Momentum measurement by the angular method in the Emulsion Cloud Chamber
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- 作者：De Serio ; M. ; Ieva ; M. ; Simone ; S. ; Giorgini ; M. ; Sioli ; M. ; Sirri ; G. ; Buontempo ; S. ; D'Ambrosio ; N. ; et. al.
- 关键词：29.30.Ep ; 29.40.Rg ; Emulsion Cloud Chamber ; Momentum measurement
- 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
- 出版年：2003
- 出版时间：October 21, 2003
- 年：2003
- 卷：512
- 期：3
- 页码：539-545
- 全文大小：138 K
文摘
We present the first automated momentum measurement in an Emulsion Cloud Chamber, consisting of multiple sandwiches of lead plates and nuclear emulsion sheets. The measurement is based on the detection of the multiple Coulomb scattering analysed by the so-called angular method. A 3X<sub>0sub> chamber was exposed to 2, 3 and 4GeV/c π<sup>−sup>. A pion momentum resolution of 36 % at 4GeV/c, 35 % at 3GeV/c and 28 % for 2GeV/c was achieved.