In a material medium, when a positron meets an electron both the particles annihilate leading to the emission of two gamma ray photons. This process forms the basis of an important diagnostic procedure called
In a material medium, when a positron meets an electron both the particles annihilate leading to the emission of two gamma ray photons. This process forms the basis of an important diagnostic procedure called
- [AIIMS 2003]
- A
$MRI$
- B
$PET$
- C
$CAT$
- D
$SPECT$
Similar Questions
In nuclear reaction $_2H{e^4}{ + _z}{X^A}{ \to _{z + 2}}{Y^{A + 3}} + A,\;A$ denotes
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On the bombardment of neutron with Boron. $\alpha$-particle is emitted and product nuclei formed is
On the bombardment of neutron with Boron. $\alpha$-particle is emitted and product nuclei formed is
What happens to the mass number and atomic number of an element when it emits $\gamma$-radiation?
What happens to the mass number and atomic number of an element when it emits $\gamma$-radiation?
- [NEET 2020]
Some radioactive nucleus may emit
Some radioactive nucleus may emit
- [IIT 1986]
The $\alpha$-particle is the nucleus of an atom of
The $\alpha$-particle is the nucleus of an atom of