KN Van de Graaff Accelerator
The Nuclear Science Laboratory at the University of Notre Dame maintains and operates a model KN accelerator from High Voltage Engineering which was originally located at Queens University in Kingston, Ontario. When funding for this machine at Queens University was discontinued, the machine was donated to our laboratory and was moved to our facility in 1995. The picture to the right shows the KN accelerator during a routine opening. The pressure vessel has been rolled away to allow access to the accelerator. The terminal shell and the equipotential rings are clearly visible. The smaller blue pressure tank which can just be seen in the background is our model JN accelerator.
Machine Parameters
- Terminal voltage up to 4 MV (good transmission between 600kV and 4MV)
- RF-Ion source (hydrogen, helium, nitrogen)
- Beam current up to 150 micro A
- future project ECR ion source
Existing Beam Lines and Equipment
- 0o Beam line for low energy (p,gamma)
and (alpha,gamma) cross section measurements for stellar
H and He burning.
- 30o Beam line for Experiments with either
the BaF2 Sum Crystal, the Superconducting Solenoid
or Gas Target
- 45o Beam line to Ortec Scattering Chamber
for low energy elastic scattering studies and (p,alpha)
and (alpha,p) cross section measurements for stellar H-
and He burning.
- A 3.5 Tesla superconducting solenoid for the separation
of low energy elastically scattered beam particles.
- Recirculating Gas Target for reaction measurements
with heavy ions in inverse kinematics.
- BaF2 Sum Crystal
Proposed Beam Lines and Equipment
- Condensed Matter: PIXE, RBS
- Atomic Physics; under construction
- Injector line to existing Beam line system of the Nuclear Science Laboratory
- Low Energy Beam line for external users (Stony Brook); under construction
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Data Acquisition
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Users and Collaborators
- Michael Haas (Weizmann Institute, Israel)
- Jerry Hinnefeld (IUSB, Indiana)
- Christian
Iliadis (University of North Carolina at Chapel Hill,
South Carolina)
- Franz
Kaeppeler, Michael Heil and Rene Reifarth (Forschungszentrum
Karlsruhe, Germany)
- Michael Paul (Hebrew University, Israel)
- Rick Roberts (Clay High School, South Bend, Indiana)
- Alan Shotter (Edinburgh, Scottland)
- Kent Scheller (UoSI, Indiana)
- Jeff Schweitzer (U.Conn)
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Sponsors
- National Science Foundation
(Operation Grant)
- Queens University, Kingston, Ontario
(KN accelerator donation)
- University of Toronto, Toronto, Canada
(JN accelerator donation)
- University
of Notre Dame (Installation and Equipment Funds)
- Department
of Physics, University of Notre Dame(Installation
and Equipment Funds)
- Department of Electrical Engineering, University of
Notre Dame (Installation and Equipment Funds)
- Indiana University at South Bend
(Installation and Equipment Funds)
- Kansas State University (Gastarget)
- Ohio State University (Gastarget)
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