• Germanium detectors for nuclear spectroscopy AIP Publishing

    multidisciplinary research program in HPGe detector technologies. INTRODUCTION. For highresolution gamma spectroscopy, HighPurity Germanium (HPGe) detectors are still fundamental instruments owing to their highest energy resolution. An HPGe detector is a reversely biased diode, which consists of three important 

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  • Gammaray Spectroscopy An introduction: gamma rays, detectors

    Outline. Basics. Gamma rays, their interactions, and basic properties of a spectrum. GammaRay Detectors. Scintillators, Semiconducter, Gedetectors and modern ones. GammaRay Spectrometer. Just many detectors? Resolving power. SeGA, CAESAR, GAMMASPHERE, GRETA/GRETINA 

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  • Semiconductor detector Wikipedia

    While silicon detectors cannot be thicker than a few millimeters, germanium can have a depleted, sensitive thickness of centimeters, and therefore can be used as a total absorption detector for gamma rays up to few MeV. These detectors are also called highpurity germanium detectors 

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  • Characterization study of a broadenergy germanium detector at CJPL

    with BEGe detectors at China JinPing underground Laboratory (CJPL) in the future. Key words: BEGe, characterization, dead layer, 0νββ, CJPL. 1. Introduction. Broadenergy germanium (BEGe) detectors are competitive candidates for neutrinoless double beta decay (0νββ) experiments using germanium detectors.

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  • Alphaevent characterization for germanium detectors

    Introduction. This thesis presents a detailed study of interactions of alpha particles on the surface of a germanium detector. The work was carried out as a part of an R&D project targeting the development of novel germanium detectors for basic research in experimental physics. One of the main goals of experimental physics 

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  • Germanium Detectors Germanium Detectors International Atomic

    Introduction – Motivation. Since germanium detectors became available in the 1960's, they have taken in a key position in the field of nuclear spectroscopy. These detectors combine excellent energy resolution with good timing resolution in the energy range rel evant for nuclear spectroscopy. The present stateoftheart is 

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  • High purity germanium detector in gammaray spectrometry

    present study was performed to measure the full energy photo peak efficiency of HPGedetector so that a reliable data could possible to measure in gammaray spectrometry experiment. THE SEMICONDUCTOR GE DETECTORS. Germanium semiconductor detectors were first introduced in. 1962 (Tavendale and Ewan, 

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  • Method of Evaluating the effect of HPGe Design on the Sensitivity of

    germanium detectors and compared to our computational model. In particular, we measure the capacitance of the germanium detector as a function Fundamentals of radiation interaction with high purity germanium detectors. 2.1 Introduction. The interaction of a photon with the detector material results in all or part of.

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  • efficiency and resolution of germanium detectors as a Ortec

    EFFICIENCY AND RESOLUTION OF GERMANIUM DETECTORS AS A FUNCTION OF. ENERGY AND INCIDENT GEOMETRY. R.M. Keyser. New Product Development, ORTEC, 801 South Illinois Avenue, Oak Ridge, TN 37831. 1 INTRODUCTION. The use of germanium detectors for the identifiion and quantifiion of 

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  • RADIUM ISOTOPE MEASUREMENTS USING GERMANIUM

    The well detector has an efficiency two to three times greater than the flat Ge(Li) system and thus has a considerably higher sensitivity. Results from ground waters and estuarine waters are presented which demonstrate the usefulness of the germanium detectors in studies of radium in natural waters. 1. Introduction.

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  • Experience from operating germanium detectors in IOPscience

    paper gives an overview of the production chain of the new germanium detectors, the steps taken to minimise the exposure to cosmic radiation during manufacturing, and the first results of characterisation measurements in vacuum cryostats. 1. Introduction. GERDA [1] is an experiment looking for the neutrinoless double 

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  • Calibration of a Germanium Detector UZH PhysikInstitut

    Aug 23, 2012 1 Introduction. The properties of neutrinos as well as the nature of the dark matter are intensely inves tigated in astroparticle physics [1][2]. Many of these experiments are using high purity germanium detectors [3][4][5], which are known for their excellent energy resolution. [6]. To interpret the data it is 

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  • 8. HPGe Detector

    Mar 29, 1999 Radioisotopes and Radiation Methodology. 81. Chapter 8 HyperPure Germanium Detector. 8.1. Introduction. Silicon semiconductor detectors described in the previous chapter have depletion depths less than. 1 mm, which are sufficient for charged particle spectroscopy or soft Xray detection. For photon.

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  • Germanium detectors for nuclear spectroscopy AIP Publishing

    multidisciplinary research program in HPGe detector technologies. INTRODUCTION. For highresolution gamma spectroscopy, HighPurity Germanium (HPGe) detectors are still fundamental instruments owing to their highest energy resolution. An HPGe detector is a reversely biased diode, which consists of three important 

    Read more
  • Gamma and XRay Detection

    Efficiency of one detector relative to another commonly that of a germanium detector relative to a 3 in. diameter specific energy, either expressed in absolute keV (as with Germanium Detectors), or as a percentage of the .. following sections and in the introduction to each Nuclear Instrumentation Modules. (NIM) Section.

