NUCLEAR-REACTION ANALYSIS OF HYDROGEN AT LEVELS BELOW 10 AT PPM

被引：35

作者：

ENDISCH, D ^{[1
]}

STURM, H ^{[1
]}

RAUCH, F ^{[1
]}

机构：

[1] JW GOETHE UNIV FRANKFURT,INST KERNPHYS,D-60486 FRANKFURT,GERMANY

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1994年 / 84卷 / 03期

关键词：

D O I：

10.1016/0168-583X(94)95731-2

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A setup for sensitive hydrogen analysis with the H(N-15,alphagamma)C-12 reaction has been developed. The detector for the reaction gamma-rays is a bore-hole BGO scintillation counter with an efficiency of 27%. The natural-radiation background count rate is reduced by lead and anticoincidence shielding to 25 counts/h. This detector system is used in combination with a specially designed UHV chamber which enables measurements under vacuum in the 10(-10) mbar region. Various kinds of background arising from interaction of the ion beam with parts of the beam line and with contaminations on the sample surface (H, D, C) as well as possibilities for background quantification and reduction have been investigated for N-15 ion energies up to 12 MeV. Profiling examples demonstrating a detection sensitivity of better than 10 at.ppm are presented.

引用

页码：380 / 392

页数：13

共 26 条

[1] HYDROGEN EQUILIBRIUM SEPARATION FACTORS IN METAL HYDROGEN SYSTEMS, A SYNOPSIS ON THE BASIS OF THE LOCALIZED HARMONIC-OSCILLATOR MODEL [J].

ANDREEV, BM ;

SICKING, GH .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1987, 91 (03) :177-184

[2]

BYOUNGGON Y, 1990, JPN J APPL PHYS, V30, P290

[3] AN IN-BEAM-LINE LOW-LEVEL SYSTEM FOR NUCLEAR-REACTION GAMMA-RAYS [J].

DAMJANTSCHITSCH, H ;

WEISER, M ;

HEUSSER, G ;

KALBITZER, S ;

MANNSPERGER, H .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH, 1983, 218 (1-3) :129-140

[4] APPLICATION OF THE N-15 NUCLEAR-REACTION TECHNIQUE FOR HYDROGEN ANALYSIS IN POLYMER THIN-FILMS [J].

ENDISCH, D ;

RAUCH, F ;

GOTZELMANN, A ;

REITER, G ;

STAMM, M .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1992, 62 (04) :513-520

[5]

ENDISCH D, IN PRESS

[6]

FOLFS C, 1974, NUCL PHYS A, V235, P450

[7]

Fromm E., 1976, GASE KOHLENSTOFF MET

[8]

GORODETZKY S, 1968, NUCL PHYS A, V113, P211

[9] HIGH-SENSITIVITY ANALYSIS OF DEUTERIUM IN SOLIDS BY N-15 INDUCED NUCLEAR-REACTIONS [J].

HAYASHI, S ;

NAGAI, H ;

ARATANI, M ;

NOZAKI, T ;

YANOKURA, M ;

KOHNO, I ;

KUBOI, O ;

YATSURUGI, Y .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1986, 16 (4-5) :377-382

[10] OFF-RESONANCE AND STRAGGLING MEASUREMENTS USING THE H-1(N-15, ALPHA-GAMMA)C-12 REACTION [J].

HJORVARSSON, B ;

RYDEN, J .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1990, 45 (1-4) :36-40

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