Particle Accelerators: a Cyclotron of Radius 0

question 30

Multiple Choice

Particle accelerators: A cyclotron of radius 0.25 m accelerates protons in a 1.7-T magnetic field. What is the frequency for the applied alternating voltage? (m_proton = 1.67 × 10^-27 kg, e = 1.60 × 10^-19C)

• A) 0.26 MHz
• B) 2.6 MHz
• C) 26 MHz
• D) 260 MHz

---

Definitions:

Lumen

The interior space or cavity of a tubular organ or structure, such as an artery or intestine, through which fluids pass.

Fenestrations

Small openings or pores, often found in the endothelial cells of capillaries, that allow for the exchange of substances between blood vessels and surrounding tissues.

Filtration Slits

Narrow gaps between the podocytes in the glomerulus of the kidney through which filtration of blood plasma occurs.

Podocytes

Highly specialized cells in the kidney that wrap around capillaries of the glomerulus, involved in filtration of blood to form urine.