Difference between revisions of "R5718-5716 Ba133Analysis"
Jump to navigation
Jump to search
| Line 6: | Line 6: | ||
Ba-133 undergoes electron capture to Cs-133. 86% of the time it ends up in the 1/2+ , 437 keV excited state of Cs-133. | Ba-133 undergoes electron capture to Cs-133. 86% of the time it ends up in the 1/2+ , 437 keV excited state of Cs-133. | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | 383.8480(12) | + | |
| + | |||
| + | {| border="1" |cellpadding="20" cellspacing="0 | ||
| + | |- | ||
| + | | Energy(keV) || Intensity(rel) | ||
| + | |- | ||
| + | | 53.1625( 6) ||2.199(22) | ||
| + | |- | ||
| + | | 79.6139(13) || 2.62( 6) | ||
| + | |- | ||
| + | | 80.9971(12) || 34.06(27) | ||
| + | |- | ||
| + | | 160.6109(17) || 0.645( 8) | ||
| + | |- | ||
| + | | 223.2373(14) || 0.450( 4) | ||
| + | |- | ||
| + | | 276.3997(13) || 7.164(22) | ||
| + | |- | ||
| + | | 302.8510( 6) || 18.33( 6) | ||
| + | |- | ||
| + | | 356.0134( 6) || 62.05(19) | ||
| + | |- | ||
| + | | 383.8480(12) || 8.94( 3) | ||
| + | |- | ||
| + | |} | ||
=Coincidence lines for Ba-133= | =Coincidence lines for Ba-133= | ||
Revision as of 18:03, 20 August 2013
Ba-133 source lines
Ba-133 undergoes electron capture to Cs-133. 86% of the time it ends up in the 1/2+ , 437 keV excited state of Cs-133.
| Energy(keV) | Intensity(rel) |
| 53.1625( 6) | 2.199(22) |
| 79.6139(13) | 2.62( 6) |
| 80.9971(12) | 34.06(27) |
| 160.6109(17) | 0.645( 8) |
| 223.2373(14) | 0.450( 4) |
| 276.3997(13) | 7.164(22) |
| 302.8510( 6) | 18.33( 6) |
| 356.0134( 6) | 62.05(19) |
| 383.8480(12) | 8.94( 3) |
Coincidence lines for Ba-133
- 276 && 306 keV lines http://www.nndc.bnl.gov/nsr/nsrlink.jsp?1995JU02
- Ba-132 83 && 360 http://www.nndc.bnl.gov/nsr/nsrlink.jsp?1996KU01 http://www.nndc.bnl.gov/nsr/nsrlink.jsp?2002GA01
- Ba-132 383 && 515 http://www.nndc.bnl.gov/nsr/nsrlink.jsp?1975GI11
Run list
| Run | Description | |
| 5716 | Coincidences for Ba-133 10 uCi source. The CFD widths were 10 nsec making the coincidence window 20 nsec. running time 7 hrs , 33 min, 14sec. Rate was 1 Hz | |
| 5718 | Logic Unit in OR mode for Ba-133 10 uCi source. The CFD widths were 10 nsec making the coincidence window 20 nsec. running time 2 min, 5 sec. Rate was 4 kHz |
Singles Run 5718 Analsysis
Photons from the source
ntuple->Draw("(ADC5-62.1537)/2.82207 >>(4096,0,4096)")
ntuple->Draw("(ADC9-39.8)/2.61747 >>(4096,0,4096)")
Did not observe the 53,79,160, 223, lines
| Photon Energy (keV) | Description |
| 82 | Strong, probably the 80.9971 line from the 5/2+ to 7/2+ Cs-133 transition |
| 277 | Medium, probably the 276.3997 line from the 1/2+(437 keV) to the 5/2+ (161 keV) Cs-133 transition |
| 303 | Medium, probably the 302.8510 line from the 3/2+(383 keV) to 5/2+ (81 keV) Cs-133 transition |
| 356 | Strong, likely the 356.0134 line from the 1/2+(437 keV) to 5/2+ (81 keV) Cs-133 transition |
| 384 | Medium, likely the 383.8480 line from the 3/2+ (383 keV) excited state of Cs-133 to the ground state |
| 510 | Weak |
| 584 | |
| 609 | |
| 913 | |
| 970 | |
| 913 | |
| 970 | |
| 911 | |
| 970 | |
| 1121 | |
| 1277 | |
| 1417 |
Coincidence Run 5716 Analysis
The 83, 276, 302, and 356 lines are are observed when a 200 nsec coincidence window is required.
276.3997(13) 7.164(22)
302.8510( 6) 18.33( 6) 356.0134( 6) 62.05(19)