Groups and Machines

Figure: Overview on GSI accelerators. Click here for a larger image.

Overview

Accelerator equipment relevant for the control system is organized in groups. The Data Master of the timing system generates command messages for groups, but not for individual equipment. The equipment within a group belongs together conceptually. An example of a group might a ring machine. The ordering of equipment into groups is defined by the way the accelerator complex is operated. With the new timing system, the group ID is analogous to a machine ID.

In principle, the ordering of equipment into groups depends on the role of the equipment for the production of a specific beam. There are two schools of thought.

CCT (Controls Coordination)

• A group is a collection of equipment that always belongs together.
• A specific equipment may only be member of one group.
• A specific equipment always belongs to the same group (that assignment to a group does not depend on a beam).
• Many groups (> 200) are required for the operation of the machine.

Timing Team

• What belongs together happens together.
• A specific equipment may be member of more than one group.
• When the operational concept of the machine is changed, new groups can be introduced and specific equipment can join another group too.
• The number of existing groups may be large
• The number of groups for the production of specific beams is small.

As the view of the CCT can be seen as a special case for the more general view by the Timing Team. Both concepts can coexist, as long as the principle what belongs together happens together is not broken. This implies, that a timing receiver node must not (never!) be configured for more than one group at a time. In the long term, a migration to the concept of the Timing Team is possible. Then, a timing receiver node can be configured for many groups at the same time.

Group IDs

A group ID has 12 bit. This is divided into two ranges

• 0d0000..0d1023 (0x000-0x3ff): operative, assignment by CCT
• 0d1024..0d4095 (0x400-0xfff): reserved, assignment by TOS

Fig 1: Timing Groups. Shown are rings (yellow), electron coolers (blue), ion sources (orange), UNILAC MIL-Timing sections (magenta), intersections (grey) and targets (green). A timing group (solid arrow) is named using the scheme origin_TO_destination, see table below. The group ID GID is given in decimal and hex on the right side of an arrow (rings, electron coolers: inside box). Dashed arrows are used to guide the eye and do not represent timing groups. Boxes with dark green or red (pink) borders denote accelerators or TVS (NE) areas, but the assignment of nodes to accelerators might not be correct for all cases. The red box indicated timing groups that must only be used within a distinct White Rabbit network dedicated to injectors. Since 2023 so called 'shared groups' exist, that are marked by blue colored arrows; here the accelerator is indicated next to the group number. Please note, that some adjacent GIDs are hex-aligned to allow for more efficient prefix matching.

