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To get started with this blank TiddlyWiki, you'll need to modify the following tiddlers:
* SiteTitle & SiteSubtitle: The title and subtitle of the site, as shown above (after saving, they will also appear in the browser title bar)
* MainMenu: The menu (usually on the left)
* DefaultTiddlers: Contains the names of the tiddlers that you want to appear when the TiddlyWiki is opened
You'll also need to enter your username for signing your edits: <<option txtUserName>>
These InterfaceOptions for customising TiddlyWiki are saved in your browser

Your username for signing your edits. Write it as a WikiWord (eg JoeBloggs)

<<option txtUserName>>
<<option chkSaveBackups>> SaveBackups
<<option chkAutoSave>> AutoSave
<<option chkRegExpSearch>> RegExpSearch
<<option chkCaseSensitiveSearch>> CaseSensitiveSearch
<<option chkAnimate>> EnableAnimations

----
Also see AdvancedOptions
The scientific achievements of all the university operated spectrometers at ~JRR-3 may be found at the [[ISSP-NSL activity database|http://quasi.issp.u-tokyo.ac.jp/db/]].  Publications specific to the 4G GPTAS may be found at the following link.

* [[Publications from 4G GPTAS experiments|http://quasi.issp.u-tokyo.ac.jp/db/search.php?submitSearch=1&targetpublication=1&spectrometer=1]]

Beamtime Schedule for JFY 2010:

<html>
<pre>
#4G schedule update 2010/11/19
#2010 #1-#7 cycles

#1cycle				user		days	prop	cryo	IRThelp	experiment
##2010/03/30(Tu)-2010/04/02(Fr)	SatoG(IRT)	3	10400	4KGM	yes	MonochromatorSetup
##USER CHANGED
2010/03/30(Tu)-2010/04/02(Fr)	YoshiG(IRT)	3	10400	4KGM	no	TechnicianTraining
2010/04/02(Fr)-2010/04/05(Mo)	YoshiG(IRT)	3	10400	4KGM	no	TechnicianTraining
2010/04/05(Mo)-2010/04/09(Fr)	SatoG(IRT)	4	10400	4KGM	yes	MonochromatorSetup(II)
2010/04/09(Fr)-2010/04/12(Mo)	ZhengG		3	10522B	4KGM	yes	QuantumKagomeSystem
2010/04/12(Mo)-2010/04/16(Fr)	SatoG		4	10514	VFSCM	yes	QuadrupolarOrder
2010/04/16(Fr)-2010/04/20(Tu)	AsanoG		4	10900K	VFSCM	yes	QuantumTrimerChain
2010/04/20(Tu)-2010/04/23(Fr)	MotoyaG		3	10510B	4KGM	no	TimeDependentPhenom


#2cycle				user		days	prop		cryo	IRThelp	experiment
2010/05/03(Mo)-2010/05/05(We)	YoshiG		2	10521B		n4KGM	yes	PdCrO2
2010/05/05(We)-2010/05/07(Fr)	Sato(IRT)	2	10400		4KGM	yes	MonochromatorTest
2010/05/07(Fr)-2010/05/12(We)	YNChoi(IRT)	5	10400		4KGM	yes	MetalSingleCryst
2010/05/12(We)-2010/05/18(Tu)	SHLee(IRT)	6	10400		VFSCM	yes	FeSeTe
2010/05/18(Tu)-2010/05/22(Sa)	Sato		4	10515B		4KGM	yes	KagomeSingle
2010/05/22(Sa)-2010/05/25(Tu)	AsoG		3	10502		1Kcryo	no	115compound
2010/05/25(Tu)-2010/05/28(Fr)	Sato(U+IRT)	2+1	10515B+10400	4KGM	yes	KagomeSingle

#3cycle				user		days	prop		cryo	IRThelp	experiment
2010/06/07(Mo)-2010/06/11(Fr)	OnimaruG(U)	4	10511B		4KGM+1K	no	Clathrate
2010/06/11(Fr)-2010/06/14(Mo)	YokoyamaG(I)	3	10400		4KGM	no	SrRuO3
2010/06/14(Mo)-2010/06/19(Sa)	SatoG(I)	5	10400		4KGM	yes	FeSeTe
2010/06/19(Sa)-2010/06/25(Fr)	YoshiG(U+I)	3+3(I)	10521B		4KGM	no	PdCrO2
2010/06/25(Fr)-2010/07/02(Fr)	SatoG(I)	7	10400		4KGM+1K	yes	BaFe2(As,P)2	
Note: U=user, I=IRT

#4cycle
#4cycle				user		days	prop		cryo	IRThelp	experiment
2010/07/12(Mo)-2010/07/15(Th)	IRT(SatoG)	3	10400		4KGM	yes	KagomeCrystal
# SCHEDULE HAS BEEN CHANGED DUE TO DILUTION TROUBLE!!!
#2010/07/15(Th)-2010/07/19(Mo)	SatoG		4	10516B		4KGM	yes	GaNb4S8
2010/07/15(Th)-2010/07/20(Tu)	SatoG		4+IRT(1)10516B+10400(1)	4KGM	yes	GaNb4S8
2010/07/20(Tu)-2010/07/21(We)	IRT(SatoG)	1	10400		4KGM	yes	NiGa2S4
#2010/07/19(Mo)-2010/07/23(Fr)	UwatokoG	4	10518		dilut	no	YbCo2Zn20
#2010/07/23(Fr)-2010/07/26(Mo)	IRT(SatoG)	3	10400		4KGM	yes	NiGa2S4
2010/07/21(We)-2010/07/26(Mo)	UwatokoG	5	10518(4)+FU(1)	dilut	no	YbCo2Zn20
2010/07/26(Mo)-2010/07/29(Th)	FurukawaG	3	10505B		4KGM	no	BaFe(As,P)
2010/07/29(Th)-2010/08/02(Mo)	IRT(SatoG)	4	10400		4KGM	yes	InternationalCollaboration
2010/08/02(Mo)-2010/08/06(Fr)	MotoyaG		4	10510B		4KGM	no	Ca3Co2O6

