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Titolo:
Measurements of strongly localized potential well profiles in an inertial electrostatic fusion neutron source
Autore:
Yoshikawa, K; Takiyama, K; Koyama, T; Taruya, K; Masuda, K; Yamamoto, Y; Toku, T; Kii, T; Hashimoto, H; Inoue, N; Ohnishi, M; Horiike, H;
Indirizzi:
Kyoto Univ, Inst Adv Energy, Uji, Kyoto, Japan Kyoto Univ Uji Kyoto Japan yoto Univ, Inst Adv Energy, Uji, Kyoto, Japan Hiroshima Univ, Higashihiroshima 724, Japan Hiroshima Univ Higashihiroshima Japan 724 v, Higashihiroshima 724, Japan Osaka Univ, Suita, Osaka, Japan Osaka Univ Suita Osaka JapanOsaka Univ, Suita, Osaka, Japan
Titolo Testata:
NUCLEAR FUSION
fascicolo: 6, volume: 41, anno: 2001,
pagine: 717 - 720
SICI:
0029-5515(200106)41:6<717:MOSLPW>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
CONVERGENT ION FOCUS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Yoshikawa, K Kyoto Univ, Inst Adv Energy, Uji, Kyoto, Japan Kyoto Univ Uji Kyoto Japan st Adv Energy, Uji, Kyoto, Japan
Citazione:
K. Yoshikawa et al., "Measurements of strongly localized potential well profiles in an inertial electrostatic fusion neutron source", NUCL FUSION, 41(6), 2001, pp. 717-720

Abstract

Direct measurements of localized electric fields have been made hy the laser induced fluorescence (LIF) method using the Stark effect ill the centralcathode core region of an inertial electrostatic confinement fusion (IECF)neutron (proton) source. These are expected to have various applications, such as luggage security inspection, non-destructive testing, land mine detection and positron emitter production for cancer detection, currently producing continuously about 10(7) n/s D- D neutrons. Since 1967, when the first fusion reaction was successfully proved to have taken place in a very compact IECF device, potential well formation due to the space charge associated with spherically converging ion beams has been a central key issue remaining to be clarified in beam beam collision fusion, which is the major mechanism of the IECF neutron source. Many experiments. although indirect, havebeen done so far to clarify the nature of the potential well, but none of them has produced definitive evidence. The results found by the present LIFmethod show a double well potential profile with a slight dip for ion beams with relatively larger angular momenta, whereas for ions with smaller angular momenta, a much steeper potential peak develops.

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Documento generato il 01/12/20 alle ore 08:16:45