Corpus ID: 238531791

Reconstruction of multiple Compton scattering events in MeV gamma-rayCompton telescopes using a physics-based probabilistic model

  title={Reconstruction of multiple Compton scattering events in MeV gamma-rayCompton telescopes using a physics-based probabilistic model},
  author={Hiroki Yoneda and Hirokazu Odaka and Yuto Ichinohe and Satoshi Takashima and Tsuguo Aramaki and K. Aoyama and Jonathan Asaadi and Lorenzo Fabris and Yoshiyuki Inoue and G. Karagiorgi and D. Khangulyan and Masato Kimura and Jonathan Leyva and Reshmi Mukherjee and Taichi Nakasone and Kerstin M. Perez and Mayumi Sakurai and William Seligman and Masashi Tanaka and Naomi Tsuji and K. Yorita and Jiancheng Zeng},
Aimed at progress in MeV gamma-ray astronomy which has not yet been well-explored, Compton telescope missions with a variety of detector concepts have been proposed so far. One of the key techniques for these future missions is an event reconstruction algorithm that is able to determine the scattering orders of multiple Compton scattering events and to identify events in which gamma rays escape from the detectors before they deposit all of their energies. We revisit previous event… Expand


Dual MeV gamma-ray and dark matter observatory - GRAMS Project
Abstract GRAMS (Gamma-Ray and AntiMatter Survey) is a novel project that can simultaneously target both astrophysical observations with MeV gamma rays and an indirect dark matter search withExpand
TANGO—New tracking AlGOrithm for gamma-rays
For spectroscopy, polarimetry and imaging purposes a new gamma-ray tracking algorithm has been developed featuring identification of Compton escape events. The rejection of these events results in ...
4-pi Compton imaging with single 3D position-sensitive CdZnTe detector
A 3D CdZnTe detector can provide 3D position information as well as energy information of each individual interaction when a gamma ray is scattered or absorbed in the detector. This unique featureExpand
Event reconstruction in high resolution Compton telescopes
The development of germanium Compton telescopes for nuclear γ -ray astrophysics ( MeV) requires new event reconstruction techniques to accurately determine the initial direction and energy of photonExpand
Gamma-ray tracking for high energy gamma-ray imaging in pixelated CdZnTe
Abstract Sequencing gamma-ray interactions within a detector system is an integral component of Compton imaging. In detectors with poor timing resolution compared to the time interval of successiveExpand
The V-line RT is very useful not only for scanning large objects (in non-destructive industrial evaluation-NDE), for imaging flat natural and cultural heritage objects, but also for a new combined transmission-reflection imaging process using primary radiation. Expand
Super-MeV Compton Imaging and 3D Gamma-Ray Imaging Using Pixelated CdZnTe
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A Space-based All-sky MeV gamma-ray Survey with the Electron Tracking Compton Camera
A sensitive survey of the MeV gamma-ray sky is needed to understand important astrophysical problems such as gamma-ray bursts in the early universe, progenitors of Type Ia supernovae, and the natureExpand
All-sky Medium Energy Gamma-ray Observatory: Exploring the Extreme Multimessenger Universe
The All-sky Medium Energy Gamma-ray Observatory (AMEGO) is a probe class mission concept that will provide essential contributions to multimessenger astrophysics in the late 2020s and beyond. AMEGOExpand
The Compton Spectrometer and Imager
In this Astro2020 APC White Paper, we describe a Small Explorer (SMEX) mission concept called the Compton Spectrometer and Imager. COSI is a Compton telescope that covers the bandpass often referredExpand