Speaker
Mr
Vasily Kudryavtsev
(BINP, NSU)
Description
Budker Institute of Nuclear Physics has a special installation for
generation of test beams of electrons or photons in a wide range
of energies at the VEPP-4M collider. This facility requires high
resolution low-mass coordinate detectors to precisely determine
particles trajectories.
The specialized detector with high spatial resolution and low material
content was developed. The detector consists of three cascades of
gaseous electron multiplier (GEM), the orthogonal X-Y readout structure and
detector electronics. Electronics is based on the APC128 ASIC (analog
pipeline chip, 128 channels), six of these chips are used covering 768
channels in total. These channels are connected to the readout
structure, which has two layers: 512 vertical strips and 256
horizontal strips, both directions have 0.25 mm pitch of the readout
strips, thus the dimensions of the detector's sensitive area are 128 x
64 millimeters.
During 2016 the first detector prototype was manufactured (GEMs,
flexible readout structures and electronics PCBs made at CERN
Workshop, assembly finalized at the BINP). The spatial resolution of
the prototype detector was measured to be 32 microns. The design of
the detector was adjusted using the feedback taken during manufacture
and operation. In the end of 2019 the new detector was manufactured
with the improved design.
The latest results on the performance of the improved detector will be reported
at the conference.
Summary
The new tracking detector for the test beam facility was manufactured with the improved design. The latest results on the performance of the improved detector will be reported at the conference.
Primary author
Mr
Vasily Kudryavtsev
(BINP, NSU)
Co-authors
Mr
Lev Shekhtman
(Budker Institute of Nuclear Physics)
Mr
Timofei Maltsev
(Budker Institute of Nuclear Physics)
Mr
Viktor Bobrovnikov
(BINP, NSU)
