HRRL CHIPS Logbook - Revision history

Foretony: /* Job List to Put HRRL Back */

2011-09-06T22:40:12Z

Job List to Put HRRL Back

← Older revision		Revision as of 22:40, 6 September 2011
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	= Job List to Put HRRL Back =		= Job List to Put HRRL Back =

	1.) Map Dipole(s). Do we have an old map of the the first Dipole (D1)		1.) Map Dipole(s). Do we have an old map of the the first Dipole (D1) Fine map at 1.6 MeV positron bend setting. 3 days + weekend = total of 5 days (Get probe Tuesday night use it Wednesday to Sunday night).

	2.) Bolt the FC table down to the floor, install FC and shielding.		2.) Bolt the FC table down to the floor, install FC and shielding.

Foretony: /* Job List to Put HRRL Back */

2011-09-06T22:32:53Z

Job List to Put HRRL Back

← Older revision		Revision as of 22:32, 6 September 2011
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	= Job List to Put HRRL Back =		= Job List to Put HRRL Back =

	1. ~~Install gun~~		1.) Map Dipole(s). Do we have an old map of the the first Dipole (D1)

	2. ~~Put dipole magnet on~~		2.) Bolt the FC table down to the floor, install FC and shielding.

	3. ~~Put the energy jaws on~~.		3.) Install Camera for OTR flag (Flag1), check focus and orthogonality to window.

	4. ~~Put the~~ Flag on.		4.) Install slits(Jaws)

			5.) assemble and check wiring Quads (Q7)

			6.) Install YaG Flag 2.

			7.) Install dipole magnet (D2)

			8.) Install FC after D2 on 45 degree line

			9.) Install 90 degree line though the wall

			10.) Install Gun

	~~5. Bolt the FC table down to the floor.~~

	== Install Gun ==		== Install Gun ==

Setisadi: /* Put the Flag on */

2011-09-06T22:19:28Z

Put the Flag on

← Older revision		Revision as of 22:19, 6 September 2011
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	== Put the Flag on ==		== Put the Flag on ==

	1. ~~2 Connecting Nipples (need~~ to ~~check will~~ it ~~make~~ the ~~beamline be too long, so that we don't have space).~~		1. How to stabilize it on the table?

	2. ~~How~~ to ~~stabilize it on~~ the ~~table?~~		2. Parts needed to construct the beamline:

			a) A 8-Hole Flange adapter for energy jaw.

			b) A bellow with one 8-Hole and one 10-Hole Flanges.

			c) A beampipe 30 cm long with one 8-Hole and one 10-Hole Flanges.

	== Bolt the FC Table Down to The Floor ==		== Bolt the FC Table Down to The Floor ==

Setisadi: /* Put the Flag on */

2011-09-06T22:16:06Z

Put the Flag on

← Older revision		Revision as of 22:16, 6 September 2011
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	== Put the Flag on ==		== Put the Flag on ==

	1. 2 Connecting ~~flanges~~ (need to check will it make the beamline be too long, so that we don't have space).		1. 2 Connecting Nipples (need to check will it make the beamline be too long, so that we don't have space).

	2. How to stabilize it on the table?		2. How to stabilize it on the table?

Setisadi at 17:45, 6 September 2011

2011-09-06T17:45:24Z

← Older revision		Revision as of 17:45, 6 September 2011
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	3.) We need higher current power supplies for the quads. Yujong will look into how high they should go.		3.) We need higher current power supplies for the quads. Yujong will look into how high they should go.


			= Job List to Put HRRL Back =

			1. Install gun

			2. Put dipole magnet on

			3. Put the energy jaws on.

			4. Put the Flag on.

			5. Bolt the FC table down to the floor.

			== Install Gun ==

			== Put Dipole Magnet On ==

			Magnet need to be mapped.

			== Put the Energy Jaws On ==

			1. Connecting flange

			2. Table or mounting system

			== Put the Flag on ==

			1. 2 Connecting flanges (need to check will it make the beamline be too long, so that we don't have space).

			2. How to stabilize it on the table?

			== Bolt the FC Table Down to The Floor ==

			Not using a bellow between FC and Flag?



	Go back to [[Positrons]]		Go back to [[Positrons]]

Foretony: /* 2/28/11 */

2011-03-28T22:51:03Z

2/28/11

← Older revision		Revision as of 22:51, 28 March 2011
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	HRRL team issues		HRRL Positron team issues:

	1.) HRRL beam stability. The beam spot was moving intermittently in the beam left-right direction during the last round of emittance measurements. The jitter became less as the energy was increased from 11 MeV up to 16 MeV.		1.) HRRL beam stability. The beam spot was moving intermittently in the beam left-right direction during the last round of emittance measurements. The jitter became less as the energy was increased from 11 MeV up to 16 MeV.

Foretony: /* 2/28/11 */

2011-03-28T22:50:42Z

2/28/11

← Older revision		Revision as of 22:50, 28 March 2011
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	~~1.) HRRL beam stability, spot jitters less at higher energy.~~		Doug' Agenda

	2.) ~~Dan Dale will determine location of brehmsstrahlung target~~ (~~2m from wall?~~).		1) Bremsstrahlung end-station (polarized and unpolarized) - must be readily interchangable with the positron end-station.

