The energy-sensitive detection of heavy ions with calorimetric low temperature detectors was investigated in the energy range of E=0.1-1 MeV/amu, commonly used for accelerator mass spectrometry (AMS). The detectors used consist of sapphire absorbers and superconducting aluminum transition edge thermometers operated at T approximately 1.5 K. They were irradiated with various ion beams (13C, 197Au, 238U) provided by the VERA tandem accelerator in Vienna, Austria. The relative energy resolution obtained was DeltaE/E=(5-9) x 10(-3), even for the heaviest ions such as 238U. In addition, no evidence for a pulse height defect was observed. This performance allowed for the first time to apply a calorimetric low temperature detector in an AMS experiment. The aim was to precisely determine the isotope ratio of 236U/238U for several samples of natural uranium, 236U being known as a sensitive monitor for neutron fluxes. Replacing a conventionally used detection system at VERA by the calorimetric detector enabled to substantially reduce background from neighboring isotopes and to increase the detection efficiency. Due to the high sensitivity achieved, a value of 236U/238U=6.1 x 10(-12) could be obtained, representing the smallest 236U/238U ratio measured at the time. In addition, we contributed to establishing an improved material standard of 236U/238U, which can be used as a reference for future AMS measurements.

Accelerator mass spectrometry

10.1063/1.3213622

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Quasi-free scattering with 6,8He beams

Nuclear Physics A (2005)

L.V. Chulkov F. Aksouh A. Bleile O. V. Bochkarev D. Cortina‐Gil

Nuclear Structure

10.1016/j.nuclphysa.2005.05.148

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Citations (55)

Elastic and inelastic scattering of vector polarized 7Li on 58Ni

AIP conference proceedings (1981)

Z. Moroz R. Böttger P. Egelhof K.-H. Möbius G. Tungate

Elastic and inelastic (projectile excitation) scattering of vector polarized 7Li on 58Ni has been investigated at ELi=20.3 MeV. The vector analyzing power for elastic scattering surprisingly turns out to be negative.

Quasielastic scattering

Mott scattering

10.1063/1.32875

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Citations (1)

Polarization monitors for polarized heavy ion beams

Nuclear Instruments and Methods (1979)

P. Żuprański W. Dreves P. Egelhof E. Steffens D. Fick

10.1016/0029-554x(79)90004-1

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Citations (54)

First EXL experiment with radioactive beam: Proton scattering on $^{56}$Ni

M. von Schmid M. Steck Yu. A. Litvinov D. Winters H. Weick

Source

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Future Perspectives for the Application of Low Temperature Detectors in Heavy Ion Physics

AIP conference proceedings (2009)

P. Egelhof S. Kraft Betty Young Blas Cabrera Aaron Miller

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation P. Egelhof, S. Kraft‐Bermuth; Future Perspectives for the Application of Low Temperature Detectors in Heavy Ion Physics. AIP Conference Proceedings 16 December 2009; 1185 (1): 761–766. https://doi.org/10.1063/1.3292450 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAIP Publishing PortfolioAIP Conference Proceedings Search Advanced Search |Citation Search

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10.1063/1.3292450

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Citations (4)

Transfer reactions initiated on 12C by vector polarized 6Li

Physics Letters B (1978)

M. Makowska-Rzeszutko P. Egelhof D. Kassen E. Steffens W. W. Weiß

Orbit (dynamics)

10.1016/0370-2693(78)90549-x

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Citations (14)

Nuclear shape transition in light gold isotopes

Nuclear Physics A (1989)

K. Wallmeroth G. Bollen Asmus Ougaard Dohn P. Egelhof U. Krönert

10.1016/0375-9474(89)90396-5

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Citations (88)

Effects of the Vacuum-Polarization on Sub-Coulomb 12C-12C-Scattering

Weak and Electromagnetic Interactions in Nuclei (1986)

D. Vetterli G. Baur W. B. Li P. Egelhof R. Henneck

For many years QED-effects have been investigated in atomic and particle physics mainly in leptonic systems. Little information only is available on QED-effects in Coulomb-interaction between hadrons.1,2) Experiments performed on the proton-proton system1) yield results which disagree with theoretical predictions by an amount of about 50% of the vacuumpolarization effect.

Vacuum polarization

Exotic atom

10.1007/978-3-642-71689-8_22

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