<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Santos, G. M.</style></author><author><style face="normal" font="default" size="100%">Mazon, M.</style></author><author><style face="normal" font="default" size="100%">Southon, J. R.</style></author><author><style face="normal" font="default" size="100%">Rifai, S.</style></author><author><style face="normal" font="default" size="100%">Moore, R.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Evaluation of iron and cobalt powders as catalysts for C-14-AMS target preparation</style></title><secondary-title><style face="normal" font="default" size="100%">Nuclear Instruments &amp; Methods in Physics Research Section B-Beam Interactions with Materials and Atoms</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">1705</style></keyword><keyword><style  face="normal" font="default" size="100%">accelerator mass spectrometry</style></keyword><keyword><style  face="normal" font="default" size="100%">accelerator mass-spectrometry</style></keyword><keyword><style  face="normal" font="default" size="100%">ams-facility</style></keyword><keyword><style  face="normal" font="default" size="100%">C-14-AMS sample</style></keyword><keyword><style  face="normal" font="default" size="100%">catalyst</style></keyword><keyword><style  face="normal" font="default" size="100%">co2</style></keyword><keyword><style  face="normal" font="default" size="100%">contamination</style></keyword><keyword><style  face="normal" font="default" size="100%">graphite</style></keyword><keyword><style  face="normal" font="default" size="100%">Keck / AMS Lab</style></keyword><keyword><style  face="normal" font="default" size="100%">preparation</style></keyword><keyword><style  face="normal" font="default" size="100%">radiocarbon</style></keyword><keyword><style  face="normal" font="default" size="100%">reduction</style></keyword><keyword><style  face="normal" font="default" size="100%">Research</style></keyword><keyword><style  face="normal" font="default" size="100%">sample preparation</style></keyword><keyword><style  face="normal" font="default" size="100%">system</style></keyword><keyword><style  face="normal" font="default" size="100%">university</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2007</style></year><pub-dates><date><style  face="normal" font="default" size="100%">06/2007</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1016/j.nimb.2007.01.220</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">1</style></number><volume><style face="normal" font="default" size="100%">259</style></volume><pages><style face="normal" font="default" size="100%">308-315</style></pages><isbn><style face="normal" font="default" size="100%">0168-583X</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">We present an evaluation of different brands of cobalt and iron powders used to catalyze CO2 reduction for C-14-AMS graphite targets at the KCCAMS/University of California, Irvine. The optimal catalyst is characterized by rapid graphitization, homogeneity and lack of sintering of the catalyst/carbon mixture, and contains minimal amounts of both &quot;modern&quot; and &quot;dead&quot; carbon. Fifteen catalyst powders were evaluated using these criteria. The results of this study indicate three good &quot;catalyst-candidates&quot; with backgrounds on processed coal (Argonne Premium coal POC#3) samples around 60 ka BP and modern and dead carbon contamination of &lt;= 0.2 mu gC for 4-5 mg of catalyst. (c) 2007 Elsevier B.V. All rights reserved.</style></abstract><work-type><style face="normal" font="default" size="100%">Article; Proceedings Paper</style></work-type><accession-num><style face="normal" font="default" size="100%">WOS:000247535600058</style></accession-num></record></records></xml>