An Attempt to Identify the ‘Unknown’-Flagged keV Decay Energies in the Lichen Sample Gammaspectroscopy

As already shared in previous posts, I have made all raw data publicly available and invite experts to scrutinize it for signs of anything unusual:

This builds upon the July 6, 2015 post,  “Gamma-Spectroscopy Results of Colorado Radioactive Freak Rain: Fukushima’s Fissioning Mini-Sun on the Edge of the Pacific Ocean is COMPLETELY OUT OF CONTROL” to which I added a nuance and invite comments to help me better interpret the data.

In the Raw Data of the Lichen Sample, there’s a long list again of decay energies that were picked up from the sample that were flagged, ‘UNKNOWN‘.   I researched for references to those peculiar energy levels in keV (kilo-electron-Volt):

From top to bottom, I’ll share what I found.  These identification could, of course, be wrong.  Disclaimer:  I’m just learning as I go.

[— Extra note added, July 18, 2015:  I may I have jumped the gun on stating that ALL the listed radioisotopes in that Colorado Radioactive Freak Rain’ lab analysis where actually present in the rain sample.   It is quite likely traces of many if not most were present, but the uncertainty is too great for some to say this with conviction.

As for the ‘UNKNOWNS’ below, the lack of additional energy peaks corresponding with the listed radioisotopes makes the likelihood that these energy peaks truly corresponded with those radioisotopes highly uncertain.  —]

I’m told it takes more than just a perfectly matching keV level to identify these, but I don’t understand yet what precisely that is.  After all, this is only from a 1000 minute (16 hour) scan, so various other decay modes would have been picked up if the sample had been tested for múch longer weren’t.  With more sensitive equipment, or if Beta spectroscopy had been part of the tests as well, much more solid data could have been arrived at.  See also comments under Colorado Radioactive Freak Rain’.

These are the mystery detections:

  • 46.40  keV  …
  • 74.78  keV  …
  • 77.06  keV  …
  • 84.13   keV  …
  • 87.17   keV  …
  • 89.89   keV  …
  • 94.14   keV  …
  • 129.02   keV  …
  • 154.08   keV  …
  • 209.34   keV  …
  • 233.28   keV  …
  • 241.75   keV  …
  • 245.45   keV  …
  • 270.55   keV  …
  • 328.26   keV  …
  • 670.63   keV  …
  • 748.18   keV  …
  • 769.19   keV  …
  • 840.69   keV  …
  • 935.47   keV  …
  • 965.51   keV  …
  • 1378.50   keV  …
  • 1765.12  keV  …

This is what I came up with researching them:

  • 46.40  keV  —> Californium-253  (Cf-253)

SOURCES:

http://atom.kaeri.re.kr/cgi-bin/decay?Cf-253+B-

http://periodictable.com/Isotopes/098.253/index2.full.prod.html

  • 74.78  keV    —> Rhodium-100  (intermediate decay state Rh-100m2 )

SOURCES:

https://en.wikipedia.org/wiki/Isotopes_of_rhodium

http://periodictable.com/Isotopes/045.100/index2.full.prod.html

  • 77.06  keV    —>  Antimony-122 (intermediate decay state Sb-122m)

Because 76.0595 keV sure rounds nicely to 77.06 keV

Sources:

http://ie.lbl.gov/toi/Gamma.asp?sql=&Min=76&Max=78

https://en.wikipedia.org/wiki/Isotopes_of_antimony

http://crete.homeip.net/show_nuclide/510422/

https://carlwillis.wordpress.com/tag/neutron-activation/

http://www.ne.ncsu.edu/nrp/irrad.html

Again… that neutron activation weirdness.  What’s up with that?  See also the mention of Sb-122 in http://www.hiroshimasyndrome.com/fukushima-and-cesium.html 

