Skip to main content

Are X-rays Safe?

By
X-rays pass through our flesh and organs. The large calcium molecules that make up our skeleton block the path of x-rays. This results in the negative image seen here
X-rays pass through our flesh and organs. The large calcium molecules that make up our skeleton block the path of x-rays. This results in the negative image seen here 

•Did you know that falling out of bed kills 450 people a year in the US. 

•Ants claim another 30 lives and vending machines kill around 13 people; Safety is a relative term.

•An x-ray is a form of high energy radiation with a wavelength about 10,000 times shorter than that of visible light. 

•The danger with x-rays is that they can knock electrons away from atoms, creating ions; this is why x-rays are called 'ionising radiation'. 

•Ions are much more reactive than atoms and can shoot about your body damaging important molecules like DNA. 

•This can cause mutation, or even cancer, if the dose is high enough.

•But that is the key - 'if the dose is high enough.' 

•The increase in radiation your body receives during an x-ray is equivalent to the extra radiation you are exposed to during a trans-atlantic flight.

•Medical x-rays are now very safe (the technician is in greater danger than you are due to the frequency of possible exposure), and much safer than being cut open every time a doctor needs to look inside you.


Labels:

Comments

Post a Comment

Popular posts from this blog

How Energy conversion from coal is done?

By
Single generator sets of over 600 MW are now used in the UK, though there are many smaller generators in use. A 600 MW generator can supplythe average needs of over 1 million UK households. Three or four such generators are typically installed in a single large coal-fired station which isoften sited close to a coal mine, away from the city dwellers who consume the electricity. Such generators are usually driven by a compound arrangement of highpressure, intermediate-pressure and low-pressure turbines, increasing in size as the pressure decreases. Modern turbines rotate in a speed range from 1500 to 3500 r.p.m., usually 3000 r.p.m. for the UK’s 50 Hz system. For large coal-fired plant the steam pressure could be 25 megapascals (MPa) with steam temperatures of 500–600 °C to improve the thermodynamic efficiency. In nuclear reactors, which operate under less demanding conditions, the steam is superheated to about 5 MPa and 300 °C. Modern water tube boilers are complex and have ...
Post a Comment
Read more

How ASPs works?

By
The Web and the Internet began to really heat up and receive significant media exposure starting around 1994. Initially, the Web started as a great way for academics and researchers to distribute information; but as millions of consumers flocked to the Internet, it began to spawn completely new business models. Three good examples of innovative models include:   • Amazon - Amazon (which opened its doors in July, 1995) houses a database of millions of products that anyone can browse at any time. It would have been impossible to compile a list this large in any medium other than the Web.   • Ebay - Online auctions make it easy and inexpensive for millions of people to buy and sell any imaginable item. It would be impossible to do this at a reasonable cost or in a timely manner with any medium other than the Web.   • Epinions - Thousands of people contribute to a shared library of product reviews. One of the Web's greatest strengths is its worldwide view a...
Post a Comment
Read more

All about Electronics & Instrumentation Engineering)(EI)

By
  Vision : To be globally recognized as a seat of learning and innovation in Electronics for application to Communication, Transportation, Defence, Industry, Health Care, Entertainment, and many other consumer products.  Mission : 1). To produce quality engineers in the field of Electronics and related domains.  2) To conduct research and develop products in the fields of Chip design, Communication Systems, Electronics Instrumentation, Signal Processing and other related areas with strong emphasis on critical state of the art applications.  3) To grow in the area of Design and Manufacturing of chips, boards and systems.     Program Educational Objectives :  I.  To provide students a successful career in industry that meets the needs of national and multinational companies.  II.  To develop the ability among students to synthesize data and technical concepts for application to electronic product design and to solve real...
Post a Comment
Read more