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An overview of particle accelerators, their applications, and research opportunities at the university of maryland, college park's institute for research in electronics & applied physics (ireap). Topics include the basics of particle accelerators, common applications, research at maryland, and opportunities for students. The document also covers various accelerator schemes, applications in medicine, industry, and science research, and the challenges of understanding and modeling space charge effects.
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Institute for Research inElectronics IREAPIREAP
&^ Applied Physics Research Focus: Interdisciplinary research in engineering and the physical sciences withemphasis on large and complex experiments. Faculty and students fromElectrical & Computer Engineering, Physics and Materials Science.^ Specialties:^ • Chaos and Nonlinear Dynamics• Space & Fusion Plasmas• Beam Physics• Microwaves and Electronics• Nanoscience and Engineering• Materials Processing(using microwaves, plasmas, ion beams)
Anode(A) HighVoltage Heat
PhosphorScreen
IREAPIREAP
Source^
Transport^
Target (many km) Accelerate
IREAPIREAP
Accelerators Medicine• Imaging• Isotope production• Cancer Radiotherapy
Environment• Radioactive waste treatment
Industry• Ion implantation• Food Sterilization• Lithography• Nanotechnology
Science Research• Particle Physics• Nuclear Physics• Astrophysics• Probing material structure• Biosciences• Microscopy• Artifact dating• Light sources (includes X-ray)• Neutron sources• Lasers
Energy Production• Controlled nuclear fusion
IREAPIREAP
Bend magnet radiation
Undulator radiation
Technology^ Spectrum
(^2) w r^ (1^ K^ )w 2 λ λ ≈ + 2 γ
Radiated wavelength: Normalized vector potential of undulatorK= 0.93 Bw^
(Tesla)^ λrms (cm)^ ≈^ order unityw electronbeam
input radiation
amplifiedradiation bunchedelectron beam
Treatment of Cancer withProtons or Heavy Ionshttp://www.nirs.go.jp/ENG/nirs.htm
-^ Typical accelerator measured in km, while focusingmagnets vary on a scale of cm.
IREAPIREAP
3.7 m 0.2-3^ μm rms Emittance
0.6-100 mA Current Range
20 eV Energy Spread
10 keV Energy
Depressed Tune
Zero-Current Tune
5-100 ns Pulse length
200 ns Circulation time
IREAPIREAP
(~ 7.8 G/cm)
36 Dipoles(~ 15 G) 32 cm
