First Tests of a Re-accelerated Beam at Heidelberg Ion-Beam Therapy Centre (HIT)

Schömers, Christian; Feldmeier, Eike; Galonska, Michael; Haberer, Thomas; Horn, Julian; Peters, Andreas

doi:10.18429/JACoW-IPAC2017-THPVA083

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RIS citation export for THPVA083: First Tests of a Re-accelerated Beam at Heidelberg Ion-Beam Therapy Centre (HIT)

TY - CONF
AU - Schömers, C.
AU - Feldmeier, E.
AU - Galonska, M.
AU - Haberer, Th.
AU - Horn, J.T.
AU - Peters, A.
ED - Schaa, Volker RW
ED - Arduini, Gianluigi
ED - Pranke, Juliana
ED - Seidel, Mike
ED - Lindroos, Mats
TI - First Tests of a Re-accelerated Beam at Heidelberg Ion-Beam Therapy Centre (HIT)
J2 - Proc. of IPAC2017, Copenhagen, Denmark, 14â19 May, 2017
C1 - Copenhagen, Denmark
T2 - International Particle Accelerator Conference
T3 - 8
LA - english
AB - In the active raster scanning method performed at HIT since 2009, tumors are irradiated slice-by-slice by changing the extraction energy. The synchrotron provides a library of 255 different extraction-energy levels per ion type, according to the aimed penetration depth. So far, a new synchrotron cycle is started for each iso-energy-slice resulting in a non-optimal duty cycle. In order to reduce treatment time and to increase the number of patients treated per day, synchrotron cycles with several extraction flattops on different energy levels are planned. After completing one iso-energy-slice, remaining particles will be reaccelerated to the adjacent level. As a first test a new data supply model generating patterns for power supplies and RF devices with two different extraction flattops has been implemented recently. The properties of the reaccelerated beam are now under detailed examination. The reaccelerated beam was successfully extracted and guided to the experimental area. Ionization chambers along the beam line clearly show two spills on two different extraction flattops. The desired change of beam energy has been verified by range measurements in a water column.
PB - JACoW
CP - Geneva, Switzerland
SP - 4647
EP - 4649
KW - synchrotron
KW - extraction
KW - ion
KW - operation
KW - acceleration
DA - 2017/05
PY - 2017
SN - 978-3-95450-182-3
DO - 10.18429/JACoW-IPAC2017-THPVA083
UR - http://jacow.org/ipac2017/papers/thpva083.pdf
ER -