Dr. Thomas Faestermann (IMAGE) Technical University of Munich (TUM) Caption Dr. Thomas Faestermann in the access hatch of the tandem Van de Graaff accelerator on the Garching research campus. Here, more than ten million volts accelerated lithium ions to about 12 percent the speed of light. Faestermann and his team bombarded a lithium-7 target with these lithium-ions. All measurement results indicate that their experiments produced carbon-10 and the sought-after tetra-neutron. Credit Uli Benz / TUM Usage Restrictions Free for reporting on the Technical University of Munich. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.