Related papers: Development of a 30 cm-cube Electron-Tracking Comp…

A Combined Compton and Coded-aperture Telescope for Medium-energy Gamma-ray Astrophysics

A future mission in medium-energy gamma-ray astrophysics would allow for many scientific advancements, e.g. a possible explanation for the excess positron emission from the Galactic Center, a better understanding of nucleosynthesis and…

Instrumentation and Methods for Astrophysics · Physics 2018-06-20 Michelle Galloway , Andreas Zoglauer , Steven E. Boggs , Mark Amman

Gamma-Ray and AntiMatter Survey(GRAMS) experiment

The Gamma-Ray and AntiMatter Survey (GRAMS) is a next-generation experiment using a Liquid Argon Time Projection Chamber (LArTPC) detector to measure MeV gamma rays and antiparticles. MeV gamma-ray observations are important for…

High Energy Physics - Experiment · Physics 2025-12-18 J. Zeng , T. Aramaki , D. Ames , K. Aoyama , S. Arai , S. Arai , J. Asaadi , A. Bamba , N. Cannady , P. Coppi , G. De Nolfo , M. Errando , L. Fabris , T. Fujiwara , Y. Fukazawa , P. Ghosh , K. Hagino , T. Hakamata , N. Hiroshima , M. Ichihashi , Y. Ichinohe , Y. Inoue , K. Ishikawa , K. Ishiwata , T. Iwata , G. Karagiorgi , T. Kato , H. Kawamura , D. Khangulyan , J. Krizmanic , J. LeyVa , A. Malige , J. G. Mitchell , J. W. Mitchell , R. Mukherjee , R. Nakajima , K. Nakazawa , H. Odaka , K. Okuma , K. Perez , I. Safa , K. Sakai , M. Sasaki , W. Seligman , J. Sensenig , K. Shirahama , T. Shiraishi , S. Smith , Y. Suda , A. Suraj , H. Takahashi , S. Takashima , T. Tamba , M. Tanaka , S. Tandon , R. Tatsumi , J. Tomsick , N. Tsuji , Y. Uchida , Y. Utsumi , S. Watanabe , Y. Yano , K. Yawata , H. Yoneda , K. Yorita , M. Yoshimoto

Revisiting the ARM cut in Compton gamma-ray imaging and its application to the INSPIRE detector

The Compton camera is a gamma-ray imaging device developed in the 1970s. In the 1990s, the COMPTEL detector onboard the CGRO was the first to utilize a Compton camera for MeV all-sky survey observations. Recently, various Compton cameras…

Instrumentation and Methods for Astrophysics · Physics 2025-09-19 J. Kataoka , S. Ogasawara , R. Mori , K. Yamamoto , A. R. Joshi , S. Kojima , K. Sato , K. S. Tanaka , K. Watanabe , M. Yasuda , H. Kobayashi , D. Kobayashi , A. Ohira , Y. Amaki , Y. Arai , K. Tashirio , K. Otsubo , Y. Ozeki , Y. Kawaguchi , D. Yoshimura , H. Yoshida , K. Takahashi , S. Masaki , N. Yamada , K. Oikawa , E. Zamami , K. Miyamoto , T. Chujo , H. Nakanishi , T. Tomura , S. Hayatsu , M. Fukuda , H. Seki , S. Joshima , Y. Yatsu

Study of a small-scale gamma-ray detection system employing Compton scattering with a monolithic CeBr3 crystal and segmented photodetector array

Study of high energy cosmic events in the MeV range requires detector with high efficiency and energy resolution to be constructed. The present setup consisting of scintillator crystals CeBr3 with different thickness, each coupled with 12 x…

Instrumentation and Detectors · Physics 2025-12-10 Veronika Asova , Galin Bistrev , Simeon Ivanov

Compton Imaging of MeV Gamma-Rays with the Liquid Xenon Gamma-Ray Imaging Telescope (LXeGRIT)

The Liquid Xenon Gamma-Ray Imaging Telescope (LXeGRIT) is the first realization of a liquid xenon time projection chamber for Compton imaging of MeV gamma-ray sources in astrophysics. By measuring the energy deposit and the three spatial…

Instrumentation and Detectors · Physics 2008-11-26 E. Aprile , A. Curioni , K. L. Giboni , M. Kobayashi , U. G. Oberlack , S. Zhang

