Contaminant-free alpha particles signature from laser-driven proton-boron fusion plasma using Thomson parabola spectrometer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F10974938%3A_____%2F25%3A25_87_11" target="_blank" >RIV/10974938:_____/25:25_87_11 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1017/lpb.2025.10005" target="_blank" >https://doi.org/10.1017/lpb.2025.10005</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1017/lpb.2025.10005" target="_blank" >10.1017/lpb.2025.10005</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Contaminant-free alpha particles signature from laser-driven proton-boron fusion plasma using Thomson parabola spectrometer

Popis výsledku v původním jazyce

Accurate discrimination and energy measurement of alpha particles remain a key challenge in proton boron fusion driven by high-intensity laser-plasma interaction due to the complex mix of ions generated in these extreme conditions. We present a novel implementation of a high-accuracy, low-background technique involving a CR-39 enhanced image plate that was used with a Thomson parabola spectrometer (TPS) and differential filtering. This technique demonstrated a strong reduction in background contamination arising from plasma ions compared to standard CR-39 and allowed for the generation of a contaminant-free alpha particle energy spectrum from a boron foam target irradiated by a 10 J, 800 fs laser pulse with an intensity of $sim$$2times10<^>{19} Wcm<^>{-2}$. The laser pulse was from a hybrid Ti:Sapphire-Nd:glass system generated from the Chirped Pulse Amplification (CPA) mode. The spectrum covered an energy range of 3-8 MeV with a corresponding energy resolution of 0.1-0.5 MeV. The developed filtering technique has the potential to measure even lower energy ranges, further extending its applicability compared with existing methods. The differential filtering solution strongly reduces the signal from carbon ions that would otherwise overlap the alpha particle trace on the TPS, providing a quasi-contaminant-free signal, while the CR-39 enhanced the detection sensitivity compared to other detectors.

Název v anglickém jazyce

Contaminant-free alpha particles signature from laser-driven proton-boron fusion plasma using Thomson parabola spectrometer

Popis výsledku anglicky

Accurate discrimination and energy measurement of alpha particles remain a key challenge in proton boron fusion driven by high-intensity laser-plasma interaction due to the complex mix of ions generated in these extreme conditions. We present a novel implementation of a high-accuracy, low-background technique involving a CR-39 enhanced image plate that was used with a Thomson parabola spectrometer (TPS) and differential filtering. This technique demonstrated a strong reduction in background contamination arising from plasma ions compared to standard CR-39 and allowed for the generation of a contaminant-free alpha particle energy spectrum from a boron foam target irradiated by a 10 J, 800 fs laser pulse with an intensity of $sim$$2times10<^>{19} Wcm<^>{-2}$. The laser pulse was from a hybrid Ti:Sapphire-Nd:glass system generated from the Chirped Pulse Amplification (CPA) mode. The spectrum covered an energy range of 3-8 MeV with a corresponding energy resolution of 0.1-0.5 MeV. The developed filtering technique has the potential to measure even lower energy ranges, further extending its applicability compared with existing methods. The differential filtering solution strongly reduces the signal from carbon ions that would otherwise overlap the alpha particle trace on the TPS, providing a quasi-contaminant-free signal, while the CR-39 enhanced the detection sensitivity compared to other detectors.

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

—

Návaznosti

R - Projekt Ramcoveho programu EK

Rok uplatnění

2025

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

43

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

e8 (1-12)

Kód UT WoS článku

001632888900001

EID výsledku v databázi Scopus

2-s2.0-105024444228