کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5497793 | 1532077 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Research and development of a high-performance differential-hybrid charge sensitive preamplifier
ترجمه فارسی عنوان
تحقیق و توسعه یک پیش ساز تقویت کننده شارژ دیفرانسیلی-هیبرید با کارایی بالا
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کلمات کلیدی
پیش تقویت کننده حساس شارژ، تقویت کننده هیبرید دیفرانسیل، کاسکوپ رولر بوت استرپ،
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
چکیده انگلیسی
A differential-hybrid charge sensitive preamplifier (CSP) was designed by taking a monolithic dual N-Channel Junction Field-effect Transistor (JFET) and a high-speed, low-noise, operational amplifier as the core parts. Input-stage of the circuit employs low-noise differential dual JFET, which ensures high input impedance and low noise. The differential dual transistor makes the quiescent point of the first-stage differential output stable, which is convenient for connecting with the post stage high-speed operational amplifier. Broadband could be amplified by connecting to the double differential dual transistors through the folded cascode-bootstrap. The amplifying circuit which replaces the interstage and post stage discrete components of a traditional CSP with integrated operational amplifier is simpler and more reliable. It simplifies the design of the quiescent point, gives full play to advantages of releasing large open-loop gain, and improves charge-voltage conversion gain stability. Particularly, the charge-voltage conversion gain is larger under a smaller feedback capacitor, thus enabling to gain better signal-noise ratio. The designed CSP was tested, reporting 3.3Ã1013 V/C charge sensitivity, about 90Â ns rise time of signals, 35:1 signal-noise ratio to gamma-rays of 137Cs (662Â keV) and a 0.023 fC/pF noise slope. Gamma-rays of 241Am (59.5Â keV) were measured by the BPX66 detector and the designed CSP under room temperature, providing 1.97% energy resolution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Radiation and Isotopes - Volume 120, February 2017, Pages 95-100
Journal: Applied Radiation and Isotopes - Volume 120, February 2017, Pages 95-100
نویسندگان
Guoqiang Zeng, Chuanhao Hu, Shilong Wei, Jian Yang, Qiang Li, Liangquan Ge, Chengjun Tan,