What is Nuclear physics: Definition and 293 Discussions

Nuclear physics is the field of physics that studies atomic nuclei and their constituents and interactions, in addition to the study of other forms of nuclear matter.
Nuclear physics should not be confused with atomic physics, which studies the atom as a whole, including its electrons.
Discoveries in nuclear physics have led to applications in many fields. This includes nuclear power, nuclear weapons, nuclear medicine and magnetic resonance imaging, industrial and agricultural isotopes, ion implantation in materials engineering, and radiocarbon dating in geology and archaeology. Such applications are studied in the field of nuclear engineering.
Particle physics evolved out of nuclear physics and the two fields are typically taught in close association. Nuclear astrophysics, the application of nuclear physics to astrophysics, is crucial in explaining the inner workings of stars and the origin of the chemical elements.

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  1. A

    Nuclear physics - number of nucleons on surface?

    Homework Statement For a nucleus of A=220, estimate very roughly how many nucleaons would be at the surface. Homework Equations R0=1.5 x 10-15 r=A1/3 x R0 The Attempt at a Solution Using the formulas, I calculated R to be 7.2441729 x 10-15 The book says that the number of...
  2. G

    Nuclear physics problem (Chernobyl)

    Hi I have a problem that i do not know how to solve. Activities from the fission products I(131) and I(133) were measured in the air of a city 28/4-1986 at 17:00. The result was 0,12 Bq/m3 and 0,39Bq/m3 for I(131) and I(133), respectively. These isotopes came from the chernobyl nuclear...
  3. S

    Free books about Nuclear Physics

    Free books about "Nuclear Physics" Dear All Is there any website offers free books about "Nuclear Physics". "nuclear bombs", "nuclear plans and reactors"? Best regards
  4. E

    Q-value calculation - nuclear physics

    http://www.nndc.bnl.gov/masses/mass.mas03, and the missing data: u=931.50MeV p=1.00728u=938.28MeV d=2.01355u=1875.63MeV e=0.511MeV A(a,b)B=a+A->b+B Q=[(m(a)+m(A))-(m(b)+m(B)]MeV (1) This can't be more simple, but in every example that I saw in my lectures different values occur. For example...
  5. M

    What is a good book for learning about nuclear physics and radioactivity?

    Hey, I am looking for a book related to physics, I need it to be relatively easy to read and comprehend as I do not have a vast amount of knowledge overall. I am very much interested in nuclear physics, and radioactivity, but I would like to see if there are any easy to read book on that topic...
  6. N

    Calculating Separation between Nucleus Fragments: Nuclear Physics Problem"

    Homework Statement A nucleus[atomic no Z, mass no. A] splits into two fragments(z1,A1) and (Z2,A2).Find the separation between them at the time of splitting. Homework Equations The Attempt at a Solution I am giving the way I would approach.Please check and confirm: rest energy of...
  7. P

    Nuclear Physics Scattering: Elastic, Inelastic etc

    I am preparing for a Nuclear Physics test. One of the homework problems asks the following: Choose the proper neutron interaction type for each of the following scenarios and explain why. Interaction types: elastic, inelastic, (n, \gamma),(n,2n),(n, \alpha). A. 10-MeV neutrons...
  8. M

    Hello Question about Nuclear physics theory

    Hello it's seems a nice forum, I'm asking for a friend of mine, he have a Nuclear physics theory he would like to publish , so people could give their opinions, is there any good website were there are qualified people who could give me expert opinion for the theory? I've search a lot and I...
  9. P

    Schools Top US universities for nuclear physics

    Which are the top universities in the US for graduate studies in nuclear physics?
  10. G

    Bunch of Nuclear Physics Question, Please help me.

    1. What fundamental force will decide the size of an atom? still I've more to ask. . . waiting for reply
  11. U

    Rutherford scattering and nuclear physics

    hi, i am a new student here in this forums from uae and i am studing in uaeu my majore is general physics >>> in this corse i have problem in nuclier physics in rutherford scattering >>> can you help ma pleaseeeee the problem are : firest one is : Show that the distance of...
  12. S

    What is the Meaning of Gamma_{1} in Nuclear Physics?

    I found following statement in a textbook about nuclear physics: Does this mean that when the decay width alpha is quite large, a given nucleon is likely to decay by emitting an alpha particle? Or does the decay width mainly depend on the properties of the alpha particle?
  13. malawi_glenn

    What universities in Europe offer PhD programs in nuclear physics?

