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(1 - 7 of 7)
- Title
- Fabrication and Characterization of High Aspect Ratio Hard X-ray Zone Plates with Ultrananocrystalline Diamond Molds
- Creator
- Wojcik, Michael J.
- Date
- 2013, 2013-05
- Description
-
Hard x-ray zone plate development has played an important role in improving x-ray microscopy through ner resolution and greater functional X...
Show moreHard x-ray zone plate development has played an important role in improving x-ray microscopy through ner resolution and greater functional X-ray energy. Similar to circular di raction gratings except with changing period as a function of radius, zone plates are di ractive focusing optics with resolution determined by the outer most zone width (OZW). Hard X-ray zone plates are mostly phase zone plates with a limited e ciency that peaks when the zone material causes a -phase shift on the x-ray, and the zone thickness required can be multiple microns dependent on x-ray energy. The combination of sub-100-nm resolution and peak e ciency for hard xrays requires very high aspect ratio zones. In this dissertation, two materials were used to fabricate high aspect ratio zone plates in a single layer mold and a two layer mold process. Ultrananocrystalline diamond (UNCD) is composed of 2-5 nm diamond grains bounded together with graphitic bonds. This form of diamond can be deposited onto substrates with thickness greater than a micron and with physical properties similar to bulk diamond. Hydrogen silsesquioxane (HSQ) is a spin on glass that is also a high contrast electron beam lithography resist. A thick layer of HSQ can be patterned into high aspect ratio structures and could be used as a pattern transfer mask for several etch recipes. Both of these materials were used to fabricate up to 25 aspect ratio zone plates and with OZW of 60 and 80 nm. Zone plates fabricated with UNCD were the rst high aspect ratio zone plates using a diamond like material and this technique was leveraged into a new fabrication method using two layers as an electroplating mold. Fabricated zone plates were characterized to measure the optical properties to compare with the fabrication properties. After characterization, several zone plate models based on fabricated zone plates were developed and simulated using a wave propagation technique to compare with the characterization data. The results xiii from fabrication, characterization, and simulation of zone plates with 25 aspect ratio will be presented as well as future possibilities for the techniques used.
PH.D in Physics, May 2013
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- Title
- Inflatable Greenhouse (semester?), IPRO 344: Infaltable Greenhouse IPRO 334 Abstract Sp06
- Creator
- Cervantes, Heidi, Ferraro, Christie, Lucid, Shannon, Teefey, Aaron, Woods, Nathaniel, Bains, Jasmeet, Ching, Neal, Langman, Michael, Mccrory, Reuben, Valdez, Oscar, Wright Iii, James, Bilderback, Matthew, Choi, David, Larson, Jeffrey, Meyer, Chad, Wang, Xiang, Carroll, Daniel, Crandell, Daniel, Lim, Eungjum, Nedrud, Joshua, Wojcik, Michael
- Date
- 2006-05, 2006-05
- Description
-
The purpose of the Inflatable Greenhouse IPRO was to design an air supported structure that was cheaper than the current greenhouse solution....
Show moreThe purpose of the Inflatable Greenhouse IPRO was to design an air supported structure that was cheaper than the current greenhouse solution. The structural support of current greenhouses creates shadows that prevent an even sunlight exposure for the plants. The other issues we investigated were the cost, size, thermal control, and pest control of current greenhouse designs. The majority of the cost for a traditional greenhouse goes towards the structural support therefore an air supported structure should be significantly cheaper. The basic greenhouse design is oriented towards human occupants and is subsequently quite large. If the greenhouse was instead designed to house the plants already in the ground, just for the months that they needed shelter to grow, the cut back in size would also greatly affect the cost. We also looked into the thermal qualities of greenhouses. The very nature of a greenhouse absorbs and traps the light and heat of the sun. Without a cooling system a greenhouse can overheat and harm the plants within it. The other problem we found with current greenhouses was the pest control solution. Most greenhouses use strong chemicals that require special training for use and safety. Even the “organic” solutions use natural chemicals in concentrations considered toxic. Our goal was to design a greenhouse that would address each of these issues with a cheap and practical solution.
Deliverables for IPRO 334: Inflatable Greenhouse for the Spring 2006 semester
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- Title
- Inflatable Greenhouse (semester?), IPRO 344: Infaltable Greenhouse IPRO 334 Project Plan Sp06
- Creator
- Cervantes, Heidi, Ferraro, Christie, Lucid, Shannon, Teefey, Aaron, Woods, Nathaniel, Bains, Jasmeet, Ching, Neal, Langman, Michael, Mccrory, Reuben, Valdez, Oscar, Wright Iii, James, Bilderback, Matthew, Choi, David, Larson, Jeffrey, Meyer, Chad, Wang, Xiang, Carroll, Daniel, Crandell, Daniel, Lim, Eungjum, Nedrud, Joshua, Wojcik, Michael
- Date
- 2006-05, 2006-05
- Description
-
The purpose of the Inflatable Greenhouse IPRO was to design an air supported structure that was cheaper than the current greenhouse solution....
