CLAS12 R1 S6 QA

HV burnin

Step 1: Set Voltage to 50 volts on all channels. Probe HVB to be sure that all sense, field, and guard wires have a voltage. (You should set current threshold to 10 microAmps on the HV supply)

Step 2: While monitoring the current, ramp the HV at a speed of 5 V/s to the following

G:F:S= 525,-700,700

Step 3: Begin to take data recording the time and sense wire current as you ramp up the sense wire HV to 1400 volts while restricting the current draw to less than 10 micraAmps. Measure the voltage and current if either changes by more than 10%.

SL2-HVB1

Guard current is typically below 0.01 microAmp

Date	Guard	Field	Sense	I_{Sense}	I_{Field}	Time
	Volts	Volts	Volts	[math]\mu[/math] A	[math]\mu[/math] A
2/20/13	525	-700	1400	0.5	0.7	22:50

SL2-HVB2

Guard current is typically below 0.01 microAmp

Date	Guard	Field	Sense	I_{Sense}	I_{Field}	Time
	Volts	Volts	Volts	[math]\mu[/math] A	[math]\mu[/math] A
2/20/13	525	-700

Sector 6 - Serial Numbers on STB & HVB
	Top Endplate		Bottom Endplate
Board # (nose=1, tail=7)	SL1 (STB)	SL2 (HVB)	SL1 (HVB)	SL2 (STB)
1	G1202270	?	?	K1202516
2	G1202266	?	?	J1202341
3	G1202273	?	?	J1202339
4	G1202275	?	?	K1201716
5	G1202271	?	?	K1201717
6	G1202274	?	?	K1201719
7	G1202272	?	?	K1202346

HV Burn-in Log
Date	Time (24h)	HV Board ID	Guard (V)	Field (V)	Sense (V)	Current (micro Amps)
02/24/13	14:00	S6 SL2 HVB1	525	-700	700	2.2
02/24/13	14:20	S6 SL2 HVB1	525	-700	1400	8.3
02/24/13	14:24	S6 SL2 HVB1	525	-700	1400	5.145
02/24/13	14:27	S6 SL2 HVB1	500	-500	500
02/24/13	14:28	S6 SL2 HVB1	500	-500	700	0
02/24/13	14:41	S6 SL2 HVB1	525	-525	525

Pre-Potting Tension Error

MYSQL commands

mysql> show databases;

+--------------------+
| Database           |
+--------------------+
| information_schema | 
| mysql              | 
| region1            | 
| test               | 
+--------------------+
4 rows in set (0.02 sec)

mysql> use region1;

Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed

mysql> show tables;

+-------------------------------+
| Tables_in_region1             |
+-------------------------------+
| R1S1_Tension_Trend_Test_Field | 
| R1S1_Tension_Trend_Test_Sense | 
| R1S4_Tension_Trend_Test_Field | 
| R1S4_Tension_Trend_Test_Sense | 
| R1S5_Tension_Trend_Test_Field | 
| R1S6_Tension_Trend_Test_Field | 
| R1S6_Tension_Trend_Test_Sense | 
| R1_SL1_S1_Field               | 
| R1_SL1_S1_Sense               | 
| R1_SL1_S4_Field               | 
| R1_SL1_S4_Sense               | 
| R1_SL1_S5_Field               | 
| R1_SL1_S6_Field               | 
| R1_SL1_S6_Sense               | 
| R1_SL2_S1_Field               | 
| R1_SL2_S1_Sense               | 
| R1_SL2_S4_Field               | 
| R1_SL2_S4_Sense               | 
| R1_SL2_S5_Field               | 
| R1_SL2_S6_Field               | 
| R1_SL2_S6_Sense               | 
| R1_particleCounts             | 
| R1_work_log                   | 
+-------------------------------+
23 rows in set (0.00 sec)

mysql> describe R1_SL1_S6_Sense;

+------------------+-------------+------+-----+-------------------+-------+
| Field            | Type        | Null | Key | Default           | Extra |
+------------------+-------------+------+-----+-------------------+-------+
| iCol             | int(11)     | NO   |     | NULL              |       | 
| iRow             | int(11)     | NO   |     | NULL              |       | 
| PeriodMeasured   | float       | YES  |     | NULL              |       | 
| Result           | varchar(32) | YES  |     | NULL              |       | 
| TensionMeasured  | float       | YES  |     | NULL              |       | 
| CalculatedPeriod | float       | YES  |     | NULL              |       | 
| SuperLayer       | int(11)     | NO   |     | NULL              |       | 
| Length           | float       | YES  |     | NULL              |       | 
| FreqMeasured     | float       | YES  |     | NULL              |       | 
| TensionError     | float       | YES  |     | NULL              |       | 
| TestLogic        | int(11)     | NO   |     | NULL              |       | 
| CalcFreq         | float       | YES  |     | NULL              |       | 
| HighCut          | float       | YES  |     | NULL              |       | 
| LowCut           | float       | YES  |     | NULL              |       | 
| Sector           | int(11)     | NO   |     | NULL              |       | 
| Date             | varchar(32) | YES  |     | NULL              |       | 
| Mod_time         | timestamp   | NO   |     | CURRENT_TIMESTAMP |       | 
+------------------+-------------+------+-----+-------------------+-------+
17 rows in set (0.04 sec)

mysql> select TensionError from R1_SL1_S6_Sense INTO OUTFILE '/tmp/R1SL1S6Sense.dat';