Record of Decision/Agreement (RODA)

Management directive regarding RODAs:

M040004-00

RODA form (MS word)

RODA.doc

RODA Status:

#	Document # - Y	Date	Principal Author	Sub-system(s)	Title	Status
1	M040005-01.pdf	23 Nov 2004	Dennis Coyne	AOS, SUS	CP location, dimensions and mass baselined	signed
2	M040006-00.pdf	23 Jan 2004	Dennis Coyne	COC, SUS	Same size FM and BS optics	signed
3	M040007-03.pdf	16 Mar 2004	Dennis Coyne	LASTI, SUS	Revised LASTI experiment plan regarding SUS	signed
4	M040020-00.pdf	27 Jan 2004	Carol Wilkinson	COC, SUS, AOS	Sapphire/fused silica downselect date	signed
5	M040088-01.pdf OBSOLETE superseded by UK scope document: M030162-A.pdf	16 Mar 2004	Dennis Coyne	SUS/US, SUS/UK, SYS	OSEM counts and responsibilities for SUS Prototypes	OBSOLETE
6	M040091-00.pdf CANCELED	23 Mar 2004	Helena Armandula	COC, IO, SUS	Covers for AdL Optics	CANCELED
7	M040099-00.pdf	30 Mar 2004	Norna Robertson	SUS, SEI, SYS, LASTI	ETM/ITM quad pendulum structure length	signed
8	M040135-03.pdf	22 Jul 2004	Carol Wilkinson	SUS/US, SUS/UK, COC/US, COC/UK	Adv. LIGO SUS/UK Scope (precursor to MOU)	signed
9	M040136-00.pdf OBSOLETE superseded by: L050025-00.pdf M050196-00.pdf	22 Apr 2004	Carol Wilkinson	AOS/US, AOS/Aus	MOU between the US and ACIGA groups for the AdL Gingin High Power Testing Program	OBSOLETE
10	M040189-00.pdf	20 Jun 2004	Peter Fritschel	ISC, SUS, AOS, SEI	Output Mode Cleaner to be a monolithic cavity	signed
11	M040174-00.pdf	28 Jul 2004	Carol Wilkinson	SUS/US, SUS/UK	SUS/UK Scope in Controls Prototype	signed
12	M040279-03.pdf	25 Aug 2004	Justin Greenhalgh	SUS/UK, SUS/US	Design work at RAL in parallel with the quad controls prototype development	signed
13	M040283-01.pdf OBSOLETE superceeded by: M050397	8 Sep 2004	GariLynn Billingsley	SUS, COC	Sapphire and Fused Silica Baseline Optic Sizes	OBSOLETE
14	M040387-00.pdf OBSOLETE superceeded by: M050397	30 Nov 2004	GariLynn Billingsley	COC, SUS	Baseline Recycling Mirror Dimensions	OBSOLETE
15	M050174-02.doc OBSOLETE superseded by: section 1.1.6.1.1 “Alignment Reference Features” of the ICD: SUS/UK – AOS, E050169-01	19 May 2005	Ken Mason	AOS/IAS, SUS	Requirement for SUS Features to Aid in Initial Alignment	OBSOLETE
16	M050175-01.pdf	5 April 2005	Ken Mason	AOS/IAS, COC, SUS	Initial Alignment Requirements on COC Coating Reflectivity	signed
17	M050397-03.pdf	4 Apr 2008 rev. -02 23 Aug 2005	GariLynn Billingsley	COC, SYS, SUS/UK, SUS/US	Core Optic sizes, including TMs, BS, FM and RM supercedes M040283-01 and M040387-00 rev.-03 needed to be consistent with M070120-02 regarding BS thickness	signed
18	M050418-01.pdf	16 Nov 2005	Tim Hayler	SUS, AOS	Separation of chains in quad suspensions	signed
19	M060017-00.pdf	31 Jan 2006	Norna Robertson	SUS, SYS	Steel Wires for the Mode Cleaner Suspensions	signed
20	M060032-00.pdf	28 Feb 2006	Dennis Coyne	AOS, ISC, SUS, COC	Eliminate the Photon Actuator	signed
21	M060308-00.pdf	6 Oct 2006	Peter King	PSL, SYS	Change High Power Laser Front End to a MOPA	signed
