ELOG AIDA

AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40

AIDA

Fields marked with * are required

Entry time:

Thu Dec 1 00:21:08 2016

Author*:

Subject*:

Checking that the implantation is still reasonable after LN2 fill recovery.&nbsp;

Degrader condition is 8. + 0.2 mm Al on the upstream side of the PE wall.

All three variable degraders are in (0.5 mm W; 0.3 mm W; 1.0 mm W, each on 1 mm Al backing).&nbsp;

Confirmed degrader settings at 10.11 (right before a change was made after this run...)

&nbsp;*** data items: &nbsp;261088000 ( 125355.46 Hz) 
&nbsp;*** ADC events: &nbsp; 32885891 ( &nbsp;15789.41 Hz) 
&nbsp;*** time warps: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;0 ( &nbsp; &nbsp; &nbsp;0.00 Hz) 
&nbsp;*** DSSSD # 1 count: &nbsp; 5369750 old count: &nbsp; 5351200 dt: &nbsp; &nbsp;283.23 s &nbsp;LEC rate: &nbsp;18958.97 Hz 
&nbsp;*** DSSSD # 2 count: &nbsp; 4958223 old count: &nbsp; 4941299 dt: &nbsp; &nbsp;283.23 s &nbsp;LEC rate: &nbsp;17505.99 Hz 
&nbsp;*** DSSSD # 3 count: &nbsp; 2872405 old count: &nbsp; 2862650 dt: &nbsp; &nbsp;283.23 s &nbsp;LEC rate: &nbsp;10141.59 Hz 
&nbsp;*** DSSSD # 4 count: &nbsp; 2367926 old count: &nbsp; 2359880 dt: &nbsp; &nbsp;283.23 s &nbsp;LEC rate: &nbsp; 8360.43 Hz 
&nbsp;*** DSSSD # 5 count: &nbsp; 2063809 old count: &nbsp; 2056797 dt: &nbsp; &nbsp;283.23 s &nbsp;LEC rate: &nbsp; 7286.69 Hz 
&nbsp;*** DSSSD # 6 count: &nbsp; 3582944 old count: &nbsp; 3570809 dt: &nbsp; &nbsp;283.23 s &nbsp;LEC rate: &nbsp;12650.29 Hz 
&nbsp;*** DSSSD # 1 count: &nbsp; &nbsp; &nbsp; &nbsp;61 old count: &nbsp; &nbsp; &nbsp; &nbsp;61 dt: &nbsp; &nbsp;283.23 s &nbsp;HEC rate: &nbsp; &nbsp; &nbsp;0.22 Hz 
&nbsp;*** DSSSD # 2 count: &nbsp; &nbsp; &nbsp; &nbsp;82 old count: &nbsp; &nbsp; &nbsp; &nbsp;82 dt: &nbsp; &nbsp;283.23 s &nbsp;HEC rate: &nbsp; &nbsp; &nbsp;0.29 Hz 
&nbsp;*** DSSSD # 3 count: &nbsp; &nbsp; &nbsp; 111 old count: &nbsp; &nbsp; &nbsp; 111 dt: &nbsp; &nbsp;283.23 s &nbsp;HEC rate: &nbsp; &nbsp; &nbsp;0.39 Hz 
&nbsp;*** DSSSD # 4 count: &nbsp; &nbsp; &nbsp; &nbsp;71 old count: &nbsp; &nbsp; &nbsp; &nbsp;71 dt: &nbsp; &nbsp;283.23 s &nbsp;HEC rate: &nbsp; &nbsp; &nbsp;0.25 Hz 
&nbsp;*** DSSSD # 5 count: &nbsp; &nbsp; &nbsp; &nbsp;42 old count: &nbsp; &nbsp; &nbsp; &nbsp;42 dt: &nbsp; &nbsp;283.23 s &nbsp;HEC rate: &nbsp; &nbsp; &nbsp;0.15 Hz 
&nbsp;*** DSSSD # 6 count: &nbsp; &nbsp; &nbsp; &nbsp; 9 old count: &nbsp; &nbsp; &nbsp; &nbsp; 9 dt: &nbsp; &nbsp;283.23 s &nbsp;HEC rate: &nbsp; &nbsp; &nbsp;0.03 Hz

&nbsp;*** ENTRY finish ends

S O R T &nbsp; &nbsp;S T O P P E D ..... Thu Dec &nbsp;1 09:11:23 2016

&nbsp;

See attached histograms 
&nbsp;

Figure 5 shows low energy front and back, and if I compare to R41_2 offline analysis (i.e. https://elog.ph.ed.ac.uk/AIDA/507 ) then we see more fluctuation (of light ions?) it seems. Run 41_2 seems to show mostly noise (anti correlation) and here we see real ions (positive correlation.&nbsp; This is confirmed in our figure 4, where the statistics of DSSD#3 seems about doubled.&nbsp; The event rate per unit time in 41_2 shows a relatively flat top behavior characteristic of noise domination, where as our present one shows more jitter that could be characterized by light ion production and transport variation.

&nbsp;

Encoding: HTML ELCode plain
Suppress Email notification Resubmit as new entry

Attachment 1: