New Tandem Accelerators for Applied Research in IFIN-HH

Status of the Installation of 3 MV Tandetron

Dan Gabriel GhiţăIFIN-HH

Investment project

• The infrastructure investment was done in the framework of the project 7PM/1/2008 / 29.10.2008 granted by National Authority for Scientific Research [1]

• Director of the project: Dr. Nicolae Victor Zamfir (General Director of IFIN-HH)

The 3 MV Tandetron Accelerator Dedicated to IBA

• Installation began in the middle of 2012

• Manufactured by High Voltage Engineering Europa B.V. - The Netherlands

• Beamline dedicated to IBA• Beamline dedicated to

implantation

The 3 MV Tandetron Accelerator Dedicated to IBA

Negative sputter ion source Model 860A

Duoplasmatron ion source Model 358 with sodium charge exchange

The 3 MV Tandetron Accelerator Dedicated to IBA

“T” Shape – medium current plus – Tandetron accelerator with a maximum voltage on the terminal of 3 MVTitanium spiraled field accelerator tubesGas stripper with stripper canal, stripper gas re-circulating pump and motor-generator setCarbon foil stripping systemMedium-current Cockroft-Walton type HV power supply

The 3 MV Tandetron Accelerator Dedicated to IBA

Ion beam analysis chamber

Ion implantation chamber

Beamline and End-Station for Ion Implantation

• Electrostatic X-Y beam sweep system

• Beam monitoring system with

• Un-cooled carousel• Heatable target holder• Coolable target holder

Beamline and end-station for Ion Beam Analysis

Electrostatic quadrupole lens for µ-beam applicationsBeam profile monitor (BPM)Multi-sample holder 4-axis sample manipulator with . sample holder for multiple samples, . three stepping motor controlled rotations . one stepping motor controlled Y-translationFixed detector holder with ion implanted charged particle detectorCCD cameraLN2 trapManual movable RBS detectorMultiple sample holder for ERDA measurements thatRetractable HPGe Gamma-ray detectorRetractable HPGe X-Ray detector placed inside the reaction chamber and having thin Be window

RO-ICAC 2012

Preliminary results from the acceptance tests

A typical uncalibrated qualitative PIXE spectrum obtained at the interaction of 3 MeV proton beam with a thin solid target. The spectrometer resolution is 160 eV at 5.9 keV. May be clearly seen the X-Ray transitions of the target constituent elements: Mn K and K, Ni K and Cu K and K. From the peak intensity can be determined with great precision the concentrations of elements.

RO-ICAC 2012

Preliminary results from the acceptance tests

RBS raw spectra measured in collision of 3 MeV 4He+ beam with a thin layer of Au on a Si substrate. As can be seen, the measured energy of a backscattered particle easily allows to determine the mass of the target atom. Also the projectiles scattered below the surface lose energy and consequently energy scale yields the depth profile of constituent elements of probe.

IWTA 2012

CONCLUSIONS

• The installation of the 3 MV Tandetron accelerator creates great opportunities for research using IBA techniques in various domains like medicine, archeology, geology, material science, pharmacology, environmental sciences, forensic investigations, nuclear physics and in many other domains.

IWTA 2012

Acknowledgments

• Tandem engineers: Daniel Vasile Moşu, Iani Mitu, Gabriel Dumitru, Bogdan Savu, Iani Mitu, Cătălin Călinescu

• Tandem technical team: Dorin Moisa, Constantin Crăciun, Gheorghe Mihon, Gheorghe Ion, Cristian Florea, Cristian Păun, Ionuț Brînzan, Gigi Naghel, Mihai Badea, Stancu Cojocaru, Viorel Bătrâneanu, Cristian Popescu and Laurențiu Povariu

IWTA 2012

THANK YOU!

1 MV Tandem website:

http://tandem.nipne.ro/~tnd3m/index.html