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Nuclear test flash memory at e-Fotografija
Mark Peters : May 14th 2007 - 11:24 CET
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e-FotografijaNuclear test flash memory at e-Fotografija : Our good friend and DIWA member Matjaz Intihar from e-Fotografija has reviewed an ATP 4GB SDHC Class 6 flash memory card in Nuclear Power Plant Krško labs. ATP Class 6 4GB ProMax SD High Capacity (SDHC) is the latest addition to ATP ProMax family. Built upon SD Association 2.00 specification which enables capacities of 4GB up to 32GB, it maintains a minimum sustained data transfer speed rating of 6MB/sec. SDHC is the new generation SD card built upon the new SDA 2.00 specification, which allows SD cards to reach capacities of 4GB up to 32GB. The new specification is released in response to growing demand for high quality photo images and high resolution video recording capabilities.
Nuclear test flash memory at e-FotografijaNuclear test memory - SDHC card
According to Matjaz: "The results were expected. Secure Digital flash memory data transfer protocol is a combination of serial and parallel (4 bit parallel – 6 clock cycles are needed to transfer the information of one 24-bit colour pixel), so transfer speed depends on the crystal oscillator frequency. Crystal oscillators have a negative temperature coefficient and their frequency increases when the temperature goes down. But this all happens in a +/- 10 percent range."

Nuclear test flash card - Radiation and Safety
Matjaz continues: "Both cards kept data after relatively high doses. A conclusion can be drawn – there’s no need to worry about our pictures when we pass through airport scanning devices. Also we know that we can make pictures in a medical X-ray facility. With film, this was always risky. Worrying about whether our pictures can survive an X-ray scan is a thing of the past. While the new X-ray scanners have a “film safe” label, digital media is resilient even to those without the label."

Nuclear test flash memory - Stability and Endurance
"To illustrate this, the maximum allowed cumulative annual dose for the general population is 1 mSv. However, it is important to know that a single large dose has severely different effects than several smaller doses. As mentioned before, medical X-ray examinations range from 0.5 mSv in older machines to 0.2 mSv in new machines. While this doesn’t cause any measurable harm to the organism, there is no such thing as a safe dosage.", concludes Matjaz. You want to learn more about the ATP flash memory card review? Continue to read the nuclear test flash memory at e-Fotografija.

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