Barrel time-of-flight detector for the PANDA experiment at FAIR
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- 作者：L. Gruber<sup>asup><sup> ; sup><sup>bsup><sup> ; sup> ; S.E. Brunner<sup>asup> ; J. Marton<sup>asup> ; H. Orth<sup>bsup> ; K. Suzuki<sup>asup> ; On behalf of the PANDA TOF Group
- 关键词：Scintillation detector ; Time-of-flight detector ; Particle identification ; Silicon Photomultiplier (SiPM) ; Digital Photon Counter ; PANDA experiment
- 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
- 出版年：2016
- 出版时间：11 July 2016
- 年：2016
- 卷：824
- 期：Complete
- 页码：104-105
- 全文大小：235 K
文摘
The barrel time-of-flight detector for the PANDA experiment at FAIR is foreseen as a Scintillator Tile (SciTil) Hodoscope based on several thousand small plastic scintillator tiles read-out with directly attached Silicon Photomultipliers (SiPMs). The main tasks of the system are an accurate determination of the time origin of particle tracks to avoid event mixing at high collision rates, relative time-of-flight measurements as well as particle identification in the low momentum regime. The main requirements are the use of a minimum material amount and a time resolution of <span id="mmlsi0002" class="mathmlsrc">source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0168900215013479&_mathId=si0002.gif&_user=111111111&_pii=S0168900215013479&_rdoc=1&_issn=01689002&md5=6c01707ecda0b19eafdf150c5e08b623">![]()
ss="imgLazyJSB inlineImage" height="13" width="66" alt="View the MathML source" style="margin-top: -5px; vertical-align: middle" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0168900215013479-si0002.gif">script>![]()
border="0" style="vertical-align:bottom" width="66" alt="View the MathML source" title="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0168900215013479-si0002.gif"> script><span class="mathContainer hidden"><span class="mathCode">span>span>span>. We have performed extensive optimization studies and prototype tests to prove the feasibility of the SciTil design and finalize the R&D phase. In a 2.7 GeV/c proton beam at Forschungszentrum Jülich a time resolution of about 80 ps has been achieved using SiPMs from KETEK and Hamamatsu with an active area of <span id="mmlsi0003" class="mathmlsrc">source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0168900215013479&_mathId=si0003.gif&_user=111111111&_pii=S0168900215013479&_rdoc=1&_issn=01689002&md5=d333ae58b700f889e5e27e235fd1786c">![]()
ss="imgLazyJSB inlineImage" height="12" width="66" alt="View the MathML source" style="margin-top: -5px; vertical-align: middle" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0168900215013479-si0003.gif">script>![]()
border="0" style="vertical-align:bottom" width="66" alt="View the MathML source" title="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0168900215013479-si0003.gif"> script><span class="mathContainer hidden"><span class="mathCode">span>span>span>. Employing the Digital Photon Counter from Philips a time resolution of about 30 ps has been reached.