Working parameters of the electron-beam-generated ion source for ISOL facilities

被引：0

作者：

Yushkevich, Yuriy V. ^{[3
]}

Turek, Marcin ^{[2
]}

Maczka, Dariusz ^{[1
]}

Pyszniak, Krzysztof ^{[2
]}

Slowinski, Bronistaw ^{[1
]}

Vaganov, Yuriy A. ^{[3
]}

Zubrzycki, Jaroslaw ^{[4
]}

机构：

[1] Inst Atom Energy POLATOM, PL-05400 Otwock, Poland

[2] Marie Curie Sklodowska Univ, Inst Phys, PL-20031 Lublin, Poland

[3] Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia

[4] Tech Univ Lublin, Inst Technol Syst Informat, PL-20618 Lublin, Poland

来源：

NUKLEONIKA | 2012年 / 57卷 / 03期

关键词：

on-line isotope separation; short-lived nuclides; nuclear spectroscopy; ion sources; IONIZATION; THERMOIONIZATION; EFFICIENCY;

D O I：

暂无

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

An electron-beam generated plasma (EBGP) ion source for nuclear spectroscopy purposes at YASNAPP (YAdernaya Spektroskopya NA Putchkah Protonov - nuclear spectroscopy using proton beams) isotope separation on-line facility is presented. Working conditions both in on- and off-line mode are presented and discussed. Formation of a potential trap inside a discharge chamber is an advantage of the presented construction, enabling relatively high ionization efficiencies (2-5%) even for hard-to-ionize elements like Be, Ti, V, Zr, Nb, Mo, Tc, Ru, Rd, Hf, Ta, W, Re, Os, Ir, Pt. The paper presents estimation of critical values of working parameters that enable formation of the ion trap leading in consequence to high efficiency of ionization. The optimal temperature of the discharge chamber and cathode walls is found to be in the range 2600-2800 K. Calculations of the output rates of ions produced in the on-line mode are also presented as well as the constraints on the half-life time of obtained nuclides imposed by construction details like the target material and its thickness.

引用

页码：351 / 356

页数：6