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Файл:Антарктида (3 сем, мага) / MEPhI_LDB_talk_7_09_2023
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BACCUS instrument configuration
TCD - Timing based Charge Detector:
Plastic scintillation counters with fast
PMT readout. Triggers & identifies
charged particles.
TCD
S3
TRD-II
TRD-II
CD
CHERCAM
SIP
SCD
TRD-II - Transition Radiation Detector:
1600 Gas straw tubes, Xe/CO2 80/20%,
Styrofoam (32 kg/m3) Transition Radiator.
Energy / Lorentz factor measurement
for the relativistic charged particles.
CD - Cherenkov Detector:
Plastic Cherenkov counter.
Triggers relativistic charged particles.
SCD - Silicon Charge Detectors:
Measure particle charge.
CHERCAM - Cherenkov Camera:
Aerogel / PMT readout Ring Imaging
Cherenkov Detector. Measures the high
energy nuclei charge. Resolution ~ 0.2 e.
S3 - Scintillating counter:
Triggers charged/shower particles.
7th September 2023 LDB Astrophysics in Antarctica 31
A new TRD was built at CERN
TRD-II super-module with external protection walls and honeycomb covers
8 layers, 1600 straws, Xe/CO2 80/20 Readout electronics and HV-PS inside!
7th September 2023 LDB Astrophysics in Antarctica 32
TRD beam test at SPS H2 beam line, CERN
TRD-II calibration in the SPS H2 beam line, October 11th 2011
7th September 2023 LDB Astrophysics in Antarctica 33
TRD beam test event display
TRD XY track. LabView readout was used during SPS beam test.
7th September 2023 LDB Astrophysics in Antarctica 34
Calibration of the TRD at CERN SPS beam
Ionisation + TR
Ionisation
Gas: Xe/CO2 80/20% HV = 1600 V
The TRD response versus particle Lorentz factor measured at the SPS test beam.
7th September 2023 LDB Astrophysics in Antarctica 35
TRD Thermal-Vacuum test at CSBF
Successful test ( HV = 1600V, cosmic data is taken during the test )
The Thermal-Vacuum chamber at
CSBF, Texas
4/15/11. TRD in the TVT chamber.
7th September 2023 LDB Astrophysics in Antarctica 36
BACCUS Integration at CSBF in 2013
Integration was finished by Aug. 3rd
Connection test done by Aug. 1st
7th September 2023 LDB Astrophysics in Antarctica 37
BACCUS Hung Test at CSBF
Successfully accomplished on August 2nd, 2013
7th September 2023 LDB Astrophysics in Antarctica 38
The RE19 Collaboration
CREAM was approved by NASA for a LDB mission concept study in 1998, and the balloon payload
development started after completing the successful study in 2000. The CREAM experiment
is being conducted by an international collaboration.
CERN Research Board has accepted the CREAM experiment as a Recognized Experiment,
RE19 on March 3rd 2010 (CERN/DG/RB 2010-411) for 3 years, with a provision for an extension.
Currently the RE19 collaboration unites 50 scientists. On 19/07/2013 Research Board confirmed
that RE-19 has its Recognized Experiment status extended up to the end of 2015. Now extended.
Collaborating institutions are:
The Institute for Physical Science and Technology, University of Maryland; Enrico Fermi Institute;
University of Chicago; Pennsylvania State University; Ohio State University; Northern Kentucky
University; and NASA Goddard Space Flight Center in USA;
The RE19 Collaboration includes several institutions from CERN member states: LPSC,
Grenoble, Centre d'Etude Spatiale des Rayonnements, CNRS, Toulouse, France; Department
of Physics of the University of Pisa; INFN sezione di Pisa; Department of Physics of the University
of Siena; INFN Gruppo Collegato di Siena; Istituto di Fisica dello Spazio Interplanetario and INFN
Torino in Italy.
There are also other international institutions involved: Instituto de Fisica, Universidad Nacional
Autonoma de Mexico, Mexico, Advanced Institute of Science and Technology, South Korea;
Kyungpook National University, SunKyunKwan University, South Korea; and Joint Institute for
Nuclear Research (JINR), Dubna, Russia.
7th September 2023 LDB Astrophysics in Antarctica 39
The CREAM Collaboration
At the beginning (first 2 flights) the CREAM collaboration was even smaller…
7th September 2023 LDB Astrophysics in Antarctica 40
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