bms97#h_be4.dat

BMS: Effective Beam Stopping Coefficients

Ion
Be4+
Temperature Range
100 eV → 5.000 x 104 eV
Density Range
1.000 x 1012 cm-3 → 1.000 x 1015 cm-3
Energy Range
5000 eV/amu → 1.250 x 105 eV/amu

ADF21

Filename
bms97#h_be4.dat
Full Path
adf21/bms97#h/bms97#h_be4.dat
Download data

Reference Parameters

Reference Temperature: 2000 eV
Reference Density: 6.000 x 1013 cm-3
Reference Energy: 6.500 x 104 eV

(Data are provided as scans from the above reference values.)

Processes

  • Be4+ + H0 → Be4+ + H+ + e
  • Be4+ + H0 → Be3+ + H+

(Note that included processes are more complex in that full density dependent GCR calculations are used, the above processes are simply an indication of the effective data the ADF21 file provides.)


              WORKING ACCURACY OF THE EFFECTIVE BEAM 
              STOPPING COEFFICIENT AT THE REFERENCE       REFERENCE         REFERENCE       REFERENCE
              ENERGY, DENSITY AND TEMPERATURE             ENERGY            DENSITY         TEMPERATURE
              ---------------------------------------    ---------          ---------       -----------

                         +/-16.81%                        6.50D+04 keV/amu  6.00D+13 cm-3   2.00D+03 eV

              WORKING ACCURACY OF THE EFFECTIVE BEAM STOPPING               ELECTRON        REFERENCE
              COEFFICIENT AT THE REFERENCE TEMPERATURE                      DENSITY         TEMPERATURE
             ------------------------------------------------               ------------    -----------

   +/- 5.99% @ 15 keV/amu +/- 3.98% @ 35 keV/amu +/-18.38% @ 70 keV/amu     1.00D+12 cm-3   2.00D+03 eV
   +/- 6.03% @ 15 keV/amu +/- 4.36% @ 35 keV/amu +/-19.39% @ 70 keV/amu     2.00D+12 cm-3   2.00D+03 eV
   +/- 6.01% @ 15 keV/amu +/- 4.48% @ 35 keV/amu +/-19.89% @ 70 keV/amu     3.00D+12 cm-3   2.00D+03 eV
   +/- 6.05% @ 15 keV/amu +/- 4.65% @ 35 keV/amu +/-20.38% @ 70 keV/amu     5.00D+12 cm-3   2.00D+03 eV
   +/- 6.03% @ 15 keV/amu +/- 4.70% @ 35 keV/amu +/-20.47% @ 70 keV/amu     6.00D+12 cm-3   2.00D+03 eV
   +/- 6.02% @ 15 keV/amu +/- 4.76% @ 35 keV/amu +/-20.51% @ 70 keV/amu     7.00D+12 cm-3   2.00D+03 eV
   +/- 6.01% @ 15 keV/amu +/- 4.82% @ 35 keV/amu +/-20.56% @ 70 keV/amu     8.00D+12 cm-3   2.00D+03 eV
   +/- 6.00% @ 15 keV/amu +/- 4.74% @ 35 keV/amu +/-20.54% @ 70 keV/amu     9.00D+12 cm-3   2.00D+03 eV
   +/- 6.06% @ 15 keV/amu +/- 4.73% @ 35 keV/amu +/-20.53% @ 70 keV/amu     1.00D+13 cm-3   2.00D+03 eV
   +/- 5.98% @ 15 keV/amu +/- 4.72% @ 35 keV/amu +/-20.30% @ 70 keV/amu     2.00D+13 cm-3   2.00D+03 eV
   +/- 5.93% @ 15 keV/amu +/- 4.74% @ 35 keV/amu +/-20.06% @ 70 keV/amu     3.00D+13 cm-3   2.00D+03 eV
   +/- 5.85% @ 15 keV/amu +/- 4.53% @ 35 keV/amu +/-19.52% @ 70 keV/amu     5.00D+13 cm-3   2.00D+03 eV
   +/- 5.81% @ 15 keV/amu +/- 4.50% @ 35 keV/amu +/-19.31% @ 70 keV/amu     6.00D+13 cm-3   2.00D+03 eV
   +/- 5.78% @ 15 keV/amu +/- 4.48% @ 35 keV/amu +/-19.13% @ 70 keV/amu     7.00D+13 cm-3   2.00D+03 eV
   +/- 5.76% @ 15 keV/amu +/- 4.45% @ 35 keV/amu +/-18.98% @ 70 keV/amu     8.00D+13 cm-3   2.00D+03 eV
   +/- 5.74% @ 15 keV/amu +/- 4.37% @ 35 keV/amu +/-18.83% @ 70 keV/amu     9.00D+13 cm-3   2.00D+03 eV
   +/- 5.71% @ 15 keV/amu +/- 4.35% @ 35 keV/amu +/-18.70% @ 70 keV/amu     1.00D+14 cm-3   2.00D+03 eV
   +/- 5.57% @ 15 keV/amu +/- 4.10% @ 35 keV/amu +/-17.66% @ 70 keV/amu     2.00D+14 cm-3   2.00D+03 eV
   +/- 5.50% @ 15 keV/amu +/- 3.98% @ 35 keV/amu +/-17.14% @ 70 keV/amu     3.00D+14 cm-3   2.00D+03 eV
   +/- 5.42% @ 15 keV/amu +/- 3.79% @ 35 keV/amu +/-16.55% @ 70 keV/amu     5.00D+14 cm-3   2.00D+03 eV
   +/- 5.40% @ 15 keV/amu +/- 3.71% @ 35 keV/amu +/-16.35% @ 70 keV/amu     6.00D+14 cm-3   2.00D+03 eV
   +/- 5.38% @ 15 keV/amu +/- 3.69% @ 35 keV/amu +/-16.24% @ 70 keV/amu     7.00D+14 cm-3   2.00D+03 eV
   +/- 5.37% @ 15 keV/amu +/- 3.68% @ 35 keV/amu +/-16.16% @ 70 keV/amu     8.00D+14 cm-3   2.00D+03 eV
   +/- 5.35% @ 15 keV/amu +/- 3.61% @ 35 keV/amu +/-16.09% @ 70 keV/amu     9.00D+14 cm-3   2.00D+03 eV
   +/- 5.34% @ 15 keV/amu +/- 3.60% @ 35 keV/amu +/-15.98% @ 70 keV/amu     1.00D+15 cm-3   2.00D+03 eV

