ELOG E142

Instructions to start and stop NTCAP

Attached are the instructions to start and stop data taking using the NTCAP.

154

Fri Apr 8 09:13:38 2022

Ragan, Danyal

Accelerator

No beam

Cathode is being changed at the ion source. So no beam for the moment.

Sergey has been contacted to change from two ion bunches to a single ion bunch in the ESR.

151

Fri Apr 8 06:53:29 2022

NTCAP data taking

NTCAP is taking data since 07.04.2022 23:53:47

Carrier Frequency: 242.2 M
IQ Rate (S/s): 10 M
Reference level (dBm): -30

SC_2022-04-07_23-53-47
\IQ_2022-04-07_23-53-47

155

Fri Apr 8 09:32:32 2022

NTCAP stopped

Since there is no beam, NTCAP is stopped.

Carrier Frequency: 242.2 M
IQ Rate (S/s): 10 M
Reference level (dBm): -30

SC_2022-04-07_23-53-47
\IQ_2022-04-07_23-53-47

157

Fri Apr 8 09:39:04 2022

NTCAP started

Carrier Frequency: 242.2 M
IQ Rate (S/s): 10 M
Reference level (dBm): -30

SC_2022-04-08_09-39-33
\IQ_2022-04-08_09-39-33

161

Fri Apr 8 12:04:13 2022

NTCAP started

NTCAP is started for the data taking.

Carrier Frequency: 242.02 M
IQ Rate (S/s): 10 M
Reference level (dBm): -30

SC_2022-04-08_12-04-28
\IQ_2022-04-08_12-03-50

218

Tue Apr 12 14:11:52 2022

Detectors

Sideband in Schottky

> Sometimes we see a broad sideband at lesser Schottky frequencies to the high-intensity thorium beam.
> 
> Pic 1 shows the relative broad sideband on the left.
> 
> Pic 2 depicts the vanishing of the sideband after ~1-2 minutes.


These are not the sidebands. Maybe some short-lived fragments survive even after the scrapers are used?

128

Thu Apr 7 05:44:40 2022

Pierre-Michel, Ragan

Paul, Konstantin, Sarper, David

NTCAP settings

Carrier Frequency: 244M
IQ Rate: 10M
reference Level: -30
RF - Attenuation: 40
IF - Attenuation: 19.9288

Masterpath p:\E142\sc
Masterpath p:\E142\IQ

Display: No Display

NTCAP data-taking is stopped at 5:44.

IQ_2022-04-07_02-40-05
SC_2022-04-07_02-40-05

210

Mon Apr 11 14:45:11 2022

Afternoon shift runs 11.04

We continue scan the new wavelength scan range is 322.41 - 322.00 nm

Time	SIS-intensity	cooler-HV	LMD-DAQ1 file nr	LMD-DAQ2 file nr	scan range(nm)	step width(nm)	dwell time(s)	particles counted	comments
14:45	1.9e9	209618	0189	7924	322.41 - 322.00	0.002	5s	9100
18:54	1.83e9	209616	0191	7926	322.41 - 322.00	0.002	5s	7300
19:34	1.7e9	209615	0192	7927	322.41 - 322.00	0.002	5s	7110
20:13	1.8e9	20961X	0193	7928	322.41 - 322.00	0.002	5s	6730
20:53	1.8e9	209614	0194	7929	322.41 - 322.00	0.002	5s	7550	During the scan the ecooler voltage changed to approximately 209613
21:43	1.7e9	209614	0195	7931	322.41 - 322.00	0.002	5s	7000
22:30	1.6e9	209612	0197	7932	322.41 - 322.00	0.002	5s	7300
23:10	1.4e9	209614	0198	7933	322.41 - 322.00	0.002	5s	6100	For this measurement, ESR_Ring went red, we realized only after completing the measurement. The sections went red are Dipole Correction Points (GE01KP17-18-19-20, 4 in total) @~23:45 and fixed @01:35...
01:52	1.6e9	209614	0199	7934	322.41 - 322.00	0.002	5s	7151
02:32	1.7e9	209616	0200	7935	322.41 - 322.00	0.002	5s	8368
03:22	1.8e9	209617	0201	7936	322.41 - 322.00	0.002	5s	7005
04:01	1.9e9	209616	0202	7937	322.41 - 322.00	0.002	5s		Ecooler voltage increased 4 volts during the run

138

Thu Apr 7 14:04:36 2022

Paul Indelicato

General

no beam until 17:00

10:10  There is a problem with the UNILAC. 
The repair will take several hours. (4 hrs?) 

