Which Technique Is Most Likely to Result in Photon Contamination

question 18

Multiple Choice

Which technique is most likely to result in photon contamination of the electron beam?

• A) use of an electron gun
• B) use of a bending magnet
• C) use of a scattering foil
• D) use of a scanning beam

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Definitions:

Virions

Complete virus particles that consist of an RNA or DNA core with a protein coat sometimes with external envelopes and that are the extracellular infective form of a virus.

DNA Polymerase

An enzyme that catalyzes the synthesis of new DNA strands from nucleotide precursors, essential for DNA replication and repair processes.

Retroviruses

A class of viruses that use reverse transcriptase to convert their RNA genome into DNA, integrating it into the host cell’s DNA for replication.

RNA Viruses

Viruses that have RNA as their genetic material and often show high mutation rates, influencing the dynamics of infectious diseases.