85 Result(s) for 'SubCategory='Biophysics''
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   Chapter DOI:10.5005/jp/books/11603_8      

Radioactive tracers have been in use in medical diagnostics for a long time and even today, the thyroid gland continues to be most frequently examined organ in nuclear medicine. Over 10,000 hospitals worldwide use radioisotopes in medicine, and about 90 per cent of the procedures are diagnostic. Radioisotope is characterized by the type and energy of radiati... [More]

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Chapter-08 Sound by Thayalan K (2007) Edition : 1/e
DOI:10.5005/jp/books/10101_8      

This chapter includes frequency, velocity, intensity, Ultrasound production, Piezo electric effect, Vocalization and hearing (Hearing, deafness, test of hearing, Tinnitus, Hearing aid, Audiometer), Medical use of ultrasound (A-mode, M-mode, B-mode, Doppler ultrasound), Noise pollution, Noise control measure and Application of Sound in nursing (Heart sound, F... [More]

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Chapter-08 X-ray Generator Circuits by Thayalan Kuppusamy (2017) Edition : 2/e

This chapter mainly focuses on the X-ray generator circuits. The X-ray generators use high power transformers and rectifiers to generate suitable DC voltage to the X-ray tube. Generally, every X-ray generator will have dedicated rectifier circuit, depending upon the rating. However, X-ray tube itself serves as a rectifier in low power X-ray tubes. Single-pha... [More]

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Chapter-09 Electricity and Electromagnetism by Thayalan K (2007) Edition : 1/e
DOI:10.5005/jp/books/10101_9      

This chapter explains about nature of electricity, potential, Current, Resistance, Flow of electricity (magnetic effect, Heating effect), faraday’s laws of electrolysis, electricity and human body, ECG, EEG, EMG, ECT, Electromagnetism, laws of electromagnetic induction (faraday’s law, Lens law), Fleming’s right hand rule, self and mutual induction, CT scanni... [More]

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Chapter-09 Gravity by Sharma Suresh K (2014) Edition : 1/e
DOI:10.5005/jp/books/12310_9      

In this chapter author describes about the specific gravity; center of gravity; mass and weight; and principles of gravity. Author discuss that the important principle of gravity is Archimedes’ Principle. Hydrometer, urinometer operates upon this principle. Author also elaborates the effects of gravitational forces on human body and application of principles... [More]

   Chapter DOI:10.5005/jp/books/11603_9      

Nuclear magnetic resonance has emerged as a powerful non-invasive imaging technique in the medical field. It uses magnetic fields and radio frequency signals to obtain anatomical information about the human body as cross sectional images in any desired direction and can easily discriminate between healthy and diseased tissue. Nuclear magnetic resonance image... [More]

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Chapter-09 Radioactivity and Gamma Rays by Thayalan Kuppusamy (2017) Edition : 2/e

This chapter focuses on the radioactivity and gamma rays. Radioactivity is a nuclear phenomenon, was first discovered by Henri Becquerel in 1896. Radioactivity is the process by which a nuclei undergo disintegration and emits either alpha or beta and gamma radiations. During the radioactive process, the atom changes its atomic number and chemical identity. G... [More]

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Chapter-10 Atomic Energy by Thayalan K (2007) Edition : 1/e
DOI:10.5005/jp/books/10101_10      

This chapter explains about Atomic structure (Nucleus, Atomic number, mass number, isomer, isotone, isobar and isotope), Discovery of X-rays (properties, production, Modern X-ray tube, X-ray images), Radioactivity (laws of radioactivity, alpha decay, beta decay, gamma rays, Half life, production and uses of radioisotopes), Radiation protection (Radiation qua... [More]