Question

To properly sterilize a 1 kg package of meat in a food plant using high-energy electrons (electron energy: 10 MeV, beam current: 0.3 mA), how much electron energy must be deposited?

Options:
a. 3,000 J
b. 7,000 J
c. 10,000 J
d. 21,000 J

Answer 1

The amount of electron energy that needs to be deposited to sterilize a 1 kg package of meat using high-energy electrons, we need to know the duration of exposure.

Step-by-step explanation:

To calculate the amount of electron energy that needs to be deposited to sterilize a 1 kg package of meat using high-energy electrons, we can use the equation:

Energy = Power x Time

First, we need to calculate the power using the equation:

Power = Current x Voltage

Given that the electron energy is 10 MeV and the beam current is 0.3 mA, we can convert the electron energy to joules:

1 MeV = 1.6 x 10^-13 J

10 MeV = 1.6 x 10^-12 J

Next, we can calculate the power:

Power = 0.3 mA x 1.6 x 10^-12 J

Now, we can calculate the energy:

Energy = Power x Time

Given that the beam current is 0.3 mA, or 0.3 x 10^-3 A, and the time is unknown, we cannot calculate the energy without the duration of exposure.