Target Lab - Revision history

Pbarber: /* Pure Lithium Targets */

2025-07-14T14:27:13Z

Pure Lithium Targets

← Older revision		Revision as of 10:27, 14 July 2025
Line 28:		Line 28:
	* It is not uncommon for the polyvinyl formal backings to break during evaporation. It is best to have multiple backings on the target ladder to increase the odds of getting a usable target.		* It is not uncommon for the polyvinyl formal backings to break during evaporation. It is best to have multiple backings on the target ladder to increase the odds of getting a usable target.
	* The polyvinyl formal backing can contribute carbon, hydrogen, and oxygen until it burns away.		* The polyvinyl formal backing can contribute carbon, hydrogen, and oxygen until it burns away.
	* ~~Isotopically~~ enriched ~~lithium is available~~.		* 7Li (natural) and 6Li (enriched) can not be made at the same time. If you need both, two production runs have to be made separately.
	* Typical lithium thickness ranges 50 to 250 ug/cm2.		* Typical lithium thickness ranges 50 to 250 ug/cm2.
	* The lithium targets must be at the bottom of the target ladder.		* The lithium targets must be at the bottom of the target ladder.

Pbarber: /* Carbon */

2025-02-12T16:33:05Z

Carbon

← Older revision		Revision as of 12:33, 12 February 2025
Line 39:		Line 39:
	Carbon foils are made by carbon arc evaporation. Foils of 10, 20, 30, 50, 100, 150, 200, and 250 ug/cm2 are currently available on the small, "standard" FSU target frames. 50 and 100 ug/cm2 foils are available on slides and can be mounted on any frame upon request. If your experiment will tolerate it, these can be folded over the frame to produce double thickness, achieving 200 ug/cm2 as well. Other thickness will be made in future.		Carbon foils are made by carbon arc evaporation. Foils of 10, 20, 30, 50, 100, 150, 200, and 250 ug/cm2 are currently available on the small, "standard" FSU target frames. 50 and 100 ug/cm2 foils are available on slides and can be mounted on any frame upon request. If your experiment will tolerate it, these can be folded over the frame to produce double thickness, achieving 200 ug/cm2 as well. Other thickness will be made in future.

	Carbon stripper foils for the Tandem are also manufactured by carbon arc evaporation. These are foils of nominal ~~190~~ Angstroms thick and are coated with collodion to facilitate handling during installation. A carbon stripper foil frame has two apertures. The Tandem holds nominally 300 frames, thus providing 600 foil positions. Students are sometimes called upon to mount foils on the frames and/or install the frames in the Tandem.		Carbon stripper foils for the Tandem are also manufactured by carbon arc evaporation. These are foils of nominal 200 Angstroms thick and are coated with collodion to facilitate handling during installation. A carbon stripper foil frame has two apertures. The Tandem holds nominally 300 frames, thus providing 600 foil positions. Students are sometimes called upon to mount foils on the frames and/or install the frames in the Tandem.

	== Limited Low Melting Point Material Targets ==		== Limited Low Melting Point Material Targets ==

Pbarber at 16:32, 12 February 2025

2025-02-12T16:32:03Z

← Older revision		Revision as of 12:32, 12 February 2025
Line 24:		Line 24:

	Personnel requesting pure lithium targets should be aware of the following:		Personnel requesting pure lithium targets should be aware of the following:
	* Historically, these have only been manufactured on frames with a nominal 0.375" ( 10 mm ) aperture. Requests for larger apertures will require technique development and success is not assured.		* Historically, these have only been manufactured on frames with a nominal 0.375" ( ~ 10 mm ) aperture. Requests for larger apertures will require technique development and success is not assured.
	* The chamber in which the experiment will be performed must be capable of accepting one of the two vacuum target barrels available, or a new barrel must be designed/manufactured. As of this writing (15 Sep 2023) the original Yale SPS Chamber, the TR1 Scattering Chamber, the CATRiNA chamber and the newly installed SPS "Wild CeBrAs" chamber qualify.		* The chamber in which the experiment will be performed must be capable of accepting one of the two vacuum target barrels available, or a new barrel must be designed/manufactured. As of this writing (15 Sep 2023) the original Yale SPS Chamber, the TR1 Scattering Chamber, the CATRiNA chamber and the newly installed SPS "Wild CeBrAs" chamber qualify.
	* It is not uncommon for the polyvinyl formal backings to break during evaporation. It is best to have multiple backings on the target ladder to increase the odds of getting a usable target.		* It is not uncommon for the polyvinyl formal backings to break during evaporation. It is best to have multiple backings on the target ladder to increase the odds of getting a usable target.