#5cycle				user		days	prop		cryo	IRThelp	experiment
2010/08/16(Mo)-2010/08/19(Th)	SatoGIRT	3	10400(3)	4KGM	yes	Cs2Cu3SnF12
2010/08/19(Th)-2010/08/23(Mo)	UwatokoG	4	10518		4KGM	no	highpressure
2010/08/23(Mo)-2010/08/26(Th)	KamedaG		3	10508B		RT	partial	LiIonSolution
2010/08/26(Th)-2010/08/29(Su)	ZhengG		3	10522B(1)+(2FU)	4KGM	yes	Kagome
2010/08/29(Su)-2010/09/03(Fr)	FurukawaG	5	10504(4)+10505(1) 4KGM	no	BaFe(As,P)
2010/09/03(Fr)-2010/09/10(Fr)	SatoG		7	10517B		4KGM	yes	BaFe(as,P)

#6cycle (fixed)
2010/09/20-2010/10/15
2010/09/20(Mo)-2010/09/28(Tu)	IRT		8	10400		?	?	Monochromator...
2010/09/28(Tu)-2010/09/30(Th)	OoharaG		2	10901K		?	?	?
2010/09/30(Th)-2010/10/04(Mo)	YokoyamaG	4	10519B		?	?	UPd2Si2Pressure
2010/10/04(Mo)-2010/10/09(Sa)	SatoG		5	10513(1)+7B(2)+IRT(2)	?	test
2010/10/09(Sa)-2010/10/12(Tu)	MotoyaG		3	10510B(3FU)	?	?	followup(tentative)
2010/10/12(Tu)-2010/10/15(Fr)	AsoG		3	10512B(3)+10502	?	?	CeIrSi3


#7cycle (fixed; updated)
2010/10/25-2010/11/19
2010/10/25(Mo)-2010/10/29(Fr)	AsoG		4	10501B		?	?	CeRh(Ir,In)5
2010/10/29(Fr)-2010/11/01(Mo)	SatoG		3	10513		4KGM	Yes	Fe-superconductor
2010/11/01(Mo)-2010/11/04(Th)	Aso+UwatoG	3	10502		dilut	?	Yb1-2-20pressure
2010/11/04(Th)-2010/11/08(Mo)	AmitsukaG	4	10500B		?	?	UPd2Si2Pressure
## canceled due to sample preparation
#2010/11/08(Mo)-2010/11/15(Mo)	KadowakiG	7	10506B		?	?	QuantumMonopole
2010/11/08(Mo)-2010/11/15(Mo)	SatoG(IRT)	7	10400		?	?	monochro+etc
2010/11/15(Mo)-2010/11/19(Fr)	SatoG		4	10513		?	?	Fe-superconductors

#stat for #1 + #2 +#3 +#4 +#5 +#6 +#7 cycles
IRT(+M&D): 3+3+4 +2+5+6+1 +3+5+7+3 +3+1+4+1 +3 +8+2 +7 = 71
	(71.)/54. (131.5%)
Buffer(Kadai+followup): 4 +0 +0 +1 +2 +2+3 + 0 = 12
	(12.)/32. (37.5%)
User: 3+4+3 +2+4+3+2 +4+3 +4+4+3+4 +4+3+1+5+7 +4+1+2+3 +4+3+3+4+4= 91
	(91)/88. (103.4%)
Total assigned: 174/174 (100%)



#International collaborations:
2010/05/07(Fr)-2010/05/12(We)	YNChoi(IRT)	5	10400		4KGM	yes	MetalSingleCryst
2010/05/12(We)-2010/05/18(Tu)	SHLee(IRT)	6	10400		VFSCM	yes	FeSeTe
2010/07/29(Th)-2010/08/02(Mo)	IRT(SatoG)	4	10400		4KGM	yes	InternationalCollaboration
Total: 15

#Spectrometer commissioning
2010/03/30(Tu)-2010/04/02(Fr)	YoshiG(IRT)	3	10400	4KGM	no	TechnicianTraining
2010/04/02(Fr)-2010/04/05(Mo)	YoshiG(IRT)	3	10400	4KGM	no	TechnicianTraining
2010/04/05(Mo)-2010/04/09(Fr)	SatoG(IRT)	4	10400	4KGM	yes	MonochromatorSetup(II)
2010/05/05(We)-2010/05/07(Fr)	Sato(IRT)	2	10400		4KGM	yes	MonochromatorTest
Total: 12

#monochromator drum trouble temporary repair
2010/09/20(Mo)-2010/09/28(Tu)	IRT		8	10400		?	?	Monochromator...
Total: 8

#dilution failure
# SCHEDULE HAS BEEN CHANGED DUE TO DILUTION TROUBLE!!! 2010/07/15

# sudden cancel
## canceled due to sample preparation
#2010/11/08(Mo)-2010/11/15(Mo)	KadowakiG	7	10506B		?	?	QuantumMonopole

#electronics trouble followup
#2010/10/09(Sa)-2010/10/12(Tu)	MotoyaG		3	10510B(3FU)	?	?	followup(tentative)


