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|Title:||High voltage capacitors for low background experiments|
|Authors:||O'SHAUGHNESSY C.; ANDREOTTI ERICA; BUDJAS D.; CALDWELL A.; GANGAPSHEV A.; GUSEV K.; HULT Mikael; LUBASHEVSKIY A.; Majorovits B.; SCHOENERT S.; SMOLNIKOV A.|
|Citation:||EUROPEAN PHYSICAL JOURNAL C vol. 73 no. 5 p. 2445 [7 pages]|
|JRC Publication N°:||JRC78246|
|Type:||Articles in Journals|
|Abstract:||The field of low background physics places stringent constraints on all materials used in the assembly of experiments. Often these are in conflict with the constraints placed on the materials by their roles in the experiment. This is especially true for certain electronic components. A high value, high voltage capacitor for use in low background experiments has been developed from specially selected radiopure materials. Materials with low or no radioactive impurities. Electroformed copper foils are separated by polyethylene napthalate (PEN) foils and supported within a PTFE teflon spiral coil tube. The electrical performance as well as radiopurity are scrutinized here. With some minor modifications to tune the performance for the application, this capacitor can be well suited for a variety of applications in low background experiments. Here the use of the capacitor for high voltage (HV) decoupling in the operation of high purity germanium (HPGe) detectors is demonstrated.|
|JRC Institute:||Institute for Reference Materials and Measurements|
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