1. Home >>
  2. Detector
  3.  >> Germanium Detector Samples

Germanium Detector Samples

Bnl Instrumentation Germanium Sensors

Bnl Instrumentation Germanium Sensors Germanium Detectors. With the highest energy resolution among compound semiconductors, germanium Ge is the material of choice for the detection of high-energy x-ray and gamma rays in photon science and other fields. With a dedicated cleanroom for Ge wafer processing, the Instrumentation Division develops Ge detectors with reasonable depletion ...Germanium Detectors. With the highest energy resolution among compound semiconductors, germanium Ge is the material of choice for the detection of high-energy x-ray and gamma rays in photon science and other fields. With a dedicated cleanroom for Ge wafer processing, the Instrumentation Division develops Ge detectors with reasonable depletion ...Germanium detectors should be used to analyze environmental samples that may contain a complex mixture of radionuclides or unknown components because the resolution offered by germanium detectors is unexcelled in these applications. However, use of germanium detectors may not always be as economical as use of sodium iodide NaIT J detecors.The germanium Ge detector is a counting detector and is the instrument that we will be using to count individual gamma emissions from samples. Gamma emissions are direct indicators of decay events. Since we are only using one detector, we are missing most of the decays because they emit gammas in every direction. We already know going into the

Measurement Of 55fe In Reactor Samples By An Intrinsic

Measurement Of 55fe In Reactor Samples By An Intrinsic Measurement of 55Fe in Reactor Samples by an Intrinsic Germanium Detector JAMES E. MARTIN, JAMES M. HYLKO and JOHN D. JONES School of Public Health, University of Michigan, Ann Arbor, Ml 48109.2092, U.S.A Received 9 June 1987 in retGdfbrm 31 August 1987Measurement of 55Fe in Reactor Samples by an Intrinsic Germanium Detector JAMES E. MARTIN, JAMES M. HYLKO and JOHN D. JONES School of Public Health, University of Michigan, Ann Arbor, Ml 48109.2092, U.S.A Received 9 June 1987 in retGdfbrm 31 August 1987The CANBERRA High-Purity Germanium HPGe Well Detector provides maximum efficiency for small samples because the sample is virtually surrounded by active detector material. The CANBERRA Well detector is fabricated with a blind hole rather than a through hole, leaving at least 15 mm of active detector thickness at the bottom of the well.Mirion offers the widest choice of detector types in the industry. Employing the appropriate technology in both materials and processing techniques, Mirion can offer the optimum detector for a wide range of applications. We use both p-type and n-type germanium and we use diffused, implanted, and barrier contacts to achieve this product variety.

Broadenergy Germanium Detector For Routine And Rapid

Broadenergy Germanium Detector For Routine And Rapid Aug 08, 2016 The analysis of naturally occurring radioactive materials using a broad energy germanium detector is reported, along with a description of the rapid measurement of 226Ra and the determination of 227Ac in environmental samples. The detector calibration procedure, sample preparation, and the necessary correction factors have been described. The detector was foundAug 08, 2016 The analysis of naturally occurring radioactive materials using a broad energy germanium detector is reported, along with a description of the rapid measurement of 226Ra and the determination of 227Ac in environmental samples. The detector calibration procedure, sample preparation, and the necessary correction factors have been described. The detector was foundGermanium detectors are semiconductor diodes having a P-I-N 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 with the material within the depleted volume of aBroad Energy Germanium Detectors BEGe In addition to routine sample counting, there are many applications in which the BEGe Detector really excels. In internal dosimetry the BEGe gives the high resolution and low background need for actinide lung burden analysis and the efficiency and resolution at high energy for whole body counting.

Fabrication Process Development For High Purity

Fabrication Process Development For High Purity Purity Germanium Radiation Detectors with Amorphous Semiconductor Contacts By Quinn Looker A dissertation submitted in partial satisfaction of the ... fabricated from 11 different crystal samples were analyzed for electron barrier height and effective Richardson constant. Most of these detectors were subjected to as many as 10 ...Purity Germanium Radiation Detectors with Amorphous Semiconductor Contacts By Quinn Looker A dissertation submitted in partial satisfaction of the ... fabricated from 11 different crystal samples were analyzed for electron barrier height and effective Richardson constant. Most of these detectors were subjected to as many as 10 ...Jan 01, 2021 Some replicate soil samples, assumed as proficiency test samples, were analyzed on both the High Purity Germanium detector of ARSN and RPI. The statistical performance indicators of z-score, precision, trueness and relative bias were used for the evaluation.This thesis investigates the ability of a high-purity germanium detector to perform post-detonation forensics on the debris from several types of nuclear weapons 24 hours after detonation. The ultimate result of this analysis would be the deployment of this detector on an autonomous robot for sample collection and remote analysis.

