A beta ray is incident normally on a 0.35 cm thick lead slab (density = 11.4 g/cm) lies on the top of Lucite slab (density = 1.19 g/cm3). The beta rays emerge from the lead slab with an energy T1=3.69 MeV. The range R (in g/cm2) of the electrons is related to the kinetic energy T (in MeV) by the following: Lucite: R=0.334T1.5 Lead: R=0.426T т Lead 0.35 cm T1 d. Lucite What minimum thickness of Lucite (in cm) needed to Choose... + stop the beta rays from

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A beta ray is incident normally on a 0.35 cm
thick lead slab (density = 11.4 g/cm³) lies on
the top of Lucite slab (density = 1.19
g/cm). The beta rays emerge from the lead
slab with an energy T1=3.69 MeV.
The range R (in g/cm2) of the electrons is
related to the kinetic energy T (in MeV) by
the following:
Lucite:
R=0.334T1.5
Lead:
R=0.426T
T
Lead
0.35 cm
T1
d.
Lucite
What minimum thickness
of Lucite (in cm) needed to
stop the beta rays from
Choose... +
emergina the slah?
Transcribed Image Text:A beta ray is incident normally on a 0.35 cm thick lead slab (density = 11.4 g/cm³) lies on the top of Lucite slab (density = 1.19 g/cm). The beta rays emerge from the lead slab with an energy T1=3.69 MeV. The range R (in g/cm2) of the electrons is related to the kinetic energy T (in MeV) by the following: Lucite: R=0.334T1.5 Lead: R=0.426T T Lead 0.35 cm T1 d. Lucite What minimum thickness of Lucite (in cm) needed to stop the beta rays from Choose... + emergina the slah?
Lead
0.35 cm
d.
Lucite
What minimum thickness
of Lucite (in cm) needed to
Choose... +
stop the beta rays from
emerging the slab?
What is the range of T in
Choose... +
lead?
What is the energy of beta
rays when it entered the
Choose...
lead slab?
Transcribed Image Text:Lead 0.35 cm d. Lucite What minimum thickness of Lucite (in cm) needed to Choose... + stop the beta rays from emerging the slab? What is the range of T in Choose... + lead? What is the energy of beta rays when it entered the Choose... lead slab?
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