14:00  We just enquired about the status and when beam could be back. 
The current estimate is 17:00.

More work on laser aligment is required. 
Estimated time: 1 hour

203

Sun Apr 10 22:47:05 2022

Patrick, Volker, Prannay, Danyal, Alexandre, Sebastian, Kristian

Runs night shift 10.04 + morning shift 11.04

These are the measurement runs of the night shift (10/11.04.).

Wavelength range is still 322.81 - 322.40 nm.

Time	SIS-intensity	cooler-HV	LMD-DAQ1 start-end	LMD-DAQ2 start-end	scan range(nm)	step width(nm)	dwell time(s)	particles counted	comments
23:05	1.75e9	209620	0165 - 0165	7901-7901	322.81 - 322.40	0.002	5s	8500
23:57	1.?e9	209620	0166 - 0166	7902-7902	322.81 - 322.40	0.002	5s	8500	The HV of PMT south was changed from 2.5kV to 3kV
00:35	1.4e9	209620	0167 - 0167	7903-7903	322.81 - 322.40	0.002	5s	4100
01:18	1.75e9	209620	0168 - 0168	7904-7904	322.81 - 322.40	0.002	5s	4400
01:58	1.4e9	209620	0169 - 0169	7905-7905	322.81 - 322.40	0.002	5s	7700	The ESR went red after this run. The on-call service was called because of some power supply failure, ETA: 45min.
04:12	1.75e9	209620	0171 - 0171	7906-7906	322.81 - 322.40	0.002	5s	7600	With the start of this run, the wavemeter, labview and the python script were restarted. The python script was slightly adjusted.
04:50	1.6e9	209620	0172 - 0172	7907-7907	322.81 - 322.40	0.002	5s	8300
05:31	1.6e9	209619	0173 - 0173	7908-7908	322.81 - 322.40	0.002	5s	8100
06:09	1.6e9	209615	0174 - 0174	7909-7909	322.81 - 322.40	0.002	5s	8000
06:52	1.8e9	209615	0175 - 0175	7910-7910	322.81 - 322.40	0.002	5s	8800	at 07:08 the cooler voltage jumped from 209615 V to 209619 V
07:30	1.9e9	209619	0176 - 0176	7911-7911	322.81 - 322.40	0.002	5s	forgotten	at 07:50 the cooler voltage jumped from 209619 to 209610 V and back again at to 209619 V
08:18	1.8e9	209619	0177 - 0177	7912-7912	322.81 - 322.40	0.002	5s	9100	08:47 the cooler voltage jumped from 209618 to 209614 V and back again at to 209618 V
08:55	1.75e9	209619	0178 - 0178	7913-7913	322.81 - 322.40	0.002	5s	8300
09:36	1.6e9	209619	0179 - 0179	7914-7914	322.81 - 322.40	0.002	5s	8194

The SIS intensity is taken directly before injection to ESR. Not the SIS peak intensity as in yesterday's table.

232

Thu Apr 14 22:44:40 2022

Patrick, Simon, Danyal, Max

Runs night shift 14./15.04.

Runs of the night shift. The wavelength range is 320.62 - 320.10 nm.

Time	SIS-intensity	cooler-HV	LMD-DAQ2 file nr	LMD-DAQ1 file nr	scan range(nm)	step width(nm)	dwell time(s)	particles counted	comments
22:38	9.5e8	209621	0305	8018	320.62 - 320.10	0.002	5s	5000	laser scan was started 1 min late
23:38	9.8e8	209622	0306	8019	320.62 - 320.10	0.002	5s	5550
00:32	1.0e9	209621	0307	8020	320.62 - 320.10	0.002	5s	4000	After ~4000 counted particles (second scan, 1:04 am) the e-cooler went off.
01:21	1.1e9	209622	0308	8021	320.62 - 320.10	0.002	5s	6700
02:12	1.2e9	209623	0309	8022	320.62 - 320.10	0.002	5s	6400
03:03	1.1e9	209624	0310	8023	320.62 - 320.10	0.002	5s	5500
03:55	1.3e9	209622	0311	8024	320.62 - 320.10	0.002	5s	7700
04:47	1.2e9	209622	0312	8025	320.62 - 320.10	0.002	5s	5300
05:36	1.2e9	209620	0313	8026	320.62 - 320.10	0.002	5s	6666
06:25	1.2e9	209619	0314	8027	320.62 - 320.10	0.002	5s	6500	change of shift crew (Danyal & Max)
07:16	1.2e9	209618	0315	8028	320.62 - 320.10	0.002	5s	5230
08:13	1.2e9	209620	0316	8029	320.62 - 320.10	0.002	5s	6600
09:04	1.1e9	209619	0317	8030	320.62 - 320.10	0.002	5s	6660
09:54	1.2e9	209619	0318	8031	320.62 - 320.10	0.002	5s	5950
10:49	1.1e9	209619	0319	8032	320.62 - 320.10	0.002	5s	6580
11:38	1.1e9	209617	0320	8033	320.62 - 320.10	0.002	5s	5380

236

Sat Apr 16 04:19:05 2022

Patrick, Simon, Alex, Sarper

Runs night + morning shifts 16.04.

