Calibration of the ISOLDE acceleration voltage using a high-precision voltage divider and applying collinear fast beam laser spectroscopy

Krieger, A.; Geppert, Ch.; Catherall, R.; Hochschulz, Frank; Krämer, Jörg; Neugart, R.; Rosendahl, S. S.E.; Schipper, J.; Siesling, E.; Weinheimer, C.; Yordanov, Deyan T.; Nörtershäuser, W.

doi:10.1016/j.nima.2010.12.145

Cited by 28 publications

(18 citation statements)

References 42 publications

(55 reference statements)

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“…This novel technique has recently been applied for the first time at an ISOL facility. As was reported at the Poznan conference by Krieger et al [69], deviations of −12 V and +39 V were found from the reading of the high voltage divider for the two ISOLDE 60 kV power supplies. At the Poznan conference, Rudolfo Sanchez reported on the absolute frequency measurement of the 2s → 3s transition in the stable lithium-6 and lithium-7 isotopes [70].…”

Section: Trends and Future Directionssupporting

confidence: 71%

Atomic physics techniques for studying nuclear ground state properties, fundamental interactions and symmetries: status and perspectives

Kluge

2010

Hyperfine Interact

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The international workshop on "Application of Lasers and Storage Devices in Atomic Nuclei Research" held during 2009 in Poznan gave an excellent overview on the latest experimental and theoretical results regarding the investigation of radionuclides by atomic physics techniques and the extraction of ground state properties of exotic nuclei. This publication intends to summarize the progress recently achieved by laser spectroscopy and mass spectrometry as well as by weak interaction studies using atomic physics techniques. Furthermore, it tries to point to some areas requiring urgent improvements and to indicate some routes of future research and challenging opportunities.

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Section: Trends and Future Directionssupporting

confidence: 71%

Atomic physics techniques for studying nuclear ground state properties, fundamental interactions and symmetries: status and perspectives

Kluge

2010

Hyperfine Interact

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“…For voltages of up to 35 kV they provide a long-term stability of < 10 −6 per month as well as negligible temperature and voltage dependencies [149]. The two dividers have served recently to calibrate the ISOLDE facility at CERN [156]. The permanent voltage monitoring with the precision voltage divider and frequent 83m Kr calibration measurements at the monitor spectrometer will provide reliable and stable calibration and monitoring for the retarding potential of the main spectrometer over long periods of time.…”

Section: Overview: Pre-filtering and Precision Scanningmentioning

confidence: 99%

Current Direct Neutrino Mass Experiments

Drexlin

Hannen

Mertens

et al. 2013

Advances in High Energy Physics

286

304

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In this contribution we review the status and perspectives of direct neutrino mass experiments. These experiments investigate the kinematics of β-decays of specific isotopes ( 3 H, 187 Re, 163 Ho) to derive model-independent information on the averaged electron (anti-) neutrino mass, which is formed by the incoherent sum of the neutrino mass eigenstates contributing to the electron neutrino. We first review the kinematics of β-decay and the determination of the neutrino mass, before giving a brief overview of past neutrino mass measurements (SN1987a-ToF studies, Mainz and Troitsk experiments for 3 H, cryo-bolometers for 187 Re). We then describe the Karlsruhe Tritium Neutrino (KATRIN) experiment which is currently under construction at Karlsruhe Institute of Technology. The large-scale setup will use the MAC-E-Filter principle pioneered earlier to push the sensitivity down to a value of 200 meV (90% C.L.). KATRIN faces many technological challenges that have to be resolved with regard to source intensity and stability, as well as precision energy analysis and low background rate close to the kinematic endpoint of tritium β-decay at 18.6 keV. We then review new experimental approaches such as the MARE, ECHO and Project8 experiments, which offer the promise to perform an independent measurement of the neutrino mass in the sub-eV region. This variety of methods and the novel technologies developed in all present and future experiments demonstrate the great potential of direct neutrino mass experiments in providing vital information on the absolute mass scale of neutrinos.

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“…For the KATRIN-experiment these dividers will precisely measure the retarding potential (-18.6 kV) of the spectrometer over five years of measurement time in which the precision of 3 ppm is required for a period of two month [1]. The K35 and K65 were also used to calibrate the acceleration voltage of the ISOLDE facility at CERN [8].…”

Section: Introductionmentioning

confidence: 99%

Next generation KATRIN high precision voltage divider for voltages up to 65kV

et al. 2013

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The KATRIN (KArlsruhe TRItium Neutrino) experiment aims to determine the mass of the electron antineutrino with a sensitivity of 200 meV by precisely measuring the electron spectrum of the tritium beta decay. This will be done by the use of a retarding spectrometer of the MAC-E-Filter type. To achieve the desired sensitivity the stability of the retarding potential of -18.6 kV has to be monitored with a precision of 3 ppm over at least two months. Since this is not feasible with commercial devices, two ppm-class high voltage dividers were developed, following the concept of the standard divider for DC voltages of up to 100 kV of the Physikalisch-Technische Bundesanstalt (PTB). In order to reach such high accuracies different effects have to be considered. The two most important ones are the temperature dependence of resistance and leakage currents, caused by insulators or corona discharges. For the second divider improvements were made concerning the high-precision resistors and the thermal design of the divider. The improved resistors are the result of a cooperation with the manufacturer. The design improvements, the investigation and the selection of the resistors, the built-in ripple probe and the calibrations at PTB will be reported here. The latter demonstrated a stability of about 0.1 ppm/month over a period of two years. * Corresponding author. † present address: Fraunhofer Institute for Microelectronic Circuits and Systems IMS Finkenstrße 61, 47057 Duisburg, Germany arXiv:1309.4955v1 [physics.ins-det] 19 Sep 2013 1 1 ppm = 1 part per million = 10 −6

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Calibration of the ISOLDE acceleration voltage using a high-precision voltage divider and applying collinear fast beam laser spectroscopy

Cited by 28 publications

References 42 publications

Atomic physics techniques for studying nuclear ground state properties, fundamental interactions and symmetries: status and perspectives

Atomic physics techniques for studying nuclear ground state properties, fundamental interactions and symmetries: status and perspectives

Current Direct Neutrino Mass Experiments

Next generation KATRIN high precision voltage divider for voltages up to 65kV

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