In a material medium,when a positron meets an | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) When a positron $(e^+)$ encounters an electron $(e^-)$,they annihilate each other because they are particle-antiparticle pairs.This annihilation p

Vedclass · Accepted Answer

$PET$

Vedclass · Answer

(B) When a positron $(e^+)$ encounters an electron $(e^-)$,they annihilate each other because they are particle-antiparticle pairs.This annihilation process results in the conversion of their mass-energy into two gamma-ray photons,typically emitted in opposite directions to conserve momentum.This physical phenomenon is the fundamental principle behind Positron Emission Tomography,commonly abbreviated as $PET$ scan,which is used in medical diagnostics to image metabolic processes in the body.

In a material medium,when a positron meets an electron,both particles annihilate,leading to the emission of two gamma-ray photons. This process forms the basis of an important diagnostic procedure called:

Similar Questions

Two lithium nuclei in a lithium vapour at room temperature do not combine to form a carbon nucleus because

When a slow neutron goes sufficiently close to a ${U^{235}}$ nucleus,then the process that takes place is

What is used as a moderator in a nuclear reactor?

Find the value of $x$ and $y$ in the following nuclear reaction:
${}_{92}^{235} U + {}_{0}^{1} n \rightarrow {}_{x}^{133} Sb + {}_{41}^{y} Nb + 4 {}_{0}^{1} n$

The energy of the fast neutrons emitted in a nuclear fission reactor is approximately $\qquad$ .

Vedclass Test Series

Exam Paper Generator

Online Exam Module