Fears of radiation exposure from normal use of detectors

Reference no: EM13179076

a particular smoke detector contains 2.35 uCi of ^241Am, with a half-life of 458 years. the isotope is encased in a thin aluminum container. Calculate the mass of the ^241Am in grams in the detector.

Fears of radiation exposure from normal use of such detectors are largely unfounded. Identify reasons why ^241Am smoke detectors are perfectly safe.

1. The number of alpha particles leaving the case are low

2. The detector is housed in an aluminum case

3. The amount of americium is low

4. The detector has a plastic cover.

5. Ions get trapped by electrodes

6. The penetrating power of the alpha particles is limited.

Reference no: EM13179076

Questions Cloud

How many gallons of gas would he need to drive miles : Felipe drove miles using gallons of gas. At this rate, how many gallons of gas would he need to drive miles?

The book value of the equipment inventory : What was the book value of the equipment inventory at the six-year point, substituting the new hydraulic lift for the original after the new lift had joined the inventory?

Find out the concentration of x in an unknown solution : To determine the concentration of X in an unknown solution, 1.00 mL of 8.01 mM S was added to 4.00 mL of the unknown X solution and the mixture was diluted to 10.0 mL

How should the company fill the order : The company receives an order for 580 notepads, together with a check for $328. If the order fails to specify the number of each type, how should the company fill the order?

Fears of radiation exposure from normal use of detectors : Fears of radiation exposure from normal use of such detectors are largely unfounded. Identify reasons why ^241Am smoke detectors are perfectly safe.

Find the intervals : find the intervals on which f(x) is increasing and decreasing and find the x- and y- coordinates of all the local extrema

Determine the whole number of standard deviations : Determine the whole number of standard deviations that includes all data values.

Discuss industry concentration-demand and market conditions : In the 1990s, five firms supplied amateur color film in the United States: Kodak, Fuji, Konica, Agfa, and 3M. From a technical viewpoint, there was little difference in the quality of color film produced by these firms, yet Kodak's market share wa..

What is the kernel of phi : Prove that this is a homonorphism, what is the kernel of phi? And what is phi(R)?

User Account

All Pages