Nuclear physics Definition and 273 Threads

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...

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...

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...

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.

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...

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.

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...

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...

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...

[FONT="Arial Narrow"] 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...

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...

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...

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.

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

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...

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:

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

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 \...

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 : ...... : : ...... ...

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

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...

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.

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...