To quote, “[…] Relatively few of the bomb fallout isotopes come from nuclear fission. In fact, most radioactive materials in a bomb’s fallout are cause by the process called “neutron activation”. Neutrons are the only type of radiation that can make other atoms radioactive. The soils, buildings, and other materials pulverized by a bomb’s explosion are instantly engulfed in the neutron field caused by the detonation, making radioactive isotopes from those elements that were not radioactive before the blast. Some of the prominent bomb-fallout isotopes are Sodium-24, Chromium-51, Manganese-54, Iron-59, Cobalt-60, Copper-64, Antimony-122 and 124, Tantalum-180 and 182, and Lead-203.(1) The half-lives vary from as low as 8 hours (Ta-180) and as long as 5.3 years (Co-60).   Just for the record, a small amount of Carbon-14 is formed by the bomb, but its quantity is miniscule. Regardless, none of the bomb-fallout isotopes listed above are produced by power plant reactors.  By comparison, bomb-spawned Cs-137 is literally a trace relative to the volumes of the above-listed bomb fallout isotopes. […]”    Um… What the hell…

See perhaps also other activation products listed at https://en.wikipedia.org/wiki/Activation_product, maybe ponder some irrelevant stuff that really should have nothing to do with Fukushima, like https://en.wikipedia.org/wiki/Fast-neutron_reactor?  And if you really want to go all-out tin-foil-hatted, have at it:  Pursue the investigative rabbit hole that makes you wonder if http://rense.com/general96/subcult2.html wasn’t so nuts after all…   But never mind my attempt of dropping a hint why maybe-just-maybe Japan might have denied practically all international nuclear expertise assistance in the beginning of the disaster, and then passed its Orwellian State Secrets Act in its aftermath… .  (And then there’s stuff like https://truthnewsinternational.wordpress.com/2014/01/18/magna-bsp-the-israeli-connection-to-311-terrorism-at-fukushima/ which I also don’t know what to think about.)

I didn’t write this last paragraph.  And you didn’t read it.  “Right?”

  • 84.13   keV    —>  Thorium-231  (Th-231)  ?

SOURCES:

http://webwiser.nlm.nih.gov/getSubstanceData.do?substanceId=424&displaySubstanceName=Uranium%20Radioactive&STCCID=49%20273%2037&UNNAID=&selectedDataMenuItemID=44

http://www.elibrary.dep.state.pa.us/dsweb/Get/Document-104178/2013%20R%201160%2005.31.13.pdf

http://periodictable.com/Isotopes/090.231/index2.full.prod.html

  • 87.17   keV    —>  Palladium-115  (Pd-115)

SOURCES:

http://ie.lbl.gov/toi/nuclide.asp?iZA=460115

http://www.periodictable.com/Isotopes/050.115/index3.full.html

So short-lived, it makes no sense to even detect it…

  • 89.89   keV   —>  Argon-32  (Ar-32)

SOURCES:

http://ie.lbl.gov/toi/nuclide.asp?iZA=180032

http://periodictable.com/Isotopes/018.40/index2.full.prod.html

So short-lived, it makes no sense to even detect it…

  • 94.14   keV    —>  ?
  • 129.02   keV   —>   ?

Perhaps 129.04 keV –> from  Thorium-229 (Th-229) ?

SOURCES:

http://ie.lbl.gov/decay/t1.pdf

http://periodictable.com/Isotopes/090.229/index2.full.prod.html

  • 154.08   keV    —> Tantalum-181    (Ta-181)

Neutron activated Tantalum ?

SOURCES:

 Gamma rays from capture of thermal neutrons by Ta-181 (which is stable)

https://www-nds.iaea.org/pgaa/PGAAdatabase/LANL/isotopic/73ta181

http://periodictable.com/Isotopes/073.181/index.full.prod.html

  • 209.34   keV    —>  Actinium-228  ( Ac-228)

SOURCES:

page 39 of 1591:  http://pbadupws.nrc.gov/docs/ML0633/ML063340271.pdf

http://periodictable.com/Isotopes/089.228/index.full.prod.html

  • 233.28   keV    —>  Thulium-165  (Tm-165)

