A través de un escueto comunicado, la TSA ha anunciado que la orden del Congreso para modificar los escáneres corporales tenía como fecha límite el próximo mes de junio y dado que, hasta la fecha, Rapiscan no ha sido capaz de ofrecer una solución que satisfaga todos los requisitos de la TSA, la agencia federal estadounidense ha decidido rescindir su contrato.
En este párrafo queda claro que está destinado a personas:
For radiation safety, TSA issues procurement specifications that require all manufacturers to comply with nationally-recognized safety standards to ensure the safety of all passengers – including special populations like children, the elderly, and pregnant women – and operators during equipment usage
Y lo mejor, hasta se permiten comparar la radiación que recibes con otros hechos:
By the Numbers One year of naturally occurring background radiation: 300 millirem
Annual recommended limit to the public of radiation from man-made sources: 100 millirem
Chest X-ray: 10 millirem
Flight from New York to Los Angeles: 4 millirem
One day of natural background: approximately 1 millirem
Drinking three glasses of water a day for a year: 0.045 millirem
One backscatter X-ray screening: approximately 0.005 millirem
For Backscatter technology: A remotely located officer views the image and does not see the passenger, and the officer assisting the passenger cannot view the image. The image cannot be stored, transmitted or printed, and is deleted immediately once viewed. Additionally, there is a privacy algorithm applied to blur the image.
Y además:
A. Backscatter technology projects an ionizing X-ray beam over the body surface at high speed. The reflection, or “backscatter,” of the beam is detected, digitized and displayed on a monitor. Each full body scan produces less than 10 microREM of emission, the equivalent to the exposure each person receives in about 2 minutes of airplane flight at altitude. It produces an image that resembles a chalk-etching, and has a privacy filter applied to the entire body.
Está claro que existen otras tecnologías, pero ese nunca fue el debate.
#5 Pues yo no estoy tan seguro. La radiación que tú enlazas, de 1 mm, también se puede utilizar para hacer un escáner, incluso en 3D, cosa que los escáneres basados en rayos X no pueden hacer. La equivalencia en terahertzs al escáner de rayos X es http://en.wikipedia.org/wiki/Millimeter_wave_scanner .
Donde quiera que busque encuentro que hay escáneres corporales que funcionan gracias a la dispersión de los rayos X.
Vaya manera de hacer el ridículo. Después de gastarse una pasta, levantar polémicas, causar demoras... Y ahora, los retiran. Eso si, seguro que por el camino alguien ha ganado mucho dinero. Menos mal que esto solo pasa en España...uy no
Backscatter X-ray is an advanced X-ray imaging technology. Traditional X-ray machines detect hard and soft materials by the variation in transmission through the target. In contrast, backscatter X-ray detects the radiation that reflects from the target. It has potential applications where less-destructive examination is required, and can be used if only one side of the target is available for examination.
The technology is one of two types of whole body imaging technologies being used to perform full-body scans of airline passengers to detect hidden weapons, tools, liquids, narcotics, currency, and other contraband. A competing technology is millimeter wave scanner. These airport security machines are also referred to as "body scanner", "whole body imager (WBI)", and "security scanner". Reports of official discontinuation at airports began circulating January 18th, 2013.[2]
Y entiendo que ahora se retiran estos de "retrodispersión", cosa que me parece genial. No me sentiría cómoda pasando por ese tipo de escáneres que no dejan apenas nada a la imaginación
Comentarios
Para mi no es dupe (inglés tsa-retirara-todos-escaner-corporales-aeropuertos-usa)
#7 Directamente de la página de la TSA:
Aquí describen la tecnología: http://www.tsa.gov/research-center/x-ray-screening-technology-safety-reports
En este párrafo queda claro que está destinado a personas:
For radiation safety, TSA issues procurement specifications that require all manufacturers to comply with nationally-recognized safety standards to ensure the safety of all passengers – including special populations like children, the elderly, and pregnant women – and operators during equipment usage
Y lo mejor, hasta se permiten comparar la radiación que recibes con otros hechos:
By the Numbers
One year of naturally occurring background radiation: 300 millirem
Annual recommended limit to the public of radiation from man-made sources: 100 millirem
Chest X-ray: 10 millirem
Flight from New York to Los Angeles: 4 millirem
One day of natural background: approximately 1 millirem
Drinking three glasses of water a day for a year: 0.045 millirem
One backscatter X-ray screening: approximately 0.005 millirem
Aquí especifican las medidas que se toman para proteger la privacidad: http://www.tsa.gov/ait-frequently-asked-questions
For Backscatter technology: A remotely located officer views the image and does not see the passenger, and the officer assisting the passenger cannot view the image. The image cannot be stored, transmitted or printed, and is deleted immediately once viewed. Additionally, there is a privacy algorithm applied to blur the image.
