cf3br data handeling agust,heima,....cf3br/sept-10/pxp-150910ak.pxp :...

CF3Br

Data handeling

agust,heima, ....CF3Br/Sept-10/PXP-150910ak.pxp:agust,heima, ....CF3Br/Sept-10/XLS-150910ak.xlsagust, www,......cf3br/PPT-150910ak.ppt

CF3Br

date range comment: ÁK frá Kára

hv(L, start) hv(L,stop) 2hv(start) 2hv(stop) comment:

90910 20900 20950 83600 83800

90910 20950 21000 83800 84000

100910 20950 20957 83800 83828 Br atom line

100910 20890 20897 83560 83588 Br atom line

100910 20840 20847 83360 83388 Br atom line

100910 20450 20480 81800 81920

130910 20560 20610 82240 82440 mass peaks drift during scan

KS: On that day, 13.09.10, we were having troubles with the peaks shifting back and forth and I fear that the laser

130910-2 20560 20610 82240 82440 repeated; no drift of mass peakspower was not being monitored properly. None of the measurements were really adequate.

130910 20600 20650 82400 82600 mass peaks drift during scan P stabílt

130910-2 20600 20650 82400 82600 repeated; slight drift of mass peaks P stabílt

130910 20610 20560 82440 82240does not scan as high masses asCF3 and Br+; slight drift of mass peaks

130910 20650 20600 82600 82400 slight drift of mass peaks ?

140910 20640 20690 82560 82760 drift of mass peaks P stabílt

140910 20650 20600 82600 82400 ?

140910 20680 20730 82720 82920 only slight drift of mass peaks P stabílt

140910 20720 20770 82880 83080 bad! Large drift of mass peaks P stabílt

140910 20760 20770 83040 83080 w(?)

150910 20720 20770 82880 83080

150910 20760 20810 83040 83240 P Stabílt

150910 20800 20850 83200 83400 P0=8.5 mJ, Pe=5.5 mJ

150910 20840 20890 83360 83560 P0=7.5mJ; Pe= 6.5 mJ

150910 20850 20830 83400 83320 P0=7 mJ, Pe=7.5 mJ

150910 20890 20910 83560 83640 Stabílt

agust,heima, ....CF3Br/Sept-10/XLS-150910ak.xls Updated: 190910

84.0083.7583.5083.2583.0082.7582.5082.2582.00x10

3

Date / time of record

15.09

09.09

2hv / cm-1

Scan regions:

agust,heima, ....CF3Br/Sept-10/XLS-150910ak.pxp Updated: 170910

Start

Stop

10.09

13.09

14.09

20

15

10

5

0

84.0083.7583.5083.2583.0082.7582.5082.2582.00x10

3

agust,heima, ....CF3Br/Sept-10/XLS-150910ak.pxp, Layout: 0, Graph:0, Table: 0 Updated: 170910

Br lines (Br**(2S+1XJ )<-<- Br*(2P1/2)

Br lines

See slide 5

ath20560-20610

550

540

530

520

510

500

490

x103

81.9281.9081.8881.8681.8481.8281.80x10

3 2hv = 4 x hv(Laser) / cm-1

Int

Integrated intensity of iBr+ signal vs 2hvNB! 1)Not corrected for Laser power2) Includes “offset-bgr”

agust, heima, ...CF3Br/PXP-100910ak.pxp (IGOR file), Layout: 6, Graph: 10

1D-REMPI

CF3Br; 100910akWave129 (81903.32 cm-1)Data file: 20450_20480

Updated: 170910

Br**(4P5/2 )<-<- Br*(2P1/2)

Br**(4P3/2 )<-<- Br*(2P1/2)

20.61

20.60

20.59

20.58

20.57

20.56

x103

80706050403020

Data 20560-20610 (130910), 2D-REMPI:hv

(Las

er)

Mw

agust, heima, ...CF3Br/PXP-170910ak.pxp (IGOR file), Layout: 0, Graph: 0 Updated: 170910

20.61

20.60

20.59

20.58

20.57

20.56

x103

8280787674727068

hv(L

aser

)

MwCF3+

iBr+

Data 20560-20610 (130910), 2D-REMPI::

Updated: 170910agust, heima, ...CF3Br/PXP-170910ak.pxp (IGOR file), Layout: 0, Graph: 0

Clearly somBr+ signal

150

100

50

0

x103

82.4082.3582.3082.25x10

3

Data 20560-20610 (130910), 1D-REMPI :


CF3+

2hv / cm-1

400

300

200

100

0

x103

82.4082.3582.3082.25x10

3

iBr+; i=79,81

Data 20560-20610 (130910), 1D-REMPI :

Updated: 170910agust, heima, ...CF3Br/PXP-170910ak.pxp (IGOR file), Layout3, Graph: 9

2hv / cm-1

Br**(4D3/2 )<-<- Br*(2P1/2)

82.40

82.35

82.30

82.25

x103

80604020

Data 20560-20610-2 (130910), 2D-REMPI::

