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@ARTICLE{Shchagin:490397,
author = {Shchagin, Alexander and Kube, G. and Strokov, S. A. and
Lauth, W.},
title = {{S}urface-barrier detector with smoothly tunable thickness
of depleted layer for study of ionization loss and
dechanneling length of negatively charged particles
channeling in a crystal},
journal = {Nuclear instruments $\&$ methods in physics research /
Section A},
volume = {1059},
issn = {0168-9002},
address = {Amsterdam},
publisher = {North-Holland Publ. Co.},
reportid = {PUBDB-2022-07714},
pages = {168930},
year = {2024},
abstract = {A new method for the experimental study of ionization loss
of relativistic negatively charged particles moving in a
crystal in the channeling regime using a semiconductor
surface-barrier detector with smoothly tunable thickness of
the depleted layer is proposed. The thickness of the
depleted layer in a flat semiconductor detector can be
smoothly regulated by the value of the bias voltage applied
to the detector. Therefore, the energy distribution of the
ionization loss of relativistic particles which cross the
detector and move in the channeling regime in the detector
crystal can be measured along the path of the particles by
varying the bias voltage of the detector and the
dechanneling length can be found. Available literature data
on experimental and theoretical researches of the
dechanneling length are reviewed. The significant
disagreement between the experimental and theoretical data
is noted. Comparison of experimental data obtained by the
detector-target with smoothly tunable thickness of the
depleted layer with calculations can help to develop
theoretical description of the dynamics of motion of
negatively charged particles channeling in a crystal. A
better understanding of the dechanneling length properties
can be useful in the production of positrons and other
particles such as neutrons by an electron beam in crystals,
as well as in the development of crystalline undulators, and
in the crystal-based extraction of electron beams from a
synchrotron.},
cin = {MDI},
ddc = {530},
cid = {I:(DE-H253)MDI-20120806},
pnm = {621 - Accelerator Research and Development (POF4-621)},
pid = {G:(DE-HGF)POF4-621},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001135378800001},
doi = {10.1016/j.nima.2023.168930},
url = {https://bib-pubdb1.desy.de/record/490397},
}