RPSC Syllabus Senior Demonstrator (M&H Department)


Rajasthan Public Service commission, Ajmer
Syllabus for Screening Test for the post of  
Senior Demonstrator – RADIOLOGICAL PHYSICS
 (MEDICAL & HEALTH DEPARTMENT) 
BASIC RADIATION PHYSICS


1. Basic Nuclear Properties
Nuclear size, shape, mass – Charge distribution – Spin and parity – Binding energy – Semi empirical mass
formula – Nuclear stability – Mass parabola
Nature of nuclear forces – Ground state of deuteron – Magnetic dipole moment of deuteron – Proton-neutron
scattering at low energies – Scattering length, phase shift – Properties of nuclear forces – Spin dependence –
Charge symmetry – Charge independence – Repulsion at short distances – Exchange forces – Meson theory
2. Radioactive Decays
Alpha emission – Geiger – Nuttal law – Gamow theory – Neutrino hypothesis – Fermi theory of beta-decay –
Selection rules – Nonconservation of parity – Gamma emission – Selection rules – Transition probability –
Internal conversion – Nuclear isomerism
3. Nuclear Reactions
Q-values and kinematics of nuclear cross sections – Energy and angular dependence – Reciprocity theorem –
Breit-Wigner formula – Compound nucleus – Resonance theory – Optical model-Shell model – Liquid drop
model – Collective model
4. Interactions of radiation with matter
Mechanism of Interaction of Ionizing Radiation: Ionization and absorption of energy – Photon Beam Description
- Photon Beam Attenuation – Attenuation Coefficient and mass energy attenuation coefficients – Half value
layer-Narrow and broad beams-Mass, electronic and atomic attenuation coefficients-Energy transfer and energy
absorption-Interactions of Photons with Matter – Coherent Scattering – Photoelectric absorption – Compton
Effect-Klein –Nishina coefficients – Pair Production  – Total attenuation coefficient-– Relative Importance of
Various Types of Interaction
Interaction of heavy charged particles with matter. Energy loss per ion pair, primary and secondary ionization-
dependence of collision energy loss on physical and chemical state of the absorber- Cerenkov radiation- electron
absorption- Bremsstrahlung-range energy relation- Passage of heavy charged particles through matter-loss of
collision-Brag curve-specific ionization-stopping power and restricted stopping power-Beth Bloch formula.
Interaction of neutron with matter- scattering- capture-neutron induced nuclear reaction.Neutron sources,
properties, energy classification, elastic and inelastic scattering, nuclear reaction, neutron activation, radio isotope
production.
5. Radiation quantities and Units
Quantities to describe a radiation beam- particle flux and fluence- Photon flux and fluence- cross section- linear
and mass absorption coefficient-stopping power and LET. Activity – Curie – Becquerel. Exposure and its
measurements – Roentgen, Radiation absorbed Dose – Gray – Kerma- kerma rate constant- Electronic
equilibrium- relationship between kerma, exposure and absorbed dose–Relative biological effectiveness-
radiation weighting factors.
Equivalent dose-effective dose- tissue weighting factors-ambient and directional equivalent dose and their
relevance in dosimetry, tissue equivalence, dose commitment and collective dose.

tag :rpsc syllabus radiology Senior Demonstrator Post (Medical and Health Department)

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