Physics and Radiobiology of Nuclear Medicine

radionuclides are usually neutron deficient and therefore decay by b+- emission or electron capture. Reactor-Produced Radionucli ...

Fission or (n,f) Reaction When a target of heavy elements is inserted in the reactor core, heavy nuclei absorb thermal neutrons ...

48 5. Production of Radionuclides Table5.1. Characteristics of commonly used radionuclides. g-ray Common Physical Mode of g-ray ...

Target and Its Processing Various types of targets have been designed and used for both reactor and cyclotron irradiation. In th ...

The activity of a radionuclide produced by irradiation of a target mater- ial with charged particles in a cyclotron or with neut ...

Ge(Li) detectors coupled to a multichannel pulse height analyzer. They may also be assayed in an ionization chamber if the amoun ...

lives of the daughter. After equilibrium, the daughter appears to decay with the same half-life as the parent. Because of the di ...

99 Mo–99mTc Generator The^99 Mo–99mTc generator is constructed with alumina (Al 2 O 3 ) loaded in a plastic or glass column. The ...

Regulatory Commission (NRC) regulations,the permissible limit for^99 Mo breakthrough is 0.15mCi (5.5 kBq) per millicurie (37 MBq ...

Suggested Readings Colombetti LG. Radionuclide generators. In: Rayudu GVS, ed.Radiotracers for Medical Applications.Boca Raton, ...

6 Interaction of Radiation with Matter 56 All particulate and electromagnetic radiations can interact with the atoms of an absor ...

of Wis about 35 eV in air and less in oxygen and xenon gases but falls in the range of 25–45 eV for most gases. The process of i ...

Problem 6.1 If a particulate radiation produces 45,000 ion pairs per centimeter in air, calculate the LET of the radiation. Answ ...

mass of the particle. The light mass electrons are considerably deflected during collisions and hence exhibit more straggling. I ...

Bremsstrahlung When energetic charged particles, particularly electrons, pass through matter and come close to the nucleus of th ...

of that caused by a non-penetrating electron of the same energy. There is no quantity equivalent to a range of particles for g-r ...

a characteristic x-ray or Auger electron, analogous to the situations in inter- nal conversion or electron capture decay. Compto ...

a 1330-keV photon these values are 215 keV and 1115 keV, respectively. It can be seen that as the photon energy increases, the s ...

mediate Zabsorbers at medium energies (~1 MeV). At higher energies (>10 MeV), pair production predominates in all Zabsorbers. ...

It=I 0 e−mx (6.4) where mis the linear attenuation coefficientof the absorber for the photons of interest and has the unit of cm ...