NM 4303PHYSICS AND INSTRUMENTATION

CHRISTIAN 7TH EDITIONChapter 2Physics of Nuclear Medicine

E = wavelength x frequency

Describe: X & Gamma rays

What are the similarities?

What is the difference?

Sub atomic particlesproton neutron electron

Particle or energy? p p p

symbol P + N O +/- e̵�

mass 1.00759 amu 1.00898 amu 1/1836 or .000549 amu

charge +1 0 -1

function Physical characteristics

(N/P ratio)-Nuclear stability

Chemical properties

Neutron /proton ratio

alpha, beta -/+, gamma decay

Decay by:

Alpha decayBeta Decay + & - ( pair annihilation radiation)Tc99m metastable & transmutationElectron captureGamma emission

ISOTOPES

ISOTONES

ISOBARS

ISOMERS

Decay schemes

What is decay constant?

Decay constant = .693/ half life

1/t eff = 1/tb + 1/tp

Brems x-ray production

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Characteristic X-Ray Production

Auger electron

Define

Electron Capture (EC)

GAMMA EMISSION

Half Value Layer

Interation with Matter

Five names for Simple scatteringThompsonRaleighCoherentUnmodifiedSimple

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Simple Scatter

Photoelectric

Compton Scattering

Pair Production

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Pair Production

End of chapter 2

Take exam one over chapters 1 & 2 (Section I in the NM 4303 module)

(make sure you have turned in all of the module homework. (CIRCLE YOUR ANSWERS)