کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1689922 | 1518950 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Outgassing of TPS pulsed kicker magnets decreased with vacuum firing
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
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چکیده انگلیسی
Two in-vacuum kicker magnets serve to inject and to extract the electron beams for the TPS injector. A large gas load generated from the outgassing of kicker ferrites (CMD5005) causes concern. To study the effect of vacuum firing in decreasing the outgassing from kicker ferrites, we set up a test bench to record spectra from a residual-gas analyzer (RGA) and measured the rates of outgassing during vacuum firing. The RGA spectrum revealed that water vapor is the dominant gas from the unbaked ferrites; with the throughput method the rate of outgassing, q2.7 (Ferrite), before baking was 5.5 Ã 10â9 mbar L sâ1 cmâ2. A duration 40 h of vacuum firing at 200 °C is required to remove the water vapor from the kicker ferrites and to yield a rate between 2.2 Ã 10â12 and 2.6 Ã 10â12 mbar L sâ1 cmâ2 after vacuum firing.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 119, September 2015, Pages 168-173
Journal: Vacuum - Volume 119, September 2015, Pages 168-173
نویسندگان
C.K. Chan, C.C. Chang, C.L. Chen, C.S. Chen, C.S. Yang,