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Tag: radiation
New Device Converts DC Electric Field To Terahertz Radiation
2015-08-07 09:54:13| wirelessdesignonline News Articles
Terahertz radiation, the no-man's land of the electromagnetic spectrum, has long stymied researchers. Optical technologies can finagle light in the shorter-wavelength visible and infrared range, while electromagnetic techniques can manipulate longer-wavelength radiation like microwaves and radio waves.By Laurel Hamers
Tags: field
device
electric
radiation
Radiation Hazard/Human Exposure Modelling
2015-07-29 11:43:14| rfglobalnet Home Page
In any system design that involves radio frequency (RF) transmitters, protection against the dangers of extremely high levels of radiation is a large concern. There are the dangers of overexposure for humans in the general public, and there are dangers of accidental ignition of highly combustible liquids or ordinance in military environments. This application note discusses on the guidelines in place for radiation safety, and examples of radiation reference levels and cases with absolute restrictions.
Tags: exposure
radiation
modelling
Radiation Hardened Multiplexers suit space flight DAQ systems.
2015-07-15 14:31:07| Industrial Newsroom - All News for Today
Optimized for signal chain accuracy and timing performance, ISL71840SEH 30 V, 16-channel multiplexer and ISL71841SEH 30 V, 32-channel multiplexer feature silicon on insulator process that provides single event latch-up in heavy ion environments. Features include 8 kV ESD protection, R(ON) of 500 Ω at ±5 V, and propagation delays of <800 nsec as well as over-voltage protection, cold spare redundancy, and wide supply range with split-rail operation from ±10.8–16.5 V and absolute max of ±20 V.
Tags: systems
space
flight
suit
Intersil Unveils New Radiation Hardened Multiplexers for Space Flight Data Acquisition Systems
2015-07-13 18:09:11| Semiconductors - Topix.net
The ISL71840SEH 30V 16-channel multiplexer is a drop-in replacement for Intersil's widely adopted HS9-1840ARH, which has been aboard nearly every satellite and space exploration mission, including NASA's recent Orion spacecraft flight test. For applications with form factor constraints, the new ISL71841SEH 30V 32-channel multiplexer offers high performance and 41% reduced board space compared with an ISL71840SEH two-chip solution.
Tags: data
systems
space
flight
Focus on Risks to Kids from Cell Phones, WiFi Radiation
2015-06-26 20:36:43| Wireless - Topix.net
WiFi radiation that is pulsing in schools above safety limits recommended by independent scientists is just one of the health risks experts will tackle today at the Commonwealth Club, with a particular focus on health risks to children from cell phones and wireless technologies.
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