Nuclear Physics
, Radiation
Nuclear
22nd
January 202
Imited
by nuclei
of unstable aroms
>
-
·
Alpha 1 -
Licm
· Beta- (B) -
20cm -
3m
· (B")
Betat -
20cm -3m
Gamma (4) 1 km
-
Over
>>
Uses
-
o
Alpha smoke detectors -
least
penetrating
·
Beta : Thickness of paper-penetration depends on thickness
Gammas Thickness its the
of steel most
penetrating
· -
check
for cracks
Medical
therapy
>
·
Count Rate
Geigerdetects rate'
of
>
'count which
counter
gives
is the number pieces of radiation it
-
a
per unit time
.
>
-
Count Rate is Becqueres (BG)
1Bq =
1 per second/1
·
Activity
Number
of decays per unit time
of the
>
-
source
Unit :
Bq
.
- Sometimes
'disintegration' is used
for deeay
.
·
Irradiation
Radioactive
of the
> is
material
system
out
-
>
-
Not radioactive , doesn't affect the naceus of the atoms
.
exprotection : Shield (metal concrete) to radiation
, stop
reaching you .
·
Contaminations
Radioactive material is in on
body
.
=
your
or
> Protection : Gloves Suit Mask
tongs to substance
getting
-
stop in on
you
, , , or .
,
, Radiation
Nuclear
22nd
January 202
Imited
by nuclei
of unstable aroms
>
-
·
Alpha 1 -
Licm
· Beta- (B) -
20cm -
3m
· (B")
Betat -
20cm -3m
Gamma (4) 1 km
-
Over
>>
Uses
-
o
Alpha smoke detectors -
least
penetrating
·
Beta : Thickness of paper-penetration depends on thickness
Gammas Thickness its the
of steel most
penetrating
· -
check
for cracks
Medical
therapy
>
·
Count Rate
Geigerdetects rate'
of
>
'count which
counter
gives
is the number pieces of radiation it
-
a
per unit time
.
>
-
Count Rate is Becqueres (BG)
1Bq =
1 per second/1
·
Activity
Number
of decays per unit time
of the
>
-
source
Unit :
Bq
.
- Sometimes
'disintegration' is used
for deeay
.
·
Irradiation
Radioactive
of the
> is
material
system
out
-
>
-
Not radioactive , doesn't affect the naceus of the atoms
.
exprotection : Shield (metal concrete) to radiation
, stop
reaching you .
·
Contaminations
Radioactive material is in on
body
.
=
your
or
> Protection : Gloves Suit Mask
tongs to substance
getting
-
stop in on
you
, , , or .
,