</pre>
</html>


Click here for: EarlierBeamTimeSchedules
*2010/07/28: BeamtimeSchedule is updated.  The 2020 #5 cycle are all allocated.  Please start the document works if allocated.  Please not that there is @@no remaining beamtime for #7 cycle@@, and only the chance is for #6 cycle!!!
*2010/04/21: New doubly (horizontally+vertically) focusing monochromator is now available.  Roughly speaking 10 to 12 times higher counting rate is realized using the doubly focusing monochromator together with the doubly focusing analyzer.  Let's try.  Some reports of the performance will be available soon.
*2010/04/21: BeamtimeSchedule is updated. The 2010 #2 cycle beamtimes are all allocated. 
*2010/03/10: BeamtimeSchedule is updated. The 2010 #1 cycle beamtimes are all allocated.  I apologize for this very short-time arrangement.  Reactor is running good, so let's do good work!
*2010/02/12: @@Reactor has been fixed!@@ The JRR-3 reactor will be up on Thursday 2010/02/25/15:00 (20MW).  I really apologize for those who lost the beamtime during this unexpected shutdown.
*2010/02/12: BeamtimeSchedule is updated.  The 2009 #6 cycle beamtimes are all allocated.
*2009/06/26: @@Reactor Restart!@@ The JRR-3 reactor will be up on Saturday 2009/06/27/15:00 (20MW).  I really apologize for those who lost the beamtime during this unexpected shutdown.
*2009/06/10: @@Reactor scram! Reactor scram!@@ The reactor JRR-3 has been down from the beginning of the 3rd cycle.  No reactor forecast is given, so please wait for the good news! I apologize for the inconvenience of the ones who got beamtime in first half of the 3rd cycle...
*2009/06/04: BeamtimeSchedule is updated. The 2009 #3 cycle beamtimes are all allocated. Please start your document work as soon as possible.  See you in Tokai!
*2009/03/08: BeamtimeSchedule is updated. The 2009 #1 cycle beamtimes are all allocated. Please start your document work as soon as possible.  See you in Tokai!
*2009/02/16: BeamtimeSchedule is updated. This year, all the beamtime is allocated.  Soon, next year (2009) beamtime allocation starts! 
*2008/11/24: BeamtimeSchedule is updated. 
*2008/10/08: BeamtimeSchedule is updated.  Please start paperworks for the #4 cycle.  Also, please send me the beamtime request!  We are now consuming more IRT beamtime than allowed, just because there are too few requests!!!

--
See NewsArchive for older news.
Background: #fff
Foreground: #000
PrimaryPale: #8cf
PrimaryLight: #18f
PrimaryMid: #04b
PrimaryDark: #014
SecondaryPale: #ffc
SecondaryLight: #fe8
SecondaryMid: #db4
SecondaryDark: #841
TertiaryPale: #eee
TertiaryLight: #ccc
TertiaryMid: #999
TertiaryDark: #666
Error: #f88
If you are at 4G [[GPTAS]] or at the Kaihouken, the following links may be useful.

To control 4G, see data, see a logfile, make a scan file, etc, visit the following web page:
*[[4G GPTAS Controller Web Page|http://172.16.21.1/apache2-default/index.html]]

Several (but not all) specific links to the contents of the Controller Web Page is listed below.
*[[4G today's logfile|http://172.16.21.1/LOG/log]]
*[[4G today's logfile (auto update every 30 seconds)|http://172.16.21.1/apache2-default/logviewer.php]]
*[[4G data storage|http://172.16.21.1/LOG/data]]
*[[4G logfile storage|http://172.16.21.1/LOG/rec]]
*[[4G webcam|http://172.16.21.14]]
*[[4G network configurations|http://172.16.21.1/LOG/web/network.html]]
*[[4G Filman scan file writer|http://172.16.21.1/apache2-default/scriptwriter.php]]

[[GPTAS]]
BreakingNews


Beamtime Schedule for JFY 2009:

<html>
<pre>
#4G schedule update 2009/03/03
#2009 #1 to #6 cycles

#1 cycle			user		days	prop		cryo	IRThelp	experiment
2009/03/23(Mo)-2009/03/31(Tu)	YoshiG		8	9518+9400(4)	4KGM	no	PCMO
2009/03/31(Tu)-2009/04/04(Sa)	IRTSatoG	4	9400(4)		4KGM	yes	IRT
2009/04/04(Sa)-2009/04/08(We)	ZhengG		4	9520+9400(1)	CTI	yes	CuNano
2009/04/08(We)-2009/04/12(Su)	TabataG(IRT)	4	9812K(4)	4KGM	no	MoSuper
2009/04/13(Su)-2009/04/17(Fr)	SatoG		5	9511		4KGM	yes	newKagome

#stat for #1 cycle
IRT: 4+4 = 9
User(Kadai+followup): 4+1
	(8+5)/46. (28.3%)
User: 4+3+5 = 12
	(12)/104. (11.5%)
Total assigned: 25/150 (16.7%)


#2 cycle			user		days	prop		cryo	IRThelp	experiment
2009/05/04(Mo)-2009/05/07(Th)	UwatokoG	3	9517		4K	yes	pressure
2009/05/07(Th)-2009/05/11(Mo)	SatoG		4	9511+9400(3)	VMag	yes	newKagome
2009/05/11(Mo)-2009/05/12(Tu)	UwatokoG	1	9517		4K	yes	pressure
2009/05/12(Tu)-2009/05/16(Sa)	SatoG		4	9513+9400(1)	4KGM	yes	MagCluster
2009/05/16(Sa)-2009/05/17(Su)	UwatokoG	1	9517		4K	yes	pressure
2009/05/17(Su)-2009/05/21(Th)	YoshiG		4	9519		4KGM	no	2DFrustrate
2009/05/21(Th)-2009/05/22(Fr)	UwatokoG	1	9517		4K	yes	pressure
2009/05/22(Fr)-2009/05/25(Mo)	OnimaruG	3	9509B		?	no	clathrate
2009/05/25(Mo)-2009/05/28(Th)	YokoyamaG	3	9814K		?	no	Ce115
2009/05/28(Th)-2009/05/29(Fr)	UwatokoG	1	9517		4K	yes	pressure

#stat for #1-2 cycle
IRT: 4+4 = 8
User(Kadai+followup): 4+1 +3+1+3
	(8+12)/46. (43.5%)
User: 4+3+5 +3+1+1+3+1+4+1+3+1 = 30
	(12+18)/104. (28.8%)
Total assigned: 50/150 (33.3%)

#3 cycle: 2009/06/08-2009/07/03
##
##2009/06/08(Mo)-2009/06/13(Sa)	IRTYoshi	5	9400		?	no	?
##2009/06/13(Sa)-2009/06/15(Mo)	AsoG		2	9501		1K	no	Ce115
##2009/06/15(Mo)-2009/06/18(Th)	KamedaG		3	9505		no	no	liquid
##2009/06/18(Th)-2009/06/22(Mo)	SatoG		4	9510		4K	yes	highpressure
##2009/06/22(Mo)-2009/06/26(Fr)	MotoyaG		4	9507		1K	no	????
##2009/06/26(Fr)-2009/06/27(Sa)	IRTSato		1	9400		4KGM	yes	IntlCollaboration(SHL)
## REACTOR SCRAM! THE ABOVE EXPERIMENTS HAVE BEEN CANCELED
2009/06/27(Sa)-2009/07/03(Fr)	IRTSato		6	9400		4KGM	yes	IntlCollaboration(SHL)