Groups for Operation

0dGID	0xGID	Name	Injector	Description
200	C8	YRT1_TO_YRT1LQ1		from ion source 1 to merging quadrupole
201	C9	YRT1LQ1_TO_YRT1LC1		from merging quadrupole at ion sources to chopper
202	CA	YRT1LC1_TO_YRT1MH2		injector from chopper to merging dipole
203	CB	YRT1MH2_TO_CRYRING		from merging dipole to ring
210	D2	CRYRING_RING		CRYRING ring
211	D3	CRYRING_COOLER		CRYRING electron cooler
212	D4	CRYRING_TO_YRE		Experiment line from CRYRING to YRE
300	12C	SIS18_RING		SIS18 ring
301	12D	SIS18_COOLER		SIS18 electron cooler
310	136	SIS100_RING		SIS100 ring
340	154	ESR_RING		ESR ring
341	155	ESR_COOLER		ESR electron cooler
345	159	ESR_TO_HTR		ESR to HITRAP
350	15E	CR_RING		CR ring
360	168	HESR_RING		HESR ring
400	190	TO_BE_DISCUSSED		PLINAC proton source
448	1C0	PZU_QR	I	UNILAC Timing - Source Right
449	1C1	PZU_QL	I	UNILAC Timing - Source Left
450	1C2	PZU_QN	I	UNILAC Timing - Source High Charge State Injector (HLI)
451	1C3	PZU_UN	I	UNILAC Timing - High Charge State Injector (HLI)
452	1C4	PZU_UH	I	UNILAC Timing - High Current Injector (HSI)
453	1C5	PZU_AT	I	UNILAC Timing - Alvarez Cavities
454	1C6	PZU_TK	I	UNILAC Timing - Transfer Line
464	1D0	GTK7BC1L_TO_PLTKMH2__GS		GTK7BC1L to PLTKMH2 - shared group controlled by SIS18 accelerator
465	1D1	GTK7BC1L_TO_PLTKMH2__GU	I	GTK7BC1L to PLTKMH2 - shared group controlled by UNILAC accelerator
466	1D2	PLTKMH2_TO_SIS18__GS		PLTKMH2 to SIS18 - shared group controlled by SIS18 accelerator
467	1D3	PLTKMH2_TO_SIS18__GU	I	PLTKMH2 to SIS18 - shared group controlled by UNILAC accelerator
500	1F4	SIS18_TO_GTS1MU1		SIS extraction to GTS1MU1
501	1F5	GTS1MU1_TO_GTE3MU1		GTS1MU1 to GTE3MU1
502	1F6	GTE3MU1_TO_GTS6MU1		GTE3MU1 to GTS6MU1
503	1F7	GTS6MU1_TO_GTS6MU1		GTS6MU1_TO_GTS6MU1
504	1F8	GTS6MU1_TO_ESR		GTS6MU1 to ESR
505	1F9	GTS1MU1_TO_GTS3MU1		GTS1MU1 to GTS3MU1
506	1FA	GTS3MU1_TO_HHD		GTS3MU1 to HHD Dump
507	1FB	GTS3MU1_TO_GHFSMU1		GTS3MU1 to GHFSMU1
508	1FC	GHFSMU1_TO_HFS		Experiment line to HFS
509	1FD	GHFSMU1_TO_GTS6MU1		GHFSMU1 to GTS6MU1
510	1FE	GTS6MU1_TO_GTS7MU1		GTS6MU1 to GTS7MU1
511	1FF	GTE3MU1_TO_GHHTMU1		GTE3MU1 to GHHTMU1
512	200	GHHTMU1_TO_HHT		Experiment line to the high temperature experiment HHT
513	201	GHHTMU1_TO_GTH3MU1		GHHTMU1 to GTH3MU1
514	202	GTH3MU1_TO_GTP1MU1		GTH3MU1 to pion branch GTV2MU3
515	203	GTP1MU1_TO_HADES		Experiment line to the electron-positron-detector HADES (High Acceptance Di-Electron Spectrometer)
516	204	GTH3MU1_TO_GTS7MU1		GTH3MU1 to GTS7MU1
517	205	GTS7MU1_TO_GTH4MU1		GTS7MU1 to GTH4MU1
518	206	GTH4MU1_TO_HTM		Experiment line to the particle therapy experiment HTM
519	207	GTH4MU1_TO_GTH4MU2		GTH4MU1 to GTH4MU2
520	208	GTP1MU1_TO_GTH4MU2		GTP1MU1 to GTH4MU2 pion transfer line
521	209	GTH4MU2_TO_GTV1MU1		GTH4MU2 to GTV1MU1
522	20A	GTV1MU1_TO_GHTDMU1		GTV1MU1 to GHTDMU1
523	20B	GTV1MU1_TO_GTV2MU2		GTV1MU1 to GTV2MU2
524	20C	ESR_TO_GTV2MU2		ESR extraction to TV2MU2
525	20D	GHTDMU1_TO_HTC		Experiment line to nuclear reaction experiments at HTC (exotic nuclei and nuclear dynamics)
526	20E	GTV2MU2_TO_GTV2MU3		GTV2MU2 to GTV2MU3
527	20F	GTV2MU3_TO_HTA		Experiment line to HTA
528	210	GTV2MU3_TO_GHTBMU1		GTV2MU3 to GHTBMU1
529	211	GHTBMU1_TO_HTP		Experiment line to HTP Dump
530	212	GHTDMU1_TO_HTD		Experiment line to HTD
531	213	GHTBMU1_TO_YRT1MH2		GHTBMU1 to YRT1MH2
592	250	UR_TO_GUH1MU2	I	HSI LEBT Right Source
593	251	UL_TO_GUH1MU2	I	HSI LEBT Left Source
595	253	UN_TO_GUN3BC1L	I	HLI LEBT
608	260	GUH1MU2_TO_GUH2BC1L	I	GUH1MU2 to GUH2BC1L
609	261	GUH2BC1L_TO_GUS3MK1	I	HSI
610	262	GUS3MK1_TO_GUS4MK6	I	GUS3MK1 to GUS4MK6
611	263	GUS3MK1_TO_GUS3MK2	I	GUS3MK1 to GUS3MK2
612	264	GUS3MK2_TO_GUS4MK6	I	GUS3MK2 to GUS4MK6
613	265	GUS3MK2_TO_US3	I	Diagnostic line US3
624	270	GUN3BC1L_TO_GUN6MU2	I	HLI
625	271	GUN6MU2_TO_GUS4MK6	I	GUN6MU2 to GUS4MK6
626	272	GUN6MU2_TO_UCW	I	Development line to CW
640	280	GUS4MK6_TO_GUT1MK0	I	Poststripper
641	281	GUT1MK0_TO_GUT1MK1	I	GUT1MK0 to GUT1MK1
642	282	GUT1MK1_TO_GUT2MK2	I	GUT1MK1 to GUT2MK2
656	290	GUT1MK1_TO_GTK3MV1	I	GUT1MK1 to GTK3MV1
657	291	GTK3MV1_TO_GTK3MV4	I	GTK3MV1 to GTK3MV4
658	292	GTK3MV1_TO_GTK3MV3	I	GTK3MV1 to GTK3MV3
659	293	GTK3MV3_TO_GTK3MV4	I	GTK3MV3 to GTK3MV4
660	294	GTK3MV3_TO_TKD	I	Diagnostic line TKD
661	295	GTK3MV4_TO_GTK7BC1L	I	GTK3MV4 to GTK7BC1L
672	2A0	GUT1MK0_TO_GUM2MU5	I	GUT1MK0 to GUM2MU5
673	2A1	GUM2MU5_TO_UM1	I	Experiment line to UM1
674	2A2	GUM2MU5_TO_GUM3MU6	I	GUM2MU5 to GUM3MU6
675	2A3	GUM3MU6_TO_UM2	I	Experiment line to UM2
676	2A4	GUM3MU6_TO_UM3	I	Experiment line to UM3
677	2A5	GUT2MK2_TO_GUZCMU1	I	GUT2MK2 to GUZCMU1
678	2A6	GUZCMU1_TO_UZ6	I	Experiment line to UZ6
679	2A7	GUZCMU1_TO_UZ7	I	Experiment line to UZ7
680	2A8	GUT2MK2_TO_UY7	I	Experiment line to UY7
688	2B0	GUT2MK2_TO_GUXAMU3	I	GUT2MK2 to GUXAMU3
689	2B1	GUXAMU3_TO_GUXAMU4	I	GUXAMU3 to GUXAMU4
690	2B2	GUXAMU3_TO_GUXCMU3	I	GUXAMU3 to GUXCMU3
691	2B3	GUXAMU4_TO_GUXBMU5	I	GUXAMU4 to GUXBMU5
692	2B4	GUXAMU4_TO_UX3	I	Experiment line to UX3
693	2B5	GUXBMU5_TO_UX2	I	Experiment line to UX2
694	2B6	GUXCMU3_TO_GUXFMU1	I	GUXCMU3 to GUXFMU1
695	2B7	GUXCMU3_TO_UX6	I	Experiment line to UX6
696	2B8	GUXFMU1_TO_GUXHMU2	I	GUXFMU1 to GUXHMU2
697	2B9	GUXFMU1_TO_UX7	I	Experiment line to UX7
698	2BA	GUXHMU2_TO_UX0	I	Experiment line to UX0
699	2BB	GUXHMU2_TO_UX8	I	Experiment line to UX8
928	3A0	SIS18_B2B_EXTRACT		B2B internal: extraction from SIS18
929	3A1	SIS18_B2B_ESR		B2B internal: transfer SIS18 to ESR
930	3A2	SIS18_B2B_SIS100		B2B internal: transfer SIS18 to SIS100
931	3A3	SIS18_B2B_CRYRING		B2B internal: transfer SIS18 to CRYRING
933	3A5	ESR_B2B_EXTRACT		B2B internal: extraction from ESR
934	3A6	ESR_B2B_CRYRING		B2B internal: transfer ESR to CRYRING
938	3AA	CRYRING_B2B_EXTRACT		B2B internal: extraction from CRYRING
944	3B0	SIS100_B2B_EXTRACT		B2B internal: extraction from SIS100
1216	4C0	PZU_F50		TOS internal: information related to UNILAC 50 Hz synchronization