2hv

Mw

agust, heima, ...CF3Br/PXP-170910aka.pxp (IGOR file), Layout: 0, Graph: 3 Updated: 170910

25

20

15

10

5

0

x103

82.4082.3582.3082.25x10

3

Data 20560-20610-2 (130910), 1D-REMPI :

Updated: 170910agust, heima, ...CF3Br/PXP-170910aka.pxp (IGOR file), Layout: 1, Graph: 5

CF3+

2hv / cm-1

80

60

40

20

0

x103

82.4082.3582.3082.25x10

3

iBr+; i=79,81

Data 20560-20610-2 (130910), 1D-REMPI :

Updated: 170910agust, heima, ...CF3Br/PXP-170910aka.pxp (IGOR file), Layout2, Graph: 7

2hv / cm-1

Br**(4D3/2 )<-<- Br*(2P1/2)

•There is inconsistancy in terms of the intensity of CF3 vs 2hv for the datafiles 20560-20610 and 20560-20610-2 (see slides 8 and 11)

82.60

82.55

82.50

82.45

82.40

x103

80706050403020

Data 20600-20650 (130910), 2D-REMPI::

2hv

Mw

agust, heima, ...CF3Br/PXP-170910akb.pxp (IGOR file), Layout: 1, Graph: 3 Updated: 170910

Is CF2+ (50 amu) changing wih 2hv? Let´s check

140

120

100

80

60

40

20

0

x103

82.5582.5082.4582.40x10

3

Data 20600-20650 (130910), 1D-REMPI :

Updated: 170910agust, heima, ...CF3Br/PXP-170910akb.pxp (IGOR file), Layout: 0, Graph: 5

CF3+

2hv / cm-1

82.60

82.55

82.50

82.45

82.40

x103

706050403020

Data 20600-20650-2 (130910), 2D-REMPI::

2hv

Mw

agust, heima, ...CF3Br/PXP-170910akc.pxp (IGOR file), Layout: 0, Graph: 2 Updated: 170910

25

20

15

10

5

0

x103

82.5582.5082.4582.40x10

3

Data 20600-20650-2 (130910), 1D-REMPI :

Updated: 170910agust, heima, ...CF3Br/PXP-170910akc.pxp (IGOR file), Layout: 1, Graph: 4

CF3+

2hv / cm-1

•There is a consistant drop in the intensity of CF3 vs 2hv for the datafiles 20600-20650 and 20600-20650-2 (see slides 15 and 17)

160

140

120

100

80

60

40

20

0

x103

82.6082.5582.5082.4582.40x10

3

Data 20650-20600 (130910), 1D-REMPI :

Updated: 170910agust, heima, ...CF3Br/PXP-170910akd.pxp (IGOR file), Layout: 0, Graph: 4

CF3+

2hv / cm-1

•Now it is constant (slide 19)!

•This is inconsistant with the intensity of CF3 vs 2hv for the datafiles 20600-20650 and 20600-20650-2 (see slides 15 and 17)

•It might be worth comparing the CF3+ spectra with som impurity signals (C2+)..as a reference to see if analogous behaviour is seen for these.

•Kári (e-mail, 180910):

On that day, 13.09.10, we were having troubles with the peaks shifting back and forth and I fear that the laser power was not being monitored properly. None of the measurements were really adequate.

Now, these measurements over the region 20560-20650 might need to be redone in order to solve this inconsistency, but_ I suspect that the shifting of the peaks goes hand in hand with lower laser power._ And since the laser power wasn't being correctly monitored, a correction for the data can not be made.

I remember being unsatisfied with the first measurement (20560-20610) due to shifting but continued with the next measurement (20600-20650) to see if the problem would solve itself, it of course did not. The region was then scanned back and forth with no progress until we were told to "ignore" the shift so we measured the regions again (20560-20610_2 & 20600-20650_2).

But on the next day 14.09.10 we also measured 20650-20600 and there you have constant CF intensity vs 2hv. The measurement was much more stable after Wang had tuned the instruments a bit.

Updated: 180910

15

10

5

0

x103

82.6082.5582.5082.4582.40x10

3

Data 20650-20600 (140910), 1D-REMPI (not corrected for laser power):


CF3+

2hv / cm-1

14

12

10

x103

5204804404003603202802402001601208040

Data 20650-20600 (140910), Mass spectrum (wave157) :

Mw


CF381Br

150 amu largest mass expected

Unnecessary long scan!!!!!

