DESIGN AND PERFORMANCE OF A LOW-INTENSITY LED DRIVER FOR DETECTOR STUDY PURPOSES

被引：0
|
作者：
Georgiev, G. [1 ,2 ]
Kozhuharov, V. [1 ,3 ]
Tsankov, L. [1 ]
机构：
[1] Sofia Univ St Kliment Ohridski, Fac Phys, Sofia, Bulgaria
[2] Theta Consult Ltd, Sofia, Bulgaria
[3] Ist Nazl Fis Nucl, LNF, Rome, Italy
来源：
FOURTH INTERNATIONAL CONFERENCE ON RADIATION AND APPLICATIONS IN VARIOUS FIELDS OF RESEARCH (RAD 2016) | 2016年
关键词：
LED generator; short light pulses; scintillation detectors; photo detectors;
D O I：
10.21175/RadProc.2016.21
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A custom LED driver producing light pulses with very low intensity and O(10 ns) duration was designed and constructed. A microcontroller was employed to handle the amplitudes and the repetition rates of the output pulses. In addition, it also provided both a PC control of the system through a RS232 interface and an external trigger I/O. A WLS fibre directly coupled to a LED provides unique characteristics of the output light pulse. The combination of a quasi delta light pulse source and physical absorption - emission medium results in an output light profile maximally close to the plastic sctintillators. The light generator is intended to be used to test the response and the rate capability of different photodetectors. Its design, operational characteristics, and stability are described and discussed.
引用
收藏
页码：90 / 94
页数：5
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