Y además:
A. Backscatter technology projects an ionizing X-ray beam over the body surface at high speed. The reflection, or “backscatter,” of the beam is detected, digitized and displayed on a monitor. Each full body scan produces less than 10 microREM of emission, the equivalent to the exposure each person receives in about 2 minutes of airplane flight at altitude. It produces an image that resembles a chalk-etching, and has a privacy filter applied to the entire body.
Está claro que existen otras tecnologías, pero ese nunca fue el debate.
#5 Pues yo no estoy tan seguro. La radiación que tú enlazas, de 1 mm, también se puede utilizar para hacer un escáner, incluso en 3D, cosa que los escáneres basados en rayos X no pueden hacer. La equivalencia en terahertzs al escáner de rayos X es http://en.wikipedia.org/wiki/Millimeter_wave_scanner .
Donde quiera que busque encuentro que hay escáneres corporales que funcionan gracias a la dispersión de los rayos X.
#6 http://bodyscannertruth.com/?p=1397
http://www.tsascanthis.com/health-concerns/
http://www.extremetech.com/extreme/132620-how-terahertz-laser-scanners-will-spy-on-you-in-airports
http://modernsurvivalblog.com/security/terahertz-radiation-scanners-for-nyc-cops/
Los rayos X se utilizan para objetos, nunca para personas: La dosis de radiacción no sería despreciable.
Vaya manera de hacer el ridículo. Después de gastarse una pasta, levantar polémicas, causar demoras... Y ahora, los retiran. Eso si, seguro que por el camino alguien ha ganado mucho dinero. Menos mal que esto solo pasa en España...uy no
Errónea: Los escáneres corporales no usan rayos X.
#2 ¿Seguro?
http://en.wikipedia.org/wiki/Backscatter_X-ray
Backscatter X-ray is an advanced X-ray imaging technology. Traditional X-ray machines detect hard and soft materials by the variation in transmission through the target. In contrast, backscatter X-ray detects the radiation that reflects from the target. It has potential applications where less-destructive examination is required, and can be used if only one side of the target is available for examination.
The technology is one of two types of whole body imaging technologies being used to perform full-body scans of airline passengers to detect hidden weapons, tools, liquids, narcotics, currency, and other contraband. A competing technology is millimeter wave scanner. These airport security machines are also referred to as "body scanner", "whole body imager (WBI)", and "security scanner". Reports of official discontinuation at airports began circulating January 18th, 2013.[2]
#3 Seguro: http://en.wikipedia.org/wiki/Terahertz_radiation
#2 Yo tenía entendido que en los aeropuertos se usan dos tipos de escáner:
-de onda milimétrica - que no usan rayos X
-de retrodispersión - que utilizan rayos X de baja intensidad.
http://www.radiologyinfo.org/sp/safety/index.cfm?pg=sfty-airport-scanners
http://salud.univision.com/es/enfermedades-y-condiciones/m%C3%A1s-controversia-por-los-esc%C3%A1neres-en-aeropuertos
Y entiendo que ahora se retiran estos de "retrodispersión", cosa que me parece genial. No me sentiría cómoda pasando por ese tipo de escáneres que no dejan apenas nada a la imaginación