ANGULAR-DEPENDENCE OF THE DOPPLER BROADENING IN THE RESONANCE OF THE H-1(N-15,ALPHA-GAMMA)C-12 REACTION

被引：5
|
作者：
IWATA, Y
机构：
[1] Electrotechnical Laboratory, Tsukuba-shi, Ibaraki, 305, Umezono
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1991年 / 56-7卷
关键词：
D O I：
10.1016/0168-583X(91)96072-S
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We provide the first direct demonstration of the three-dimensional vibrational motion of hydrogen monoatomically chemisorbed at the bridge sites on a well defined W(001) surface in beta-1 phase, by the Doppler broadening in the narrow resonance of the H-1(15H, alpha-gamma)C-12 (E(res) = 6.385 MeV) reaction. The beam-incident angle (theta) dependence of the Doppler width shows that the mean square of momentum <p2> of vibrating hydrogen on the surface takes the maximum at theta = 15-degrees. We propose a possible model that the bridge plane leans away from the axis perpendicular to the surface due to the interaction between the hydrogen atoms opposite to each other.
引用
下载
收藏
页码：469 / 472
页数：4
相关论文
共 50 条
  • [1] ANGULAR CORRELATIONS IN THE REACTION N-15(P,ALPHA-GAMMA)C-12
    SEED, J
    FRENCH, AP
    PHILOSOPHICAL MAGAZINE, 1952, 43 (346): : 1214 - 1216
  • [2] OFF-RESONANCE AND STRAGGLING MEASUREMENTS USING THE H-1(N-15, ALPHA-GAMMA)C-12 REACTION
    HJORVARSSON, B
    RYDEN, J
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1990, 45 (1-4): : 36 - 40
  • [3] ABSORPTION OF HYDROGEN IN SUPERLATTICES STUDIED BY THE N-15(H-1,ALPHA-GAMMA)C-12 REACTION
    HJORVARSSON, B
    JOURNAL OF THE LESS-COMMON METALS, 1991, 172 : 776 - 783
  • [4] DEFECT TRAPPING OF HYDROGEN IN IRON STUDIED BY THE H-1(N-15, ALPHA-GAMMA)C-12 REACTION
    FRECH, G
    WOLF, GK
    DAMJANTSCHITSCH, H
    WEISER, M
    KALBITZER, S
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH, 1983, 218 (1-3): : 500 - 503
  • [5] A STUDY OF HYDROGEN-ATOMS ON SOLID-SURFACES BY UTILIZING THE DOPPLER BROADENING OF THE H-1(N-15, ALPHA-GAMMA)C-12 NUCLEAR-REACTION
    FUJIMOTO, F
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1990, 45 (1-4): : 49 - 53
  • [6] DETECTION OF HYDROGEN ADSORBED ON TUNGSTEN SURFACES USING THE H-1(N-15, ALPHA-GAMMA)C-12 REACTION
    IWATA, Y
    FUJIMOTO, F
    VILALTA, E
    OOTUKA, A
    KOMAKI, K
    KOBAYASHI, K
    YAMASHITA, H
    MURATA, Y
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1988, 33 (1-4): : 574 - 577
  • [7] DETECTION OF ADSORBED HYDROGEN ON W(001) BY USING H-1(N-15,ALPHA-GAMMA)C-12 REACTION
    IWATA, Y
    FUJIMOTO, F
    VILALTA, E
    OOTUKA, A
    KOMAKI, K
    KOBAYASHI, K
    YAMASHITA, H
    MURATA, Y
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1987, 26 (06): : L1026 - L1028
  • [8] DEFECT TRAPPING OF HYDROGEN IN IRON AND STEEL MEASURED BY THE H-1(N-15,ALPHA-GAMMA)C-12 REACTION
    FRECH, G
    WOLF, GK
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1986, 15 (1-6): : 520 - 524
  • [9] OBSERVATION OF THE BOND-DEPENDENT DOPPLER BROADENING OF THE P(N-15, ALPHA-GAMMA) C-12 NUCLEAR-REACTION
    HORN, KM
    LANFORD, WA
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1988, 29 (04): : 609 - 620
  • [10] ANGULAR DISTRIBUTION OF THE GAMMA-RAYS FROM THE REACTION N-15(P,ALPHA-GAMMA) C-12
    BARNES, CA
    JAMES, DB
    NEILSON, GC
    CANADIAN JOURNAL OF PHYSICS, 1952, 30 (06) : 717 - 718
12345