Spectrum and extension of the inverse-Compton emission of the Crab Nebula from a combined Fermi-LAT and H.E.S.S. analysis

The Crab Nebula is a unique laboratory for studying the acceleration of electrons and positrons through their non-thermal radiation. Observations of very-high-energy $\gamma$ rays from the Crab Nebula have provided important constraints for…

High Energy Astrophysical Phenomena · Physics 2024-06-26 F. Aharonian , F. Ait Benkhali , J. Aschersleben , H. Ashkar , M. Backes , A. Baktash , V. Barbosa Martins , R. Batzofin , Y. Becherini , D. Berge , K. Bernlöhr , B. Bi , M. Böttcher , C. Boisson , J. Bolmont , M. de Bony de Lavergne , J. Borowska , F. Bradascio , M. Breuhaus , R. Brose , A. Brown , F. Brun , B. Bruno , T. Bulik , C. Burger-Scheidlin , T. Bylund , S. Caroff , S. Casanova , R. Cecil , J. Celic , M. Cerruti , P. Chambery , T. Chand , S. Chandra , A. Chen , J. Chibueze , O. Chibueze , G. Cotter , P. Cristofari , J. Devin , A. Djannati-Ataï , J. Djuvsland , A. Dmytriiev , S. Einecke , J. -P. Ernenwein , S. Fegan , K. Feijen , M. Filipović , G. Fontaine , M. Füßling , S. Funk , S. Gabici , Y. A. Gallant , G. Giavitto , D. Glawion , J. F. Glicenstein , J. Glombitza , P. Goswami , G. Grolleron , M. -H. Grondin , L. Haerer , J. A. Hinton , W. Hofmann , T. L. Holch , M. Holler , D. Horns , M. Jamrozy , F. Jankowsky , V. Joshi , E. Kasai , K. Katarzyński , R. Khatoon , B. Khélifi , W. Kluźniak , Nu. Komin , K. Kosack , D. Kostunin , A. Kundu , R. G. Lang , S. Le Stum , F. Leitl , A. Lemière , M. Lemoine-Goumard , J. -P. Lenain , F. Leuschner , A. Luashvili , J. Mackey , D. Malyshev , D. Malyshev , V. Marandon , P. Marinos , G. Martí-Devesa , R. Marx , A. Mehta , M. Meyer , A. Mitchell , R. Moderski , L. Mohrmann , A. Montanari , E. Moulin , T. Murach , M. de Naurois , J. Niemiec , P. O'Brien , S. Ohm , L. Olivera-Nieto , E. de Ona Wilhelmi , M. Ostrowski , S. Panny , M. Panter , R. D. Parsons , G. Peron , D. A. Prokhorov , G. Pühlhofer , M. Punch , A. Quirrenbach , M. Regeard , P. Reichherzer , A. Reimer , O. Reimer , H. Ren , M. Renaud , B. Reville , F. Rieger , G. Roellinghoff , B. Rudak , V. Sahakian , H. Salzmann , M. Sasaki , F. Schüssler , H. M. Schutte , J. N. S. Shapopi , A. Specovius , S. Spencer , Ł. Stawarz , R. Steenkamp , S. Steinmassl , C. Steppa , K. Streil , I. Sushch , H. Suzuki , T. Takahashi , T. Tanaka , R. Terrier , M. Tluczykont , N. Tsuji , T. Unbehaun , C. van Eldik , M. Vecchi , J. Veh , C. Venter , J. Vink , T. Wach , S. J. Wagner , A. Wierzcholska , M. Zacharias , D. Zargaryan , A. A. Zdziarski , A. Zech , S. Zouari , N. Żywucka , A. Harding

Development of a Compton imager based on bars of scintillator

We have developed a compact Compton gamma-ray imager with a large field of view and a low channel-count that is capable of quickly localizing gamma-ray sources in the few hundred keV - several MeV range. The two detector planes (scatter and…

Instrumentation and Detectors · Physics 2015-06-18 A. M. L. MacLeod , P. J. Boyle , D. S. Hanna , P. R. B. Saull , L. E. Sinclair , H. C. J. Seywerd

The observation of the Crab Nebula with LHAASO-KM2A for the performance study

As a sub-array of the Large High Altitude Air Shower Observatory (LHAASO), KM2A is mainly designed to cover a large fraction of the northern sky to hunt for gamma-ray sources at energies above 10 TeV. Even though the detector construction…

