کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8167984 | 1526289 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High-rate axial-field ionization chamber for particle identification of radioactive beams
ترجمه فارسی عنوان
اتاق یون سازی میدان مغناطیسی با سرعت بالا برای شناسایی ذرات پرتوهای رادیواکتیو
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کلمات کلیدی
اتاق یونیزاسیون، شناسایی ذرات، پرتو رادیواکتیو،
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
چکیده انگلیسی
The design, construction and performance characteristics of a simple axial-field ionization chamber suitable for identifying ions in a radioactive beam are presented. Optimized for use with low-energy radioactive beams (<5MeV/A) the detector presents only three 0.5 µm/cm2 foils to the beam in addition to the detector gas. A fast charge sensitive amplifier (CSA) integrated into the detector design is also described. Coupling this fast CSA to the axial field ionization chamber produces an output pulse with a risetime of 60-70 ns and a fall time of 100 ns, making the detector capable of sustaining a relatively high rate and providing a time resolution of 6-8 ns. Tests with an α source establish the detector energy resolution as â¼8% for an energy deposit of â¼3.5 MeV. The energy resolution with beams of 2.5 and 4.0 MeV/A 39K ions and the dependence of the energy resolution on beam intensity is measured. At an instantaneous rate of 3Ã105 ions/s the energy resolution has degraded to 14% with a pileup of 12%. The good energy resolution of this detector at rates up to 3Ã105 ions/s makes it an effective tool in the characterization of low-energy radioactive beams.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 837, 21 November 2016, Pages 28-33
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 837, 21 November 2016, Pages 28-33
نویسندگان
J. Vadas, Varinderjit Singh, G. Visser, A. Alexander, S. Hudan, J. Huston, B.B. Wiggins, A. Chbihi, M. Famiano, M.M. Bischak, R.T. deSouza,