Browsing by Subject "Gamma-ray Burst Monitor (CGBM)"
Now showing 1 - 2 of 2
Results Per Page
Sort Options
Item The CALorimetric Electron Telescope (CALET): Continuing Operations on the ISS(2020-04-18) Rauch, B.; Cannady, Nicholas; Hams, Thomas; Krizmanic, John F.; Sakai, Kenichi; CALET Collaboration; et alThe CALorimetric Electron Telescope (CALET): Continuing Operations on the ISS1 BRIAN RAUCH, Washington University, St. Louis, FOR THE CALET COLLABORATION — The CALorimetric Electron Telescope (CALET) is a high-energy astroparticle physics experiment on the International Space Station (ISS) developed and operated by Japan in collaboration with researchers in Italy and the US. In extended observations the main calorimeter (CAL) can measure the cosmic-ray electron+positron spectrum up to 20 TeV, gamma rays up to 10 TeV, and nuclei from 1H to 40Zn up to 1,000 TeV. The CAL is comprised of a two-layer scintillator paddle charge detector, a scintillating fiber imaging calorimeter with 3 radiation lengths (RL) of tungsten plates, and a 27 RL deep lead tungstate total absorption calorimeter. There is also the CALET Gamma-ray Burst Monitor (CGBM) subsystem with two hard X-ray monitors (HXM) sensitive to 7-1000 keV photons and a soft gamma-ray monitor (SGM) sensitive to 100 keV20 MeV photons utilizing two LaBr3 (Ce) and one BGO scintillators, respectively. Major CALET results to date include measurements of the electron+positron energy spectrum to ∼5 TeV, the spectra of protons and other nuclei, and gamma-ray observations including LIGO/Virgo counterpart searches. CALET began science operations in mid-October 2015 and is now approved to continue through March 2021 with the possibility that operations may be extended further.Item Gamma-ray burst observations with CALET(2020-04-21) Kawakubo, Yuta; Cannady, Nicholas; Hams, Thomas; Krizmanic, John F.; Sakai, Kenichi; CALET Collaboration; et alGamma-ray burst observations with CALET YUTA KAWAKUBO, Louisiana State University, Baton Rouge, NICHOLAS CANNADY, UMBC/CRESST II/NASA GSFC, CALET COLLABORATION — The CALorimetric Electron Telescope (CALET) is a payload deployed on the International Space Station to observe high energy cosmic rays and gamma rays. CALET consists of the CALorimeter (CAL), which is the primary instrument of CALET, and the CALET Gamma-ray Burst Monitor (CGBM), which aims to observe gamma-ray bursts (GRBs). CALET has been in nominal on-orbit operation since October 2015. As of the end of 2019, CGBM has detected 181 GRBs including 22 short GRBs over four years and three months. Also, we have searched for high energy gamma-rays from GRBs with CAL. In this work, we present CALET results of GRB observation, including the search for electromagnetic counterparts of gravitational wave events.