High Energy Astrophysical Phenomena · Physics 2021-02-09 F. Aharonian , Q. An , Axikegu , L. X. Bai , Y. X. Bai , Y. W. Bao , D. Bastieri , X. J. Bi , Y. J. Bi , H. Cai , J. T. Cai , Z. Cao , Z. Cao , J. Chang , J. F. Chang , X. C. Chang , B. M. Chen , J. Chen , L. Chen , L. Chen , L. Chen , M. J. Chen , M. L. Chen , Q. H. Chen , S. H. Chen , S. Z. Chen , T. L. Chen , X. L. Chen , Y. Chen , N. Cheng , Y. D. Cheng , S. W. Cui , X. H. Cui , Y. D. Cui , B. Z. Dai , H. L. Dai , Z. G. Dai , Danzengluobu , D. della Volpe , B. D'Ettorre Piazzoli , X. J. Dong , J. H. Fan , Y. Z. Fan , Z. X. Fan , J. Fang , K. Fang , C. F. Feng , L. Feng , S. H. Feng , Y. L. Feng , B. Gao , C. D. Gao , Q. Gao , W. Gao , M. M. Ge , L. S. Geng , G. H. Gong , Q. B. Gou , M. H. Gu , J. G. Guo , X. L. Guo , Y. Q. Guo , Y. Y. Guo , Y. A. Han , H. H. He , H. N. He , J. C. He , S. L. He , X. B. He , Y. He , M. Heller , Y. K. Hor , C. Hou , X. Hou , H. B. Hu , S. Hu , S. C. Hu , X. J. Hu , D. H. Huang , Q. L. Huang , W. H. Huang , X. T. Huang , Z. C. Huang , F. Ji , X. L. Ji , H. Y. Jia , K. Jiang , Z. J. Jiang , C. Jin , D. Kuleshov , K. Levochkin , B. B. Li , C. Li , C. Li , F. Li , H. B. Li , H. C. Li , H. Y. Li , J. Li , K. Li , W. L. Li , X. Li , X. Li , X. R. Li , Y. Li , Y. Z. Li , Z. Li , Z. Li , E. W. Liang , Y. F. Liang , S. J. Lin , B. Liu , C. Liu , D. Liu , H. Liu , H. D. Liu , J. Liu , J. L. Liu , J. S. Liu , J. Y. Liu , M. Y. Liu , R. Y. Liu , S. M. Liu , W. Liu , Y. N. Liu , Z. X. Liu , W. J. Long , R. Lu , H. K. Lv , B. Q. Ma , L. L. Ma , X. H. Ma , J. R. Mao , A. Masood , W. Mitthumsiri , T. Montaruli , Y. C. Nan , B. Y. Pang , P. Pattarakijwanich , Z. Y. Pei , M. Y. Qi , D. Ruffolo , V. Rulev , A. Sáiz , L. Shao , O. Shchegolev , X. D. Sheng , J. R. Shi , H. C. Song , Yu. V. Stenkin , V. Stepanov , Q. N. Sun , X. N. Sun , Z. B. Sun , P. H. T. Tam , Z. B. Tang , W. W. Tian , B. D. Wang , C. Wang , H. Wang , H. G. Wang , J. C. Wang , J. S. Wang , L. P. Wang , L. Y. Wang , R. N. Wang , W. Wang , W. Wang , X. G. Wang , X. J. Wang , X. Y. Wang , Y. D. Wang , Y. J. Wang , Y. P. Wang , Z. Wang , Z. Wang , Z. H. Wang , Z. X. Wang , D. M. Wei , J. J. Wei , Y. J. Wei , T. Wen , C. Y. Wu , H. R. Wu , S. Wu , W. X. Wu , X. F. Wu , S. Q. Xi , J. Xia , J. J. Xia , G. M. Xiang , G. Xiao , H. B. Xiao , G. G. Xin , Y. L. Xin , Y. Xing , D. L. Xu , R. X. Xu , L. Xue , D. H. Yan , C. W. Yang , F. F. Yang , J. Y. Yang , L. L. Yang , M. J. Yang , R. Z. Yang , S. B. Yang , Y. H. Yao , Z. G. Yao , Y. M. Ye , L. Q. Yin , N. Yin , X. H. You , Z. Y. You , Y. H. Yu , Q. Yuan , H. D. Zeng , T. X. Zeng , W. Zeng , Z. K. Zeng , M. Zha , X. X. Zhai , B. B. Zhang , H. M. Zhang , H. Y. Zhang , J. L. Zhang , J. W. Zhang , L. Zhang , L. Zhang , L. X. Zhang , P. F. Zhang , P. P. Zhang , R. Zhang , S. R. Zhang , S. S. Zhang , X. Zhang , X. P. Zhang , Y. Zhang , Y. Zhang , Y. F. Zhang , Y. L. Zhang , B. Zhao , J. Zhao , L. Zhao , L. Z. Zhao , S. P. Zhao , F. Zheng , Y. Zheng , B. Zhou , H. Zhou , J. N. Zhou , P. Zhou , R. Zhou , X. X. Zhou , C. G. Zhu , F. R. Zhu , H. Zhu , K. J. Zhu , X. Zuo