#stat for #1-3 cycle
IRT: 4+4 +0 +0+6 = 14
User(Kadai+followup): 4+1 +3+1+3 +0
	(14+12)/46. (56.5%)
User: 4+3+5 +3+1+1+3+1+4+1+3+1 +0+0+0+0 = 30
	(12+18+0)/104. (28.8%)
Total assigned: 56/150 (37.3%)
REACTOR DOWN:19


#4 cycle: 2009/11/30-2009/12/25
##2009/11/30(Mo)-2009/12/03(Th)	KamedaG		3	9505		No	No	liquid
##2009/12/03(Th)-2009/12/05(Sa)	SatoG		2	9510		4K	Yes	BaFe2As2Highpressure
##2009/12/05(Sa)-2009/12/10(Th)	MotoyaG		5	9507		?	No	timedependent
##2009/12/10(Th)-2009/12/15(Tu)	MitsudaG	5	9506		Orange	No	UniaxialPressure
##2009/12/15(Tu)-2009/12/20(Su)	SatoG		5	9512		4KGM	Yes	BaFe2As2
##2009/12/20(Su)-2009/12/25(Fr)	IRTYoshiG	5	9519(1)+9400(4)	?	No	?
## ALL OF THE ABOVE WERE CANCELED DUE TO UNEXPECTED REACTOR SHUTDOWN...

#5 cycle: 2010/01/11-2010/02/05
## #5 CYCLE WAS CANCELED.

#6 cycle: 2010/02/15-2010/03/12 [tentative]
## #6 CYCLE WAS RESCHEDULED TO 2010/02/25-2010/03/19
2010/02/25(Th)-2010/03/04(Th)	IRT+SatoG	7	9400(0)+9510(7)	4KGM	Yes	Setup+HighpressureExp
2010/03/04(Th)-2010/03/09(Tu)	MotoyaG		5	9507		1K	No	TimeDependentPhenomena
2010/03/09(Tu)-2010/03/12(Fr)	KamedaG		3	9505		No	No	DenseUreaLiquid
2010/03/12(Fr)-2010/03/15(Mo)	MitsudaG	3	9506		Orange	No	UniaxialPressure
2010/03/15(Mo)-2010/03/17(We)	SatoG		2	9512		4KGM	Yes	Ba(Fe,Co)2As2
2010/03/17(We)-2010/03/19(Fr)	AsoG		2	9500		1K	No	CeRhIn5

#stat for #1-6 cycle
IRT: 4+4 +0 +0+6 +0 +0 +0 = 14
User(Kadai+followup): 4+1 +3+1+3 +0 +0 +0 +0 = 12
	(14+12)/46. (56.5%)
User: 4+3+5 +3+1+1+3+1+4+1+3+1 +0+0+0+0 +0 +0 +7+5+3+3+2+2 = 52
	(12+18+0+0+0+22)/104. (50.0%)
Total assigned: 78/150 (52.0%)
REACTOR DOWN:0 +0 +19 +25 +25 +3 = 72

</pre>
</html>


Click here for: EarlierBeamTimeSchedules

Beamtime Schedule for JFY 2008:

<html>
<pre>
#4G schedule update 2009/02/16
#2008 #1 to #7 cycles

#1 cycle		user		days	prop	cryo	IRThelp	experiment
2008/07/14Mo-2008/07/24	IRT		10	comm	n/a	yes	Spectrometer alignment
2008/07/24Th-2008/07/28	Motoya		4	8805K	orange	no	Time-resolve...
2008/07/28Mo-2008/07/31	Tabata		3	8811K	1Kcryo	no	Heavy-fermion...
2008/07/31Th-2008/08/05	IRTsato		5	8400	4KGM	yes	IRT
2008/08/05Tu-2008/08/08	Aso		3	8503	dilut	no	Near QCP...

#2 cycle
2008/08/18Mo-2008/08/22	IRT		4	8400	no	yes	Monochromator setup...
2008/08/22Fi-2008/08/25	Aso		3	8501	1Kcryo	no	CeRhIn5 magnetic...
2008/08/25Mo-2008/09/01	Amitsuka	7	8500B	orange	no	URu2Si2...
2008/09/01Mo-2008/09/04	Umeo		3	8813K	dilut	no	Reciprocal kagome...
2008/09/04Th-2008/09/08	Onimaru		4	8509B	4KGM	no	Non centrosymmetric...
2008/09/08Mo-2008/09/09	IRTsato		1	8400	4KGM	yes	n/a
2008/09/09Tu-2008/09/12	Kameda		3	8507B	special	partial	Water solution...

#3 cycle
2008/09/22Mo-2008/09/28	IRT		6	8400	no	yes	Monochromator setup...
##2008/09/26Fi-2008/10/01	Kadowaki	5	8505B	dilut	yes	QCP in heavy fermion...
##canceled due to dilution fridge failure...
2008/09/28Su-2008/10/01 IRTtabata	3	8811K	orange	no	Itinerant-localized transition...
2008/10/01We-2008/10/10	IRT		9	8400	4KGM	no	test exp Monochro
2008/10/10Fr-2008/10/13	Zheng		3	8523B	5TMag	yes	Frustrated Co2(OD)3Br...
2008/10/13Mo-2008/10/17	IRT		4	8400	4KGM	no	test exp Monochro

#4 cycle
2008/10/27Mo-2008/10/29 SatoIRT 	2 	8400 	4KGM 	yes 	setup
2008/10/29We-2008/10/31 KubotaG 	2 	8802K 	4KGM 	no 	NdSrMnO4
2008/10/31Fr-2008/11/04 TakedaG 	3+1 	8517B 	special	partial	liquid 
2008/11/04Tu-2008/11/07 MotoyaG		3	8807K	Orange	no	CeIr3Si2
2008/11/07Fr-2008/11/12 ShigematsuG	5	8516B	4KGM	no	BaTiO
2008/11/12We-2008/11/17 SatoG		5	8515	4KGM	yes	quasicrystal
2008/11/17Mo-2008/11/21 SatoG		4	8512	4KGM	yes	quasicrystalII

