X-ray tracing using Geant4 ARTICLE IN PRESS Nuclear Instruments
... G4XrayRefractionIndex: This is an auxiliary class that manages the refraction index data for a particular material. G4XraySurface: As mentioned in the previous section, the details of the interaction of X-rays on a surface can be described by scattering models of various complexity, and are also dri ...
... G4XrayRefractionIndex: This is an auxiliary class that manages the refraction index data for a particular material. G4XraySurface: As mentioned in the previous section, the details of the interaction of X-rays on a surface can be described by scattering models of various complexity, and are also dri ...
1.3Mb pdf file - Subaru Telescope
... brightness of a single star with only J H K broad-band filters, which gives about 7000 ADU, is about 6 mag without AO, and about 8 mag with AO. The typical readout noise is 25 electrons (rms, DCS) and the dark level is less than 0.3 electrons s−1 . CIAO uses a DSP board computer for controlling the ...
... brightness of a single star with only J H K broad-band filters, which gives about 7000 ADU, is about 6 mag without AO, and about 8 mag with AO. The typical readout noise is 25 electrons (rms, DCS) and the dark level is less than 0.3 electrons s−1 . CIAO uses a DSP board computer for controlling the ...
GMT site, enclosure, and facilities design and development
... M3 Engineering & Technology Corp. 2051 W. Sunset Rd. Tucson, AZ 85704 USA b GMTO Corporation, 465 N. Halstead, Suite 250, Pasadena, CA 91107 USA ABSTRACT The Giant Magellan Telescope (GMT) will have a 25.4-meter diameter effective aperture, and is one the three currently planned next generation extr ...
... M3 Engineering & Technology Corp. 2051 W. Sunset Rd. Tucson, AZ 85704 USA b GMTO Corporation, 465 N. Halstead, Suite 250, Pasadena, CA 91107 USA ABSTRACT The Giant Magellan Telescope (GMT) will have a 25.4-meter diameter effective aperture, and is one the three currently planned next generation extr ...
On the telescopic disks of stars-a review and analysis of stellar
... The “spurious” telescopic disks of stars have been observed and measured since the very beginning of telescopic astronomy. And since that beginning a consistent theme has been present in the work of those astronomers who possessed both the observing skills and the quality instruments needed to see t ...
... The “spurious” telescopic disks of stars have been observed and measured since the very beginning of telescopic astronomy. And since that beginning a consistent theme has been present in the work of those astronomers who possessed both the observing skills and the quality instruments needed to see t ...
Absolute wave-number measurements in 130Te2: Reference lines
... atlas values for all of the transitions they measured were low by an average of 0.00204 cm−1. Their conclusion was that the atlas values do not provide suitable wave numbers for Doppler-free transitions even if a constant offset is added, owing to the blending of several molecular lines into one lin ...
... atlas values for all of the transitions they measured were low by an average of 0.00204 cm−1. Their conclusion was that the atlas values do not provide suitable wave numbers for Doppler-free transitions even if a constant offset is added, owing to the blending of several molecular lines into one lin ...
Spatial resolution and field of view, sensitivity
... • Fabrication errors are the differences between the design and the fabricated part. • These errors can be defined by their frequency across the part: – figure errors: low frequency undulations that can sometimes be corrected by focus compensation – mid-frequency errors: generally affect wavefront e ...
... • Fabrication errors are the differences between the design and the fabricated part. • These errors can be defined by their frequency across the part: – figure errors: low frequency undulations that can sometimes be corrected by focus compensation – mid-frequency errors: generally affect wavefront e ...
PowerPoint format
... QUIRC 1 – 2.5 m near-IR camera which is fed by Hokupa’a. 1024x1024 HgCdTe array; pixel size = 20 mas 20.2 arcsec FoV! Performance: near diffraction-limited (d-l) resolution in H & K; FWHM = 2x d-l in J. ...
... QUIRC 1 – 2.5 m near-IR camera which is fed by Hokupa’a. 1024x1024 HgCdTe array; pixel size = 20 mas 20.2 arcsec FoV! Performance: near diffraction-limited (d-l) resolution in H & K; FWHM = 2x d-l in J. ...
Project Overview
... Multiple baseline interferometers - today’s Radio Telescopes Measuring g sequentially at many baseline spacings Interferometric fringes are obtained simultaneously for baselines from every antenna to every other antenna They can be moved to create a new set of baselines The results can all be pu ...
... Multiple baseline interferometers - today’s Radio Telescopes Measuring g sequentially at many baseline spacings Interferometric fringes are obtained simultaneously for baselines from every antenna to every other antenna They can be moved to create a new set of baselines The results can all be pu ...
Sample Final
... Question 3: The following two triangles are similar. Find x and y. Hint: Draw the triangles separately. Your answers will be in ...
... Question 3: The following two triangles are similar. Find x and y. Hint: Draw the triangles separately. Your answers will be in ...
Middle Atmosphere Temperature Results from a New, High
... Center for Atmospheric and Space Sciences, USU; IISpace Dynamics Laboratory, USU ...
... Center for Atmospheric and Space Sciences, USU; IISpace Dynamics Laboratory, USU ...
Calibration of the SST
... The Poisson process of bombarding the photocathode with a sequence of photons holds whether you are using LEDs or starlight in the NSB as your source of photons. This means you can perform a similar photon statistics process by plotting the PMT currents versus the pedestal variations, something whic ...
... The Poisson process of bombarding the photocathode with a sequence of photons holds whether you are using LEDs or starlight in the NSB as your source of photons. This means you can perform a similar photon statistics process by plotting the PMT currents versus the pedestal variations, something whic ...
