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A5 DIAMOND SPECTROMETER
The Heavy-Ion Spectroscope
The A5 Diamond Spectrometer is designed for high-precision spectroscopy of heavy ions. It is used for research in radiochemistry, nuclear medicine and heavy ion physics. Energy straggling of the heavy ions is kept to a minimum by the dedicated technology. The Diamond Spectrometer is a robust spectroscopy tool which can be used in hot environments as well as in vacuum applications.

The A5 Diamond Spectrometer consists of a B3 Spectroscopic Diamond Detector, a Cx-L Spectroscopic Amplifier, a ROSY® real-time readout system with integrated power supply for amplifier power and detector bias. Cables and connectors of 1 m length are included. The web-based GUI provides real-time particle spectra and rates for monitoring purposes. An API is provided for the integration in the local control system.
The A5 is remotely controlled. ROSY® provides real-time heavy-ion identification.
FEATURES
Detector type:
B3 Spectroscopic Diamond Detector
Measurement aperture:
10 mm2
Dynamic range:
20 MeV deposited energy in the sensor
Spectrocopic Amplifier:
180 ns FWHM Gaussian signal
Energy resolution:
20 keV FWHM
ADDITIONAL PRODUCT INFORMATION
The very low noise level of the included Cx Spectroscopic Shaping Amplifier allows very small trigger levels. This makes it feasible to record the full Landau distribution of Minimum Ionizing Particles (MIP) with excellent signal to noise separation.

The presented measurement in the Figure was performed with the A5 Diamond Spectrometer and the ROSY® Spectroscopy Application at the CERN Proton Synchrotron (PS) Accelerator in a Telescope experimental setup. The Landau distribution is well separated from the electronic noise.
The deposited energy spectrum by α-particles from 241Am, recorded with the A5 Diamond Spectrometer is shown in the Figure. The measurement was performed with an unsealed source under vacuum.

The excellent energy resolution of the system allows resolving the contribution of all four α-particle energies, which are separated by only 40 keV.

Reference: Divya et al., NIMA 1080, 170664, 2025.
DOWNLOAD THE PRODUCT INFORMATION
A5 Diamond Spectrometer

RELEVANT PROJECTS
Spectroscopy at CERN
The Diamond Spectrometer was developed for the n_TOF facility at CERN for the spectroscopy of nuclear reaction products.
https://cern.ch/ntof
RELEVANT PUBLICATIONS
High-precision alpha spectroscopy using sCVD diamond detectors
Divya, et al., NIMA, 1080, 170664, 2025

DOI:10.1016/j.nima.2025.170664

High-Precision Alpha Spectroscopy with Diamond Detectors
G. Senft, Bachelor Thesis TU Wien, 2017

The (n,α) Reaction in the s-Process Branching Point 59Ni
C. Weiss, et al., Nuclear Data Sheets, 120, 208-210, 2014

DOI:10.1016/j.nds.2014.07.048

A new CVD Diamond Mosaic-Detector for (n,α) Cross-Section Measurements at the n_TOF Experiment at CERN
C. Weiss, et al., NIMA, 732, 190-194, 2013

DOI:10.1016/j.nima.2013.07.040

High-Resolution Energy and Intensity Measurements with CVD Diamond at REX-ISOLDE
E. Griesmayer, et al., CERN-BE-Note-2009-028, 2009