Improved Fast Neutron Detector Based on Timepix and Plastic Scintillating Converter

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F17%3A00338434" target="_blank" >RIV/68407700:21670/17:00338434 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1109/NSSMIC.2016.8069789" target="_blank" >https://doi.org/10.1109/NSSMIC.2016.8069789</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/NSSMIC.2016.8069789" target="_blank" >10.1109/NSSMIC.2016.8069789</a>

Result language
angličtina
Original language name
Improved Fast Neutron Detector Based on Timepix and Plastic Scintillating Converter
Original language description
The detection of fast neutrons by recoiled protons from a plastic scintillator situated very close to the pixel detector Timepix was introduced. The directional sensitivity of the detection was proven when signal generated by the scintillating light collected by silicon photomultipliers (SiPM) was used for triggering and synchronization of the system. In the proposed contribution the technique refines measuring the analog value of the scintillation light from all segments of an array 4x4 of silicon photomultipliers. Position and energy sensitivity of the silicon pixel detector Timepix is supplemented by position and energy sensitivity of the plastic scintillator. Each of 16 SiPM segments is connected to the independent channel of the spectroscopic ASIC VATA64HDR16. The ASIC provides trigger signal for the system including the pixel detector readout interface FITPix. Variable threshold allows changing the sensitive level and omitting SiPM dark noise or low-energetic particles. Sampled and hold analog value can be readout channel-by-channel through an analog multiplex and converted by an ADC for further digital processing. The whole activity is controlled by a FPGA. The results of measurements with a laboratory radioactive source (AmBe) will be presented.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop, NSS/MIC/RTSD 2016
ISBN
978-1-5090-1642-6
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
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Publisher name
Institute of Electrical and Electronics Engineers, Inc.
Place of publication
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Event location
Steasbourg
Event date
Oct 29, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000432419500411

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