ANASEN

First Generation

NIM paper : https://doi.org/10.1016/j.nima.2017.07.030 PRC paper : https://doi.org/10.1103/PhysRevC.105.055806

Second Generation

Section of ANASEN with twisted wire configuration

A simulation, showed the Anode wires, the Cathode wites, the SuperX3 Silicon Detector, and QQQ Silicon Detector. The simulation shows Anode-9 and Cathode-15 are hit.

The main difference from the 1st generation is the Twisted Anode and Cathode wires.

Basics Geometry

There are 5 Layers on the radial position of the ANASEN.

Structure	Radius [mm]
ionizing wires	23
Graurd wires	33
Anode wires	38
Cathode wires	43
SuperX3 Silicon	88

SuperX3 Silicon Detector Array

A drawing of SuperX3 silicon detector

There are 24 Super-X3 double-sided Silicon detectors on the wall of the ANASEN. They are placed 88 mm away from the beam axis. Each of them has 75 mm X 40 mm sensitive area. Thus, the super-X3 covers a forward and backward angle of 40 deg.