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High-purity germanium detectors are widely used in rare-event searches due to their excellent energy resolution and extremely high intrinsic (radio)purity. In experiments searching for neutrinoless double beta decay in $^{76}$Ge such as…

Instrumentation and Detectors · Physics 2026-05-14 Alex Biondi , Krzysztof Szczepaniec , Tomasz Mróz , Marcin Misiaszek , Grzegorz Zuzel

The p-type point-contact germanium detectors are novel techniques offering kg-scale radiation sensors with sub-keV sensitivities. They have been used for light Dark Matter WIMPs searches and may have potential applications in neutrino…

Instrumentation and Detectors · Physics 2014-03-14 H. B. Li , the TEXONO Collaboration

A review of tools and methods to calculate electrostatic potentials and fields inside high-purity germanium detectors in various configurations is given. The methods are illustrated concretely with a new educational program named GeFiCa -…

Instrumentation and Detectors · Physics 2020-06-23 Jianchen Li , Jing Liu , Kyler Kooi

The IGEX experiment has been operating enriched germanium detectors in the Canfranc Underground Laboratory (Spain) in a search for the neutrinoless double decay of 76Ge. The implementation of Pulse Shape Discrimination techniques to reduce…

In an ideal germanium detector, fully-absorbed monoenergetic gamma-rays will appear in the measured spectrum as a narrow peak, broadened into a Gaussian of width determined only by the statistical properties of charge cloud generation and…

Instrumentation and Methods for Astrophysics · Physics 2023-08-03 Steven E. Boggs , Sean N. Pike

The publicly accessible dataset includes neutron and gamma-ray pulse signals for conducting pulse shape discrimination experiments. Several traditional and recently proposed pulse shape discrimination algorithms are utilized to evaluate the…

Signal Processing · Electrical Eng. & Systems 2024-04-09 Kaimin Wang , Haoran Liu , Peng Li , Mingzhe Liu , Zhuo Zuo

Pulse-shape discrimination (PSD) in high-purity germanium (HPGe) detectors is central to rare-event searches such as neutrinoless double-beta decay (0vBB), yet conventional approaches compress each waveform into a small set of summary…

High Energy Physics - Experiment · Physics 2026-03-09 Marta Babicz , Saúl Alonso-Monsalve , Alain Fauquex , Laura Baudis

Charge trapping in germanium detectors will inevitably impact their excellent spectral performance. Disordered regions in the germanium crystal structure, either created in the material during processing or induced by radiation exposure,…

Instrumentation and Detectors · Physics 2023-10-03 Steven E. Boggs , Sean N. Pike

Pulse shape analysis of germanium gamma-ray spectrometer signals can yield information on the radial position of individual gamma-ray interactions within the germanium crystal. A parametric pulse shape analysis based on calculation of…

Nuclear Experiment · Physics 2007-05-23 John L. Orrell , Craig E. Aalseth , Matthew W. Cooper , Jeremy D. Kephart , Carolyn E. Seifert

AGATA is a modern $\gamma$-ray spectrometer for in-beam nuclear structure studies, based on $\gamma$-ray tracking. Since more than a decade, it has been operated performing experimental physics campaigns in different international…

Instrumentation and Detectors · Physics 2023-05-31 F. C. L. Crespi , J. Ljungvall , A. Lopez-Martens , C. Michelagnoli

A four-fold segmented n-type point-contact "Broad Energy" high-purity germanium detector, SegBEGe, has been characterised at the Max-Planck-Institut f\"ur Physik in Munich. The main characteristics of the detector are described and first…

Instrumentation and Detectors · Physics 2019-03-27 I. Abt , A. Caldwell , B. Donmez , C. Etrillard , C. Gooch , L. Hauertmann , M. O. Lampert , H. Liao , X. Liu , H. Ma , B. Majorovits , O. Schulz , M. Schuster

Various methods of identification of single events in the HPGe detector are compared on the basis of a program especially designed to simulate pulse shape in a semi-conductor germanium detector. Capabilities of three following methods are…

High Energy Physics - Experiment · Physics 2007-05-23 A. M. Bakalyarov , A. Ya. Balysh , S. T. Belyaev , V. I. Lebedev , S. V. Zhukov

This study utilized the Tempotron, a robust classifier based on a third-generation neural network model, for pulse shape discrimination. By eliminating the need for manual feature extraction, the Tempotron model can process pulse signals…

Signal Processing · Electrical Eng. & Systems 2026-01-01 Haoran Liu , Peng Li , Ming-Zhe Liu , Kai-Ming Wang , Zhuo Zuo , Bing-Qi Liu

Radiation transport models of two high purity germanium detectors, GeII and GeIII, located at the University of Alabama have been created in GEANT4 \cite{geant4}. These detectors have been used extensively for radioassay measurements of…

Instrumentation and Detectors · Physics 2019-04-30 R. H. M. Tsang , A. Piepke , D. J. Auty , B. Cleveland , S. Delaquis , T. Didberidze , R. MacLellan , Y. Meng , O. Nusair , T. Tolba

A pulse shape analysis framework is described, which was developed for n_TOF-Phase3, the third phase in the operation of the n_TOF facility at CERN. The most notable feature of this new framework is the adoption of generic pulse shape…

Precise localisation of gamma-ray interactions is crucial for the performance of the Advanced GAmma Tracking Array (AGATA). The Pulse Shape Analysis (PSA) method used for the position estimation of gamma-ray interactions relies on a…

Instrumentation and Detectors · Physics 2026-02-06 Mojahed Abushawish , Guillaume Baulieu , Jérémie Dudouet , Olivier Stézowski

Point-contact p-type high-purity germanium detectors (PPC HPGe) are particularly suited for detection of sub-keV nuclear recoils from coherent elastic scattering of neutrinos or light dark matter particles. While these particles are…

P-type point contact (PPC) germanium detectors are used in rare event and low-background searches, including neutrinoless double beta (0vbb) decay, low-energy nuclear recoils, and coherent elastic neutrino-nucleus scattering. The detectors…

Instrumentation and Detectors · Physics 2021-12-09 F. Edzards , L. Hauertmann , I. Abt , C. Gooch , B. Lehnert , X. Liu , S. Mertens , D. C. Radford , O. Schulz , M. Willers

Sourceless efficiency calibration of high-purity germanium (HPGe) detectors can provide accurate detector-response information without experiments using radioactive calibration sources, offering advantages in both convenience and safety. In…

Instrumentation and Detectors · Physics 2026-05-26 Kainan Zhang , Shuchang Yan , Zhen Wu , Hui Zhang , Rui Qiu , Junli Li

A new true Gaussian digital shaper of detector pulses is tested and compared to the standard trapezoidal shaper in terms of output count rate, amplitude resolution and biasing the output shaped pulses. The true Gaussian shaper allows for…

Instrumentation and Detectors · Physics 2020-08-26 M. Yu. Kantor , A. V. Sidorov