DeepBlueMarine Physics - Revision history

Foretony: /* Gold CPAA */

2013-07-15T20:34:27Z

Gold CPAA

2013-07-15T20:26:30Z

Neutron knockout

2013-07-15T20:22:06Z

Neutron knockout

2013-07-15T20:18:56Z

Neutron knockout

2013-07-15T20:15:44Z

Gold CPAA

2013-07-15T20:14:59Z

Gold CPAA

2013-07-15T20:12:09Z

Gold CPAA

2013-07-15T20:09:07Z

Gold CPAA

2013-07-15T18:03:28Z

Gold CPAA

2013-07-15T17:56:18Z

Neutron knock out

← Older revision		Revision as of 20:34, 15 July 2013
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	Single proton knockout		Single proton knockout
		+
		+	<math>{197 \atop\; }Au (\gamma,p){196 \atop \; }Pt</math>
		+
		+	double proton knockout
		+
		+	<math>{197 \atop\; }Au (\gamma,2p){195 \atop \; }Ir</math>
		+
		+	Iridium has a meta state with a 3.8 hour half-life and it can Beta decay to Pt-195 with a half life of 2.5 hours. The Pt-195 can emit a 99 and 31 keV photons in coincidence.

	===Iridium CPAA===		===Iridium CPAA===

← Older revision		Revision as of 20:26, 15 July 2013
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	Au-195 will electron capture after 186 days to Pt-195 which has 186 and 144 keV lines in coincidence.		Au-195 will electron capture after 186 days to Pt-195 which has 186 and 144 keV lines in coincidence.
		+
		+
		+	====Proton knockout====
		+
		+	Single proton knockout

	===Iridium CPAA===		===Iridium CPAA===

@@ Line 104: / Line 104: @@
 The meta state for two neutron knockout will emit several photons the dominant one is at 262 keV.
-Au-195 will electron capture to Pt-195 which has  186 and  144 keV lines in coincidence.
+Au-195 will electron capture after 186 days to Pt-195 which has  186 and  144 keV lines in coincidence.
 ===Iridium CPAA===

← Older revision		Revision as of 20:18, 15 July 2013
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	<math>{197 \atop\; }Au (\gamma,2n){195 \atop \; }Au</math>		<math>{197 \atop\; }Au (\gamma,2n){195 \atop \; }Au</math>
		+
		+	The meta state for two neutron knockout will emit several photons the dominant one is at 262 keV.
		+
		+	Au-195 will electron capture to Pt-195 which has 186 and 144 keV lines in coincidence.

	===Iridium CPAA===		===Iridium CPAA===

← Older revision		Revision as of 20:15, 15 July 2013
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	:;Double neutron knockout		:;Double neutron knockout
		+
		+	<math>{197 \atop\; }Au (\gamma,2n){195 \atop \; }Au</math>

	===Iridium CPAA===		===Iridium CPAA===

@@ Line 68: / Line 68: @@
 <math>{197 \atop\; }Au (\gamma,n){196 \atop \; }Au</math>
 Au-196 decays with a half life 6.183 days of by electron capture to Platinum (Pt-196) 92% of the time.
@@ Line 96: / Line 97: @@
 ;There is also a coincidence signal for Pt-195 for 186 & 144 keV
 ===Iridium CPAA===

← Older revision		Revision as of 20:12, 15 July 2013
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−	There is another coincidence for the case where the Gold is in an excited state after a neutron is knocked out. ~~The~~ meta ~~state has a~~ 8.6 second and 9.6 hours	+	There is another coincidence for the case where the Gold is in an excited state after a neutron is knocked out. Two possible meta states exist with different half lives 8.6 second and 9.6 hours. The 8.6 second meta state emitts only one photon. The 9.6 hour meta state has 188 and 148 keV photons in coincidence.

	;The 188 and 148 keV photons are in coincidence		;The 188 and 148 keV photons are in coincidence

@@ Line 64: / Line 64: @@
 ===Gold CPAA===
-Both neutron and proton knockout to Platinun-196
+Both neutron and proton knockout to Platinun-196.  Proton knockout directly goes to Pt-196 while neutron goes to this state through inverse beta decay (electron capture) of Au-196.
 <math>{197 \atop\; }Au (\gamma,n){196 \atop \; }Au</math>

← Older revision		Revision as of 18:03, 15 July 2013
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	You could look for a coincidence between a 355.73 and 333.03 keV photon.		You could look for a coincidence between a 355.73 and 333.03 keV photon.

		+	:Coincidence signal

		+	From http://radware.phy.ornl.gov/cgi-bin/cf
		+
		+	;The coincidence 336->333 keV coincidence has a branching ration of 25% see ref. 2 below.
		+
		+
		+	There is another coincidence for the case where the Gold is in an excited state after a neutron is knocked out. The meta state has a 8.6 second and 9.6 hours
		+
		+	;The 188 and 148 keV photons are in coincidence
		+
		+	ref:
		+
		+	1.) Nucl.Phys. A796, 1 (2007), P.Petkov, J.Jolie, S.Heinze, S.E.Drissi, M.Dorthe, J.Groger, J.L.Schenker. "Nanosecond lifetimes and electromagnetic transition strengths in 196Au"
		+
		+	2.) Phys.Rev. C62, 064304 (2000), J.Groger, J.Jolie, R.Krucken, C.W.Beausang, M.Caprio, R.F.Casten, J.Cederkall, J.R.Cooper, F.Corminboeuf, L.Genilloud, G.Graw, C.Gunther, M.de Huu, A.I.Levon, A.Metz, J.R.Novak, N.Warr, T.Wende. "Nuclear Structure of 196Au: More evidence for its supersymmetric description"
		+
		+
		+	;There is also a coincidence signal for Pt-195 for 186 & 144 keV

	===Iridium CPAA===		===Iridium CPAA===

← Older revision		Revision as of 17:56, 15 July 2013
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	If Pt-196 is in an excited state, then there are two lifetimes to de-excite of 8.1 seconds and 9.6 hours . The 8.1 second meta stable state decays by emitting a 85 keV ph0ton. For the 9.6 hours state then dominant intensities are a photon emission energies of 188.27 and 147.81 keV.		If Pt-196 is in an excited state, then there are two lifetimes to de-excite of 8.1 seconds and 9.6 hours . The 8.1 second meta stable state decays by emitting a 85 keV ph0ton. For the 9.6 hours state then dominant intensities are a photon emission energies of 188.27 and 147.81 keV.
−
−
−	~~:Coincidence signal~~
−	~~;The 188 and 148 keV photons are in coincidence~~
−
−	~~ref:~~
−
−	~~1.) Nucl.Phys. A796, 1 (2007), P.Petkov, J.Jolie, S.Heinze, S.E.Drissi, M.Dorthe, J.Groger, J.L.Schenker. "Nanosecond lifetimes and electromagnetic transition strengths in 196Au"~~
−
−	2.) Phys.Rev. C62, 064304 (2000), J.Groger, J.Jolie, R.Krucken, C.W.Beausang, M.Caprio, R.F.Casten, J.Cederkall, J.R.Cooper, F.Corminboeuf, L.Genilloud, G.Graw, C.Gunther, M.de Huu, A.I.Levon, A.Metz, J.R.Novak, N.Warr, T.Wende. "Nuclear Structure of 196Au: More evidence for its supersymmetric description"
−
−
−	~~;There is also a coincidence signal for Pt-195 for 186 & 144 keV~~

	====Proton Knockout====		====Proton Knockout====