energy per nucleon to the binding energy per electron in deuterium. Which...

Homework Statement Explain why deuterium cannot undergo beta decay or produce a stable nucleus, while tritium can. Homework Equations n/a The Attempt at a Solution There was nothing in the lesson that really explained this, and the only reason I can find online is because deuterium...

Deuterium Spectrum (nm) 410.07, 433.93, 486.01, 656.11 I came upon these figures on a commercial product site for Deuterium lamps. So, question: Are they correct? If so, then... 364.5068222*(3^2/(3^2 - 4)) = 656.11 364.5068222*(4^2/(4^2 - 4)) = 486.01 364.5068222*(5^2/(5^2 - 4)) = 433.93...

This may seem like a pretty broad question, but ill try and narrow it down the best I can. Lets say, Me, or a insect, drink some Deuteriuim oxide (under the leathal dose). How does it(d20, deuterium oxide)) interact without bodies, and what does it do to our bodies compared to regular...

I know you can order deuterium oxide (d2o), but can anyone tell me how I can get different permutations of heavy water? Semi heavy water? And so on...? Thanks

Hey all, First off, am I correct in saying (generally) that Deuterium slows down neutrons? That's why nuclear reactors use it because its easier to catch neutrons that are going slower. ?? Does this apply to all neutrons? Example, let's say I drank a nice tall glass of delicious Heavy...

I can't seem to find an answer to this. The question is: If I obtained Deuterium oxide from let's say a plant that manufactured it in some part of the world, and then obtained Deuterium from another plant manufactured from some other place in the world, is it possible for them to have...

Questions about "Heavy Water" and vibration...Thank you! Hey everyone, I am hoping someone can help explain something to me. Some biology students wanted to conduct research, and I don't quite understand a few things (as I think they are not correct, but I am not a biology student)...

The lifetime of a deuteron in the ground state of HD molecule has been calculated as 10^47 years. Obviously, at zero pressure and temperature it is slightly shorter, because hydrogen is solid at these conditions - but not much shorter, because in solid hydrogen at zero pressure the other...

I've been reading about the more or less discarded study of LEFR (Low-Energy Fusion Reactions) and I've read that the only repeatable LEFR process has been Muon-Catalyzed Fusion -- whereas the muon replaces an electron in a deuterium atom and overcomes Coloumb's barrier by attracting itself...

In general, nuclear fusion happens at a higher temperature for heavier elements. In my astrophysics class we derived an equation for probability of nuclear reactions, and without quoting it exactly, it boils down to have this probability proportional to exp(-mrZ1Z2), where mr is the reduced mass...

What causes the differences between the atomic spectra of deuterium and the atomic spectra of protium? Are there any important considerations other than the difference in the spin of the nucleus? Also how exactly do the selection rules play out differently?

When two deuterium nuclei are shot at each other they have some probability of fusing into a He nuclei. At the start we have a proton and a neutron in a potential well 1 MeV deep and another proton and neutron in another well 1 MeV deep. At the end we have two protons and two neutrons all in a...

Homework Statement Calculate the average binding energy per nucleon in the deuterium nucleus. Homework Equations Average binding energy= total binding energy/mass number The Attempt at a Solution Would i first have to find the mass of the nucleus and then the difference in mass? My...

someone told me that tritium deuterium has 47 times less mass than U-235 but, tritium's atomic mass is 3 and deuterium's is 2. myself being a caveman decided to add those together to get the atomic mass of tritium deuterium. any insight this would be appreciated

Homework Statement In a fusion reaction, the nuclei of two atoms join to form a single atom of a different element. In such a reaction, a fraction of the rest energy of the original atoms is converted to kinetic energy of the reaction products. A fusion reaction that occurs in the Sun converts...

Homework Statement {a} Calculate the average binding enrgy per nucleon in the deutrium nucleus {b} The energy that binds an orbiting electron to the hydrogen nucleus is 13.4 eV. Calculate the ratio of the binding energy per nucleon to the binding energy per electron in deutrium. Which...

You could gain a lot of weight and still have very little body fat! Of course, you'd need to do it for a very long period of time (for the D2O to replace all the H2O in your body). But would there be health risks? haha.

How close do two room temperature deuterium nuclei need to be to each other to have a one-in-a-quintillion chance of "tunneling" into each other so that the nuclear forces bind them together despite the repulsive effect of the positively-charged protons?

1. Is it possible to caculate the electric potential energy and the gravitational potential energy between two nucleon of deuterium (1 proton, 1 neutron), if we know the binding energy of deuterium is 2.23 (MeV), and the distance between them is 1 (fm)? Please help me! I'm really confused about...