The Differential Scattering Cross Section for Particles to Scatter by 60

question 9

Multiple Choice

The differential scattering cross section for particles to scatter by 60 ^$\circ$ off a 1 mm² area target is 1.5 * 10^-18 m²/sr.A detector with an area of 2.0 cm² is placed 1.0 m away from the target in order to detect particles that have been scattered at 60 ^$\circ$ .If 2 * 10¹⁸ particles hit the target every second,how many will strike the detector every second?

• A)100
• B)300
• C)600
• D)1000
• E)2000

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Definitions:

Simple Cuboidal

Epithelial cells shaped like cubes or squares; these cells are found in glands and ducts and function in secretion or absorption.

Epithelium

a layer of cells forming the epidermis of the skin and the surface layer of mucous and serous membranes, playing roles in protection, secretion, and absorption.

Flat Cells

Cells that are flattened in shape, often found lining surfaces such as the skin or blood vessels, contributing to the formation of epithelial tissues.

Epithelial Tissue

Epithelial tissue is a layer of cells that forms the outer covering of the body and the lining of internal organs and structures, serving protective, absorptive, and secretory functions.