کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1833306 1027537 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Chemical compound targets for SHIP on heated carbon backings
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
Chemical compound targets for SHIP on heated carbon backings
چکیده انگلیسی

The application of metallic lead and metallic bismuth targets is limited at high beam currents due to their low melting temperature. To permit using increased beam intensity, we have investigated chemical compounds with higher melting temperatures as targets. Their substitution for metallic targets is crucial for increasing the sensitivity of superheavy element experiments. Heating the carbon backing during evaporation proved to be essential for a successful application of PbS targets in a production run for superheavy elements. It turned out that this procedure quite generally leads to an enhancement of the durability of the carbon backings during evaporation of additional material. Such improved 208PbS targets were irradiated with 54Cr and the cross-section for the production of 261Sg was directly compared with the one obtained from metallic 208Pb. The performance of Bi2O3 and BiF3 targets was also tested using the same projectile to determine which compound would be the more promising substitute for metallic bismuth.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 561, Issue 1, 15 May 2006, Pages 107–111
نویسندگان
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