#5 cycle: 2008/12/01~2008/12/26
2008/12/01Mo-2008/12/03	IRT		2	8400	4KGM	yes	setup
2008/12/03We-2008/12/06	SatoG		3	8511B	4KGM	yes	garnet
2008/12/06Sa-2008/12/10	YoshiG		4	8522B	4KGM	no	PrSrMnO4
2008/12/10We-2008/12/13	UwatokoG	3	8518	4Kcryo	yes	highpressure
2008/12/13Sa-2008/12/17	FurukawaG	4	8504B	1K	no	CeCoIn5
2008/12/17We-2008/12/26	KadowakiG	9	8505B	dilut	yes	monopole	

#6 cycle: 2009/01/12~2009/02/06
2009/01/12(Mo)-2009/01/17(Sa)	IRTSato		5	8400		n/a	yes	monochromator
2009/01/17(Sa)-2009/01/21(We)	FurukawaG	4	8508B+8502B(1)	1K	no	RENi2B2C
2009/01/21(We)-2009/01/25(Sa)	SatoG		4	8514		4KGM	yes	AgInTbQC
2009/01/25(Su)-2009/01/28(We)	AsoG		3	8502B		1K	no	CeRhIn5
2009/01/28(We)-2009/01/29(Th)	IRTSato		1	8400		4KGM	yes	test
2009/01/29(Th)-2009/02/03(Tu)	YokoyamaG	5	8520B		Orange	no	QCP
2009/01/03(Tu)-2009/02/06(Fr)	SatoG		3	8513		4KGM	yes	newKagome

#7 cycle: 2009/02/16-2009/03/13
2009/02/16(Mo)-2009/02/20(Fr)	YoshiG		4	8521B		4KGM	no	2DTMOxides
2009/02/20(Fr)-2009/02/25(We)	KadowakiG	5	8506B		dilut	yes	Monopole
2009/02/25(We)-2009/03/02(Mo)	SatoG		5	8513+IRT(2)	4KGM	yes	BaFeCoAs2
2009/03/02(Mo)-2009/03/06(Fr)	LeeG		4	8900B		4KGM	no	cagecompound
2009/03/06(Fr)-2009/03/10(Tu)	IRT		4	8400		4KGM	yes	TBD
2009/03/10(Tu)-2009/03/13(Fr)	AsoG		3	8501		1K	no	CeRhIn5

IRT: 10+5+4+1+6+9+4 +2+1 +2 +5+1 +2+4(=56)
User(Kadai): 4+3+3+3 +2+3 +4 (=22)
	(56+22)/62 (125.8%)

User: 3 +3+7+4+3 +3 +3+5+5+4 +3+4+3+4+9 +4+4+3+5+3 +4+5+3+3(=97)
	97/113 (85.8%)

