AGATA-Advanced GAmma Tracking Array
AGATA-Advanced GAmma Tracking Array
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DOI：
10.1016/j.nima.2011.11.081
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发表时间：
2012-03-11
影响因子：
1.4
通讯作者：
Zucchiatti, A.
中科院分区：
文献类型：
--
作者：
Akkoyun, S.;Algora, A.;Zucchiatti, A.
先进伽马跟踪阵列(AGATA)是一个欧洲项目，旨在开发和操作下一代伽马射线能谱仪。Agata基于电分段高纯锗晶体中的伽马射线能量跟踪技术。这项技术需要准确地确定每次相互作用的能量、时间和位置，因为伽马射线将其能量储存在探测器体积内。完全相互作用路径的重建导致了具有非常高的效率和良好的光谱响应的探测器。伽马射线跟踪和AGATA的实现是许多技术进步的结果。其中包括开发组装在三组群探测器低温恒温器中的高度分段的封装式锗探测器、具有快速数字采样的电子系统以及以高速率处理数据的数据采集系统。测量了晶体的完整表征，并与探测器响应模拟进行了比较。这使得能够使用脉冲形状分析算法来提取能量、时间和位置。此外，还开发了事件重建的跟踪算法。AGATA的第一阶段现已完成，并在其第一次物理运动中投入使用。未来，Agata将在欧洲的实验室之间移动，并通过一系列活动来利用不同的光束和可用的设施，以最大限度地提高其科学产出。文件回顾了AGATA项目取得的所有成就，包括操作和支持光谱仪所需的所有基础设施。(C)2011爱思唯尔B.V.保留所有权利。
The Advanced GAmma Tracking Array (AGATA) is a European project to develop and operate the next generation gamma-ray spectrometer. AGATA is based on the technique of gamma-ray energy tracking in electrically segmented high-purity germanium crystals. This 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. Reconstruction of the full interaction path results in a detector with very high efficiency and excellent spectral response. The realisation of gamma-ray tracking and AGATA is a result of many technical advances. These include the development of encapsulated highly segmented germanium detectors assembled in a triple cluster detector cryostat, an electronics system with fast digital sampling and a data acquisition system to process the data at a high rate. The full characterisation of the crystals was measured and compared with detector-response simulations. This enabled pulse-shape analysis algorithms, to extract energy, time and position, to be employed. In addition, tracking algorithms for event reconstruction were developed. The first phase of AGATA is now complete and operational in its first physics campaign. In the future AGATA will be moved between laboratories in Europe and operated in a series of campaigns to take advantage of the different beams and facilities available to maximise its science output. The paper reviews all the achievements made in the AGATA project including all the necessary infrastructure to operate and support the spectrometer. (C) 2011 Elsevier B.V. All rights reserved.