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The photoelectric effect

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Trains for the twenty-first century

X-ray computed tomography: reading the unreadable

Peter Main describes how X-ray computed tomography has been used to read a fragile ancient scroll that cannot be opened

Figure 1A single shadow of an object can be misleading

The terms in bold link to topics in the AQA, Edexcel, OCR, WJEC and CCEA A-level specifications, as well as the IB, Pre-U and SQA exam specifications.

X-ray absorption by atoms depends upon atomic number. This is exploited in X-ray computed tomography.

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Previous

The photoelectric effect

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Trains for the twenty-first century

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