SOURCES:

http://nucleardata.nuclear.lu.se/Scripts/database/nudat/isotope.idc?iZA=690165

http://periodictable.com/Isotopes/069.165/index2.full.prod.htm

  • 241.75   keV    —>  Rhenium-179  (Re-179)

SOURCES:

http://ie.lbl.gov/toi/nuclide.asp?iZA=750179

http://periodictable.com/Isotopes/075.179/index2.full.prod.html

  • 245.45   keV    —>  Protactinum-231 (Pa-231)

SOURCES:

http://nucleardata.nuclear.lu.se/Scripts/database/es/isotope.idc?iZA=910231

http://periodictable.com/Isotopes/091.231/index2.full.prod.html

  • 270.55   keV    —>  Therbium-152  (Tb-152)

SOURCES:

http://ie.lbl.gov/toi/nuclide.asp?iZA=650152

http://periodictable.com/Isotopes/065.152/index2.full.prod.html

  • 328.26   keV    —>  Bismuth-212   (Bi-212)

SOURCES:

http://personal.ph.surrey.ac.uk/~phs1pr/msc_dissertations/msc-diss-2010/TOLULOPE%20ALONGE%20submitted.pdf

  • 670.63   keV    —>  Europium-150  (Eu-150)

SOURCES:

https://ir.library.oregonstate.edu/xmlui/bitstream/handle/1957/31487/SchmelzenbachPaulD2003.pdf?sequence=3

http://periodictable.com/Isotopes/063.150/index2.full.prod.html

  • 748.18   keV   —>  ?

748.057 —>  Eu-150
748.08 —>     U-239
748.1    —>    Fe-61, Pd-101, Rh-112, or Pa-234

SOURCES:

http://ie.lbl.gov/decay/t4.pdf

  • 769.19   keV    —>  Plutonium-239  (Pu-239)

SOURCES:

http://ie.lbl.gov/toi/nuclide.asp?iZA=940239

http://periodictable.com/Isotopes/094.239/index2.full.prod.html

  • 840.69   keV   —>  Germanium-74  (Ge-74)  (=stable)
    Neutron activated Germanium ?

SOURCES:

http://www.mpi-hd.mpg.de/gerda/public/2010/phd2010_georgMeierhofer.pdf

http://periodictable.com/Isotopes/032.74/index2.full.prod.html

  • 935.47   keV  —>  Manganese-55 (Mn-55)   (= stable)
    Neutron activated Manganese ?

SOURCES:

http://www-nds.indcentre.org.in/exfor/servlet/X4sGetSubent?reqx=84126&subID=41565035&plus=1

http://periodictable.com/Isotopes/025.55/index2.full.prod.html

  • 965.51   keV  —>  ?

Radium-224  (Ra-224 )   ?

Or perhaps  @ 965.5 keV:

Xenon-120  (Xe-120  )  (?)
Praseodymium-134  (Pr-134)    (?)

SOURCES:

http://dbserv.pnpi.spb.ru/elbib/tablisot/ensdf/ensdf2/a221_240/224Ra.enx

http://periodictable.com/Isotopes/088.224/index2.full.prod.html

http://ie.lbl.gov/decay/t5.pdfhttp://periodictable.com/Isotopes/054.120/index2.full.prod.html

http://periodictable.com/Isotopes/059.134/index2.full.prod.html

  • 1378.50   keV  —>    Mercury-193 (Hg-193)

SOURCES:

http://ie.lbl.gov/toi/nuclide.asp?iZA=800193

http://periodictable.com/Isotopes/080.193/index2.full.prod.html

  • 1765.12  keV  —>  Bismuth-214 (Bi-214)

SOURCES:

http://pbadupws.nrc.gov/docs/ML0702/ML070230274.pdf

Got some better ideas?  Please let me know. 

See also comments under “Colorado Radioactive Freak Rain…”

— — — — — — —   — — — — — — —

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5 Responses to An Attempt to Identify the ‘Unknown’-Flagged keV Decay Energies in the Lichen Sample Gammaspectroscopy

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