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  • Germanium Detectors Germanium Detectors International Atomic

    Introduction – Motivation. Since germanium detectors became available in the 1960's, they have taken in a key position in the field of nuclear spectroscopy. These detectors combine excellent energy resolution with good timing resolution in the energy range rel evant for nuclear spectroscopy. The present stateoftheart is 

    Read more
  • HPGe and clover gamma ray detector maintenance inspirehep

    Introduction. High purity germanium (HPGE) detectors [1] are used for gamma ray spectroscopy. At Inter. University Accelerator Center (IUAC), New. Delhi, both single crystal HPGe detectors and composite detectors like Clovers are used for nuclear structure studies. The germanium detectors have very high resolution 

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  • How Do Germanium Detectors Work? YouTube

    Aug 11, 2017 High purity germanium detector in gamma ray spectrometryfandom powered by wikiahigh (hpge) radiation detectors semiconductor and principles of matter introduction to youtubegamma spectroscopy an rays, efficiency resolution hpge nai(tl) using high five things you need know about detectorscalibration 

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  • RADIUM ISOTOPE MEASUREMENTS USING GERMANIUM

    The well detector has an efficiency two to three times greater than the flat Ge(Li) system and thus has a considerably higher sensitivity. Results from ground waters and estuarine waters are presented which demonstrate the usefulness of the germanium detectors in studies of radium in natural waters. 1. Introduction.

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  • Gamma and XRay Detection Introduction

    produced by the detector to the number of gamma rays striking the detector. c. Relative Efficiency: Efficiency of one detector relative to another commonly that of a germanium detector relative to a 3 in. diameter by 3 in. long NaI crystal, each at 25 cm from a point source, and specified at 1.33 MeV only. d. FullEnergy Peak 

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  • Fabriion Process Development for High Purity Germanium

    Chapter 1 Introduction. Quinn Looker. 2 obtained with germaniumbased detectors. Highpurity germanium material was developed to overcome some of the drawbacks of Ge(Li) detectors, allowing larger detector sizes that are room temperature stable. Today, the demand for HPGe detectors in nuclear physics experiments.

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  • Gamma and XRay Detection Introduction

    produced by the detector to the number of gamma rays striking the detector. c. Relative Efficiency: Efficiency of one detector relative to another commonly that of a germanium detector relative to a 3 in. diameter by 3 in. long NaI crystal, each at 25 cm from a point source, and specified at 1.33 MeV only. d. FullEnergy Peak 

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  • Gammaray imaging with coaxial HPGe detector Semantic Scholar

    May 3, 2005 detectors. In chapter 3, we will introduce the 40fold segmented coaxial HPGe detector, which was built by ORTEC and used for our experiments. In chapter 4 we discuss pulse shape analysis procedures to deduce threedimensional positions for individual gamma ray interactions. Chapter 5 finally 

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  • Germanium Detectors Data Sheet CANBERRA Industries

    Germanium Detectors. INTRODUCTION. Germanium detectors are semiconductor diodes having a pin structure in which the intrinsic (i) region is sensitive to ionizing radiation, particularly x rays and gamma rays. Under reverse bias, an electric field extends across the intrinsic or depleted region. When photons interact 

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  • CEA Saclay DETECSLNHB 91191 GifsurYvette Cedex, France

    Introduction. High purity germanium (HPGe) detectors have been commonly used in gammaray spectrometry for many years. Uptonow, their use in the Xray energy range is less frequent, especially for energies lower than 20 keV, as the germanium dead layer is usually too thick to enable lowenergy photons to reach the 

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  • Germanium detector Article about Germanium detector by The Free

    Find out information about Germanium detector. A particle detector which detects ionization produced by energetic charged particles in the depletion layer of a reversebiased pn junction in a Explanation of Germanium detector. An Li impurity is introduced into a ptype Si crystal. Li ions move through the pregion of the 

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  • Experience from operating germanium detectors in IOPscience

    paper gives an overview of the production chain of the new germanium detectors, the steps taken to minimise the exposure to cosmic radiation during manufacturing, and the first results of characterisation measurements in vacuum cryostats. 1. Introduction. GERDA [1] is an experiment looking for the neutrinoless double 

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  • Modular Planar Germanium (MPGe) Detector Systems for High

    Aug 10, 2016 Modular Planar Germanium (MPGe) Detector. Systems for High Resolution Gammaray. Spectroscopy and Tracking Arrays. DESC0009639. 2/19/20134/14/2017 (1yr NCE). Ethan Hull PI, PHDS Co. A collaboration with C.J. (Kim) Lister at U. Mass Lowell. • PHDS Co. Introduction. • MPGe Concept.

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