Choose The Right Hpge Radiation Detector Types Of Hpge

Choose The Right Hpge Radiation Detector Types Of Hpge Selecting the correct radiation detector for your specific application involves many criteria. Use ORTECs energy range chart as well as the key attribute table to guide you in selecting the right High Purity Germanium Detector HPGe for your specific needs.Selecting the correct radiation detector for your specific application involves many criteria. Use ORTECs energy range chart as well as the key attribute table to guide you in selecting the right High Purity Germanium Detector HPGe for your specific needs.Jan 01, 2009 A measurement was conducted at PSI to prove the feasibility of detecting muonic x-rays from a large sample of depleted uranium several kilograms with a germanium detector. In this paper, the experimental setup and analysis of the measurement itself is presented.HyperPure Germanium Detector Introduction The aim of this experiment is to be familia r with a HyperPure Germ anium HPGe detector used as a -ray spectrometer. The dependence of the energy resolution on the shaping parameter will be investigated. Both energy resolution and efficiency will be explored as a function of -ray energy.

Surface Passivation Of High Purity Germanium Detectors

Surface Passivation Of High Purity Germanium Detectors for germanium detectors have been investigated. The AHSi films are deposited on germanium surfaces using a radio frequency RF magnetron sputtering technique in an environment of argon and hydrogen gas mixture. Sample analysis shows that the hydrogen atoms are well incorporated into the amorphous films and play an essential role infor germanium detectors have been investigated. The AHSi films are deposited on germanium surfaces using a radio frequency RF magnetron sputtering technique in an environment of argon and hydrogen gas mixture. Sample analysis shows that the hydrogen atoms are well incorporated into the amorphous films and play an essential role inhigh purity germanium detector germanium detector nuclear material HPGe detector uranium assay radioisotope sample conditioning uranium analysis nuclear waste Products Details Most importantly the BEGe has a short, fat shape which greatly enhances the efficiency below 1 MeV for typical sampleGermanium Detectors and Position Sensors ISO 9001 Certified. 220 Responsivity A Ge photodiode generates a current across the p-n or p-i-n junction when photons of sufficient energy are ab-sorbed within the active region. The responsivity AmpsWatt is a function of wavelength and detector

Preparation Of Doped Germanium For Far Infrared

Preparation Of Doped Germanium For Far Infrared excellent detectors 2. A detector which used a piece of gallium-doped germanium grown by the pellet- dropping method was found to have a detectivity of 3.1 n cm-cpsl2-W -1 at 104 which is the highest detectivity for any detector of this type measured to date at NRL.excellent detectors 2. A detector which used a piece of gallium-doped germanium grown by the pellet- dropping method was found to have a detectivity of 3.1 n cm-cpsl2-W -1 at 104 which is the highest detectivity for any detector of this type measured to date at NRL.Germanium Detectors . . Germanium Short Form Catalog in PDF Format . J16 Series detectors are high-quality Germanium photodiodes designed for the 800 to 1800nm wavelength range. For applications where temperature stability of response is important near the cutoff, thermoelectrically cooled detectors are available.The Majorana Low-background Broad Energy Germanium Detector at KURF MAL-BEK is a PPC detector operated at the Kimballton Underground Research Facility KURF in Ripplemead, VA. MALBEK was used to test the stability and performance of PPC detec-tors and study sources of background near the detector energy threshold. It was found that

Principle Of Operation Of Hpge Detectors Nuclearpower

Principle Of Operation Of Hpge Detectors Nuclearpower Since thermal excitation results in the detector noise, active cooling is required for some types of semiconductors e.g. germanium. Note that, a 1 cm 3 sample of pure germanium at 20 C contains about 4.2 10 22 atoms, but also contains about 2.5 x 10 13 free electrons and 2.5 xSince thermal excitation results in the detector noise, active cooling is required for some types of semiconductors e.g. germanium. Note that, a 1 cm 3 sample of pure germanium at 20 C contains about 4.2 10 22 atoms, but also contains about 2.5 x 10 13 free electrons and 2.5 xAbstract. High-purity germanium HPGe detectors are widely used for the measurement of low concentrations of radioactivity. For the Super-Kamiokande Gadolinium project, the concentration of radium in Gd 2 SO 4 3cdot 8H 2 O is determined by using HPGe detectors. The amount of the sample is generally limited by the size of the sample space of an HPGe detector.Attenuated total internal reflectance ATR FT-IR microspectroscopy reduces sample preparation time and has simplified the analysis of many difficult samples. FT-IR imaging has become a powerful analytical tool using either a focal plane array or a linear array detector, especially when coupled with a chemometric analysis package.

