کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8250934 | 1533429 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Instrument intercomparison in the pulsed neutron fields at the CERN HiRadMat facility
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Instrument intercomparison in the pulsed neutron fields at the CERN HiRadMat facility Instrument intercomparison in the pulsed neutron fields at the CERN HiRadMat facility](/preview/png/8250934.png)
چکیده انگلیسی
An intercomparison of the performances of active neutron detectors was carried out in pulsed neutron fields in the new HiRadMat facility at CERN. Five detectors were employed: four of them (two ionization chambers and two rem counters) are routinely employed in the CERN radiation monitoring system, while the fifth is a novel instrument, called LUPIN, specifically conceived for applications in pulsed neutron fields. The measurements were performed in the stray field generated by a proton beam of very short duration with momentum of 440 GeV/c impinging on a dump. The beam intensity was steadily increased during the experiment by more than three orders of magnitude, with an H*(10) due to neutrons at the detector reference positions varying between a few nSv per burst and a few μSv per burst, whereas the gamma contribution to the total H*(10) was negligible. The aim of the experiment was to evaluate the linearity of the detector response in extreme pulsed conditions as a function of the neutron burst intensity. The results show that the ionization chambers have a quasi-linear response, very close to the ideal behaviour also for values of H*(10) of a few μSv/burst; the LUPIN response shows a slight deviation from the ideal curve when the H*(10) per burst is higher than 100 nSv; the rem counters response are characterized by a strong deviation from the linearity for H*(10) values higher than a few tens of nSv.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Measurements - Volume 61, February 2014, Pages 25-32
Journal: Radiation Measurements - Volume 61, February 2014, Pages 25-32
نویسندگان
E. Aza, M. Caresana, C. Cassell, N. Charitonidis, E. Harrouch, G.P. Manessi, M. Pangallo, D. Perrin, E. Samara, M. Silari,