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Test of the 2-D Detector



These following images were taken by using 2-dimensional delay line detector (Roentdek DLD-40).

2-D Detector's Image No.1
threshold : 3.5V
applied voltages
*MCP front : -2100V
*MCP back : 0V
*Anode Holder : 100V
*Reference wires : 350V
*Collecting (Signal) wires : 400V
Pulse With : W1 = 4.7V , W3-6 = 4.7V


2-D Detector's Image No.2
threshold : 3.5V
applied voltages
*MCP front : -2100V
*MCP back : 0V
*Anode Holder : 100V
*Reference wires : 350V
*Collecting (Signal) wires : 400V
Pulse With : W1 = 1.0V , W3-6 = 4.7V


2-D Detector's Image No.3


threshold : 3.5V
applied voltages
*MCP front : -2100V
*MCP back : 0V
*Anode Holder : 100V
*Reference wires : 350V
*Collecting (Signal) wires : 400V
Pulse With : W1 = 1.0V , W3-6 = 1.0V


2-D Detector's Image No.3

Only this without Am-241 alpha source.
threshold : 3.5V
applied voltages
*MCP front : -2100V
*MCP back : 0V
*Anode Holder : 100V
*Reference wires : 350V
*Collecting (Signal) wires : 400V
Pulse With : W1 = 4.7V , W3-6 = 4.7V


2-D Detector's Image No.4

The start signal cable (from MCP fromt) was cut from 6m to 3m.
threshold : 3.5V
applied voltages
*MCP front : -2100V
*MCP back : 0V
*Anode Holder : 100V
*Reference wires : 350V
*Collecting (Signal) wires : 400V
Pulse With : W1 = 4.7V , W3-6 = 4.7V


Notice : The hexagonal shape of these images is a mesh mounted on front of the detector.
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