Total assigned: 175/175 (85.7%)
Open in #1-#7: none
</pre>
</html>

Beamtime schedule for JFY 2007:
<html>
<pre>

update: 2007/10/04; tjsato
#################################################################################################
# date                       days	Group		Subject		Prop#	Cryo/furnace
cycle #1
2007/03/26(M)-2007/03/28(W) 	2	xxxx		PossiblyDown	xxxx	xxxx
2007/03/28(W)-2007/03/29(Th)	1	SatoIRT		specsetup 	7400	4KGM
2007/03/29(Th)-2007/04/01(S)	3	LeeG		Eu-Ga-GePhonon	7900K	4KGM
2007/04/01(S)-2007/04/05(Th)	4	ItohG		Fructon		7504B	4KGM
2007/04/05(Th)-2007/04/09(M)	4	SatoIRT		Colayer		7400	4KGM
2007/04/09(M)-2007/04/16(M)	7	FurukawaG	Sr-Ru-O		7508B+7507B+7800K	1Kcryo
2007/04/16(M)-2007/04/20(F)	4	YoshizawaG	PCCO		7525B	1Kcryo+4KGM
-------------------------------------------------------------------------------------------------
cycle #2
2007/05/07(M)-2007/05/11(F)	4	SatoIRT		Education	7400	4KGM
2007/05/11(F)-2007/05/15(Tu)	4	Sato+IRT(1)	ZnFeSc		7515B	4KGM
									7400(1)	
2007/05/15(Tu)-2007/05/18(F)	3	FurukawaIRT	Sr-Ru-O		7400	1K+Orange
2007/05/18(F)-2007/05/23(W)	5	Onimaru+IRT(1)	CeNiPb		7511B	1K(reserved)
2007/05/23(W)-2007/05/29(Tu)	6	YoshizawaIRT	PCCO		7525B	4KGM
									7400(4)
2007/05/29(Tu)-2007/06/01(F)	3	Aso		CeRhSi3		7501B	1K(reserved)
-------------------------------------------------------------------------------------------------
cycle #3
2007/06/11(M)-2007/06/17(Su)	6	Kadowaki*	Nanotube	7505B	Orange
#2007/06/17(Su)-2007/06/20(W)	3	Umeo*		Yb-Ag-Ge	7522B	dilution(reserved)
#changed due to dilution failure
2007/06/17(Su)-2007/06/20(W)	3	Aso		CeRhIn		7502	Orange
2007/06/20(W)-2007/06/24(Su)	4	Yokoyama*	Ce155		7523B	Orange
2007/06/25(Su)-2007/06/28(Th)	4	SatoIRT		Garnet		7400	4KGM
2007/06/28(Th)-2007/07/02(M)	4	Tokunaga	PSCMO		7901B	4KGM
2007/07/02(M)-2007/07/06(F)	4	Aso		CeRhIn		7501B	1K
-------------------------------------------------------------------------------------------------
cycle #4 (!!!CANCELED!!!)
#2007/07/16(M)-2007/07/19(Th)	3	Tabata		Ce-Ru-Si	7519B	Orange
#2007/07/19(Th)-2007/07/23(M)	4	KadowakiIRT	Nanotube	7400	Orange
#2007/07/23(M)-2007/07/27(F)	4	Kameda		urea		7506B	no
#2007/07/27(F)-2007/07/31(Tu)	4	Aso		CeRhIn		7502	1K
#2007/07/31(Th)-2007/08/07(Tu)	7	Takeda		Liquidmetal	7520B	high-T
#									7521B
#2007/08/07(Tu)-2007/08/10(F)	3	Umeo		YybAgGe		7522B	dilution
-------------------------------------------------------------------------------------------------
cycle #5: 2007/08/20 ~ 2007/09/14
2007/08/20(M)~2007/08/27(M)	7	(Sato+Yoshi)IRT TBA		7400		4KGM/1K
2007/08/27(M)~2007/08/31(F) 	4	KadowakiG 	Nanotube	7400		Orange
2007/08/31(F)~2007/09/6(Th) 	6	TabataG 	CeRhRuSi	7518B+7519B	Orange
2007/09/06(Th)~2007/09/11(Tu) 	5	ShigematsuG 	BaTiO		7516B+7517B	4KGM
2007/09/11(Tu)~2007/09/14(F) 	3	AsoG		CeRhIn		7502 		1K
-------------------------------------------------------------------------------------------------
cycle #6: 2007/09/24 ~ 2007/10/19
2007/09/24(M)~2007/09/28(F)	4	SatoIRT		Garnet		7400		1K
2007/09/28(F)~2007/10/01(M)	3	MotoyaG 	NonEquiSpin	7510B 		4KGM
2007/10/01(M)~2007/10/04(Th) 	3	UmeoG 		YbAgGe		7522B		dilution
2007/10/04(Th)~2007/10/07(Su)	3	KamedaG 	urea		7506B		none
#changed due to high-pressure-cell failure
#2007/10/07(Su)~2007/10/11(Th)	4	Sato(K)G 	CeRhIn		7513B 		dilution/orange
2007/10/07(Su)~2007/10/11(Th)	4	IRT(Yoshizawa) 	PCCO		7400            4KGM
2007/10/11(Th)~2007/10/15(M)	4	YoshizawaG 	PCCO		7524B 		4KGM
2007/10/15(M)~2007/10/19(F)	4	FurukawaG 	Sr-Ru-O		7503B 		1K
-------------------------------------------------------------------------------------------------
cycle #7: 2007/10/29 ~ 2007/11/23
2007/10/29(M)~2007/11/03(Su)	5	AmitsukaG	WeakFerro	7500B		Orange
2007/11/03(Su)~2007/11/06(Tu) 	3	AsoG		CeRhIn		7502 		dilution
2007/11/06(Tu)~2007/11/09(F)	3	Oohara+KubotaG 	CuZnCrSe4	7512B+7509B 	1K
2007/11/09(F)~2007/11/12(M)	3	UmeoG 		YbAgGe		7522B		dilution
# changed below because of  additional #8 cycle
#2007/11/12(M)~200711/16(F)	4	TakedaG		LiquidMetal	7520B+7521B	high-T
2007/11/12(M)~200711/17(Sa)	5	TakedaG		LiquidMetal	7520B+7521B	high-T
#2007/11/16(F)~2007/11/20(Tu) 	4	Sato+IRT	Ni4		7514B+7400	1K/4KGM
2007/11/17(Sa)~2007/11/20(Tu) 	3	Shigematsu	BTO		7517B	        4KGM
#2007/11/20(Tu)~2007/11/23(F) 	3	Open(3days)	TBA		TBA		TBA
2007/11/20(Tu)~2007/11/23(F) 	3	IRT(Yoshizawa)	Triangular	7400(3)		1K
-------------------------------------------------------------------------------------------------
Cycle #8: 2007/12/03 ~ 2007/12/26
##### VERY TENTATIVE; UNCONFIRMED ######
2007/12/03(M)~2007/12/05(W)	2	IRT     	AnalyzerSetup	7400		n/a
2007/12/05(W)~2007/12/08(Sa)    3       Sato(K)G        CeRhIn          7513B           dilution
2007/12/08(Sa)~2007/12/11(Tu)   3       TabataG         CeRhSiGe        7519B           orange
2007/12/11(Tu)~2007/12/14(Fr)   3       SatoKGYoshiIRT  CeRhIn          7513B+7524B+7400 dilution
2007/12/14(Fr)~2007/12/15(Sa)   1       IRT             AnalyzerSetup   7400            n/a
2007/12/15(Sa)~2007/12/16(Su)   1       MotoyaG         NonEquiSpin     7510B           Orange
2007/12/16(Su)~2007/12/18(Tu)   2       IRT(KadowakiG)  QCP             7400            3He
2007/12/18(Tu)~2007/12/26(W)    6+2     SatoG+IRT       Standard+Ni4    7514B+7400      3He+1K+Orange
#################################################################################################

4G Beam time statistics

#1-8cycle; updated when #8 is re-allocated
*Beamtime consumption
	(25+25*3+25*3)/175 days; 100%

*Reactor down:
	4/175 days; 2.3%

*IRT:
	Education:	4(#1)+4(#2)+4(#3)+4(#5)+4(#6)+2(#8) days (6 SatoG exp)
			4(#2)+3(#5)+4(#6)+3(#7)+1(#8)	(5 YoshiG exp)
	Followup:	6(#1)+5(#2)+0(#4)+4(#5)+2(#8) days (3 beamtime unallocated proposals + 3followup)
	Instrumentation:1(#1)+6(#8)
	(Total:		61/55 days; 111.0%)


*User:
	4(#1)+3(#2)+5(#3)+0(#4)+3(#5)+6(#6)+6(#7)+6(#8) approved proposal numbers
	12(#1)+12(#2)+21(#3)+0(#4)+14(#5)+18(#6)+22(#7)+12(#8) days
	(total:		111/120days; 92.5%)

*Open:
	0days(#7 cycle)

####################
#1-7cycle; updated when #7 is re-allocated
*Beamtime consumption
	(25+25*3+25*3)/175 days; 100%