Show moreThe purpose of the Inflatable Greenhouse IPRO was to design an air supported structure that was cheaper than the current greenhouse solution. The structural support of current greenhouses creates shadows that prevent an even sunlight exposure for the plants. The other issues we investigated were the cost, size, thermal control, and pest control of current greenhouse designs. The majority of the cost for a traditional greenhouse goes towards the structural support therefore an air supported structure should be significantly cheaper. The basic greenhouse design is oriented towards human occupants and is subsequently quite large. If the greenhouse was instead designed to house the plants already in the ground, just for the months that they needed shelter to grow, the cut back in size would also greatly affect the cost. We also looked into the thermal qualities of greenhouses. The very nature of a greenhouse absorbs and traps the light and heat of the sun. Without a cooling system a greenhouse can overheat and harm the plants within it. The other problem we found with current greenhouses was the pest control solution. Most greenhouses use strong chemicals that require special training for use and safety. Even the “organic” solutions use natural chemicals in concentrations considered toxic. Our goal was to design a greenhouse that would address each of these issues with a cheap and practical solution.
Deliverables for IPRO 334: Inflatable Greenhouse for the Spring 2006 semester
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- Title
- Inflatable Greenhouse (semester?), IPRO 344: Infaltable Greenhouse IPRO 334 Final Report Sp06
- Creator
- Cervantes, Heidi, Ferraro, Christie, Lucid, Shannon, Teefey, Aaron, Woods, Nathaniel, Bains, Jasmeet, Ching, Neal, Langman, Michael, Mccrory, Reuben, Valdez, Oscar, Wright Iii, James, Bilderback, Matthew, Choi, David, Larson, Jeffrey, Meyer, Chad, Wang, Xiang, Carroll, Daniel, Crandell, Daniel, Lim, Eungjum, Nedrud, Joshua, Wojcik, Michael
- Date
- 2006-05, 2006-05
- Description
-
The purpose of the Inflatable Greenhouse IPRO was to design an air supported structure that was cheaper than the current greenhouse solution....
Show moreThe purpose of the Inflatable Greenhouse IPRO was to design an air supported structure that was cheaper than the current greenhouse solution. The structural support of current greenhouses creates shadows that prevent an even sunlight exposure for the plants. The other issues we investigated were the cost, size, thermal control, and pest control of current greenhouse designs. The majority of the cost for a traditional greenhouse goes towards the structural support therefore an air supported structure should be significantly cheaper. The basic greenhouse design is oriented towards human occupants and is subsequently quite large. If the greenhouse was instead designed to house the plants already in the ground, just for the months that they needed shelter to grow, the cut back in size would also greatly affect the cost. We also looked into the thermal qualities of greenhouses. The very nature of a greenhouse absorbs and traps the light and heat of the sun. Without a cooling system a greenhouse can overheat and harm the plants within it. The other problem we found with current greenhouses was the pest control solution. Most greenhouses use strong chemicals that require special training for use and safety. Even the “organic” solutions use natural chemicals in concentrations considered toxic. Our goal was to design a greenhouse that would address each of these issues with a cheap and practical solution.
Deliverables for IPRO 334: Inflatable Greenhouse for the Spring 2006 semester
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- Title
- Inflatable Greenhouse (semester?), IPRO 344: Infaltable Greenhouse IPRO 334 Poster Sp06
- Creator
- Cervantes, Heidi, Ferraro, Christie, Lucid, Shannon, Teefey, Aaron, Woods, Nathaniel, Bains, Jasmeet, Ching, Neal, Langman, Michael, Mccrory, Reuben, Valdez, Oscar, Wright Iii, James, Bilderback, Matthew, Choi, David, Larson, Jeffrey, Meyer, Chad, Wang, Xiang, Carroll, Daniel, Crandell, Daniel, Lim, Eungjum, Nedrud, Joshua, Wojcik, Michael
- Date
- 2006-05, 2006-05
- Description
-
The purpose of the Inflatable Greenhouse IPRO was to design an air supported structure that was cheaper than the current greenhouse solution....
