Ion Beam Laboratory
Institute of Physics, Bhubaneswar
About the facility
The Ion Beam
laboratory of IOP consists of a NEC model 9SDH-2 tandem pelletron
accelerator that can deliver positive ion beams in the energy range of
1-12MeV. The maximum terminal voltage is 3MV and can be set anywhere
between 0.5-3.0MV as per requirement.
The accelerator is equipped with two negative ion sources Alphatross
and MC-SNICS. Alphatross is exclusively used for producing He-
ions whereas MC-SNICS is used for producing all other types of
negative ions. Commonly used ion beams are that of H, He, Li, C, Si,
Cu, Ag, Au.
55keV negative ions are injected into the accelerator. At the high
voltage terminal, the negative ions lose electrons due to
collisions with Argon gas atoms and are ejected as positive ions with
high energies. The beam currents on target range from a few
nano-Amperes to a few tens of nano-Amperes.
The accelerator facility is being used for studies that require IBA
techniques such as RBS, ion-channeling, PIXE etc. The facility is also
being used for ion-implantation and irradiation studies. Accelerator
Mass Spectrometry of radiocarbon is another important feature of IBL.
Information to users
Beam schedule is
prepared monthly and circulated to the users on 1st of every month.
Alphatross ion-source is used for RBS runs. RBS runs are scheduled if
there are at least 5-6 requests from the users for beam time.
Note to external users
Users interested to perform RBS/PIXE experiments
are expected to be able to setup their own experiment and collect data.
If they cannot, then they may contact any internal user of IOP for help
during their run before booking the beam time.
Availability of accommodation at IOP guest house will restrict the
availability of beam time to the external users. All the external users
are requested to confirm their participation immediately after
receiving the beam schedule for the month. They should also send the
names of the participants along with arrival/departure dates at the
earliest for booking accommodation.