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What is the correspondence between the PROS 34-channel spectra and the PI bins?

(2/16/94)


The correspondence between the PROS 34-channel spectra and PI bins is listed below. The PI bins, 256 channels, are ~10 eV wide, with the low energy given by E_low = N_chan * 10.0 eV. The lower level discriminator is set in ADC channel 7, hence the warning.

                      Energy           PI bins
         channel    Low    High   (ADC channels present)
            1      0.07    0.09         7+ 8   <------ NOT TO BE USED
            2      0.09    0.11         9+10              IN ANY FIT
            3      0.11    0.14        11-->13 <------ start here after
            4      0.14    0.17        14-->16         11 October 1991
            5      0.17    0.20        17-->19 
            6      0.20    0.24        20-->23
            7      0.24    0.28        24-->27
            8      0.28    0.32        28-->31
            9      0.32    0.37        32-->36
           10      0.37    0.42        37-->41
           11      0.42    0.47        42-->46
           12      0.47    0.52        47-->51
           13      0.52    0.58        52-->57
           14      0.58    0.64        58-->63
           15      0.64    0.70        64-->69
           16      0.70    0.77        70-->76
           17      0.77    0.84        77-->83
           18      0.84    0.91        84-->90
           19      0.91    0.99        91-->98
           20      0.99    1.07        99-->106
           21      1.07    1.15       107-->114
           22      1.15    1.23       115-->122
           23      1.23    1.32       123-->131
           24      1.32    1.41       132-->140
           25      1.41    1.50       141-->149
           26      1.50    1.60       150-->159
           27      1.60    1.70       160-->169
           28      1.70    1.80       170-->179
           29      1.80    1.91       180-->190
           30      1.91    2.02       191-->201
           31      2.02    2.13       202-->212	<---Poorly calibrated
           32      2.13    2.24       213-->223     eff. area and energy
           33      2.24    2.36       224-->235	    response at energies 
           34      2.36    2.48       236-->247     above 2 keV.


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This file was last modified on Friday, 27-Jul-2001 14:59:29 EDT

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