August '00

Aug. 1

• Dark current 60 $\mu$A @ 2.2 MW (00:22).

Aug. 2

• Dark current 70 $\mu$A @ 2.2 MW (21:35).

Aug. 3

• Dark current 50 $\mu$A @ 2.2 MW (17:48).

Aug. 4

• Vacuum event. Pressure burst in 2INJ1. Valves closed (06:15).
• Gun trips (CH. 23) and vacuum rise at 2INJ1.
• Dark current 110 $\mu$A @ 2.2 MW (15:59). Still vacuum activity at the gun.

Aug. 5

• Vacuum event. Pressure burst in 2INJ1. Gun vacuum interlock (04:15).

Aug. 6

• Dark current 105 $\mu$A @ 2.2 MW (09:27).
• Vacuum event. Pressure burst in 2INJ1. Valves closed (23:39).

Aug. 7

• Valves opened (00:15).
• Dark current 110 $\mu$A @ 2.2 MW (09:26).

Aug. 8

• Cathode transport chamber is leaking. Pressure 10 $^{-7}$.
• Vacuum event. Pressure burst in 2INJ1. Valves closed (21:32).
• Valves opened (21:50).
• Vacuum event. Pressure burst in 2INJ1. Valves closed (22:16).
• Dark current 90.2 $\mu$A @ 2.2 MW (22:56).

Aug. 9

• Vacuum event. Pressure burst in 2INJ1. Valves closed (12:00).
• Vacuum event. Pressure burst in 2INJ1. Valves closed (14:15).
• Vacuum event. Pressure burst in 2INJ1. Valves closed (14:40).
• Gun rf pulse shortened to 150 $\mu$s.
• Vacuum event. Pressure burst in 2INJ1. Valves closed (16:00).

Aug. 10

• Vacuum event. Pressure burst in 2INJ1. Valves closed (09:00).
• Vacuum event. Pressure burst in 2INJ1. Valves closed (11:40).
• Vacuum event. Pressure burst in 2INJ1. Valves closed (11:50).
• Dark current 134 $\mu$A @ 2.2 MW (14:45).

Aug. 11

• Cathode transport chamber exchanged. Found leak at the small viewport of the old chamber.
• Cathode removed and TSPs fired (11:20).
• Cathode back (13:30).

Aug. 15

• Dark current 66 $\mu$A @ 2.2 MW (18:29).
• Dark current 70 $\mu$A @ 2.2 MW (23:06).

Aug. 16

• Dark current 84 $\mu$A @ 2.2 MW (16:10).

Aug. 17

• Dark current 116 $\mu$A @ 2.2 MW (07:30).
• Dark current 86 $\mu$A @ 2.2 MW (23:48).

Aug. 18

• Dark current 81 $\mu$A @ 2.2 MW (07:30).
• Dark current 106 $\mu$A @ 2.2 MW (21:21).

Aug. 19

• Dark current 127 $\mu$A @ 2.2 MW (15:20).

Aug. 20

• Dark current 100 $\mu$A @ 2.2 MW (05:40).
• Dark current 105 $\mu$A @ 2.2 MW (16:35).

Aug. 21

• Dark current 135 $\mu$A @ 2.2 MW (22:15).

Aug. 22

• Gun rf pulse shortened to 155 $\mu$s from 185 $\mu$s.

Aug. 23

• Dark current 145 $\mu$A @ 2.2 MW (23:15).

Aug. 24

• Dark current 308 $\mu$A @ 2.2 MW (08:18).
• Dark current 312 $\mu$A @ 2.2 MW (15:18).
• Dark current 205 $\mu$A @ 2.2 MW (23:38).

Aug. 25

• Dark current 147 $\mu$A @ 2.2 MW (12:37).
• Cathode can not be inserted in the gun. It stops 5 mm before complete insertion. The gun has to be opened. The gun poistion has been surveyed.

Aug. 30

• Gun opened. The cathode can not be inserted in the spring also by hand. The flange has been modified (reduced nose length) and the gun closed again.