Applications of Nuclear Instruments and Methods

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Applications of Nuclear Instruments and Methods
Nuclear Medicine Diagnostics
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Nuclear Magnetic Resonance Imaging (MRI)

• 1.5T, Master
• Q-Body Coil
• 3D T1-FFE
• Low-high profile order
• 50 x 1.6 mm slices oc.
• 512 x 196 matrix
• FOV 400 x 320 mm
• TE / TR 1.3 / 5.0 ms
• WFS 0.9 pix ( 62 kHz)
• Flip 3518 seconds Breathhold
• 30 cc Gadolinium _at_ 2cc/sec.

18 Second MRI image!!
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Radiation Detectors for Medical Imaging
Positron emission tomographic slice through
patients brain
Positron e (anti-matter) annihilates with
electron e- (its matter equivalent of the same
mass) to produce pure energy (photons, g-rays).
Energy and momentum balance require back-to-back
(1800) emission of 2 g-rays of equal energy
g detectors (NaI(Tl))
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Positron Emission Tomography
Positron emission tomographic image of the heart
After administration of radioactive water H217O
to blood flow, after infarct episode? blood flow
After administration of radioactive acetat
11CH3COOX ? metabolism
Loveland, Morrissey, Seaborg
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DNA Analysis
DNA sample decomposed into single strands, cut
by enzymes into pieces, use electrophoresis to
separate according to size,React separated
segments with radio-labeled probe protein
sequences,identify by auto-radiography
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Applications of Nuclear Instruments and Methods
Nuclear Medicine Therapy
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Nuclear Batteries with Really Long Lifetimes
Nuclear battery a radioactive source placed
inside a capacitor emits a particles, which build
up an electric charge on the plates, or deliver
an electric current. Such batteries can operate
for long durations, a major fraction of a century
(e.g., t1/286 a) and can be made small enough to
be used in implant pace makers.
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Cancer Treatment with Neutrons
Patient treatment station
Cyclotron accelerates protons, which generate a
well defined secondary beam of neutrons with
variable energy and range in tissue.
Treatment success rates of neutron and gamma
irradiation
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Radio Therapy
Heavy-Ion Radio-Therapy Non-Intrusive Brain
Surgery
Heavy ions (here 12C) have a well-defined range
in materials. They lose much of their kinetic
energy shortly before complete stopping, leading
to a radiation dose concentrated at the end of
their range. This provides a non-intrusive
surgical tool
12C Beam 12GeV