Static Fourier spectrometers are often used for spectral measurements of the ionosphere emissions. There are two main advantages of Fourier spectrometers (FS) - large geometric factor and high spectral resolution; these parameters are two orders better than for grating spectral instruments. ... In scanning Fourier spectrometer optical and electric modulation of signal is used to avoid this problem, for static Fourier spectrometer there are no such ways. ...

Silicon/Tungsten ECal for SiD ­ Status and Progress Ray Frey University of Oregon ICLC Paris , April 22, 2004 · Overview (brief) · Current R D detectors electronics timing · Hybrid Status from K.U. · Summary ICLC Paris R. Frey 1 SD Si/W M. Breidenbach, D. Freytag, N. Graf, G. Haller, O. Milgrome Stanford Linear Accelerator Center R. Frey , D. Strom U. Oregon V. Radeka Brookhaven National Lab ICLC Paris R. Frey 2 Concept ...

Next: Detection Efficiency Up: CCD Scientific Performance Previous: CCD Scientific Performance . The X-ray energy required to liberate a charge pair in a semiconductor is approximately an order of magnitude lower than in gas detectors, hence the potential spectroscopic advantage of CCD detectors. ... For a number of years, good scientific CCDs attained noise performance of electrons rms, but this limited the energy resolution for X-ray energies 3keV. ...

... Judged by their instrumental profiles, spectrometers fall into two basic classes---Lorentzian and Gaussian---with many other line profile functions (sinc functions, Voigt functions, Airy functions, etc.) falling into one of these two categories in some limit. We demonstrate that the Rayleigh, Sparrow, and Houston resolution criteria are of limited use compared to the ``equivalent width'' of the line profile. ... Rayleigh criterion. ... All of these functions have continuous higher derivatives. ...

Electron-Bombarded, Back-Illuminated CCD Sensors . ... EBCCD PERFORMANCE: Resolution and CTF . ... Measured CTF for an SI502AB back-illuminated CCD, a GaAs SI502AB EBCCD, . ... Figure 8 depicts each sensor's measured CTF. ... The EBCCD's CTF is only slightly lower in contrast than the back-illuminated CCD's CTF and, depending upon the spatial frequency of interest, is 20% to 100% higher in contrast than the ICCD's CTF. ... Measured CTF for GaAs SI502AB EBCCD #A (1.8 keV) and SI502AB ICCD using a . ...

... Дни открытых дверей к юбилею САО РАН (12-14 апреля 2016 г.) . Международная конференция "Dark Ages and White Nights (Spectroscopy of the CMB)" (20-24 июня 2016 г.) . ... Международная конференция MULTI-SPIN GALAXIES - 2016 (26-30 сентября 2016 г.) . Международная астрономическая конференция "Физика звезд: от коллапса до коллапса" (3-7 октября 2016 г.) Архив . ... Подробнее.. ... 10.02.16 . ... БТА в реальном времени . ... Цейсс-1000 в реальном времени . ... Последнее обновление: 22/03/2016 ...

New Results for the CZT Drift-Strip Detector . ... The drift strip method for improving the energy response of a CdZnTe (CZT) detector to hard X and gamma rays is discussed. ... In 1997 the CZT detector research at DSRI resulted in the novel technique of Pamelen and Budtz-JЬrgensen (1998), the drift-strip method, which to a large extent circumvents the problem of hole trapping. ... The drift-stripmethod . ... Each drift detector consists of 8 drift-strip electrodes and one anode readout strip. ...

... Science . ... Science Users Information > Science Publications > Science Announcements > New GIRAFFE Spectral Resolutions Characterised For All Settings . ... ESO Data . ... The spectral resolution characterisation has been completed for all grating settings and the new resolving powers are listed under the FLAMES News . ... In some settings the spectral resolution is much higher, and in almost all HR settings there is an increase of 20-30% with respect to the values before the February intervention...

... December 21, 1997 . ... Advantages are briefly discussed of gaining in spectral resolution, which is accompanied by losses in signal level, as compared with the attempts to improve the accuracy of measurement of line parameters by means of rising the S/N ratio alone with increasing the exposure time. To partially solve the problem of observations of faint objects at the BTA a new design echelle spectrometer is proposed. high resolution spectroscopy . ...

The HTSC group has an access to a set of technological equipment for thin film preparation and laboratory measurement system for low temperature electrical measurements. The technological complex of the " Thin Film Oxide Electronics " Laboratory includes two clean rooms of the "1000" class, with a complete set of equipment for photolithography (spinner, oven, hot plate, mask aligner, chemical bench, de-ionized water source) in each clean room. ...

