TY - JOUR
T1 - Gamma irradiation testing of prototype ITER in-vessel magnetic pick-up coils
AU - Vermeeren, Ludo
AU - Leysen, Willem
A2 - Massaut, Vincent
N1 - Score = 10
PY - 2013/10
Y1 - 2013/10
N2 - To fulfill the requirements for ITER in-vessel magnetic diagnostics, several coil prototypes have beendeveloped, aiming at minimizing the disturbing effects of temperature gradients and radiation inducedphenomena. As a first step in the radiation resistance testing of these prototypes, an in-situ high doserate gamma radiation test on a selection of prototypes was performed. The aim of this test was to get afirst experimental feedback regarding the behavior of the pick-up coil prototypes under radiation. Fiveprototypes (a coil wound with glass-insulated copper wire, two LTCC coils and two HTCC coils) wereirradiated at a dose rate of 46 kGy/h up to a total dose of 72 MGy and at a temperature of 50◦C. Duringthe irradiation, the continuity resistances and the insulation resistances were continuously measured.Before and after irradiation reference data were recorded as a function of temperature (from 30◦C to130◦C). This paper includes the results of the temperature and irradiation tests and a discussion of thebehavior of the prototype coils in terms of electrical and mechanical properties.
AB - To fulfill the requirements for ITER in-vessel magnetic diagnostics, several coil prototypes have beendeveloped, aiming at minimizing the disturbing effects of temperature gradients and radiation inducedphenomena. As a first step in the radiation resistance testing of these prototypes, an in-situ high doserate gamma radiation test on a selection of prototypes was performed. The aim of this test was to get afirst experimental feedback regarding the behavior of the pick-up coil prototypes under radiation. Fiveprototypes (a coil wound with glass-insulated copper wire, two LTCC coils and two HTCC coils) wereirradiated at a dose rate of 46 kGy/h up to a total dose of 72 MGy and at a temperature of 50◦C. Duringthe irradiation, the continuity resistances and the insulation resistances were continuously measured.Before and after irradiation reference data were recorded as a function of temperature (from 30◦C to130◦C). This paper includes the results of the temperature and irradiation tests and a discussion of thebehavior of the prototype coils in terms of electrical and mechanical properties.
KW - Magnetic diagnostics
KW - coils
KW - gamma irradiation testing
KW - insulation resistance
KW - fusion
KW - ITER
UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_131265
UR - http://knowledgecentre.sckcen.be/so2/bibref/10581
U2 - 10.1016/j.fusengdes.2013.01.027
DO - 10.1016/j.fusengdes.2013.01.027
M3 - Article
SN - 0920-3796
VL - 88
SP - 1161
EP - 1164
JO - fusion engineering and design
JF - fusion engineering and design
IS - 6-8
T2 - 2012 - SOFT
Y2 - 24 September 2012 through 28 September 2012
ER -