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doctoral thesis
Signal Processing Methods for Neutron Detection with a Diamond Detector at Cryogenic Temperatures
2024. urn:nbn:hr:179:509286
Cosic, Donny Domagoj
University of Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture
Department of Electronics and Computing

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Cosic, D. D. (2024). Signal Processing Methods for Neutron Detection with a Diamond Detector at Cryogenic Temperatures (Doctoral thesis). Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:179:509286

Cosic, Donny Domagoj. "Signal Processing Methods for Neutron Detection with a Diamond Detector at Cryogenic Temperatures." Doctoral thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2024. https://urn.nsk.hr/urn:nbn:hr:179:509286

Cosic, Donny Domagoj. "Signal Processing Methods for Neutron Detection with a Diamond Detector at Cryogenic Temperatures." Doctoral thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2024. https://urn.nsk.hr/urn:nbn:hr:179:509286

Cosic, D. D. (2024). 'Signal Processing Methods for Neutron Detection with a Diamond Detector at Cryogenic Temperatures', Doctoral thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, accessed 15 November 2024, https://urn.nsk.hr/urn:nbn:hr:179:509286

Cosic DD. Signal Processing Methods for Neutron Detection with a Diamond Detector at Cryogenic Temperatures [Doctoral thesis]. Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture; 2024 [cited 2024 November 15] Available at: https://urn.nsk.hr/urn:nbn:hr:179:509286

D. D. Cosic, "Signal Processing Methods for Neutron Detection with a Diamond Detector at Cryogenic Temperatures", Doctoral thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, Split, 2024. Available at: https://urn.nsk.hr/urn:nbn:hr:179:509286

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Metadata
TitleSignal Processing Methods for Neutron Detection with a Diamond Detector at Cryogenic Temperatures
Title (croatian)Metode obrade signala za detekciju neutrona pomoću dijamantnog detektora na kriogenim temperaturama
AuthorDonny Domagoj Cosic
MentorDinko Begušić (mentor)
MentorTonči Tadić (mentor)
Committee memberJoško Radić (predsjednik povjerenstva)
Committee memberMilko Jakšić (član povjerenstva)
Committee memberMladen Russo (član povjerenstva)
Committee memberMaja Stella (član povjerenstva)
Committee memberMatko Šarić (član povjerenstva)
GranterUniversity of Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture
(Department of Electronics and Computing)
Split
Defense date and country2024-10-24, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Electronics
Universal decimal classification
(UDC)		621.3 - Electrical engineering
Abstract
Next generation of accelerator and fusion research facilities, such as DONES, will require detectors that can operate reliably under extreme conditions, in particular, at cryogenic temperatures and at very high radiation fluences. Diamond based detectors have the potential to satisfy these requirements plus have the added benefit of being intrinsically sensitive to neutron radiation. This work presents a methodology for testing the performance of diamond detectors in such an environment. All components of the signal processing chain were analytically and experimentally examined to produce an optimized apparatus which then was used to systematically evaluate the charge collection efficiency from room temperature down to 46 K. A drastic drop in the charge collection efficiency has been observed at low temperature for H, He, Li, C ions, and neutrons, while less severe for γ-rays. The mechanism behind this observation were investigated and attributed to the density of the generated charge carriers and the generation/evaporation of excitons. Furthermore, a database of current profiles resulting from the interaction of various types of radiation with the diamond detector was built up and benchmarked. From this information pulse shape discrimination algorithms were developed and evaluated. This work contributes to the development of micro loss monitors based on diamond detectors.
Abstract (croatian)
Sljedeća generacija akceleratora i istraživačkih postrojenja za fuziju, poput DONES-a, zahtijevat će detektore koji mogu pouzdano raditi u ekstremnim uvjetima, posebno pri kriogenskim temperaturama i vrlo visokim intenzitetima zračenja. Detektori na bazi dijamanta imaju potencijal zadovoljiti te zahtjeve i imaju dodatnu prednost što su intrinzično osjetljivi na neutronsko zračenje. Ovaj rad predstavlja metodologiju testiranja performanse dijamantnih detektora u takvom okruženju. Svi dijelovi lanca obrade signala analitički i eksperimentalno su ispitani kako bi se proizvela optimizirana aparatura koja je zatim korištena za sistematsku evaluaciju učinkovitosti prikupljanja naboja od sobne temperature do 47 K. Drastičan pad u učinkovitosti prikupljanja naboja uočen je pri niskim temperaturama za H, He, Li, C ione i neutrone, dok je manje izražen za γ-zrake. Mehanizmi iza ove pojave su istražena i povezana s gustoćom generiranih nositelja naboja i generacijom/isparavanjem ekcitona. Nadalje, prikupljena je baza podataka o profilima struje nastale uslijed interakcije različitih vrsta zračenja s dijamantnim detektorom na bazi dijamanta te je napravljena usporedba s osnovnim pokazateljem. Na temelju te informacije, razvijeni su i evaluirani algoritmi za diskriminaciju na bazi oblika impulsa. Ovaj rad doprinosi razvoju monitora mikro-gubitaka temeljenih na dijamantnim detektorima.
Keywords
Keywords (croatian)
Languageenglish
URN:NBNurn:nbn:hr:179:509286
Study programmeTitle: Electrical Engineering and Information Technology
Study programme type: university
Study level: postgraduate
Academic / professional title: doktor/doktorica znanosti, područje tehničkih znanosti, polje elektrotehnika (doktor/doktorica znanosti, područje tehničkih znanosti, polje elektrotehnika)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2024-11-15 13:00:14