Institute for Nuclear Research

Tandetron

Category Accelerator
Organizational unit
Person in charge
Üzembentartó Atomki
Application Research, Service, Development
Value high value
Research topics
Abstract

MTA Atomki has installed the new Tandetron accelerator in May 2014 made by High Voltage Engineering Europa BV. In January 2015 a Duoplasmatron ionsource with the injector magnet, then a simple temporary switching magnet was installed. The Tandetron accelerator needs negative ion input and then produces high energy positive ion beam (in this case protons). In the meantime we also installed a 9-port switching magnet directly at the exit of the Tandetron, i.e. to a temporaty position. We can accelerate 200 keV - 4 Mev energy protons with 25 μA beam current.

 

 

 

 

 

 

Description

MTA Atomki has installed the new Tandetron accelerator in May 2014 made by High Voltage Engineering Europa BV. In January 2015 a Duoplasmatron ionsource with the injector magnet, then a simple temporary switching magnet was installed. The Tandetron accelerator needs negative ion input and then produces high energy positive ion beam (in this case protons). The preliminary arrangement immediately allowed to start developing an external beam setup and a target chamber for nuclear astrophysics. The first scientific result made in this target chamber was presented at the European Nuclear Physics Conference EuNPC2015 in Groningen, the Netherlands and it was awarded the "Best poster prize". 

The Tandetron accelerator is in the centre. The duoplasmatron ionsource and injector magnet is on the right. Beamlines under construction are shown on the left. In the meantime we also installed a 9-port switching magnet directly at the exit of the Tandetron, i.e. to a temporaty position.

We plan to develop the present setup with a Multicusp ionsource and a 90-degree analyzing magnet. The Multicusp ionsource cabinet (red box) will contain a +/- 30 degree magnet that allows to select the Hydrogen or the Helium source. The Duoplasmatron ionsource will be upgraded to a Cesium sputtering ionsource, that is capable to produce negative ion beams from most heavy elements. On the high energy side of the Tandetron the 90-degree analyzing magnet will be installed. We will move the switching magnet from the present (temporary) position to the exit of the analyzing magnet. The nanoprobe will be moved to the new position on the right 10-degree line of the switching magnet. The microprobe will be moved to this new Tandetron Laboratory from the old Van de Graaff Laboratory, thus allowing much better quality ion beam (stability, beam size, etc). The new Analytical Endstation will be installed on one of the beamlines. Several other beamlines will be available for present and future users both internal and external. The vacuum system that is necessary for this is shown with red lines.