Abstract:The Advanced GAmma Tracking Array (AGATA), the new generation high-resolution γray spectrometer, has seen the realization of the first phases of its construction and exploitation. A number of nuclear structure studies based on experiments utilizing the principle of γ -ray tracking were carried out in this decade. The combination of highest detection efficiency and position sensitivity allowed very selective spectroscopic studies with stable beams and the use of instable ion beams with the lowest intensities. N… Show more
“…To date AGATA has produced 86 scientific publications (e.g. see [11]) and over 110 technical publications. This clearly demonstrates AGATA's impact but another very important outcome are the training aspects of the project, in particular for young scientists, engineers and technicians.…”
The Advanced GAmma Tracking Array (AGATA) is a European project to develop and operate a high-resolution gamma-ray spectrometer. AGATA is based on the technique of gamma-ray energy tracking in electrically segmented high-purity germanium crystals. The tracking technique requires the accurate determination of the energy, time and position of every interaction as a gamma ray deposits its energy within the detector volume. AGATA can measure gamma rays from 10’s of keV to 10 MeV with excellent efficiency and position resolution and has a very high count rate capability. The realisation of AGATA and gamma-ray tracking is a result of many technical advances. AGATA has operated in a series of successful scientific campaigns at Legnaro National Laboratory in Italy, GSI in Germany and GANIL in France. AGATA is now in its next phase of development as it evolves to the full 4π instrument. It is presently starting its next campaign at Legnaro.
“…To date AGATA has produced 86 scientific publications (e.g. see [11]) and over 110 technical publications. This clearly demonstrates AGATA's impact but another very important outcome are the training aspects of the project, in particular for young scientists, engineers and technicians.…”
The Advanced GAmma Tracking Array (AGATA) is a European project to develop and operate a high-resolution gamma-ray spectrometer. AGATA is based on the technique of gamma-ray energy tracking in electrically segmented high-purity germanium crystals. The tracking technique requires the accurate determination of the energy, time and position of every interaction as a gamma ray deposits its energy within the detector volume. AGATA can measure gamma rays from 10’s of keV to 10 MeV with excellent efficiency and position resolution and has a very high count rate capability. The realisation of AGATA and gamma-ray tracking is a result of many technical advances. AGATA has operated in a series of successful scientific campaigns at Legnaro National Laboratory in Italy, GSI in Germany and GANIL in France. AGATA is now in its next phase of development as it evolves to the full 4π instrument. It is presently starting its next campaign at Legnaro.
“…A degrader of 5.7 mg/cm 2 natural magnesium was positioned at different distances from the target to simulate a RDDS experiment. Examples of such experiments performed with AGATA and magnetic spectrometers can be found in the review of Bracco et al [22]. In this simulation a rectangular parallelepiped is used to simulate the geometrical opening of a magnetic spectrometer.…”
Section: Example 3 -Multi-nucleon Transfer To 62 Fementioning
The design study of the AGATA array began with the development of the AGATA simulation code using GEANT4. The latter played a key part in the final design of the array and provided a cost effective solution for the early development of the tracking algorithm. The code has since been maintained and developed by the collaboration to provide more realistic simulations, with reaction chambers, ancillary detectors and surrounding mechanical structures completing the entire setup.
“…1d and e, it is essential to accurately determine the beam properties to remove other contributions to Δβ and Δα. Bracco et al [21] suggested that to make the most of the position-sensitivity of AGATA for Doppler correction, the beam trajectory should be determined to a precision of 0.3 • , the target position to a precision of 3 mm, and the β for the beam determined, eventby-event, to a precision of better than 0.3%. To achieve this in the PreSPEC campaign, the trajectory and velocity of the fragments were determined to high precision by the LYCCA detectors [16].…”
Section: In-beam Spectroscopy With High-velocity Beamsmentioning
An analysis of the capabilities of AGATA for in-beam $$\gamma $$
γ
-ray spectroscopy at relativistic energies is presented. AGATA’s ability to determine the position of $$\gamma $$
γ
-ray interaction points in the Germanium crystal provides the crucial ingredient for attaining high $$\gamma $$
γ
-ray energy resolution when the emitting nucleus is traveling at more than half the speed of light. This is the typical velocity of exotic nuclei exiting the SuperFRS spectrometer at the future FAIR facility, where AGATA will be deployed as part of the high-resolution in-beam spectroscopy project, HISPEC. A discussion of different experimental techniques using AGATA under these conditions is presented, including analysis of the different Doppler-based methods for lifetime determination. The properties of the key reaction mechanisms expected to be applied for in-beam $$\gamma $$
γ
-ray spectroscopy at FAIR are discussed, along with the aspects of those reactions that can be exploited by the advanced capabilities of the AGATA array.
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