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Radiation Physics

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Published in: Physics
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It includes basic physics whic is used in radiology department

Ayush K / Jaipur

2 years of teaching experience

Qualification: B.Sc (Jaipur National University , Jaipur - 2019)

Teaches: Microsoft Certification, All Subjects, Chemistry

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  1. JAYOTI VIDYAPEETH WOMEN'S UNIVERSITY, JAIPUR Government of Rajasthan established Through ACT No. 17 of 2008 as per UGC ACT 1956 NAAC Accredited University Faculty of Physiotherapy & Diagnostics Faculty Name- JV'n Ayush Gupta Program-B.Sc. RT 1 SEM Course- General Radiation physics-I Session- Radiation exposure and Absorb dose Academic Day starts with — • Greeting with saying 'Namaste' by joining Hands together following by 2-3 Minutes Happy session, Celebrating birthday of any student of respective class and National Anthem Radiation exposure and Absorb dose - the term exposure (X) refers the radiation quantity measured in terms of ionization in air, in a small volume around a point. Exposure is a source related term. Exposure from an X ray source obeys inverse square law. The unit of exposure is Roentgen (R). One Roentgen shall be the quantity of X or gamma radiation such that the associated corpuscular emission 0.001293 grams of air (1 cc of dry air at NTP), produces in air, ions carrying 1 e.s.u. of quantity of electricity of either sign. The unit may also be defined in terms of Sl unit as IR = 2.58 x 10-4 c/Kg of air Absorbed dose - the term absorbed dose (D) refers the amount of energy absorbed per unit mass of the substance. The unit of absorbed dose is rad (r), which means radiation absorbed dose. 1 rad = 1 J/Kg The unit rad is related to gray as IGY = 100 rads. Physical Quantities — To study the matter and energy and their various properties, measurements of physical quantities such as length, mass and time are needed. Any physical quantity is measured accurately in terms of a standard of its own kind. For example — distance is measured in meters, masses in kilograms and time in seconds. Therefore, the unit is a quantity adopted as a standard of measurement in terms of which similar quantities can be measured, e.g., Kilogram, meter, and second.
  2. Fundamental units — the units which are independent of one another and have their own standard (base) are called fundamental units. Examples - Mass in kilogram, Length in meter, Time in second. Derived units - the unit, which are not having their own standard (base) and obtained from fundamental units are called Derived units. Examples - Area in meter2, Velocity in meter/second Academic Day ends with- National song' Vande Mataram'

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