PDS_VERSION_ID = PDS3
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PUBLICATION_DATE = 2001-09-01
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END
1. Introduction:
The CALIB directory contains a set of files that were derived
from the NEAR GRS Calibration Documentation. The tables
provided are summary information from the figures extracted
from that documentation.
For full description of the NEAR GRS ground calibration
process and the full set of tables listed below:
please consult:
EVANS ET AL. ICARUS VOL. 147, 498-519 (2000)
2. Directory Contents:
CALINFO.TXT This file
GCALOVER.TXT Summary of Calibration Process and use
of DATA.
GRSFIG05A.TAB
SPECTRA (NAI AND ANTI_COINCIDENCE) TAKEN WITH A CR51 SOURCE
GRSFIG05B.TAB
SPECTRA (NAI AND ANTI_COINCIDENCE) TAKEN WITH A CS137 SOURCE
GRSFIG05C.TAB
SPECTRA (NAI, ANTI, BOTH ESCAPE) TAKEN WITH A CS137 SOURCE
GRSFIG05D.TAB
SPECTRA (NAI,ANTI,BOTH ESCAPE)TAKEN WITH A PUC 6.13 MEV SOURCE
GRSFIG06.TAB
MEASURED INTRINSIC PEAK EFFICIENCY OF CENTRAL DETECTOR
GRSFIG07.TAB
MEASURED INTEGRAL LINEARITY WITH A LINEAR FIT
TO THE DATA.
GRSFIG08.TAB
MEASURED INTEGRAL LINEARITY WITH A SECOND
ORDER POLYNOMIAL FIT TO THE DATA.
GRSFIG09.TAB
ENERGY RESOLUTION AS A FUNCTION OF ENERGY
MEASURED WITH THE GROUND SUPPORT EQUIPMENT
GRSFIG10.TAB
INTRINSIC FULL ENEGY PEAK EFFICIENCY FOR
CENTRAL DETECTOR (WITHOUT PMT) - ORBITAL MEASUREMENTS
GRSFIG11.TAB
RATIO OF ESCAPE PEAK EFFICIENCY TO FULL
ENERGY PEAK EFFICIENCY.
GRSFIG12.TAB
ESCAPE PEAK EFFICIENCY FOR ORBITAL
MEASUREMENTS (FIRST AND SECOND ESCAPE INCLUDED).
GRSFIG13A.TAB
GAMMA RAY SPECTROMETER ANGULAR RESPONSE AT
320 KEV.
GRSFIG13B.TAB
GAMMA RAY SPECTROMETER ANGULAR RESPONSE AT
1115 KEV.
GRSFIG14.TAB
SPECTRUM TAKEN WITH A LARGE SOIL SAMPLE AND
A 14 MEV NEUTRON SOURCE (NAI ANTI_COINCIDENCE)
GRSFIG15A.TAB
NAI LOW LEVEL DISCRIMINATOR CALIBRATION
GRSFIG15B.TAB
BGO LOW LEVEL DISCRIMINATOR CALIBRATION
GRSFIG16.TAB
HIGH VOLTAGE SETTINGS VS GAIN (DURING CRUISE)
3. Cognizant Persons
NEAR/XGRS data were provided by Jacob Trombka, NEAR XGRS Team Leader:
Jacob Trombka
Building 2, Rm# 165
Code 691, Astrochemistry Branch
NASA/Goddard Space Flight Center
Greenbelt, MD 20771.
jack.trombka@gsfc.nasa.gov
301-286-5941
This volume was designed and produced by:
Tim McClanahan
Building 2, # 166
Code 691, Astrochemistry Branch
NASA/ Goddard Space Flight Center
Greenbelt, MD 20771
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calinfo.txt 21-Jun-2002 12:05 8.7K
gcalover.txt 21-Jun-2002 12:05 9.1K
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grsfig11.lbl 21-Jun-2002 12:05 9.5K [PDS label]
grsfig11.tab 21-Jun-2002 12:05 287 [Table file]
grsfig12.lbl 21-Jun-2002 12:05 5.5K [PDS label]
grsfig12.tab 21-Jun-2002 12:05 133 [Table file]
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grsfig16.lbl 21-Jun-2002 12:05 6.5K [PDS label]
grsfig16.tab 21-Jun-2002 12:05 88 [Table file]
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