![]() Comparably, an hour on an airplane at a high altitude exposes a passenger to 300 microrem, and the average person is exposed to 1,000 microrem of radiation over the course of a normal day. One scan emits less than 10 microrem, the unit used to measure radiation. The amount of radiation used during this scan is equal to 15 minutes of exposure to natural background radiation such as the sun's rays. The X-ray is not strong enough to penetrate much beyond the skin, so it cannot find weapons that may be hidden in body cavities. The backscatter uses a narrow, low-intensity X-ray beam that scans the entire body at a high speed. ![]() Passengers will be directed to stand against a refrigerator-size backscatter machine as a "pencil-thin" X-ray beam rapidly scans them to produce textured "charcoal outlines" of their bodies. The older type of full-body scanners use so-called backscatter radiation to scan the entire body to detect foreign objects. The image looks like a fuzzy photo negative.īackscatter radiation X-ray full-body scanners "Millimeter wave" (radio wave) full-body scanners. The image looks like a chalk drawing (shown right). Backscatter radiation X-ray full-body scanners. There are 2 types of full-body scanner machines that use "weak" X-rays and radio waves respectively: Tweets and links do not represent endorsement, approval or support. Tweets are not research articles - they are 140-character messages - please always go to the original source, links, etc. RW started his new edition of Top 10 issues in hospital medicine for 2009, see the 2008 edition: Most popular "Top 5" of everything topics for 2009 by LifeHacker ĭr. Who did Google make cry this year? 9 startup dreams & industries Google crushed in 2009 Top Google Apps in 2009 - a list of Google services that were launched or were significantly improved in 2009 This gives her more time to write that 11th book: #ECHOFON TWITTER RAY ALLEN HOW TO#How to use social networking in your doctor job hunt - AMA News įree courses from top universities now easier to find: ġ02-year old Merle Phillips decided to retire. Medical news tweets are not research articles - they are 140-character messages - please always go to the original source, links, etc. How McDonald's makes sure its burgers are safe: a glimpse into the world of extreme food safety - USA Today Household Transmission of 2009 H1N1 Influenza: contacts less than 18 years of age were twice as susceptible as 19-50 yr Īctivated Protein C for Sepsis: clinical benefit and recommendations are controversial. Never too late to quit smoking: heart attack survivors who quit live longer than those who keep puffing away Wedding ring dermatitis: Till Dermatitis Do Us Part "A burger or fried chicken with a side of diabetes?" How fast food increases BMI and diabetes risk: Women who ate fast food burgers or fried chicken twice a week were 40-70% more likely to develop type 2 diabetes ![]() Zinc fingers can be deployed as a word processing system for cutting and pasting genetic text (DNA) Zinc Fingers May be a New Way to Edit DNA and Give Hope for Gene Therapy. Coffee is the second most widely traded commodity in the world, after oil It is in a bullet points format with links to the original sources which include 350 RSS feeds that produce about 2,500 items per day:Ĭoffee May Have Some Health Perks, but Can Brew Trouble in People With Certain Conditions. Health News of the Day is a daily summary made from the selected links I post on Twitter. ![]()
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