What percentage of energy does the latent PSP image lose in 8 hours?

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Multiple Choice

What percentage of energy does the latent PSP image lose in 8 hours?

Latent image fading in photostimulable phosphor (PSP) plates occurs because the stored energy sits in trap sites and slowly decays over time. After exposure, the plate holds a signal that will be read out when scanned, but some of that trapped energy leaks away or recombines if the plate sits unused. Over eight hours, the rate of this fading is such that about one-quarter of the stored signal is lost under typical storage conditions. That’s why the energy loss is around 25% in eight hours. Keeping plates cool and dark, and scanning promptly, helps minimize this fading.

Latent image fading in photostimulable phosphor (PSP) plates occurs because the stored energy sits in trap sites and slowly decays over time. After exposure, the plate holds a signal that will be read out when scanned, but some of that trapped energy leaks away or recombines if the plate sits unused. Over eight hours, the rate of this fading is such that about one-quarter of the stored signal is lost under typical storage conditions. That’s why the energy loss is around 25% in eight hours. Keeping plates cool and dark, and scanning promptly, helps minimize this fading.

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