6533b826fe1ef96bd1284685

RESEARCH PRODUCT

High voltage conditioning of the electrostatic deflector of MARA

Jari PartanenJuha UusitaloJuha TuunanenJan SarénU. Johansen

subject

Nuclear and High Energy Physicsta114ta213business.industryChemistryehdollistaminenAnalytical chemistryhallintajärjestelmätHigh voltageAnodelaw.inventionOpticsRecoilhigh voltageconditioninglawElectroderecoil mass separatorNuclear fusionBeam dumpbusinessInstrumentationcontrol systemsSeparator (electricity)Voltage

description

Abstract MARA is a new recoil mass separator in the Accelerator Laboratory of University of Jyvaskyla (JYFL-ACCLAB) with a mass resolving power of 250 and an ion-optical configuration of QQQD E D M . In this paper the construction, control and conditioning of its electrostatic deflector are described. The deflector was designed for voltages up to 500 kV accross the gap, corresponding to a 3.6 MV/m field, to accomodate fusion reactions with inverse kinematics. Titanium electrodes with a beam dump opening in the anode are used. The conditioning procedure, which has been used repeatedly to take the deflector to 450 kV, is described, along with the safety systems and precautions that are in place.

10.1016/j.nimb.2015.11.025http://juuli.fi/Record/0278748616