A methodology for the discrimination of alpha particles from other ions in laser-driven proton-boron reactions using CR-39 detectors coupled in a Thomson parabola spectrometer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F23%3A00571625" target="_blank" >RIV/61389021:_____/23:00571625 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/23:00571625 RIV/68407700:21340/23:00366273 RIV/CZ______:_____/23:N0000035

Výsledek na webu

<a href="https://hdl.handle.net/11104/0346589" target="_blank" >https://hdl.handle.net/11104/0346589</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1155/2023/3125787" target="_blank" >10.1155/2023/3125787</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A methodology for the discrimination of alpha particles from other ions in laser-driven proton-boron reactions using CR-39 detectors coupled in a Thomson parabola spectrometer

Popis výsledku v původním jazyce

Solid-state nuclear track detectors (CR-39 type) are frequently used for the detection of ions accelerated by laser-plasma interaction because they are sensitive to each single particle. To the present day, CR-39 detectors are the main diagnostics in experiments focused on laser-driven proton-boron (p11B) fusion reactions to detect alpha particles, which are the main products of such a nuclear reaction, and to reconstruct their energy distribution. However, the acceleration of multispecies ions in the laser-generated plasma makes this spectroscopic method complex and often does not allow to unambiguously discriminate the alpha particles generated from p11B fusion events from the laser-driven ions. In this experimental work, performed at the PALS laser facility (600 J, 300 ps, laser intensity 1016W/cm2), CR-39 detectors were used as main detectors for the angular distribution of the produced alpha particles during a p11B fusion dedicated experimental campaign. Additionally, a CR-39 detector was set inside a Tomson Parabola (TP) spectrometer with the aim to calibrate the CR-39 response for low energetic laser-driven ions originating from the plasma in the given experimental conditions. Te detected ion energies were ranging from hundreds of keV to a few MeV, and the ion track diameters were measured for etching times up to 9 hours. Te goal of the test was the evaluation of the detectors’ ability to discriminate the alpha particles from the aforementioned ions. Within this study, the calibration curves for protons and silicon low energy ions are accomplished, the overlapping of the proton tracks and alpha particles is verifed, and a methodology to avoid this problem is realized.

Název v anglickém jazyce

A methodology for the discrimination of alpha particles from other ions in laser-driven proton-boron reactions using CR-39 detectors coupled in a Thomson parabola spectrometer

Popis výsledku anglicky

Solid-state nuclear track detectors (CR-39 type) are frequently used for the detection of ions accelerated by laser-plasma interaction because they are sensitive to each single particle. To the present day, CR-39 detectors are the main diagnostics in experiments focused on laser-driven proton-boron (p11B) fusion reactions to detect alpha particles, which are the main products of such a nuclear reaction, and to reconstruct their energy distribution. However, the acceleration of multispecies ions in the laser-generated plasma makes this spectroscopic method complex and often does not allow to unambiguously discriminate the alpha particles generated from p11B fusion events from the laser-driven ions. In this experimental work, performed at the PALS laser facility (600 J, 300 ps, laser intensity 1016W/cm2), CR-39 detectors were used as main detectors for the angular distribution of the produced alpha particles during a p11B fusion dedicated experimental campaign. Additionally, a CR-39 detector was set inside a Tomson Parabola (TP) spectrometer with the aim to calibrate the CR-39 response for low energetic laser-driven ions originating from the plasma in the given experimental conditions. Te detected ion energies were ranging from hundreds of keV to a few MeV, and the ion track diameters were measured for etching times up to 9 hours. Te goal of the test was the evaluation of the detectors’ ability to discriminate the alpha particles from the aforementioned ions. Within this study, the calibration curves for protons and silicon low energy ions are accomplished, the overlapping of the proton tracks and alpha particles is verifed, and a methodology to avoid this problem is realized.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Laser and Particle Beams

ISSN

0263-0346

e-ISSN

1469-803X

Svazek periodika

2023

Číslo periodika v rámci svazku

Feb.

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

3125787

Kód UT WoS článku

000947110200001

EID výsledku v databázi Scopus

2-s2.0-85149814152