{"project":{"acronym":"","projectId":91936,"title":"Development of a Drift-bar CZT Calorimeter with Good Energy Resolution for Gamma-ray Spectroscopy","primaryTaxonomyNodes":[{"taxonomyNodeId":10741,"taxonomyRootId":8816,"parentNodeId":10740,"level":3,"code":"TX08.1.1","title":"Detectors and Focal Planes","definition":"Detectors, focal planes and readout integrated circuits provide large-format array technologies that require high quantum efficiency (QE); low noise, high resolution, uniform, and stable response; low power and cost; and high reliability. These technologies include low-noise, high-speed, low-power and radiation hardened readout integrated circuit (ROIC) electronics; superconducting sensors; spectral detectors; polarization-sensitive detectors; radiation-hardened detectors; and micro-Kelvin and sub-Kelvin high sensitivity detectors that cover the spectrum from submillimeter wave (Far-IR) to X-ray.","exampleTechnologies":"Backshort Undergrid bolometer arrays, Mercury Cadmium Telluride and Strained Superlattice Arrays, charge coupled devices, sidecar readout integrated circuits, radiometric calibration and abnormality correction algorithms (e.g. non-uniformity)","hasChildren":false,"hasInteriorContent":true}],"description":"We propose to develop, fabricate and test a three-dimensional, high-energy-resolution, high-efficiency calorimeter for photon energies 0.2 – 10 MeV, based on novel drift (Frisch-grid) bar CdZnTe (CZT) detectors recently developed at Brookhaven National Laboratory (BNL). This calorimeter will have a position resolution of 0.1 – 0.5 mm along each of 3 axes depending on the incident photon energy, energy resolution of ∼1%, and capability of operating in ambient conditions. The drift-bar approach will allow the use of CZT detectors with poorer quality, which can significantly increase the yield of acceptable detectors and consequently reduce the cost. This technology represents a breakthrough, because it promises excellent performance with large area detectors at a reasonable cost. The proposed efforts will combine the strong expertise of the BNL team in CZT detectors with that of the GSFC team in the design of space instrumentation. The immediate application of this technology is in medium-energy gamma-ray telescopes (e.g. ComPair or ASTROGAM), whose high scientific potential has been emphasized by results at lower energies (Swift, NuSTAR) and higher energies (Fermi Large Area Telescope). In particular, the drift-grid CZT detector will enable a medium-energy gamma-ray instrument to: (1) provide incident photon energy measurement with high resolution, including the capability to measure cosmic nuclear lines; and (2) serve as a focal plane detector for Compton-scattered events to determine the direction and polarization of incident photons. ","destinations":[{"lkuCodeId":1547,"code":"OUTSIDE_SOLAR_SYSTEM","description":"Outside the Solar System","lkuCodeTypeId":526,"lkuCodeType":{"codeType":"DESTINATION_TYPE","description":"Destination Type"}}],"startYear":2016,"startMonth":10,"endYear":2019,"endMonth":9,"statusDescription":"Completed","principalInvestigators":[{"contactId":112487,"canUserEdit":false,"firstName":"David","lastName":"Thompson","fullName":"David J Thompson","fullNameInverted":"Thompson, David J","middleInitial":"J","primaryEmail":"djt@milkyway.gsfc.nasa.gov","publicEmail":true,"nacontact":false}],"programDirectors":[{"contactId":332808,"canUserEdit":false,"firstName":"Michael","lastName":"Garcia","fullName":"Michael A Garcia","fullNameInverted":"Garcia, Michael A","middleInitial":"A","publicEmail":false,"nacontact":false}],"programManagers":[{"contactId":123302,"canUserEdit":false,"firstName":"Dominic","lastName":"Benford","fullName":"Dominic J Benford","fullNameInverted":"Benford, Dominic J","middleInitial":"J","primaryEmail":"dominic.j.benford@nasa.gov","publicEmail":true,"nacontact":false}],"coInvestigators":[{"contactId":165739,"canUserEdit":false,"firstName":"Gianluigi","lastName":"De Geronimo","fullName":"Gianluigi De Geronimo","fullNameInverted":"De Geronimo, Gianluigi","primaryEmail":"degeronimo@ieee.org","publicEmail":false,"nacontact":false},{"contactId":8668,"canUserEdit":false,"firstName":"Aleksey","lastName":"Bolotnikov","fullName":"Aleksey E Bolotnikov","fullNameInverted":"Bolotnikov, Aleksey E","middleInitial":"E","primaryEmail":"bolotnik@bnl.gov","publicEmail":false,"nacontact":false},{"contactId":265579,"canUserEdit":false,"firstName":"Keith","lastName":"Jahoda","fullName":"Keith M Jahoda","fullNameInverted":"Jahoda, Keith