82.75

82.70

82.65

82.60

x103

76726864605652484440363228242016128

Data 20640-20690 (140910), 2D-REMPI::

2hv

Mw

agust, heima, ...CF3Br/PXP-190910ak.pxp (IGOR file), Layout: 0, Graph: 2 Updated: 190910

16

14

12

10

8

6

4

2

0

x103

82.7582.7082.6582.60x10

3



CF3+

2hv / cm-1

82.90

82.85

82.80

82.75

x103

726864605652484440363228242016128

Data 20680-20730 (140910; P Stable), 2D-REMPI::

2hv

Mw

agust, heima, ...CF3Br/PXP-190910aka.pxp (IGOR file), Layout: 0, Graph: 2; Table:2(rempi1) Updated: 190910

12

10

8

6

4

2

0

x103

82.9082.8582.8082.75x10

3



CF3+

2hv / cm-1

83.05

83.00

82.95

82.90

x103

605652484440363228242016128

Data 20720-20770-bad (140910; P stable), 2D-REMPI::

2hv

Mw

agust, heima, ...CF3Br/PXP-190910aka.pxp (IGOR file), Layout: 2, Graph: 7; Table:4(rempi2) Updated: 190910

NB: scale is incorrect

8000

6000

4000

2000

0

83.0583.0082.9582.90x10

3

Data 20720-20770-bad (140910), 1D-REMPI (not corrected for laser power):


CF3+

2hv / cm-1

83.05

83.00

82.95

82.90

x103

686460565248444036322824201612

Data 20720-20770 (150910; P stable), 2D-REMPI::

2hv

Mw

agust, heima, ...CF3Br/PXP-190910akb.pxp (IGOR file), Layout: 0, Graph: 2; Table:2(rempi1) Updated: 190910

80

60

40

20

0

x103

83.0583.0082.9582.90x10

3



CF3+

2hv / cm-1

12

10

8

6

4

2

0

x10

3

83.0583.0082.9582.90x10

3



2hv / cm-1

Impurity: C2+

30

25

20

15

10

5

0

x10

3

83.0583.0082.9582.90x10

3



2hv / cm-1

Impurity: C+

Not possible to make a contour map of Data file 20760-20810;

Y –axis resolution is low(?)

NB: CF3+ signal shows intensity vs 2hv behavious whichDiffers from that of impurity signals (C+ and C2+)

80

60

40

20

0

x103

83.2083.1583.1083.05x10

3


Updated: 190910agust, heima, ...CF3Br/PXP-190910akc.pxp (IGOR file), Layout: 0, Graph: 3

CF3+

2hv / cm-1

•It seems to be that the CF3+ signal relative to the impurity signal varies between scans:

See:PXP-180919ak.pxpPXP-190919aki.pxp; i = ,a,b,c


Data 20650-20600 (140910), Mass spectrum (wave0 – 251) :

Mw


Data 20720-20770 (150910),Mass spectrum (wave0 –249):

Mw

83.40

83.35

83.30

83.25

83.20

x103

88848076726864605652484440363228242016128

Data 20800-20850 (150910), 2D-REMPI::

2hv

Mw

agust, heima, ...CF3Br/PXP-190910akd.pxp (IGOR file), Layout: 0, Graph: 3; Table:2(rempi1) Updated: 190910

?

50

40

30

20

10

x103

908070605040302010

Data 20800-20850 (150910), Mass spectrum (wave220) :

Mw


?

iBr+

CF3+

800

600

400

200

0

x103

83.3583.3083.2583.20x10

3



2hv / cm-1

79Br+83376.37

Br**(2F5/2 )<-<- Br*(2P1/2)

40

30

20

10

0

x103

83.3583.3083.2583.20x10

3



CF3+

2hv / cm-1

NB!: laser power decreases as:P0=8.5 mJ, Pe=5.5 mJ(see slide 2)

15

10

5

0

x10

3

83.3583.3083.2583.20x10

3



2hv / cm-1

UnknownMass: 83-84! 83376.37 cm-1

The wavenumber value tells us that this is a bromine atom (2+1)REMPI signal; the unusual TOF (mass) value suggests that thisis a delayd Br atom signal. But is this 81Br+?Where is 79Br+

Most probably this is electronic oscillationeffect(??)...but WHY?

12

10

8

6

4

2

0

x10

3

83.3583.3083.2583.20x10

3



2hv / cm-1


C2+; impurity

40

30

20

10

x10

3

83.3583.3083.2583.20x10

3



2hv / cm-1


C2+; impurity

CF3+

83.55

83.50

83.45

83.40

x10

3

80604020

Data 20840-20890 (150910), 2D-REMPI::

2hv

Mw

agust, heima, ...CF3Br/PXP-190910ake.pxp (IGOR file), Layout: 0, Graph: 3; Table:2(rempi1) Updated: 190910

?

2.0

1.5

1.0

0.5

0.0

x10

6

83.5583.5083.4583.40x10

3


Updated: 190910agust, heima, ...CF3Br/PXP-190910ake.pxp (IGOR file), Layout: 1, Graph: 5

2hv / cm-1

79Br+83376.37

Br**(2F5/2 )<-<- Br*(2P1/2)

40

30

20

10

0

x10

3

83.5583.5083.4583.40x10

3


Updated: 190910agust, heima, ...CF3Br/PXP-190910ake.pxp (IGOR file), Layout: 2, Graph: 7

CF3+

2hv / cm-1

NB!: laser power decreases as:P0=7.5mJ; Pe= 6.5 mJ(see slide 2)

cf3br data handeling agust,heima,....cf3br/sept-10/pxp-150910ak.pxp :...

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