2.1 P.S. Super Cycles.

The super cycles are available on the PS Operations pages, where you can also find the PS weekly and yearly schedule.

2.2 East Area schedule.

The East Area schedule is maintained by the Physics coordinator Michael Hauschild (EP/OPD) Tel. 160143

 2.3 Request and Destinations.

In the PLS editor we can program the destinations given in the table below. Please check also the item 'Beam request system' in order to see what destination will be executed.

North	South		North + South
-	T7	T8	North + T7	North + T8
DN0	DS7	DS8	DNS7	DNS8
DN1	-	-	-	-

Normally we program the EASTA beam with destination DNS7, which is then automatically optimised as a function of the requests and inhibits to DN1C, DS7C or DNS7C.

The MTG has the following inputs for requests and inhibits:

Request	Name	Controlled by	Comment
North branch request	ENORD_RQ	East Area physicists	Must be used during normal operation
South branch T7 request	ESUD_RQ
South branch T8 request	ET8_RQ
East Area request	EASTA_RQ	M.C.R.	Only used during setting-up
Inhibits	Name	Controlled by	Comment
North branch inhibit	ENORD_IN	M.C.R.	Can be used if we want to prevent beam to go to the destination concerned.
South branch T7 inhibit	ESUD_INH
South branch T8 inhibit	ET8_INH

The MTG is programmed so that it can optimise the destination DNS7 (the others, not yet) as a function of the requests and inhibits without using the spare cycle. The other destinations have no optimisation algorithm yet. The following table gives an overview of all the possibilities. Please note that the actual executed destination always ends with a 'C' which stands for calculated. The column DNS7 is in red, because that destination has a real optimisation algorithm.

Request				Inhibit			Programmed destinations & Executed destinations
EASTA	ENORD	ESUD	ET8	ENORD	ESUD	ET8	DN0	DN1	DS7	DNS7	DS8	DNS8
0	1	1	1	0	0	0	DN0C	DN1C	DS7C	DNS7C	DS8C	DNS8C
0	X	1	1	1	0	0	-	-	DS7C	DS7C	DS8C	-
0	1	X	1	0	1	0	DN0C	DN1C	-	DN1C	DS8C	DNS8C
0	X	X	1	1	1	0	-	-	-	-	DS8C	-
0	1	1	X	0	0	1	DN0C	DN1C	DS7C	DNS7C	-	-
0	X	X	X	1	1	1	-	-	-	-	-	-
1	X	X	X	0	0	0	DN0C	DN1C	DS7C	DNS7C	DS8C	DNS8C
1	X	X	X	1	0	0	-	-	DS7C	DS7C	DS8C	-
1	X	X	X	0	1	0	DN0C	DN1C	-	DN1C	DS8C	DNS8C
1	X	X	X	1	1	0	-	-	-	-	DS8C	DNS8C
1	X	X	X	0	0	1	DN0C	DN1C	DS7C	DNS7C	-	-

1 = on,

0 = off,

X = don't care

Here a real example:

In the PLS we programmed an EASTA with destination DNS7.
The requests ENORD_RQ and ESUD_RQ were activated, but there was the inhibit ENORD_IN was also activated.
In the PLS Video of the CPS we can now see what happens


The group 'DEST' (destination) is still the same, but the group 'COMLN' (combined lines) gives now the destination that is executed, in this case DS7C..
The bit 'DEST_EA' is the interrupt for the Easta Area beam lines. It tells the power supplies that this users makes use of these beamlines.

The external conditions are taken into account by the MTG and make that the beam can not be executed. This will result in the execution of a spare cycle or a tail clipper (TLCP) in the PSB.

Description	Name			Type
Vacuum P.S.	VV_PS			Hardware
Proton inhibit	PROT_INH			Hardware
Extraction septum section 57	SMH57			Hardware
Extraction septum section 61	SMH61			Hardware
Extraction bump 61	BSW61			Hardware
East Area north branch inhibit	ENORD_IN			Hardware
East Area south branch T7 inhibit	ESUD_INH			Hardware
East Area south branch T8 inhibit	ET8_INH			Hardware
East Area north branch request	ENORD_RQ			Hardware/Software
East Area south branch T7 request	ESUD_RQ			Hardware/Software
East Area south branch T8 request	ET8_RQ			Hardware/Software
EASTA request	EASTA_RQ			Software

Vacuum interlock chain:

Chain name	Description	Vacuum valves list
VV_PS	All 11 valves of PS ring	PR.VVS8 / PR.VVS12 / ............... / PR.VVS100

2.5 Specific software applications.

• Slow Extraction spill control (SEControl) is an application with which you adjust the tune, chromaticity and the bumps during the slow extraction process. It is written and maintained by K. Priestnall.
• Spill Analyser is a LabView based applications that perform spectral analysis on the extracted beam (spill). It is written and maintained by J. Kuczerowski.

 

2.6 Beam instrumentation.

There is a separated page for the East Area instrumentation

  2.7 Useful information.

• Specialist settings for the CODD timing system (this should be used by specialists only !!!)
  


• Useful phone number in the East Area:

Zone	Phone numbers
T7 (secundary beam)	72024	76158
T7 (irradiation)	78262	-
T8 (Dirac datcha)	76108	76109
T9	78558	-
T9E	-	-
T10	76141	-
T11	76142	-
EBCR	78396	-
APRON	-	-

• Physics coordinator (EP/OPD): Michael Hauschild Tel: 160143
• Slow Extraction and East Area operations supervisor (PS/OP): Rende Steerenberg Tel: 164518