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Summary Notes on AQA A-level Physics: Particles £4.99   Add to cart
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  7. Unit 1 PHYA1 - Particles, Quantum Phenomena and Electricity

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Summary Notes on AQA A-level Physics: Particles

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Summary of the content of Particle Physics ranging from Fundamental Forces to Feynman Diagrams. The notes were written according to the most recent specification. They include in depth explanations of each point in the spec, diagrams and key definitions as well as past paper questions with model an...

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  • July 16, 2023
  • 20
  • 2022/2023
  • Summary

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use of
types radiation en



kinetic
·high energy




3last put
themaydangerous
the




I



j . somewhat
strongly
ionising



3
. most
dangerous a
at
distance
least
ionising
·




penetrating
most
·




·



gamma-
unstable Alpha emission


alpha-heavy nuclei
·




· -
proton rich ↳"The Ra 6 +




·
ip ->
neutron rich




The Beta Emission

neutrino
beta +ve
plus:p after:atomic number-1,
+




-n +



B mass number the same



be the
neutrino-neutral, is
it needed to
carry away extra
ant: mutrino
energy
so the
that total
energy will
always same.


beta -p B ve
-
+
minus:n
+

after: 2+1. A the same

,Detection devices




I

, Annihilation and Pair Production




I because
in directions
opposite

the
because
opposite cha
of




the
of
particles




Example questions:




The nucleus will be unstable
undergo
and beta
plus
A will turn into and
emission.
proton
a neutron


a result.
MeV position) position as a




1) 2 MeV r, New
Selectron)
1. In
pair production an electron is also
2) 3 2 1.675x10 27 (3x168)2 1.5075x10%)
-

= =

x +



created.

2. No involved
photon is in
position emission



neutrino is emitted production
+ no in
pair

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