    Hi! Iam living in sweden and are searching for universties in europe for PhD school in nuclear physics (theoretical, experimental, -energy). So if you know any good universties that fit my description, please submit =)
  14. N

    Nuclear physics by Weiss_ _ _ ?

    I was told of a good book on above subject by a Dr. Weisscort, Weisscoot, Weissport ? I can't recollect the right name. Does anyone know of a book?
  15. D

    How Does Half-Life Affect Remaining Mass of a Radioactive Isotope?

    hello..im new to nuclear physics and i have problems attempting helf life questions.. hope you can help me with this question.. The half-life of a given radioactive isotope is 10 years. What is the mass of this isotope remaining undecayed after 20 years if the original mass was 12g? thank you..
  16. J

    Level of enforced secrecy in nuclear physics

    This poll is purely to satisfy my curiousity "enforced secrecy" in this context means a legal obligation not to share information, such as having to sign an agreement. Which best describes your situation a) I never studied nuclear phyics b) I studied nuclear physics during a degree...
  17. malawi_glenn

    Is Caos Theory Helpful in Studying Nuclear Physics?

    Hi there! I was wondering if Caos-theory is good to know/master in nuclear physics. Do you guys feel that your studies of caos have been useful? (if you have studied it) And for you who hasn´t study caos, do you feel that it would be good if you had studied caos theory? Stay cool
  18. M

    Solve Nuclear Physics Homework: How Many Grams of TNT Needed?

    Homework Statement Nuclear energy changes are significantly greater than chemical changes. The detonation of 1.00 g of the explosive trinitrotoluene (TNT) releases 2.760 kJ. How many grams of TNT would be needed to match the energy released by one gram of U-235? Homework Equations...
  19. P

    Calculating Half-life of 6He through Beta Minus Decay

    Homework Statement A student takes a sample of 32,000 6He atoms and measures 31000 daughter nuclei 4 seconds later. What is the half-life of 6He? What is the daughter nucleus if the 6He underwent beta minus decay? Homework Equations N = (No)(0.5)^{t/halflife} The Attempt at...
  20. G

    How Do You Calculate the Decay Constant from Radioactivity Measurements?

    Homework Statement A sample of radioactive isotope is found to have an activity of 120 Bq imediately after it is pulled from the reactor that formed the iso- tope. Its activity 1 h 55 min later is measured to be 85.8 Bq. Find the decay constant of the sample. An- swer in units of h^-1...
  21. M

    Hard nuclear physics cross section problem

    In a scattering experiment, an aluminium foil of thickness L = 10E-6 m is placed in a beam of intensity of 6E12 particles per second. The differential scattering crosss section is known to be of the form. \frac{d\sigma}{d\Omega} = A + Bcos^2 (\theta) where \theta is the...
  22. A

    Tracing the Roots of Nuclear Physics: Experiments by Early Pioneers

    Where can all the classic papers by the experimentalists that layed the foundation for nuclear physics be found?:confused: Rutherford, joliot-curie, fermi, lawrence, Hahn ect. Im very interested in reading exactly how they setup there experiments, the conclusions they drew and so on.
  23. L

    Courses A nuclear engineering course as a substitute for nuclear physics?

    a nuclear engineering course as a substitute for nuclear physics?? I am a dual major in electrical engineering and physics and I missed my shot at taking nuclear physics, and likely will never get the chance to take it again. It isn't required for my degree but I still want to know something...
  24. G

    Nuclear physics job description

    I'm just curious about people who work in the nuclear/particle/theoretical physics area what the job is like. I'm currently finnishing year 12 and probably will go into a Physics Course (damn easy to get into since no one does physics) and then probably do my masters and a PhD.
  25. Astronuc

    Nuclear Physics European Collaboration Committee

    Some may find this of use. I was going to put it in Marlon's "Elementary Particle Presented" thread, but this is more general, including heavy ion and radiation physics. http://www.nupecc.org/ http://www.nupecc.org/pub/ This report in particular is interesting - NUCLEAR PHYSICS IN...
  26. P

    SOLUTIONNuclear Physics: Accident in Lab, Wait Time to Enter Room

    QUESTION in an accident in a lab a radioactive isotope with a half life of 3 days is spilled - as a result the radiation is 8 times the max. permissible amount, how long must workers wait before they can enter the room. ANSWER 9 COMMENTS I am not sure where to even start with this...
  27. H

    Calculating Lead Shielding Thickness for Radioactive Sample Transport

    Hello, i have to do a problem for a written problem set: 1. Shielding. The transport of radioactive samples must follow strict guidelines to ensure that the exposure is very low. A 100 mCi sample of 212Pb is placed at the centre of a cubical lead lined box, each side of which has a length of...
  28. M

    Top nuclear physics undergrad programmes?

