C-arm and operation theater radiography

C-arm and operation theater radiography Where operative procedure requires imaging control, the radiographer plays an important part in the form of...

pelvis and hip all positions

pelvis and hip all positions Pelvic with both hip - Pelvis antero-posterior both hip is a common projection used for first evaluation of pelvis bone...

chest x ray

CHEST X RAY *         CHEST X RAY POSTERIOR ANTERIOR (PA VIEW) INTRODUCTION - In the chest x-ray, radio...

FILM CONSTRUCTION

FILM CONSTRUCTION This film basically has two parts -- the base and the emulsion Fig. 9.1). Most films have the emulsion coated on both side and therefore...

HYSTERESIS LOOP

HYSTERESIS LOOP The variation of flux density with magnetic field intensity is not linear. A graph plotted between B and Has shown in the Figure...

ELECTROMAGNETIC RADIATION

ELECTROMAGNETIC RADIATION Electromagnetic Radiation - An electric charge is surrounded by an electric field. If the charge moves, a magnetic field...

Moving Coil Galvanometer

Electrical Instruments Electrical instruments are of fundamental importance in the field of measurements. They are almost based on the magnetic effects...

ELECTROSTATIC INDUCTION

ELECTROSTATIC INDUCTION Electrostatic Induction - Electric induction is the phenomenon in which positive and negative charges are accumulated or separated...

TRANSFORMER LOSSES

TRANSFORMER LOSSES In practice the output power is always lesser then the input power and hence the efficiency of the transformer is always less than...

FLUORESCENCE

FLUORESCENCE When electromagnetic radiation falls on the certain crystalline substance, visible or ultraviolet light is emitted from the crystal. This...

CASSETTE

cassette The caste is the rigid holder that contains the screens and film. the front surface, the side facing the tube , should be made of material...

HOW X-RAY PRODUCTION TAKES PLACE?

SOURCE FOR XRAY PRODUCTION The production of x-ray needs the following requirements ·         Electron source...

CAPACITANCE OR CAPACITOR

CAPACITANCE OR CAPACITOR CAPACITANCE the property of a conductor to store electric charge is know as capacitance.it is defend as the ratio between...

THERMIONIC EMISSION

THERMIONIC EMISSION When a metal is heated, its molecules (Atom) take thermal energy. Some of its electrons take up so much energy that it can go away...

RECTIFIER,HALF WAVE RECTIFIER AND FULL WAVE RECTIFIER

RECTIFIER,HALF WAVE RECTIFIER AND FULL WAVE RECTIFIER RECTIFIER An electronic device that used to convert Alternative Currents to direct current...

TRANSFORMER AND PARTS OF TRANSFORMER AND ITS WORKING

TRANSFORMER A trans former is an electrical device which can convert electrical energy from one coil to another coil.the transformer is working on...

ELECTRIC CURRENT

ELECTRIC CURRENT The rate or amount of charge flow is called electric current i.e. electric current in other words we can say that The continuous flow...

COULOMB INVERSE SQUARE LAW AND OHM;S LOW

Coulomb inverse square law The force between two charges is directly proportional to the multiplication of both charges, and is inversely proportional...

AP KNEE , LATERAL KNEE AND SKYLINE(AXIAL PATELLA)

AP KNEE AND LATERAL KNEE Ap knee – This position done to visualize Fractures, dislocations of the knee Collimation- to include distal third of...

TIBIA/FIBULA AP OR LATERAL

TIBIA FIBULA AP/LATERAL TIBIA FIBULA AP Ap tibia/fibula  – This position done to visualize Fractures, dislocations of the tibia and fibula Collimation-...

CALCANEUS AXIAL AND LATERAL

AXIAL CALCANEUS  Axial calcaneus  – This position done to visualize Fractures, dislocations of the tarsal bones and subtalar joint that make...

DP FOOT,OBLIQUE,LATERAL

DP FOOT, OBLIQUE, LATERAL DP FOOT –  This position done to visualize Fractures, dislocations of the phalanges, metatarsals and tarsal...