Pbarber: /* Pure Lithium Targets */

2024-08-09T14:54:16Z

Pure Lithium Targets

← Older revision		Revision as of 10:54, 9 August 2024
Line 21:		Line 21:
	== Pure Lithium Targets ==		== Pure Lithium Targets ==

	One of the unique capabilities available here at FoxLab is the ability to produce pure pseudo-free-standing lithium targets. Lithium metal is evaporated onto a polyvinyl formal backing which burns away when placed in beam. These targets are transported under static vacuum from the evaporator to the experimental chamber.		One of the unique capabilities available here at FoxLab is the ability to produce pure pseudo-free-standing lithium targets. Lithium metal is evaporated onto a polyvinyl formal resin backing which burns away when placed in beam. These targets are transported under static vacuum from the evaporator to the experimental chamber.

	Personnel requesting pure lithium targets should be aware of the following:		Personnel requesting pure lithium targets should be aware of the following:

Pbarber: /* Target Frames */

2023-11-01T14:55:01Z

Target Frames

← Older revision		Revision as of 10:55, 1 November 2023
Line 10:		Line 10:
	File:standard_fsu_tgt_frame.pdf\|Original "standard" FSU Target Frame		File:standard_fsu_tgt_frame.pdf\|Original "standard" FSU Target Frame
	File:Large fsu tgt frame.pdf\|Large FSU Target Frame		File:Large fsu tgt frame.pdf\|Large FSU Target Frame
	File:Sps_fsu_tgt_frame_375.pdf\|SPS(old Yale) target frame w/ 0.375" aperture		File:Sps_fsu_tgt_frame_375.pdf\|SPS (old Yale) target frame w/ 0.375" aperture
	File:Sps_fsu_tgt_frame_500.PDF\|SPS(old Yale) target frame w/ 0.500" aperture		File:Sps_fsu_tgt_frame_500.PDF\|SPS (old Yale) target frame w/ 0.500" aperture
	File:Sps_x_fsu_tgt_frame.pdf\|Adapter for mounting small FSU frame on SPS(old Yale) target ladder		File:Sps_x_fsu_tgt_frame.pdf\|Adapter for mounting small FSU frame on SPS(old Yale) target ladder
	File:Stripper_foil_frame.pdf\|Tandem Terminal Stripper Foil Frame		File:Stripper_foil_frame.pdf\|Tandem Terminal Stripper Foil Frame

Pbarber: /* Pure Lithium Targets */

2023-09-15T13:08:24Z

Pure Lithium Targets

← Older revision		Revision as of 09:08, 15 September 2023
Line 25:		Line 25:
	Personnel requesting pure lithium targets should be aware of the following:		Personnel requesting pure lithium targets should be aware of the following:
	* Historically, these have only been manufactured on frames with a nominal 0.375" ( 10 mm ) aperture. Requests for larger apertures will require technique development and success is not assured.		* Historically, these have only been manufactured on frames with a nominal 0.375" ( 10 mm ) aperture. Requests for larger apertures will require technique development and success is not assured.
	* The chamber in which the experiment will be performed must be capable of accepting one of the two vacuum target barrels available, or a new barrel must be designed/manufactured. As of this writing (15 Sep ~~2022~~) the original Yale SPS Chamber, the TR1 Scattering Chamber, and the ~~CATRiNA chambers qualify. The~~ newly installed SPS "Wild CeBrAs" chamber ~~may also~~ qualify.		* The chamber in which the experiment will be performed must be capable of accepting one of the two vacuum target barrels available, or a new barrel must be designed/manufactured. As of this writing (15 Sep 2023) the original Yale SPS Chamber, the TR1 Scattering Chamber, the CATRiNA chamber and the newly installed SPS "Wild CeBrAs" chamber qualify.
	* It is not uncommon for the polyvinyl formal backings to break during evaporation. It is best to have multiple backings on the target ladder to increase the odds of getting a usable target.		* It is not uncommon for the polyvinyl formal backings to break during evaporation. It is best to have multiple backings on the target ladder to increase the odds of getting a usable target.
	* The polyvinyl formal backing can contribute carbon, hydrogen, and oxygen until it burns away.		* The polyvinyl formal backing can contribute carbon, hydrogen, and oxygen until it burns away.