1920 - Lunar and Planetary Institute
... Ceres. All told, these factors make the 2—4-µm region a promising one for studying or constraining spectral variation on Ceres. With Ceres the focus of increasing interest due to the launch of the Dawn mission, we undertook such a study. Observations: We obtained spectra of Ceres using the NASA Infr ...
... Ceres. All told, these factors make the 2—4-µm region a promising one for studying or constraining spectral variation on Ceres. With Ceres the focus of increasing interest due to the launch of the Dawn mission, we undertook such a study. Observations: We obtained spectra of Ceres using the NASA Infr ...
Alignment Troubleshooting Alignment Procedure
... 1. Power on the NexStar by flipping the switch located at the base of the fork are to the on position. 2. Press ENTER to choose Sky Align. Pressing the ALIGN key will bypass the other alignment options and the scrolling text and automatically begins Sky Align. 3. The hand control display will then ...
... 1. Power on the NexStar by flipping the switch located at the base of the fork are to the on position. 2. Press ENTER to choose Sky Align. Pressing the ALIGN key will bypass the other alignment options and the scrolling text and automatically begins Sky Align. 3. The hand control display will then ...
Answer Choices
... Many of the objects in our universe are very far away from us. Special instruments are required to study them since traveling close enough would take a very long time. ...
... Many of the objects in our universe are very far away from us. Special instruments are required to study them since traveling close enough would take a very long time. ...
Optical Metrology Progress on Technology and Flight Hardware
... The MAM optics in the MAM vacuum chamber was reconfigured and the testbed called SCDU. But the thermal properties of the chamber were overall unchanged. (Shorter ~6hr allan variance data taken showed that the new setup is slightly better than before. The plot on prior page 2 over estimates the therm ...
... The MAM optics in the MAM vacuum chamber was reconfigured and the testbed called SCDU. But the thermal properties of the chamber were overall unchanged. (Shorter ~6hr allan variance data taken showed that the new setup is slightly better than before. The plot on prior page 2 over estimates the therm ...
ES_CH1_L3
... Tie the string around the outside edge of one eraser. Attach the paper clip to the string on one of the narrow edges of the eraser. Stack the remaining erasers on top of the first eraser. Hook the spring scale to the paper clip and slowly pull the stack of erasers across a table. Remove the top eras ...
... Tie the string around the outside edge of one eraser. Attach the paper clip to the string on one of the narrow edges of the eraser. Stack the remaining erasers on top of the first eraser. Hook the spring scale to the paper clip and slowly pull the stack of erasers across a table. Remove the top eras ...
Astronomical Instruments
... • Most important, reflecting telescopes do not suffer from chromatic aberration, because the light is reflected toward the focus before it can enter the glass. • For these reasons, every large astronomical telescope built since the beginning of the 20th century has been a reflecting telescope. ...
... • Most important, reflecting telescopes do not suffer from chromatic aberration, because the light is reflected toward the focus before it can enter the glass. • For these reasons, every large astronomical telescope built since the beginning of the 20th century has been a reflecting telescope. ...
Thompson
... 8 integrations to cover 1 sq. degree in all filters 223 integrations at each position in one year with 10% overhead ...
... 8 integrations to cover 1 sq. degree in all filters 223 integrations at each position in one year with 10% overhead ...
Turbulence Layers - Facultad de Ciencias
... wavelength, polarization state and arrival time for every incoming photon over the largest field of view. In fact using 3D spectroscopy, the wavelength and the incoming direction in a 2D field of view are recorded in a (x,y,λ) data cube, in contrast with standard techniques which either do imaging o ...
... wavelength, polarization state and arrival time for every incoming photon over the largest field of view. In fact using 3D spectroscopy, the wavelength and the incoming direction in a 2D field of view are recorded in a (x,y,λ) data cube, in contrast with standard techniques which either do imaging o ...
Sonic Microscope/Telescope Uses a MEMS Microphone
... headphone amp circuits. The CMoy amp will not work here. IC4 amplifies the difference between the two signal lines from IC3. The output stage employs an AD8397. This device can drive loads as low as 35Ω. I recommend that headphones of around 250Ω be used, e.g., Bose noise canceling headphones. Do no ...
... headphone amp circuits. The CMoy amp will not work here. IC4 amplifies the difference between the two signal lines from IC3. The output stage employs an AD8397. This device can drive loads as low as 35Ω. I recommend that headphones of around 250Ω be used, e.g., Bose noise canceling headphones. Do no ...
Celebrate a Celestial Light Show!
... appearing anywhere in the sky. The meteor shower activity will peak during the early morning hours of Thursday, Aug. 13. In the dark skies of outlying areas around Wichita or other Kansas cities, peak activity should reveal as many as 60 to 80 meteors/hour; in other words, an average of one meteor e ...
... appearing anywhere in the sky. The meteor shower activity will peak during the early morning hours of Thursday, Aug. 13. In the dark skies of outlying areas around Wichita or other Kansas cities, peak activity should reveal as many as 60 to 80 meteors/hour; in other words, an average of one meteor e ...
Lecture 5-Spatial resolution and field of view
... • Fabrication errors are the differences between the design and the fabricated part. • These errors can be defined by their frequency across the part: – figure errors: low frequency undulations that can sometimes be corrected by focus compensation – mid-frequency errors: generally affect wavefront e ...
... • Fabrication errors are the differences between the design and the fabricated part. • These errors can be defined by their frequency across the part: – figure errors: low frequency undulations that can sometimes be corrected by focus compensation – mid-frequency errors: generally affect wavefront e ...