Chemical-vapor deposited ultra-fast diamond detectors for temporal measurements of ion bunches
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2018-09-01 |
| Journal | Review of Scientific Instruments |
| Authors | D. Jahn, M. TrƤger, M. KiÅ”, C. Brabetz, D. Schumacher |
| Institutions | GSI Helmholtz Centre for Heavy Ion Research, Helmholtz-Zentrum Dresden-Rossendorf |
| Citations | 5 |
Abstract
Section titled āAbstractāThis article reports on the development of thin diamond detectors and their characterization for their application in temporal profile measurements of subnanosecond ion bunches. Two types of diamonds were used: a 20 Ī¼m thin polycrystalline chemical vapor deposited (CVD) diamond and a membrane with a thickness of (5 Ā± 1) Ī¼m etched out of a single crystal (sc) CVD diamond. The combination of a small detector electrode and an impedance matched signal outlet leads to excellent time response properties with a signal pulse resolution (FWHM) of Ļ = (113 Ā± 11) ps. Such a fast diamond detector is a perfect device for the time of flight measurements of MeV ions with bunch durations in the subnanosecond regime. The scCVD diamond membrane detector was successfully implemented within the framework of the laser ion generation handling and transport project, in which ion beams are accelerated via a laser-driven source and shaped with conventional accelerator technology. The detector was used to measure subnanosecond proton bunches with an intensity of 108 protons per bunch.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
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