Pbarber: /* Carbon */

2023-08-25T18:40:14Z

Carbon

← Older revision		Revision as of 14:40, 25 August 2023
Line 39:		Line 39:
	Carbon foils are made by carbon arc evaporation. Foils of 10, 20, 30, 50, 100, 150, 200, and 250 ug/cm2 are currently available on the small, "standard" FSU target frames. 50 and 100 ug/cm2 foils are available on slides and can be mounted on any frame upon request. If your experiment will tolerate it, these can be folded over the frame to produce double thickness, achieving 200 ug/cm2 as well. Other thickness will be made in future.		Carbon foils are made by carbon arc evaporation. Foils of 10, 20, 30, 50, 100, 150, 200, and 250 ug/cm2 are currently available on the small, "standard" FSU target frames. 50 and 100 ug/cm2 foils are available on slides and can be mounted on any frame upon request. If your experiment will tolerate it, these can be folded over the frame to produce double thickness, achieving 200 ug/cm2 as well. Other thickness will be made in future.

	Carbon stripper foils for the Tandem are also manufactured by carbon arc evaporation. These are foils of nominal 190 Angstroms thick and are coated with collodion to facilitate handling during installation. A carbon stripper foil frame has two apertures. The Tandem holds nominally 300 frames, thus providing 600 foil positions. Students are sometimes called upon to mount and/or install ~~stripper foils on~~ the frames.		Carbon stripper foils for the Tandem are also manufactured by carbon arc evaporation. These are foils of nominal 190 Angstroms thick and are coated with collodion to facilitate handling during installation. A carbon stripper foil frame has two apertures. The Tandem holds nominally 300 frames, thus providing 600 foil positions. Students are sometimes called upon to mount foils on the frames and/or install the frames in the Tandem.

	== Limited Low Melting Point Material Targets ==		== Limited Low Melting Point Material Targets ==

Pbarber: /* Target Frames */

2023-05-26T20:42:19Z

Target Frames

← Older revision		Revision as of 16:42, 26 May 2023
Line 6:		Line 6:

	== Target Frames ==		== Target Frames ==
	Standard target frames used here at FoxLab. CAD files for these frames are available. Use the contact link below to request them.		Standard target frames used here at FoxLab. CAD files for most of these frames are available. Use the contact link below to request them.
	<gallery>		<gallery>
	File:standard_fsu_tgt_frame.pdf\|Original "standard" FSU Target Frame		File:standard_fsu_tgt_frame.pdf\|Original "standard" FSU Target Frame

Pbarber: /* Target Frames */

2023-05-26T19:59:35Z

Target Frames

← Older revision		Revision as of 15:59, 26 May 2023
Line 13:		Line 13:
	File:Sps_fsu_tgt_frame_500.PDF\|SPS(old Yale) target frame w/ 0.500" aperture		File:Sps_fsu_tgt_frame_500.PDF\|SPS(old Yale) target frame w/ 0.500" aperture
	File:Sps_x_fsu_tgt_frame.pdf\|Adapter for mounting small FSU frame on SPS(old Yale) target ladder		File:Sps_x_fsu_tgt_frame.pdf\|Adapter for mounting small FSU frame on SPS(old Yale) target ladder
	File:Stripper_foil_frame.pdf\|Tandem Stripper Foil Frame		File:Stripper_foil_frame.pdf\|Tandem Terminal Stripper Foil Frame
	File:External_2nd_stripper_frame.pdf\|External 2nd Stripper Foil Frame		File:External_2nd_stripper_frame.pdf\|External 2nd Stripper Foil Frame
	File:Clarion_tgt_frame.pdf\|CLARION chamber target frame		File:Clarion_tgt_frame.pdf\|CLARION chamber target frame