M","middleInitial":"M","primaryEmail":"keith.m.jahoda@nasa.gov","publicEmail":true,"nacontact":false},{"contactId":231519,"canUserEdit":false,"firstName":"John","lastName":"Krizmanic","fullName":"John F Krizmanic","fullNameInverted":"Krizmanic, John F","middleInitial":"F","primaryEmail":"jfk@cosmicra.gsfc.nasa.gov","publicEmail":true,"nacontact":false},{"contactId":302862,"canUserEdit":false,"firstName":"Makoto","lastName":"Sasaki","fullName":"Makoto Sasaki","fullNameInverted":"Sasaki, Makoto","primaryEmail":"makoto.sasaki@nasa.gov","publicEmail":true,"nacontact":false},{"contactId":10526,"canUserEdit":false,"firstName":"Alexander","lastName":"Moiseev","fullName":"Alexander A Moiseev","fullNameInverted":"Moiseev, Alexander A","middleInitial":"A","primaryEmail":"moiseev@milkyway.gsfc.nasa.gov","publicEmail":true,"nacontact":false},{"contactId":381703,"canUserEdit":false,"firstName":"Ralph","lastName":"James","fullName":"Ralph B James","fullNameInverted":"James, Ralph B","middleInitial":"B","primaryEmail":"rjames@bnl.gov","publicEmail":false,"nacontact":false}],"website":"","libraryItems":[],"transitions":[],"responsibleMd":{"acronym":"SMD","canUserEdit":false,"city":"","external":false,"linkCount":0,"organizationId":4909,"organizationName":"Science Mission Directorate","organizationType":"NASA_Mission_Directorate","naorganization":false,"organizationTypePretty":"NASA Mission Directorate"},"program":{"acronym":"APRA","active":true,"description":"
The Astrophysics Research Program competitively solicits low TRL (1-3) technology development activities of a more general nature through the Astrophysics Research and Analysis (APRA) Program element of ROSES. APRA is intended to support basic research of new technologies and feasibility demonstrations that may enable future science missions. For example, APRA seeks technology development of advanced detectors that may be proposed as instruments for future space flight experiments. APRA also supports suborbital science investigations that typically involve a significant level of technology development.
","parentProgram":{"active":true,"description":"There are four Program elements within the Astrophysics Division that execute technology development activities: Cosmic Origins (COR), Physics of the Cosmos (PCOS), Exoplanet Exploration (EXEP), and the Astrophysics Research Program. Technology efforts in the Division are procured through both directed and competed processes.
The PCOS, COR, and EXEP programs develop and operate the Division’s strategic science missions. Thus, each of these programs conduct strategic technology development activities to enable future missions and to support early phase mission development. Each has a formal Technology Development Plan to guide its technology development activities, and maintains an annual report that documents the status of currently funded activities. Annual assessments identify future technology development needs based on the science goals of each program.
The PCOS, COR, and EXEP Programs conduct competed technology development efforts through a Research Opportunities in Space and Earth Science (ROSES) element known as Strategic Astrophysics Technology (SAT) that specifically targets technology developments that bridge the technology readiness level (TRL) 3-6 gap. SAT developed technologies are essential to enable strategic missions that specifically address the key science goals of the Astrophysics Decadal Survey recommendations. The three SAT elements for PCOS, COR, and EXEP are named Technology Development for Physics of the Cosmos (TPCOS), Technology Development for Cosmic Origins Program (TCOP), and Technology Development for Exo-Planet Missions (TDEM) respectively. In contrast to these competed efforts, each program also conducts directed technology development activities that are carried out as elements of specific strategic science missions during early development phases.
The Astrophysics Research Program competitively solicits low TRL (1-3) technology development activities of a more general nature through the Astrophysics Research and Analysis (APRA) Program element of ROSES. APRA is intended to support basic research of new technologies and feasibility demonstrations that may enable future science missions. For example, APRA seeks technology development of advanced detectors that may be proposed as instruments for future space flight experiments. APRA also supports suborbital science investigations that typically involve a significant level of technology development.
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