22	M060315-00.pdf	25 Oct 2006	Janeen Romie	SUS, IO, COC	No Flats on IMC & RM Optics	signed
23	M060305-01.pdf	14 Nov 2006	Phil Willems	AOS, SUS	CP Dimensions	signed
24	M070055-00.pdf	17 Apr 2007	Dave Reitze	IO, COC, SUS	Dimensions of the Large MMT Mirror (MMT3) and the Recycling Mirrors (PRM & SRM) for the Marginally Stable Recycling Cavities	Signed
25	M060043-01.pdf	23 Apr 2007	Justin Greenhalgh	SUS, ISC	Determine need for OSEM sensors for UIM and PUM in the ETM and ITM and determine need for OSEM cable electrical shielding	signed
26	M060300-02.pdf	29 May 2008	Justin Greenhalgh	SUS, ISC	BS & FM suspensions: No reaction chains, B-OSEMs and ½ size magnets	signed
27	M070119-00.pdf	10 Jul 2007	Dennis Coyne	SEI, SUS, IO, ISC, SYS	HAM Optics Table Height	signed
28	M070120-02.pdf	11 Jul 2007	Dennis Coyne	SUS, SYS	BS Optic geometry, Wedge Orientation & Metal Wires	signed
29	M080022-01.pdf	24 Mar 2008	Dennis Coyne	AOS, SUS, COC	CP and ETM reaction mass have same mass (and CP has no wedge or flats)	signed
30	M080038-03.pdf	26 Mar 2008	Dennis Coyne	COC, IO, AOS, SUS	Responsibilities for Elements of the Stable Recycling Cavities	signed
31	M080042-00.pdf	8 Apr 2008	GariLynn Billingsley	SUS, COC, AOS, ISC	Transmission requirements for ETM and ERM	signed
32	M080057-00.pdf	29 Apr 2008	Mike Smith	AOS, SUS, SYS	Minimum spacing between FM and ITM	signed
33	M080041-00.pdf	3 Apr 2008	GariLynn Billingsley	COC, SUS, AOS	Thickness of PR3 and SR3 and symmetric wedge of same	signed
34	M080109-00.pdf	27 Jun 2008	Norna Robertson	SUS, FMP, INS	No Fibre Pulling Machine at LLO	Signed
35	M080134-00.pdf	11 Jul 2008	Norna Robertson	SUS, ISC	E/ITM and BS/FM pitch frequencies and d-values	signature process

Pending RODAs in addition to the unsigned drafts above:

1) Dummy metal masses to be provided with every suspension (or is this clear in the work scope already defined for the WBS for the UK?) Do we need one for each suspension? One per site? [Norna, Justin]

2) HAM-ISI requirements have been revised per Peter F.’s analysis – document in RODA [Dennis]

3) Seismic Platform Interferometer (SPI) interfaces to ITM/ETM and BS suspensions [Dennis, Justin, Matt]

4) AOS to provide cameras with sufficient resolution to determine beam size – already part of AOS scope?. [Dennis, Mike S.]

5) The inclusion of B-OSEMs needed in production for tip/tilt mirrors and extra triples (for the stable recycling cavity) will be handled as a reduction in the delivered spare count. If the project later decides it needs more B-OSEMs, the Lab will start up the production again. The IO group may need the lower noise B-OSEMs on SOS. The B-OSEM count has implications for drive electronics and channels as well. [Dave R., Justin, Norna, Rolf]

6) IO may need high dynamic range (high force) coil drives for tip/tilt stages used for beam stabilization (no local sensing). [Dave R., Rich A.]

7) SR2 optical transmission properties for a Hartmann probe beam [Phil W., Dave R.]

Last revised: 13 Jul 2008, 18:52 US-PT