Runs of the night shift 16.04. after changing the wavelength range. The new range is 320.12 - 319.859 nm. The step size was decreased from 0.002 nm to 0.001 nm.
The goal was to have the same number of scans as before (261), however, the scan range in the labview program could not be set accordingly. We decided to go with 262 scans after the first run.

Time	SIS-intensity	cooler-HV	LMD-DAQ2 file nr	LMD-DAQ1 file nr	scan range(nm)	step width(nm)	dwell time(s)	particles counted	comments
04:24	1.28e9	209616	0338	8051	320.12 - 319.86	0.001	5s	6750	This run had only 260 scans
05:18	1.20e9	209615	0339	8052	320.12 - 319.859	0.001	5s	6300	First run with 262 scans
06:09	1.36e9	209615	0340	8053	320.12 - 319.859	0.001	5s	6910	laser scan started 2 min late at 650 counts
07:03	1.24e9	209615	0341	8054	320.12 - 319.859	0.001	5s	6330
07:59	1.23e9	209615	0342	8055	320.12 - 319.859	0.001	5s	5712
08:51	1.1e9	209615	0343	8056	320.12 - 319.859	0.001	5s	4380
09:44	1.28e9	209615	0344	8057	320.12 - 319.859	0.001	5s	5135
10:39	1.25e9	209615	0345	8058	320.12 - 319.859	0.001	5s	5860
11:30	1.2e9	209615	0346	8059	320.12 - 319.859	0.001	5s	6500
12:22	1.23e9	209618	0347	8060	322.41 - 322.00	0.002	5s	5200	Laser wavelength scan range is changed to 322.41 - 322.00 nm and increment to 0.002 nm.
13:04	1.2e9	209616	0348	8061	322.41 - 322.00	0.002	5s	4411
13:50	1.2e9	209616	0349-0351	8062-8063	322.41 - 322.00	0.002	5s	10651	last scan / 10 loops ~ 3 hours of scan -- Ecooler failed, realized at 16:05 we were on loop8, laser is turned off at 16:10

Fri Apr 1 23:12:37 2022

Scraper positions "only primary beam"

Detectors

Scraper positions where there is only primary beam for detector tests. Use only one outer and one inner scraper at the same time.
Move detectors out before new beam!

outer:
GE02DD2_G: 0mm
GE01DD2AG: -10mm

inner:
GE01DD2IG: 40mm

117

Wed Apr 6 22:29:55 2022

Accelerator

ECooler voltages

ECooler voltages:

06.04:
22:30: 209676 V
00:14: 209647 V

07.04.:
00:46: 209647 V
04:06: 209648 V

118

Thu Apr 7 00:15:11 2022

Laser

Laser timing adjusted

We have adjusted the laser timing using PMT-middle. Bunching freq. is 3.90362 MHz.

PD NO: 7.79
PD SO: 43.37
mean: 25.08

PMT middle: 25.02

Delta = 0.6 bins * 3.3 ns = 0.2 ns

New injection:
PMT middle: 25.48 / 101.91
ParDet south: 74.31 / 151.31

ParDet south - PMT middle (furthest / closest distance) = 161.1 ns / 91.1 ns

120

Thu Apr 7 01:19:05 2022

Laser

Laser scanning

We did some laser scans. The wavemeter shows spikes during scans. This may be just while the frequency changes. See picture.

122

Thu Apr 7 03:06:15 2022

DAQ file sizes

The file sizes of DAQ1 (229Thor) and DAQ2 (229Th, "Carstens DAQ") are different.
During 20min of laser scanning DAQ1 saves 4 files while DAQ2 saves 2 files which was 3.3 GB and 2 GB, respecively.
The file sizes of DAQ2 should always be greater than those of DAQ1, because of extra ADC data!

The problem seems to be solved after the recabling ID: 125.

124

Thu Apr 7 03:44:21 2022