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

---

Definitions:

Chlorine

A highly reactive, greenish-yellow gaseous halogen with the symbol Cl and atomic number 17, widely used in water treatment, bleaches, and industrial processes.

Ionic Compound

An ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding, typically formed between metal cations and non-metal anions.

Phosphorus

A reactive, non-metallic element found in Group 15 of the periodic table, essential for life.

Calcium

A chemical element with the symbol Ca and atomic number 20, a reactive, pale yellow metal that forms compounds with many other elements.