The TACTIC atmospheric Cherenkov Imaging telescope

The TACTIC $\gamma$-ray telescope, equipped with a light collector of area $\sim$9.5m$^2$ and a medium resolution imaging camera of 349-pixels, has been in operation at Mt.Abu, India since 2001. This paper describes the main features of its…

Astrophysics · Physics 2008-11-26 R. Koul , A. K. Tickoo , S. K. Kaul , S. R. Kaul , N. Kumar , K. K. Yadav , N. Bhatt , K. Venugopal , H. C. Goyal , M. Kothari , P. Chandra , R. C. Rannot , V. K. Dhar , M. K. Koul , R. K. Kaul , S. Kotwal , K. Chanchalani , S. Thoudam , N. Chouhan , M. Sharma , S. Bhattacharyya , S. Sahayanathan

Spectrum of TeV Gamma-Rays from the Crab Nebula

The Crab Nebula has become established as the standard candle for TeV gamma-ray astronomy using the atmospheric Cherenkov technique. No evidence for variability has been seen. The spectrum of gamma rays from the Crab Nebula has been…

Astrophysics · Physics 2007-05-23 D. A. Carter-Lewis , S. Biller , P. J. Boyle , J. H. Buckley , A. Burdett , J. Bussons Gordo , M. A. Catanese , M. F. Cawley , D. J. Fegan , J. P. Finley , J. A. Gaidos , A. M. Hillas , F. Krennrich , R. C. Lamb , R. W. Lessard , C. Masterson , J. E. McEnery , G. Mohanty , J. Quinn , A. J. Rodgers , H. J. Rose , F. W. Samuelson , G. H. Sembroski , R. Srinivasan , T. C. Weekes , M. West , J. A. Zweerink

The MEGA Advanced Compton Telescope Project

The goal of the Medium Energy Gamma-ray Astronomy (MEGA) telescope is to improve sensitivity at medium gamma-ray energies (0.4-50 MeV) by at least an order of magnitude over that of COMPTEL. This will be achieved with a new compact design…

Astrophysics · Physics 2019-08-14 P. F. Bloser , R. Andritschke , G. Kanbach , V. Schoenfelder , F. Schopper , A. Zoglauer

MeV Gamma-Ray Imaging Detector with micro-TPC

We propose a new imaging gamma-ray detector in the MeV region. By measuring the directions and energies of not only a scattered gamma ray but also a recoil electron, the direction of an incident gamma ray would be essentially reconstructed…

Astrophysics · Physics 2009-11-10 Toru Tanimori , Hidetoshi Kubo , Kentaro Miuchi , Tsutomu Nagayoshi , Reiko Orito , Atsushi Takada , Atsushi Takeda , Masaru Ueno

The Crab Nebula as a standard candle in very high-energy astrophysics

The continuum high-energy gamma-ray emission between 1 GeV and 100 TeV from the Crab Nebula has been measured for the first time in overlapping energy bands by the Fermi large-area telescope (Fermi/LAT) below ~ 100 GeV and by ground-based…

High Energy Astrophysical Phenomena · Physics 2014-10-08 M. Meyer , D. Horns , H. -S. Zechlin

COMPTEL gamma-ray study of the Crab nebula

We report on a study of the gamma-ray continuum emission from the Crab supernova nebula and on a search for nuclear de-excitation gamma-ray lines. Crab is the brightest continuum source in the 1-10 MeV gamma-ray sky, and its continuum…