*Reactor down:
	27/175 days; 15.4%

*IRT:
	Education:	4(#1)+4(#2)+4(#3)+4(#5)+4(#6) days (5 SatoG exp)
			4(#2)+3(#5)+4(#6)+3(#7)	(4 YoshiG exp)
	Followup:	6(#1)+5(#2)+0(#4)+4(#5) days (3 beamtime unallocated proposals + 2followup)
	Instrumentation:1(#1)
	(Total:		50/55 days; 91.0%)


*User:
	4(#1)+3(#2)+5(#3)+0(#4)+3(#5)+6(#6)+6(#7) approved proposal numbers
	12(#1)+12(#2)+21(#3)+0(#4)+14(#5)+18(#6)+22(#7) days
	(total:		99/120days; 82.5%)

*Open:
	0days(#7 cycle)

####################
#1-4cycle; recorded when #2-#4 is allocated.
*Beamtime consumption
	25+25*3/175 days; 57.14%

*Reactor down:
	27 days; 15.4%
*IRT:
	Education:	4(#1)+4(#2)+4(#3) days (3 SatoG exp)
			4(#2)	(yoshi group)
	Followup:	6(#1)+5(#2)+0(#4) days (3 beamtime unallocated proposals + 1followup)
	Instrumentation:1(#1)

	(Total:		28/55 days; 50.9%)


*User:
	4(#1)+3(#2)+5(#3)+0(#4) approved proposals	(12(#1)+12(#2)+21(#3)+0(#4)/120 days; 37.5%)

*Open:
	25*3 = 75

####################
#1cycle; recorded when #1 is allocated.
*Beamtime consumption
	25/175 days; 14.3%

*Reactor down:
	2 days; 1.1%
*IRT:
	Education:	4 days (1 SatoG exp)
	Followup:	6 days (2 beamtime unallocated proposals)
	(Total:		10/55 days; 18.2%)

*User:
	4 approved proposals	(16/125 days; 12.8%)


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[img[GPTAS1|http://www.issp.u-tokyo.ac.jp/labs/neutron/inst/GPTAS/4G-2.jpg]]  [img[GPTAS1|http://www.issp.u-tokyo.ac.jp/labs/neutron/inst/GPTAS/4G-1.jpg]]

Welcome to 4G GPTAS, a general-purpose triple-axis neutron spectrometer of [[ISSP|http://www.issp.u-tokyo.ac.jp]], [[the University of Tokyo|http://www.u-tokyo.ac.jp]], installed at the research reactor ~JRR-3, Tokai, Japan.  The [[GPTAS]] is an indispensable tool for investigation of structural and magnetic aspects of condensed matters, such as strongly-correlated-electron systems, ferroelectrics, frustrated magnets, quantum spin systems, quasicrystals, liquids, and so on.  With the wide energy and Q ranges, various selections of resolution functions, and well-designed sample-environment suite, GPTAS provides versatile research opportunities for the neutron scattering community.  The [[GPTAS]] is maintained by [[Taku J. Sato|http://sato.issp.u-tokyo.ac.jp/sato]] and his group.  If you wish to see the activity of the Sato group, visit [[their webpage|http://sato.issp.u-tokyo.ac.jp]].





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<br><a href="http://www.maploco.com/view.php?id=1646341"><img border=0 src="http://www.maploco.com/vmap/1646341.png" alt="Visitor Map"></a><br><a href="http://www.maploco.com/">Create your own visitor map!</a><br>
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[[GPTAS]]
BreakingNews
[[Team]]
BeamtimeSchedule
[[Specifications]]
DataAndWebcam
ManualsAndMemos
SampleEnvironment
[[Achievements]]
RenovationProgram

Links
OtherSpectrometers
[[Sato Group|http://sato.issp.u-tokyo.ac.jp]]
[[ISSP-NSL|http://neutrons.issp.u-tokyo.ac.jp]]
[[NCNR|http://www.ncnr.nist.gov]]
[[ORNL|http://neutrons.ornl.gov]]
[[Cross-section|http://www.ncnr.nist.gov/resources/n-lengths/]]

[[Japanese|http://www.issp.u-tokyo.ac.jp/labs/neutron/inst/GPTAS/index-j.html]]

Manuals and Research Memos of GPTAS:

* Manuals
** Instrument control program [[flmmu manual|http://www.issp.u-tokyo.ac.jp/labs/neutron/inst/GPTAS/filman_manual061026_3.pdf]] [in Japanese]
** Tips for the GPTAS usage [[tips|http://www.issp.u-tokyo.ac.jp/labs/neutron/inst/GPTAS/4Gtips.html]] [in Japanese]
** Notes to use cryostats at GPTAS: [[the Kawarazaki cryo manual|http://www.issp.u-tokyo.ac.jp/labs/neutron/inst/GPTAS/kawarazaki_man/index.html]] [in Japanese]

* Research Memos
** Estimation of the higher-harmonic-neutron contamination: [[halflambda|http://www.issp.u-tokyo.ac.jp/labs/neutron/inst/GPTAS/memo/halflambda/halflambda.pdf]]
** Rietveld analysis using powder diffraction data obtained using GPTAS: [[powder diffraction usage|http://www.issp.u-tokyo.ac.jp/labs/neutron/inst/GPTAS/memo/powderdiffraction/powd.html]]




Older news archive

*2008/09/18: BeamtimeSchedule is updated.
*2008/09/19: Again, the new monochromator becomes malfunctioning... #3 cycle will go with the old monochromator.  However, I assign a lot of monochromator-adjustment beamtime...
*2008/08/25: BeamtimeSchedule is updated.
*2008/08/25: New monochromator installation failed!!!  Again, we need open up the monochromator shield on the reactor shutdown period between #2 and #3 cycles.  Again, the commissioning task is necessary at the first 4 days of the #3 cycle.  But, we found that the new monochromator has very nice reflectivity, and wider mosaic, so if you do not need the energy resolution, the new monochromator will give larger flux than the existing one.  Of course, the existing one will remain, and thus you can choose one of them.
*2008/06/17: BeamtimeSchedule for #1-#3 cycles (2008) is fixed (with some open slots).  Please start your document work if your beamtime is allocated.
*2008/06/17: RenovationProgram is updated.  Experimental report for the doubly focusing analyzer is uploaded.
*2007/11/06: Beamtime schedule for #8 cycle is fixed.  Please start document work if your beamtime is allocated.  Procedures have been emailed to those who may concern.
*2007/10/22: Add map of the world at the bottom of the [[GPTAS]] webpage.  You may see where the visitors come from.
*2007/10/22: RenovationProgram is added.  I really want to make GPTAS great!
*2007/10/22: BeamtimeSchedule is updated.  Please let me know if you have some conflicts!
*2007/10/20: This new english webpage is made using TiddlyWiki.  Tiddly? Good!