Germanium Detectors Manual

Germanium Detectors Manual Germanium detectors are semiconductor diodes having a P-I-N 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 with the material within the depleted volume of aGermanium detectors are semiconductor diodes having a P-I-N 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 with the material within the depleted volume of aThe Mirion High-Purity Germanium HPGe Well Detector provides maximum efficiency for small samples because the sample is virtually surrounded by active detector material. The Mirion Well detector is fabricated with a blind hole rather than a through hole, leaving at least 15 mm of active detector thickness at the bottom of the well.The Mirion SAGe Well Detector combines excellent energy resolution at low and high energies with maximum efficiency for small samples. Like Traditional Well Detectors, the SAGe Well is fabricated with a blind hole, leaving at least 20 mm of active detector thickness at the bottom of the well. The counting geometry therefore approaches 4.

Improved Gammaspectroscopy Of Marine Samples Via Low

Improved Gammaspectroscopy Of Marine Samples Via Low Oct 15, 2015 The system used to quantify the samples is known as a Small Anode Germanium SAGe Well detector. The SAGe Well detector is a new design low capacitance germanium sensor with a well-type geometry .The detector is a p-type elongated semi-planar detector type with a re-entrant well in the front face.As with Traditional Well detectors, the active germanium surrounds the well and inserted sample ...Oct 15, 2015 The system used to quantify the samples is known as a Small Anode Germanium SAGe Well detector. The SAGe Well detector is a new design low capacitance germanium sensor with a well-type geometry .The detector is a p-type elongated semi-planar detector type with a re-entrant well in the front face.As with Traditional Well detectors, the active germanium surrounds the well and inserted sample ...The use of germanium detectors for the identification and quantification of radionuclides in unknown and non-standard counting geometries has increased in the recent past with the need to clean up and ... for environmental samples. Modeling programs, such as MCNP, use the physical dimensions of the detector crystal to predict ...Aug 01, 1993 Germanium detector efficiencies for vial geometries are modeled as e k1 minus expminusbhbh, where h is the sample fill-level of the vial and k and b are constants relative to h. The model is tested against experimental data generated with 6 germanium detectors 8.8 to 90 standard ...

Energy And Efficiency Calibrations For High Purity

Energy And Efficiency Calibrations For High Purity germanium detector HPGe model number 30195 ORTEC with relative efficiency of cm30 and a resolution of 1.95 keV FWHM for the 1.33 MeV gamma line of . 60. Co. The detectors dimensions crystal diameter 58.8mm, crystal length 76.3mm, end cap to crystal 3mm, aluminum absorbing layer 1.27mm, inactive germanium layer 0.7mm,germanium detector HPGe model number 30195 ORTEC with relative efficiency of cm30 and a resolution of 1.95 keV FWHM for the 1.33 MeV gamma line of . 60. Co. The detectors dimensions crystal diameter 58.8mm, crystal length 76.3mm, end cap to crystal 3mm, aluminum absorbing layer 1.27mm, inactive germanium layer 0.7mm,Front View of the Assistant The Assistant Compatible with all popular MCAs Accommodates all streamlined cryostats Handles samples from to 3 in diameter High Capacity, up to 200 samples, with 20 mL LSC vials Suitable for well or coaxial Germanium or NaI detectors Table top configuration available for NaI Highly flexible design easy to scale up or down92003 PNNL-20368 Germanium-76 Sample Analysis Richard T Kouzes Mark Engelhard Zihua Zhu April 2011 Pacific Northwest National Laboratory Richland, Washington 99352 Executive Summary The MAJORANA DEMONSTRATOR is a large array of ultra-low background high-purity germanium detectors, enriched in 76Ge, designed to search for zero-neutrino double-beta decay 0.

Performance Of A Small Anode Germanium Well Detector

Performance Of A Small Anode Germanium Well Detector Jun 01, 2015 The performance of Small Anode Germanium SAGe Well detector has been evaluated for a range of sample sizes and geometries counted inside the well, on the end cap or in Marinelli beakers. The SAGe Well is a new type of low capacitance germanium well detector manufactured using small anode technology.Jun 01, 2015 The performance of Small Anode Germanium SAGe Well detector has been evaluated for a range of sample sizes and geometries counted inside the well, on the end cap or in Marinelli beakers. The SAGe Well is a new type of low capacitance germanium well detector manufactured using small anode technology.Germanium HPGe Detector Detector EfficiencyE The detector efficiency in Eq. 1 will potentially have the most effect on MDA. The IEEE-325 definition of relative efficiency Ref. 4 at 1.33 MeV, is not a good indicator of detector sensitivity in most of the sample geometries you want to use.