Astrophysics · Physics 2007-05-23 R. D. van der Meulen , H. Bloemen , K. Bennett , W. Hermsen , L. Kuiper , R. P. Much , J. Ryan , V. Sch"onfelder , A. Strong

Low-Energy Electron-Track Imaging for a Liquid Argon Time-Projection-Chamber Telescope Concept using Probabilistic Deep Learning

The GammaTPC is an MeV-scale single-phase liquid argon time-projection-chamber gamma-ray telescope concept with a novel dual-scale pixel-based charge-readout system. It promises to enable a significant improvement in sensitivity to…

Instrumentation and Methods for Astrophysics · Physics 2023-01-25 M. Buuck , A. Mishra , E. Charles , N. Di Lalla , O. Hitchcock , M. E. Monzani , N. Omodei , T. Shutt

Detection of UHE gamma rays from the Crab Nebula: Physical Implications

The Crab Nebula is an extreme particle accelerator boosting the energy of electrons up to a few PeV ($10^{15} \ \rm eV$), close to the maximum energy allowed by theory. The physical conditions in the acceleration site and the nature of the…

High Energy Astrophysical Phenomena · Physics 2020-01-08 Dmitry Khangulyan , Masanori Arakawa , Felix Aharonian

Compton telescope with coded aperture mask: Imaging with the INTEGRAL/IBIS Compton mode

Compton telescopes provide a good sensitivity over a wide field of view in the difficult energy range running from a few hundred keV to several MeV. Their angular resolution is, however, poor and strongly energy dependent. We present a…

Astrophysics · Physics 2007-11-29 M. Forot , P. Laurent , F. Lebrun , O. Limousin

Development of a Si/CdTe semiconductor Compton telescope

We are developing a Compton telescope based on high resolution Si and CdTe imaging devices in order to obtain a high sensitivity astrophysical observation in sub-MeV gamma-ray region. In this paper, recent results from the prototype Si/CdTe…

Astrophysics · Physics 2009-11-10 Takaaki Tanaka , Takefumi Mitani , Shin Watanabe , Kazuhiro Nakazawa , Kousuke Oonuki , Goro Sato , Tadayuki Takahashi , Ken'ichi Tamura , Hiroyasu Tajima , Hidehito Nakamura , Masaharu Nomachi , Tatsuya Nakamoto , Yasushi Fukazawa

COSI: From Calibrations and Observations to All-sky Images

The soft MeV gamma-ray sky, from a few hundred keV up to several MeV, is one of the least explored regions of the electromagnetic spectrum. The most promising technology to access this energy range is a telescope that uses Compton…

Instrumentation and Methods for Astrophysics · Physics 2021-03-01 Andreas Zoglauer , Thomas Siegert , Alexander Lowell , Brent Mochizuki , Carolyn Kierans , Clio Sleator , Dieter H. Hartmann , Hadar Lazar , Hannah Gulick , Jacqueline Beechert , Jarred M. Roberts , John A. Tomsick , Mark D. Leising , Nicholas Pellegrini , Steven E. Boggs , Terri J. Brandt

Observation and Spectral Measurements of the Crab Nebula with Milagro

The Crab Nebula was detected with the Milagro experiment at a statistical significance of 17 standard deviations over the lifetime of the experiment. The experiment was sensitive to approximately 100 GeV - 100 TeV gamma ray air showers by…

High Energy Astrophysical Phenomena · Physics 2015-05-30 A. A. Abdo , B. T. Allen , T. Aune , W. Benbow , D. Berley , C. Chen , G. E. Christopher , T. DeYoung , B. L. Dingus , R. W. Ellsworth , A. Falcone , L. Fleysher , R. Fleysher , M. M. Gonzalez , J. A. Goodman , J. B. Gordo , E. Hays , C. M. Hoffman , P. H. Huentemeyer , B. E. Kolterman , J. T. Linnemann , J. E. McEnery , T. Morgan , A. I. Mincer , P. Nemethy , J. Pretz , J. M. Ryan , P. M. Saz Parkinson , A. Shoup , G. Sinnis , A. J. Smith , V. Vasileiou , G. P. Walker , D. A. Williams , and G. B. Yodh