Laser-based calibration for the HARP time of flight system

被引:26
|
作者
Bonesini, M [1 ]
Ferri, F
Govoni, P
Paganoni, M
Parravicini, A
Tonazzo, A
Andreoni, A
Bondani, M
Paleari, F
Spinelli, AS
Gibin, D
Guglielmi, A
Menegolli, A
机构
[1] Ist Nazl Fis Nucl, Sez Milano, Dipartimento Fis G Occhialini, I-20123 Milan, Italy
[2] Ist Nazl Fis Nucl, I-00146 Rome, Italy
[3] Univ Rome 3, I-00146 Rome, Italy
[4] INFM, Unita Como, I-22100 Como, Italy
[5] Dipartimento Sci Chim Fis & Matemat, I-22100 Como, Italy
[6] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy
关键词
radiation detectors; pulsed lasers; scintillation detectors;
D O I
10.1109/TNS.2003.814545
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A precise calibration and monitoring system has been developed for the HARP experiment scintillator-based time of flight system. An Nd-Yag laser with passive Q-switch and active/passive mode-locking and a custom-made laser light injection system based on a bundle of IR monomode optical fibers were used. The laser pulse timing was provided by a novel ultrafast InGaAs MSM photodiode, with 30 ps risetime. Experience over a several month data taking period in 2001 and 2002 shows that drifts in timing down to about 70 ps can be traced.
引用
收藏
页码:1053 / 1058
页数:6
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