... They normally have 1 hz resolution. hp1: this is the LO for the rf to if1 mixing (1st lo) . hp2: this is used to generate the 2130 Mhz signal for the sband. 250 Mhz from downstairs gets added to this to generate 2380 Mhz which then drives the sband exciter. We own 3 of the hp32712 synths . ... To check our setup, we generated a birdie at 8446.231359 Mhz (with the hp83712 synth downstairs). ... hp83712 hp2 as sband synth . ... hp83712: downstairs, agc works, but only has KHz resolution . ...

The electronics of LonGSp is composed of two main parts: "upper" electronics, that is situated near the instrument, and the "lower" electronics, put in the control room. ... There is also the main electronics box that contains the amplifiers and the A/D converters for the four output signals from the detector, the sequence memory which generates the proper timing clocks, and a logic for converting the 16-bit parallel data from the array to a serial format. ...

... We compare ray-traces of the HRMA response to "on-axis" observations of AR Lac and Capella as they move through their dither patterns to images produced from filtered event lists to characterize the effective intrinsic PSF of the HRC-I. A two-dimensional Gaussian, which is often used to represent the detector response, is NOT a good representation of the intrinsic PSF of the HRC-I; the actual PSF has a sharper peak and additional structure. ... Last modified: Tue May 18 14:35:55 EDT 2010 . ...

Next: The Transmission Gratings Up: The Instruments Previous: The Instruments . ... A conventional cross-grid charge detector reads out the photo-induced charge cloud and the electronics determine an arrival time to 16s, and the position with a resolution of about 18 m or 0.37 arcsec. ... The Massachusetts Institute of Technology's Center for Space Research, in collaboration with Lincoln Laboratories, developed the detector system and manufactured the CCDs; Lockheed-Martin integrated the instrument. ...

... public class TiffDecoder . ... static int . ... Field Detail public static final int NEW_SUBFILE_TYPE . ... public static final int IMAGE_WIDTH . ... public static final int IMAGE_LENGTH . ... public static final int BITS_PER_SAMPLE . ... public static final int COMPRESSION . ... public static final int PHOTO_INTERP . ... public static final int IMAGE_DESCRIPTION . ... public static final int STRIP_OFFSETS . ... public static final int ORIENTATION . ... public static final int SAMPLES_PER_PIXEL . ...

... SIXA FM ACCEPTANCE TESTS . ... In accordance to plan of the Acceptance Tests for Flight Models which was agreed in March 2000 in Moscow, the Acceptance Test of SIXA FM was carried out between 28 August and 2 September at VTT Automation, Finland. ... GOUCH for electronics box of SIXA-FM, Remark: not updated after changes made in 1994. ... Ground Test Program of SIXA-FM. ... Integration Test of SIXA FM, BIUS, ISS, DSS, and MPMI . ... Test data were written to MPMI, DSS-F, DSS-S and GSE SIXA-FM, . ...

Subatomic resolution on Cu(014)-O . 3nm x 3nm STM image of the Cu(014)-O 0.5ML surface measured with MnNi tip. ... This result has been discussed in Phys. Rev. Letters, 98, 206101 (2007) (A.N.Chaika, V.N.Semenov, S.S.Nazin, S.I.Bozhko, S. Murphy, K. Radican, I.V.Shvets, "Atomic Row Doubling in the STM Images of Cu(014)-O Obtained with MnNi Tips"). Image courtesy of A.Chaika. The image was measured in constant current mode using RT STM GPI-300. Copyright ИФТТ РАН, ЛСПП, 2006-2007 . ...

... Navigation in the near planetary space, Mars and Phobos observations. ... navigation in the near-planetary space based on images of Mars, Phobos and the starry sky; . Phobos high resolution imaging; . ... angle               angle . ... Number of TV-cameras                     2                       2 KNM — Mars Observation Camera — is being designed as the scientific instrument of the Phobos-Grunt mission. ... Both instruments are developed for Russian Phobos-Grunt project. ...

... You are here: start €Ё difx €Ё ivs2016extras . Trace: тАв ivs2016extras . difx:ivs2016extras . ... Make high resolution spectra of baseband channels . Inspect VDIF data headers . ... The program and output text file containing the spectrum is documented in Reference Manual sections 5.50. This program works on many varieties of VLBA baseband data (including the Mark5B data in the first dataset), but does not work on VDIF data with multiple threads (e.g., from the second dataset). ...

... Status of the ELECTRON experiment . ... The objective of the ELECTRON experiment is to perform 3-D measurements of the plasma electrons in the energy range from 10 eV to 26000 eV, with good angular resolution, sensitivity and large dynamical range. ... Figure 1 presents the ELECTRON sensor. ... Click on the picture to view large one) . ... Figure 3 shows dynamical spectra with counting rate measurements performed by ELECTRON experiment during very multiple magnetopause crossings on February, 4, 1996...