Radioactivity unstable isotopes will disintegrate

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
•Radioactivity: Unstable isotopes radioisotopes/radionuclides) will disintegrate until they reach nuclear stability •Potential across the cell membrane that opposes the diffusion of an ion •More Stable=Lowering Energy through the membrane •Infrared: Wiggle faster and short, gamma:high frequency electromagnetic photon •Greater this ratio, the greater the tendency for the ion to diffuse in •Number of nuclei will decrease as a function of time one direction =↑Nernst potential required to prevent diffusion •Rate~ λ:large rate and short half life •Voltage propagates as ions move back and forth the cell membrane •Alpha(heavy , so it travels in a straight line)<Betas<Neutrons<Gamma =action potential The range of an alpha in particular material increase with energy and decreases with mass density of target •Current changes in the Na+ channels that give rise to the disturbance of At the end, the particle is left with just thermal energy the membrane potential •Beta particles: high speed electrons, easily deflected by collisions with electrons in an atom (zig zag path) •Gamma: no charge, able to produce ionization as they pass through matter •Larger the RBE, larger the severity of the effect of that type of radiation of tissue, shorter the range
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern