Here's a list of particle accelerator labs in North America. Whether, this is the type of work you wish to do is what you have to determine. There are certainly other labs and research facilities that deal with the types of things you seem interested in.
Aside from earning a paycheck, working at such a facility doing grunt work will give you insight into the work environment and personality types that succeed in that field. Until you are sure what field you wish to learn about and pick a career in, I recommend doing a little sweat research before you waste time and money.
88" Cycl. 88-Inch Cyclotron, Lawrence Berkeley Laboratory (LBL), Berkeley, CA
ALS Advanced Light Source, Lawrence Berkeley Laboratory (LBL), Berkeley, CA (ALS Status)
ANL Argonne National Laboratory, Chicago, IL (Advanced Photon Source APS [status], Intense Pulsed Neutron Source IPNS, Argonne Tandem Linac Accelerator System ATLAS)
BNL Brookhaven National Laboratory, Upton, NY (AGS, ATF, NSLS, RHIC)
CAMD Center for Advanced Microstructures and Devices
CESR Cornell Electron-positron Storage Ring, Cornell University, Ithaca, NY (CESR Status)
CHESS Cornell High Energy Synchrotron Source, Cornell University, Ithaca, NY
CLS Canadian Light Source, U of Saskatchewan, Saskatoon, Canada
CNL Crocker Nuclear Laboratory, University of California Davis, CA
FNAL Fermi National Accelerator Laboratory , Batavia, IL (Tevatron)
IAC Idaho accelerator center, Pocatello, Idaho
IUCF Indiana University Cyclotron Facility, Bloomington, Indiana
JLab aka TJNAF, Thomas Jefferson National Accelerator Facility (formerly known as CEBAF), Newport News, VA
LAC Louisiana Accelerator Center, U of Louisiana at Lafayette, Louisiana
LANL Los Alamos National Laboratory
MIBL Michigan Ion Beam Laboratory, University of Michigan
NSCL National Superconducting Cyclotron Laboratory, Michigan State University
ORNL Oak Ridge National Laboratory Oak Ridge, Tennessee
PBPL Particle Beam Physics Lab (Neptune-Laboratory, PEGASUS - Photoelectron Generated Amplified Spontaneous Radition Source)
SLAC Stanford Linear Accelerator Center, (SLC - SLAC Linear electron positron Collider, SSRL - Stanford Synchrotron Radiation Laboratory)
SNS Spallation Neutron Source, Oak Ridge, Tennessee
SRC Synchrotron Radiation Center, U of Wisconsin - Madison
SURF III Synchrotron Ultraviolet Radiation Facility, National Institute of Standards and Technology (NIST), Gaithersburg, Maryland
TRIUMF Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, BC (Canada)