Cyclotrons2013 - List of Authors (Muller, U.)

Paper	Title	Page
MOPPT002	Status of the HZB Cyclotron	31
	A. Denker, J. Bundesmann, T. Damerow, T. Fanselow, W. Hahn, G. Heidenreich, D. Hildebrand, U. Hiller, U. Muller, C. Rethfeldt, J. Röhrich HZB, Berlin, Germany D. Cordini, J. Heufelder, R. Stark, A. Weber Charite, Berlin, Germany
	For 15 years, eye tumours are treated in collaboration with the Charité - Universitätsmedizin Berlin. In 2012 we celebrated the 2000th patient. Our cyclotron is again served by 2 different injectors: a 6 MV Van-de-Graaff and a 2 MV tandetron. The tandetron was optimized especially for the requirements of therapy. Its advantages are easier handling, lower service requirements and a shorter injection beam line. Development of the source resulted in safe operation of more than 600 h and extremely stable beam current. The tandetron is in operation for therapy since 2011. The Van-de-Graaff was considered to be a temporary backup. New requests for beams with a very specific time structure occurred, which can be provided only with the Van-de-Graaff-cyclotron beam line. Pulse structures of high variability; from single pulses of 1 ns at a max. repetition rate of 75 kHz to pulse packets with a length up to 100 μs were tested. The latter was used for the production of pulsed neutron radiation for comprehensive testing of dosimeters. Although major breakdowns have a huge impact on the up-time due to the small number of beam time hours, breakdowns over the past years amounted to less than 5%.

Paper

Title

Page

Status of the HZB Cyclotron

31

A. Denker, J. Bundesmann, T. Damerow, T. Fanselow, W. Hahn, G. Heidenreich, D. Hildebrand, U. Hiller, U. Muller, C. Rethfeldt, J. Röhrich
HZB, Berlin, Germany
D. Cordini, J. Heufelder, R. Stark, A. Weber
Charite, Berlin, Germany

For 15 years, eye tumours are treated in collaboration with the Charité - Universitätsmedizin Berlin. In 2012 we celebrated the 2000th patient. Our cyclotron is again served by 2 different injectors: a 6 MV Van-de-Graaff and a 2 MV tandetron. The tandetron was optimized especially for the requirements of therapy. Its advantages are easier handling, lower service requirements and a shorter injection beam line. Development of the source resulted in safe operation of more than 600 h and extremely stable beam current. The tandetron is in operation for therapy since 2011. The Van-de-Graaff was considered to be a temporary backup. New requests for beams with a very specific time structure occurred, which can be provided only with the Van-de-Graaff-cyclotron beam line. Pulse structures of high variability; from single pulses of 1 ns at a max. repetition rate of 75 kHz to pulse packets with a length up to 100 μs were tested. The latter was used for the production of pulsed neutron radiation for comprehensive testing of dosimeters. Although major breakdowns have a huge impact on the up-time due to the small number of beam time hours, breakdowns over the past years amounted to less than 5%.