On 27/11/2018:

Run # 181127200709

• Run time: 46329s
• Pulser ON, as before
• No target
• No beam
• Lab background
• DT ~ 12%
• See attached picture 1 for sample far S2 front strip spectrum. See attached picture 2 for diode spectrum.

At 20:00:

Far S2 bias = -130.0V, leak I = 1.52uA. Diode bias = -70.1V, leak I = 0.00uA. Preamps drawing correct current.

Pressures (mBar):

• TPU1 = 7.0e-6
• TPU2 = 1.9e-6
• TPD1 = 1.5e-6
• TPD2 = 1.7e-6
• CHUP = Sensor Off
• CHDW = No Sensor

Rate meter ~ 5000Hz

On 28/11/2018:

At 8:55 Far S2 bias = -130.0V, leak I = 1.67uA. Diode bias = -70.1V, leak I = 0.00uA.

Rate meter ~ 4100Hz

Pressures (mBar):

• TPU1 = 8.5e-7
• TPU2 = 6.3e-7
• TPD1 = 7.5e-7
• TPD2 = 6.5e-7
• CHUP = Sensor Off
• CHDW  No Sensor

Stopped lab background run