Show moreThe purpose of the Inflatable Greenhouse IPRO was to design an air supported structure that was cheaper than the current greenhouse solution. The structural support of current greenhouses creates shadows that prevent an even sunlight exposure for the plants. The other issues we investigated were the cost, size, thermal control, and pest control of current greenhouse designs. The majority of the cost for a traditional greenhouse goes towards the structural support therefore an air supported structure should be significantly cheaper. The basic greenhouse design is oriented towards human occupants and is subsequently quite large. If the greenhouse was instead designed to house the plants already in the ground, just for the months that they needed shelter to grow, the cut back in size would also greatly affect the cost. We also looked into the thermal qualities of greenhouses. The very nature of a greenhouse absorbs and traps the light and heat of the sun. Without a cooling system a greenhouse can overheat and harm the plants within it. The other problem we found with current greenhouses was the pest control solution. Most greenhouses use strong chemicals that require special training for use and safety. Even the “organic” solutions use natural chemicals in concentrations considered toxic. Our goal was to design a greenhouse that would address each of these issues with a cheap and practical solution.
Deliverables for IPRO 334: Inflatable Greenhouse for the Spring 2006 semester
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- Title
- Inflatable Greenhouse (semester?), IPRO 344
- Creator
- Cervantes, Heidi, Ferraro, Christie, Lucid, Shannon, Teefey, Aaron, Woods, Nathaniel, Bains, Jasmeet, Ching, Neal, Langman, Michael, Mccrory, Reuben, Valdez, Oscar, Wright Iii, James, Bilderback, Matthew, Choi, David, Larson, Jeffrey, Meyer, Chad, Wang, Xiang, Carroll, Daniel, Crandell, Daniel, Lim, Eungjum, Nedrud, Joshua, Wojcik, Michael
- Date
- 2006-05, 2006-05
- Description
-
The purpose of the Inflatable Greenhouse IPRO was to design an air supported structure that was cheaper than the current greenhouse solution....
Show moreThe purpose of the Inflatable Greenhouse IPRO was to design an air supported structure that was cheaper than the current greenhouse solution. The structural support of current greenhouses creates shadows that prevent an even sunlight exposure for the plants. The other issues we investigated were the cost, size, thermal control, and pest control of current greenhouse designs. The majority of the cost for a traditional greenhouse goes towards the structural support therefore an air supported structure should be significantly cheaper. The basic greenhouse design is oriented towards human occupants and is subsequently quite large. If the greenhouse was instead designed to house the plants already in the ground, just for the months that they needed shelter to grow, the cut back in size would also greatly affect the cost. We also looked into the thermal qualities of greenhouses. The very nature of a greenhouse absorbs and traps the light and heat of the sun. Without a cooling system a greenhouse can overheat and harm the plants within it. The other problem we found with current greenhouses was the pest control solution. Most greenhouses use strong chemicals that require special training for use and safety. Even the “organic” solutions use natural chemicals in concentrations considered toxic. Our goal was to design a greenhouse that would address each of these issues with a cheap and practical solution.
Deliverables for IPRO 334: Inflatable Greenhouse for the Spring 2006 semester
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- Title
- Inflatable Greenhouse (semester?), IPRO 344: Infaltable Greenhouse IPRO 334 IPRO Day Presentation Sp06
- Creator
- Cervantes, Heidi, Ferraro, Christie, Lucid, Shannon, Teefey, Aaron, Woods, Nathaniel, Bains, Jasmeet, Ching, Neal, Langman, Michael, Mccrory, Reuben, Valdez, Oscar, Wright Iii, James, Bilderback, Matthew, Choi, David, Larson, Jeffrey, Meyer, Chad, Wang, Xiang, Carroll, Daniel, Crandell, Daniel, Lim, Eungjum, Nedrud, Joshua, Wojcik, Michael
- Date
- 2006-05, 2006-05
- Description
-
The purpose of the Inflatable Greenhouse IPRO was to design an air supported structure that was cheaper than the current greenhouse solution....
Show moreThe purpose of the Inflatable Greenhouse IPRO was to design an air supported structure that was cheaper than the current greenhouse solution. The structural support of current greenhouses creates shadows that prevent an even sunlight exposure for the plants. The other issues we investigated were the cost, size, thermal control, and pest control of current greenhouse designs. The majority of the cost for a traditional greenhouse goes towards the structural support therefore an air supported structure should be significantly cheaper. The basic greenhouse design is oriented towards human occupants and is subsequently quite large. If the greenhouse was instead designed to house the plants already in the ground, just for the months that they needed shelter to grow, the cut back in size would also greatly affect the cost. We also looked into the thermal qualities of greenhouses. The very nature of a greenhouse absorbs and traps the light and heat of the sun. Without a cooling system a greenhouse can overheat and harm the plants within it. The other problem we found with current greenhouses was the pest control solution. Most greenhouses use strong chemicals that require special training for use and safety. Even the “organic” solutions use natural chemicals in concentrations considered toxic. Our goal was to design a greenhouse that would address each of these issues with a cheap and practical solution.
Deliverables for IPRO 334: Inflatable Greenhouse for the Spring 2006 semester
Show less