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مقاله پژوهشی: بررسی عملکرد یک آشکارساز صفحه عایق با اندازه‌گیری نرخ شمارش | ||
| فیزیک کاربردی ایران | ||
| مقاله 3، دوره 11، شماره 4 - شماره پیاپی 27، دی 1400، صفحه 38-56 اصل مقاله (929.99 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22051/ijap.2021.37470.1233 | ||
| نویسندگان | ||
| یوسف پزشکیان* 1؛ مجید احمدپوری2 | ||
| 1استادیار، گروه فیزیک، دانشکده علوم پایه، دانشگاه صنعتی سهند، تبریز، ایران | ||
| 2دانشجوی دکترا، گروه فیزیک، دانشکده علوم پایه، دانشگاه صنعتی سهند، تبریز، ایران | ||
| چکیده | ||
| آشکارساز صفحه عایق یک آشکارساز ذرات گازی برای استفاده در آزمایش‌های فیزیک ذرات است و امروزه کاربردهای متنوع آن درصنعت قابل مشاهده است. نمونه‌ای از آشکارساز صفحه عایق تک‌گاف با پهنای گاف mm 2 از ورقههای شیشه‌ای ساخته شده است. در این آشکارساز برای سادگی تنها از یک ورقه مربعی آلومینیومی cm2 10×10 برای دریافت علامت استفاده شد. یک مدار الکترونیکی در آزمایشگاه طراحی و ساخته شده که بتواند علامت تولید شده در آشکارساز را دریافت، تقویت و در قالب تعداد رخدادها در واحد زمان (نوفه) در رایانه ثبت نماید. در این مطالعه از نرخ شمارش ذرات برای بررسی عملکرد آشکارساز استفاده نموده و نشان دادهایم که با افزودن لایههای محافظ آهنی بر بالای آشکارساز بخشی از ذرات مرتبط با پرتوهای کیهانی حذف میشوند و میزان نرخ شمارش کاهش مییابد. همچنین حساسیت آشکارساز به فوتونهای keV 60 مربوط به چشمه امرسیوم بررسی شد. با وجود مشاهده افزایش نرخ شمارش در حضور چشمه، کارایی آشکارساز برای مشاهده گاماهای keV 60 بسیار پایین است. تمام اندازهگیریها در چندین ولتاژ بالای اعمالی در ناحیه 1 تا kV 3 تکرار شدهاند. | ||
| کلیدواژه‌ها | ||
| آشکارساز صفحه عایق؛ آشکارساز گازی؛ میون کیهانی؛ چشمه امرسیوم | ||
| عنوان مقاله [English] | ||
| Research Paper: Evaluating the Performance of a Resistive Plate Chamber by Measurement of the Detector’s Count Rate | ||
| نویسندگان [English] | ||
| Yousef Pezeshkian1؛ Majid Ahmadpouri2 | ||
| 1Assistant Professor, Department of Physics, Sahand University of Technology, Tabriz, Iran | ||
| 2PhD Student, Physics department, Sahand University of Technology, Tabriz, Iran | ||
| چکیده [English] | ||
| Resistive plate chamber (RPC) is a gaseous particle detector primarily developed for particle physics experiments and found vast applications in industry. We have constructed a prototype of a single gap glass RPC, with gap width of 2 mm. For simplicity, this prototype has a single 10×10 cm2 Al pad to readout the detector’s signals. An electronic board is designed and built at our laboratory to receive, amplify and register pulses as counts per unit time at the computer. In this study, we have used the count rate (noise) as an indicator of the detector's performance. We observed that the count rate reduced in the presence of Fe shields above the detector, due to the absorption of particles related to the cosmic rays. We also studied the sensitivity of the detector to the 60 keV gammas of the Am source. Although an increase in the count rate in the presence of the 241Am source is evident, the efficiency of the detector to 60 keV gammas is very small. All of the measurements are performed at several high voltages between 1 kV and 3 kV. | ||
| کلیدواژه‌ها [English] | ||
| Resistive Plate Chamber (RPC), Gaseous Detector, Cosmic Muons, Americium Source | ||
| مراجع | ||
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