;                    BPM calibration constants
;                    =========================
  guse_bpm     = 0   ; if 1 use bpm information for reconstruction
  gbpm_sample  = 500 ; number of events, which are used for average 
                     ; beam position ( <5000 ). Optimal value dep. on rate

; the names are based on Paul Gueye's 'Status of the actual Beam Position
;                   Monitors in the Hall C Beamline', December 1, 1995.
  gbpm_kappa    = 1.85      ; sensitivity in cm
  gbpm_alpha_ax = 1.8192    ; calibration gain: we may get them from the EPICS
  gbpm_alpha_ay = 1.0063    ;                   events
  gbpm_alpha_bx = 0.7330    ; right now that's according to Paul's note
  gbpm_alpha_by = 0.8935

; the following offsets get added to the calculated positions
  gbpm_ax_off = -0.011      ; in cm: survey according to Paul's note
  gbpm_ay_off = +0.052
  gbpm_bx_off = -0.004
  gbpm_by_off = +0.056

; average beam positions: only used if 'guse_bpm=0' 
  gbeam_xoff  = +0.18
  gbeam_xpoff = +0.00
  gbeam_yoff  = +0.00
  gbeam_ypoff = +0.00

; spectrometers would like to see this positions (from optics studies) 
; we treat SOS and HMS the same, however, we may change this if necessary
  gspec_xoff  = +0.18
  gspec_xpoff = +0.00
  gspec_yoff  = +0.00
  gspec_ypoff = +0.00

; Pedestals for BPM ADCs: from cosmic run #10933, 10/3/96, book XI-137
  gbpm_axp_ped = 431.9  ; these pedestals have to be determined
  gbpm_axm_ped = 514.7  ; from runs with no beam in the cavities,
  gbpm_ayp_ped = 406.9  ; e.g. cosmic runs.
  gbpm_aym_ped = 499.7  ;
  gbpm_bxp_ped = 331.0  ; 
  gbpm_bxm_ped = 350.6  ;
  gbpm_byp_ped = 358.8  ;
  gbpm_bym_ped = 292.7  ;

; positions of BPMs relative to target (from Paul's note)
  gbpm_a_dist  = 345.5   ; cm
  gbpm_b_dist  = 166.3   ; cm


;             Fast Raster calibration constants
;             =================================

; Various fast raster quantities: gUse* are flags

  gusefr               = 1  ; if 1 correct for FRY in reconstruction

  guse_frdefault       = 1  ; if 1 do no phase correction (default)
      gfr_cal_mom      = 3.245  ; = beam momnetum during calibration run 
      gfrx_adcpercm    = 11328. ; = FR channels per cm deflection on target
      gfry_adcpercm    = 10708. ; from run 9981, August 25, 1996, book X-22

                            ;if 0 apply phase correction 
      gfrx_dphase      = 0.0    ; phase shift (never measured for x so far) 
      gFrx_synccut     = 0.     ; should be zero if applied on centered distr.
      gfrx_adcmax      = 1000   ; ADC amplitude in channels.
      gfrx_maxsize     = 0.1    ; fast raster amplitude in centimeter.

      gfry_dphase      = 5.8    ; phase shift 
      gFry_synccut     = 0.     ; should be zero if applied on centered distr.
      gfry_adcmax      = 1000   ; ADC amplitude in channels.
      gfry_maxsize     = 0.1    ; fast raster amplitude in centimeter.

; The latest FR phase analysis from spring '96 showed, that there is no
; measurable phase shift. During early running (E91-13, E89-12) the FRY-phase
; was determined to be 5.8 degree.

; positions of FR magnets relative to target
  gfrx_dist  = 2111   ; cm
  gfry_dist  = 2071   ; cm