			Dan Dale will be consulted to determine the location of a bremsstrahlung target. The quads on the 90 degree line may need to be moved closer together if Dan Dale requires that the target be located about 2m before the wall to the experimental cell.

	~~1) Bremsstrahlung end-station (polarized and unpolarized) - must be readily interchangable with the positron end-station.~~

	2) Electron beam optics must enable high transmission to bremsstrahlung end-station when we are running in electron mode.		2) Electron beam optics must enable high transmission to bremsstrahlung end-station when we are running in electron mode.

			Id was decided to look into purchasing a FC which will be insertable on the 90 degree line in order to assist in the beam line turning and go beyond the maximize transmission experienced by Dr. Hunt.



	3) Alignment and vacuum boxes on 45-degree magnets. Do the vacuum boxes have to be rebuilt? Does the gun need to be taken off?		3) Alignment and vacuum boxes on 45-degree magnets. Do the vacuum boxes have to be rebuilt? Does the gun need to be taken off?


			It was decided that John ellis will design vacuum boxes for the kiwi dipole that have larger beam pipe inlets and outlets to help with transmission. An outside vendor may be used to built them.

			The Gun will be removed for alignment using a procedure from Khalid.



	4) Full, permanent beam optics, steering, inserts parameters completely set so John can put together a final design. Is everyone on the same page?		4) Full, permanent beam optics, steering, inserts parameters completely set so John can put together a final design. Is everyone on the same page?

			John Ellis has the dimensions of all components and Yujong will confirm that they are in the correct locations. Stands will be fixed to the floor and some flanges will be constrained.


	5) Water-cooled W-target in vacuum - is this necessary? How do we protect vacuum systems, the gun, etc.? How do we design to minimize potential for failure?		5) Water-cooled W-target in vacuum - is this necessary? How do we protect vacuum systems, the gun, etc.? How do we design to minimize potential for failure?


			A gate valve was deemed to be too slow to risk water contamination of the HRRL gun. Alternative target designs will be pursued. Nitrogen was an acceptable coolant inside the vacuum and may be used.


			John Ellis will design a vacuum chamber for a tungsten target.


			HRRL team issues

			1.) HRRL beam stability. The beam spot was moving intermittently in the beam left-right direction during the last round of emittance measurements. The jitter became less as the energy was increased from 11 MeV up to 16 MeV.

			2.) A request was made to improve the ability to adjust the position of beam line magnets. The current system is good but the desired improvements need to be identified. Some options were discussed but the conclusion was to leave the system as it is now until the alignment has identified what needs to be changed.

			3.) We need higher current power supplies for the quads. Yujong will look into how high they should go.



	Go back to [[Positrons]]		Go back to [[Positrons]]

Foretony: /* 5/20/10 */

2011-03-28T19:58:58Z

5/20/10

← Older revision		Revision as of 19:58, 28 March 2011
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	6.) Run simulation on Brems for several different lead cylinder thicknesses according to the lead pieces in the HRRL.		6.) Run simulation on Brems for several different lead cylinder thicknesses according to the lead pieces in the HRRL.

			=2/28/11=


			Meeting at Physics to discuss HRRL



			1.) HRRL beam stability, spot jitters less at higher energy.

			2.) Dan Dale will determine location of brehmsstrahlung target (2m from wall?).


			1) Bremsstrahlung end-station (polarized and unpolarized) - must be readily interchangable with the positron end-station.

			2) Electron beam optics must enable high transmission to bremsstrahlung end-station when we are running in electron mode.

			3) Alignment and vacuum boxes on 45-degree magnets. Do the vacuum boxes have to be rebuilt? Does the gun need to be taken off?

			4) Full, permanent beam optics, steering, inserts parameters completely set so John can put together a final design. Is everyone on the same page?

			5) Water-cooled W-target in vacuum - is this necessary? How do we protect vacuum systems, the gun, etc.? How do we design to minimize potential for failure?



	Go back to [[Positrons]]		Go back to [[Positrons]]

Oborn: /* 5/20/10 */

2010-05-20T23:07:24Z

5/20/10

← Older revision		Revision as of 23:07, 20 May 2010
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	By June 2 have a beamline layed out for emittance test.		By June 2 have a beamline layed out for emittance test.


			6.) Run simulation on Brems for several different lead cylinder thicknesses according to the lead pieces in the HRRL.

	Go back to [[Positrons]]		Go back to [[Positrons]]

Oborn: /* 5/20/10 */

2010-05-20T23:05:46Z

5/20/10

← Older revision		Revision as of 23:05, 20 May 2010
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	Target date for emittance measurement is July 26-July 30.		Target date for emittance measurement is July 26-July 30.

	Must begin constructing magnet stands by ~~Jul~~ 5 assuuming 2 weeks to build and 1 week to align. Stands for 2 Quads, 1 FC, and YaG infrastructure.		Must begin constructing magnet stands by July 5 assuuming 2 weeks to build and 1 week to align. Stands for 2 Quads, 1 FC, and YaG infrastructure.

	By June 2 have a beamline layed out for emittance test.		By June 2 have a beamline layed out for emittance test.

	Go back to [[Positrons]]		Go back to [[Positrons]]