Measurements of extremely low radioactivity levels in BOREXINO

被引：135

作者：

Arpesella, C

Back, HO

Balata, M

Beau, T

Bellini, G

Benziger, J

Bonetti, S

Brigatti, A

Buck, C

Caccianiga, B

Cadonati, L

Calaprice, F

Cecchet, G

Chen, M

Dadoun, O

D'Angelo, D

De Bari, A

de Bellefon, A

De Hass, E

de Kerret, H

Derbin, A

Deutsch, M

Di Credico, A

Elisei, F

Etenko, A

von Feilitzsch, F

Fernholz, R

Ford, R

Franco, D

Freudiger, B

Galbiati, C

Gatti, F

Gazzana, S

Giammarchi, MG

Giugni, D

Göger-Neff, M

Goldbrunner, T

Golubchikov, A

Goretti, A

Grieb, C

Hagner, C

Hagner, T

Hampel, W ^{[1
]}

Harding, E

Hartmann, FX

von Hentig, R

Heusser, G

Hult, M

Ianni, A

Ianni, AM

机构：

[1] Max Planck Inst Kernphys, D-69029 Heidelberg, Germany

[2] Lab Nazl Gran Sasso, I-67010 Assergi, Italy

[3] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA

[4] Coll France, F-75231 Paris, France

[5] Univ Milan, Dept Phys, I-20133 Milan, Italy

[6] Ist Nazl Fis Nucl, I-20133 Milan, Italy

[7] Princeton Univ, Dept Chem Engn, Princeton, NJ 08544 USA

[8] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[9] Univ Pavia, Dept Phys, I-27100 Pavia, Italy

[10] Ist Nazl Fis Nucl, I-27100 Pavia, Italy

[11] Queens Univ, Kingston, ON K7L 3N6, Canada

[12] Univ Genoa, Dept Phys, I-16146 Genoa, Italy

[13] Ist Nazl Fis Nucl, I-16146 Genoa, Italy

[14] Joint Inst Nucl Res, Dubna 141980, Russia

[15] MIT, Cambridge, MA 02139 USA

[16] Univ Perugia, Dept Chem, I-06123 Perugia, Italy

[17] Ist Nazl Fis Nucl, I-06123 Perugia, Italy

[18] Kurchatov Inst, Moscow 123182, Russia

[19] Tech Univ Munich, D-85747 Garching, Germany

[20] Inst Reference Mat & Measurements, B-2440 Geel, Belgium

[21] Res Inst Particle & Nucl Phys, H-1121 Budapest, Hungary

[22] Bell Labs, Murray Hill, NJ 07974 USA

[23] Joint Res Ctr EU, Inst Environm, I-21020 Ispra, Italy

[24] Jagiellonian Univ, PL-30059 Krakow, Poland

来源：

ASTROPARTICLE PHYSICS | 2002年 / 18卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0927-6505(01)00179-7

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The techniques researched, developed and applied towards the measurement of radioisotope concentrations at ultra-low levels in the real-time solar neutrino experiment BOREXINO at Gran Sasso are presented and illustrated with specific results of widespread interest. We report the use of low-level germanium gamma spectrometry, low-level miniaturized gas proportional counters and low background scintillation detectors developed in solar neutrino research. Each now sets records in its field. We additionally describe our techniques of radiochemical ultra-pure, few atom manipulations and extractions. Forefront measurements also result from the powerful combination of neutron activation and low-level counting. Finally, with our techniques and commercially available mass spectrometry and atomic absorption spectroscopy, new low-level detection limits for isotopes of interest are obtained. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：1 / 25

页数：25

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