[Solid_tof] 回复: MRPC position resolution

yiwang yiwang at mail.tsinghua.edu.cn
Thu Sep 1 21:58:21 EDT 2016

Dear Zhiwen,
Our MRPC is strip readout. The spatial along the strip can be obtained according the time differenc of sginals of two ends, it ls about a few mms. The spatial across the strip is about strip width/square root of 12.
best regards,

Yi Wang
Department of Engineering Physics, Tsinghua University
Liuqing Building Room412, Beijing, 100084, China
Phone and Fax: 8610-62771960
Mobil: 86-13331129352

From: Zhiwen Zhao
Date: 2016-09-02 05:24
To: yiwang; solid_tof
Subject: MRPC position resolution
Dear Yi

What's the estimation of MRPC position resolution?
It can be useful for us to estimate overall performance for different study.

I am thinking it could be at different level
1. offline analysis stage.
Together with timing resolution, this will affect PID. The hit can be a 
seed for tracking also. This needs the best resolution possible.
2. level 3 trigger stage.
We want to use hit on MRPC as a seed for a fast and rough tracking. This 
resolution can be larger, but can be obtained quickly with limited info, 
maybe close to readout strip size?
3. level 1 trigger stage.
we want to match the hit on MRPC to these 100cm2 EC modules. so the 
resolution can be very rough, maybe just module size?

So I am guessing 1mm,1cm,10cm for 1,2,3

Please let me know what's the best value you can estimate for now.
This would be very helpful.


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