    Hello: I am interested in attending the best nuclear physics programmes available, regradless of where they are in the English spoken world. I have finished two years at Stanford University which a 3.96 GPA. My SATs were 760 reading, 800 math. I got 5's on both the two math and physics...
  29. W

    Getting Started with Nuclear Physics: Advice and Resources

    hi i want to master physics and science(mot all but the more i know, the better it is). on the other hand i want to find a job that fit with that academic subject? can you give me some advice for that idea?/ can you show me how to start to study nuclear physics, such as where i should begin...
  30. A

    Seeking Textbook Recommendations for My Advanced Nuclear Physics Class

    My Nuclear Physics class this semester is using the textbook my professor wrote. It is out of print, and with good reason. Can anyone recommend a suitable undergraduate Nuclear Physics textbook which covers most of the basics at a reasonably advanced level? Looking at the usenet booklist Krane...
  31. F

    Mass of 18F9: Solve with Q-value and Kinetic Energy Equations

    The reaction 18(number of neturons + protons) O(oxygen) 8 (number of protons) (p,n) 18 F 9 requires an input of energy equal to 2.453 MeV. What is the mass of 18F9? I tried to use Q-value equation, but it didn't work out at all then i thought, since the enrgy is conserved, the kinetic...
  32. B

    How many stable isotopes have 28 neutrons?

    Hi. Can anybody help me with this exercise in Introductory Nuclear Physics: One of the magic numbers for nuclei is 28. How many stable isotopes exist with N = 28. (N being the number of neutrons) I have no idea on how to solve this. Thanks.
  33. N

    What Are Some Recommended Nuclear Physics Textbooks for Online Access?

    Any recommendations?, I'm also hoping for a book that i can find online...
  34. E

    Understanding the Delicate Balance Between Forces in Nuclear Physics

    The question is in the attachment.. My thoughts were that between 2 protons, there's obviously going to be higher electrostatic repulsion, so a higher attractive strong force is needed (to keep the protons together), than with 2 nucleons. But the highest strong force is when separation is...
  35. W

    How Do You Calculate the Effective Mass of an X-ray Photon?

    OK ... i figured out the momentum, however i need help with find the mass. anyone know how? What is the momentum of a 0.33 nm X-ray photon? 2.009E-24 kg · m/s What is its effective mass? _________ kg thanks :biggrin: :biggrin:
  36. V

    Nuclear physics studies applications

    Can anybody enlighten me with some good weblinks on Applications of Nuclear Physics studies.
  37. D

    Nuclear physics Pions and Parity?

    Nuclear physics Pions and Parity? Ignore, nevermind Why can: \pi^- + d \rightarrow n + n + \pi^0 not happen for pions at rest? work so far: \begin{array} {|c|c|c|c|c|c|}\hline&\pi^-&d&\rightarrow &n \ + \ n&\pi^0\\\hline{Spin}&0&1&\ \rightarrow &1/2 \...
  38. B

    Difficult nuclear physics exercise

    nuclear physics exercise The activity from a mixed radioactive sample is measured at different times and given in a table like this: Time (h)...Decays/sec ----------------------- 0.0 ...... 7500 0.5 ...... 4190 1.5 ...... 3100 : ...... : : ...... ...
  39. L

    Discovering the Fundamentals of Nuclear Physics to Books

    can anybody suggest me a book for knowing fundamental concepts of nuclear physics
  40. M

    Is There a Connection Between Nuclear Physics and Chemistry?

    Actually there is an example of a form of the instability of a proton in chemistry, wherein a proton changes into a neutron by capturing an electron...granted it isn't really instability, but it is change...
  41. X

    Exploring the Frontiers of High-Energy Nuclear Physics

    Anyone who comes through here involved in high-energy nuclear physics? Just wondering if there are other people out there who work in the field.
  42. grady

    Undergrad nuclear physics; spin parity rules

    Chapter 3 #17 (Krane) The spin-parity of 9Be and 9B are both 3/2-. Assuming in both cases that the spin and parity are characteristic only of the odd nucleon, show how it is possible to obtain the observed spin-parity of 10B(3+). What other spin-parity combinations could also appear? (These...
  43. E

    Nuclear physics undergrad. lab experiments

    Can anybody recommend any *interesting* lab experiments suitable for an undergraduate nuclear physics course? Thank you.
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