Pbarber: /* Target Frames */

2023-05-26T19:58:55Z

Target Frames

← Older revision		Revision as of 15:58, 26 May 2023
Line 12:		Line 12:
	File:Sps_fsu_tgt_frame_375.pdf\|SPS(old Yale) target frame w/ 0.375" aperture		File:Sps_fsu_tgt_frame_375.pdf\|SPS(old Yale) target frame w/ 0.375" aperture
	File:Sps_fsu_tgt_frame_500.PDF\|SPS(old Yale) target frame w/ 0.500" aperture		File:Sps_fsu_tgt_frame_500.PDF\|SPS(old Yale) target frame w/ 0.500" aperture
			File:Sps_x_fsu_tgt_frame.pdf\|Adapter for mounting small FSU frame on SPS(old Yale) target ladder
	File:Stripper_foil_frame.pdf\|Tandem Stripper Foil Frame		File:Stripper_foil_frame.pdf\|Tandem Stripper Foil Frame
	File:External_2nd_stripper_frame.pdf\|External 2nd Stripper Foil Frame		File:External_2nd_stripper_frame.pdf\|External 2nd Stripper Foil Frame
			File:Clarion_tgt_frame.pdf\|CLARION chamber target frame
	</gallery>		</gallery>

← Older revision		Revision as of 10:55, 1 November 2023
Line 10:		Line 10:
	File:standard_fsu_tgt_frame.pdf\|Original "standard" FSU Target Frame		File:standard_fsu_tgt_frame.pdf\|Original "standard" FSU Target Frame
	File:Large fsu tgt frame.pdf\|Large FSU Target Frame		File:Large fsu tgt frame.pdf\|Large FSU Target Frame
	File:Sps_fsu_tgt_frame_375.pdf\|SPS(old Yale) target frame w/ 0.375" aperture		File:Sps_fsu_tgt_frame_375.pdf\|SPS (old Yale) target frame w/ 0.375" aperture
	File:Sps_fsu_tgt_frame_500.PDF\|SPS(old Yale) target frame w/ 0.500" aperture		File:Sps_fsu_tgt_frame_500.PDF\|SPS (old Yale) target frame w/ 0.500" aperture
	File:Sps_x_fsu_tgt_frame.pdf\|Adapter for mounting small FSU frame on SPS(old Yale) target ladder		File:Sps_x_fsu_tgt_frame.pdf\|Adapter for mounting small FSU frame on SPS(old Yale) target ladder
	File:Stripper_foil_frame.pdf\|Tandem Terminal Stripper Foil Frame		File:Stripper_foil_frame.pdf\|Tandem Terminal Stripper Foil Frame

← Older revision		Revision as of 15:59, 26 May 2023
Line 13:		Line 13:
	File:Sps_fsu_tgt_frame_500.PDF\|SPS(old Yale) target frame w/ 0.500" aperture		File:Sps_fsu_tgt_frame_500.PDF\|SPS(old Yale) target frame w/ 0.500" aperture
	File:Sps_x_fsu_tgt_frame.pdf\|Adapter for mounting small FSU frame on SPS(old Yale) target ladder		File:Sps_x_fsu_tgt_frame.pdf\|Adapter for mounting small FSU frame on SPS(old Yale) target ladder
	File:Stripper_foil_frame.pdf\|Tandem Stripper Foil Frame		File:Stripper_foil_frame.pdf\|Tandem Terminal Stripper Foil Frame
	File:External_2nd_stripper_frame.pdf\|External 2nd Stripper Foil Frame		File:External_2nd_stripper_frame.pdf\|External 2nd Stripper Foil Frame
	File:Clarion_tgt_frame.pdf\|CLARION chamber target frame		File:Clarion_tgt_frame.pdf\|CLARION chamber target frame

← Older revision		Revision as of 15:58, 26 May 2023
Line 12:		Line 12:
	File:Sps_fsu_tgt_frame_375.pdf\|SPS(old Yale) target frame w/ 0.375" aperture		File:Sps_fsu_tgt_frame_375.pdf\|SPS(old Yale) target frame w/ 0.375" aperture
	File:Sps_fsu_tgt_frame_500.PDF\|SPS(old Yale) target frame w/ 0.500" aperture		File:Sps_fsu_tgt_frame_500.PDF\|SPS(old Yale) target frame w/ 0.500" aperture
			File:Sps_x_fsu_tgt_frame.pdf\|Adapter for mounting small FSU frame on SPS(old Yale) target ladder
	File:Stripper_foil_frame.pdf\|Tandem Stripper Foil Frame		File:Stripper_foil_frame.pdf\|Tandem Stripper Foil Frame
	File:External_2nd_stripper_frame.pdf\|External 2nd Stripper Foil Frame		File:External_2nd_stripper_frame.pdf\|External 2nd Stripper Foil Frame
			File:Clarion_tgt_frame.pdf\|CLARION chamber target frame
	</gallery>		</gallery>