Table 1: Group IDs for operation. First (second) column display GIDs in decimal (hex) representation. The name and description are listed in the third and fifth column. A capital letter 'I' in the fourth column marks timing groups that are exclusively used in a distinct White Rabbit network dedicated to the injector. Please note, that some adjacent GIDs are hex-aligned to allow for more efficient prefix matching. The table has been extracted from the Controls Data Base on 23 October 2024.

Groups for Testing

For testing the timing system, some test groups are defined for internal use.

GID	Name	Description
0xFFF	LocalGroup	never sent by data master

Table 2: Some groups for testing.

Supplementary Material

UNILAC

Figure: Overview on UNILAC. Figure adopted from here. Click here for larger image.

Transfer Channel (TK)

Figure: Overview on Transfer Channel between UNILAC and SIS18. The merging magnet 'PLTKMH2' from the pLinac is indicated as 'T??MU?'. Figure adopted from Accnomen Wiki. Click here for larger image.

SIS18, ESR, GSI-HEBT ('HEST')

Figure: (Outdated) overview on the GSI facility and some optic elements (figure by Benno and others provided through Regine Pfeil, GSI). Click here for larger image.

Figure: (Updated but less detailled) overview on the GSI facility and some optic elements (figure by uknown author, GSI). Click here for larger image.

Figure: Transer line from SIS18 to ESR. Figure adopted from Accnomen Wiki. Click here for larger image.

Figure: Transer lines FRS (HHT). Figure adopted from Accnomen Wiki. Click here for larger image.

Figure: Transfer line from SIS18 to target hall (HHT and HAD). Figure adopted from Accnomen Wiki. Click here for larger image.

Figure: Transfer lines target hall. Figure adopted from Accnomen Wiki. Click here for larger image.

Figure: Transfer line from ESR to HITRAP.

CRYRING

Figure: Overview on CRYRING (figure provided through Frank Herfurth, GSI)

NE Zones

Figure: Overview on the NE areas (safety zones) at GSI (figure by some people provided through Regine Pfeil, GSI). Click here for larger image.

pLinac

Figure: Overview on pLinac. The merging magnet 'PLTKMH2' into the Transfer Channel (TK, section 8) is indicated as 'PLTK' (figure provided through Accnomen Wiki, GSI)

-- DietrichBeck - 24 October 2024