ILLUMINATION OF A BLACK-BOX - ANALYSIS OF GAS-COMPOSITION DURING GRAPHITE TARGET PREPARATION

被引:83
作者
MCNICHOL, AP
GAGNON, AR
JONES, GA
OSBORNE, EA
机构
关键词
D O I
10.1017/S0033822200063499
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
We conducted a study of relative gas composition changes of CO2, CO and CH4 during the formation of graphite targets using different temperatures, catalysts and methods. Reduction with H-2 increases the reaction rate without compromising the quality of the AMS target produced. Methane is produced at virtually any temperature, and the amount produced is greater at very low temperatures. The reduction of CO to graphite is very slow when H-2 is not included in the reaction.
引用
收藏
页码:321 / 329
页数:9
相关论文
共 10 条
  • [1] Boudouard O, 1901, ANN CHIM PHYS, V24, P5
  • [2] GAGNON AR, 1991, RADIOCARBON, V32, P198
  • [3] PRODUCTION OF GRAPHITE TARGETS BY DEPOSITION FROM CO/H-2 FOR PRECISION ACCELERATOR C-14 MEASUREMENTS
    JULL, AJT
    DONAHUE, DJ
    HATHEWAY, AL
    LINICK, TW
    TOOLIN, LJ
    [J]. RADIOCARBON, 1986, 28 (2A) : 191 - 197
  • [4] C-H-O SYSTEMS IN PRESENCE OF AN IRON CATALYST
    MANNING, MP
    REID, RC
    [J]. INDUSTRIAL & ENGINEERING CHEMISTRY PROCESS DESIGN AND DEVELOPMENT, 1977, 16 (03): : 358 - 361
  • [5] OHANLON JF, 1989, USERS GUIDE VACUUM T
  • [6] SLOTA PJ, 1987, RADIOCARBON, V29, P303
  • [7] TURKDOGAN ET, 1974, METALL TRANS, V5, P11
  • [8] CATALYST AND BINDER EFFECTS IN THE USE OF FILAMENTOUS GRAPHITE FOR AMS
    VOGEL, JS
    SOUTHON, JR
    NELSON, DE
    [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1987, 29 (1-2) : 50 - 56
  • [9] VOGEL JS, 1987, RADIOCARBON, V29, P323
  • [10] VONREDEN KF, 1992, RADIOCARBON, V34