Only within Tokai site:

[[5G webcam|http://172.16.21.30]]

[[C11 webcam 1|http://172.16.21.62]]
[[C11 webcam 2|http://172.16.21.61]]

[[T11 webcam|http://172.16.21.174]]
The virtues of thermal neutron beam obtained at the reactor face are the very wide divergence, and high total flux due to the huge water moderator size.  To utilize these virtues, we may relax the Q-resolution by using the double (vertical and horizontal) focusing at the monochromator as well as the analyzer.  The 4G GPTAS is now under renovation to introduce such focusing technique.  We expect the 10 or 20 times higher counting rate when the full-focusing is properly implemented!

The present status of the renovation may be summarized as follows:

* Install doubly (vertical and horizontal) focusing analyzer with diverging collimators.
** The design of the doubly focusing analyzer is finished
** Horizontally, the almost perfect Johansson geometry will be realized with very thin backing plate to reduce background originating from the incoherent scattering of the backing plate.
** Vertical focusing is fixed to 14.7meV.
** Each vertical blades will be stepping-motor controlled, so that various configuration (such as asymmetric miscut geometry) may be tried.
** The analyzer drawing (tentative, close to final) may be found at [[4G doubly-focusing analyzer|4G-DFA.pdf]].
** Installation of the analyzer has finished in the November, 2007.
** We recorded about 6 times higher counting rate for a small (phi 6.5mm) vanadium standard sample using the focusing analyzer!
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<img src="figs/fig8b.jpg" width="400" > 
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** Even with the large (phi 20mm) vanadium standard, we recorded about 2.5 times higher counting rate using the focusing analyzer!
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<img src="figs/fig8d.jpg" width="400">
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** If you are interested in the details of the focusing analyzer, click the [[ISSP-NSL internal report|pdfs/exprep-4GDFA.pdf]].



* Install doubly focusing monochromator with diverging collimators.
** The design of the doubly focusing monochromator has finished.
** The key issue is how to reduce the incoherent background from the backing materials; we decided to install BN backing plates to the PG crystals.
** At the same time, the Johansson geometry should be realized as much as possible; we decided to enable asymmetric focusing condition in addition to the symmetric one.
** The installation is currently scheduled at the mid-2008, if budget allows.




Sample environment schedule may be checked in the following webpage:

*[[Sample environment schedule|http://www.issp.u-tokyo.ac.jp/labs/neutron/accesary/yotei.html]] [in Japanese]
*Note: you have to reserve the sample environment equipments yourself.

a general-purpose triple-axis spectrometer of issp university of tokyo
4G GPTAS
The 4G GPTAS is presently a conventional neutron triple-axis spectrometer.
The basic specifications are given in the table below.

|Monochromator|Type|Rotating-shield type|
|~|Reflections|Pyrolytic graphite 002 reflections|
|~|Size |120mm(H)X170mm(V)|
|~|Focusing|Vertical focusing|
|~|Scattering angle rnage|18 < 2th_M < 47.4 degrees|
|~|k_i range|5.99 < k_i < 2.33 Ang^^-1^^|
|~|Wavelength range|1.1 < lambda_i < 2.7 Ang|
|~|Filter|Inpile PG filter (removable)|
|Sample table|Type|Air floating|
|~|Goniometer|1ton Goniometer|
|~|Tilt and Translation|Motor controlled|
|~|Beam size|40mm(H)X60mm(V) at maximum|
|~|Scattering angle range|-2 < 2th_S < 119 degrees|
|Analyzer|Type|Air floating|
|~|Reflections|Pyrolytic graphite 002 and 004 reflections|
|~|Size|190mm(H)X100mm(V)|
|~|Focusing|Vertical focusing|
|~|Filter|PG filter before analyzer (removable by hand)|
|Collimators|#1|10', 20', 40'|
|~|#2|10', 20', 40', 80'|
|~|#3|10', 20', 40', 80'|
|~|#4|10', 20', 40', 80'|
|Control Software|unified filman|flmmu|
|~|~|Temperature and magnetic field controllable|
|Sample environment|Cryostats|Orange cryo (1.5K~300K)|
|~|~|3He Hirakawa-cryo (0.4K~100K)|
|~|~|Dilution fridge (0.05K~4K)|
|~|~|GM(3.6K~300K; default)|
|~|High-temperature|High-temperature CTI|
|~|~|furnaces|
|~|Magnet|5T vertical field magnet (1.5K~300K)|
|~|~|5T horizontal field magnet (1.5K~300K)|





* Scientist(s)
** The instrumental resoponsible: Dr. Taku J. Sato:
This guy is the leader (responsible person) for the instrumentation and research team (IRT) of the 4G GPTAS.  IRT uses at most 55 days of the beamtime (about 35%) for their own research.
[img[Dr. Taku J. Sato|photos/sato.jpg]]


* Technical staff
We have a small but very powerful technician/engineer team at ISSP. The following is the list of the responsibilities related to the 4G GPTAS.
** Technical staff responsible for 4G GPTAS:Mr. Toshio Asami
[img[Mr. Toshio Asami|photos/asami.jpg]]

** Technical staff:Mr. Ryosuke Sugiura:
No picture yet!

** Head of the technician team:Mr. Yoshihisa Kawamura:
[img[Mr. Yoshihisa Kawamura|photos/kawamura.jpg]]