              WORKING ACCURACY OF THE EFFECTIVE BEAM 
              STOPPING COEFFICIENT AT THE REFERENCE       REFERENCE         REFERENCE
              ENERGY AND DENSITY                          ENERGY            DENSITY         TEMPERATURE
              ---------------------------------------    ---------          ---------       -----------

                         +/-14.44%                        6.50D+04 keV/amu  6.00D+13 cm-3   1.00D+02 eV
                         +/-14.54%                        6.50D+04 keV/amu  6.00D+13 cm-3   2.00D+02 eV
                         +/-14.68%                        6.50D+04 keV/amu  6.00D+13 cm-3   3.00D+02 eV
                         +/-15.17%                        6.50D+04 keV/amu  6.00D+13 cm-3   5.00D+02 eV
                         +/-15.32%                        6.50D+04 keV/amu  6.00D+13 cm-3   6.00D+02 eV
                         +/-15.46%                        6.50D+04 keV/amu  6.00D+13 cm-3   7.00D+02 eV
                         +/-15.64%                        6.50D+04 keV/amu  6.00D+13 cm-3   8.00D+02 eV
                         +/-15.81%                        6.50D+04 keV/amu  6.00D+13 cm-3   8.97D+02 eV
                         +/-15.91%                        6.50D+04 keV/amu  6.00D+13 cm-3   1.00D+03 eV
                         +/-16.81%                        6.50D+04 keV/amu  6.00D+13 cm-3   2.00D+03 eV
                         +/-17.49%                        6.50D+04 keV/amu  6.00D+13 cm-3   3.00D+03 eV
                         +/-18.11%                        6.50D+04 keV/amu  6.00D+13 cm-3   5.00D+03 eV
                         +/-18.24%                        6.50D+04 keV/amu  6.00D+13 cm-3   6.00D+03 eV
                         +/-18.36%                        6.50D+04 keV/amu  6.00D+13 cm-3   7.00D+03 eV
                         +/-18.45%                        6.50D+04 keV/amu  6.00D+13 cm-3   8.00D+03 eV
                         +/-18.54%                        6.50D+04 keV/amu  6.00D+13 cm-3   8.97D+03 eV
                         +/-18.61%                        6.50D+04 keV/amu  6.00D+13 cm-3   1.00D+04 eV
                         +/-18.49%                        6.50D+04 keV/amu  6.00D+13 cm-3   2.00D+04 eV
                         +/-18.09%                        6.50D+04 keV/amu  6.00D+13 cm-3   3.00D+04 eV
                         +/-17.19%                        6.50D+04 keV/amu  6.00D+13 cm-3   5.00D+04 eV



	NOTE : Working accuracy


	The  working  accuracy  was  obtained by  calculating  the effective 
	beam stopping coefficient via ADAS310 using three different ion/atom
	collision cross-section databases,  i.e. ADF02  type files. An ADF02
	type file contains  indexed entries  of key ion/atom reaction cross-
	sections with  H and other species. The first detailed assessment of 
	ion/atom cross section data for beam stopping was completed  at  JET 
	in 1989 ( small corrections and extensions were made to the file up
	to 1993 ) . This file was originally saved /adas/adf02/ionatom/h.dat 
	but was later reformatted and saved as /adf02/sia#h/sia#h_rfm#h.dat. 
	Guided by  experimental  observations at JET  and the  lack  of high 
	quality CCAO calculations when the  JET 1989  data set was compiled, 
	the cross-sections of the JET 1989  data  set  was considered to be 
	some what under-estimated.  A  new review of all  ion/atom collision 
	data was carried out. The only substantial  contribution  found  was 
	that of the  close  coupled  atomic  orbital (CCAO)  calculations of 
	Toshima & Tawara [1]. This  data  together  with the data of Janev & 
	Smith [2]  was  used  to  create  yet  another  ADF02  type  file,
	sia#h_tosh#h.dat.However,the CCAO calculations of Toshima & Tawara[1] 
	only include states up to n=4 and so some over-estimation is present,
	particularly for ion  impact  ionisation from n=3 and n=4 shell. The 
	cross-sections contained in this  data set are considered to be over-
	estimated.  A  comparative  data  set  was  constructed  which  was a 
	compromise between both data sets,this is what is called the JET 1997
	review data set, sia#h_j97#h.dat. The  JET  1997  review  data is the 
	preferred data set. The  working  accuracy  was  obtained  by running 
	ADAS310 using  each data set.  The  results  from using  the JET 1997 
	review data  is  taken  as  the most accurate  value.The results from 
	using the JET 1989  data  set  are  used to obtain a lower  limit.The 
	results from the Toshima & Tawara data set are used to obtain an upper
	limit. Using the values of  the  lower  and  upper limit a percentage 
	difference is used to describe the MAXIMUM deviation from the results
	obtained using the JET 1997 review data. 


	REFERENCES

	[1] Toshima,N. & Tawara,H.,NIFS-DATA-26,July 1995.
	[2] Janev,R.K.& Smith,J.J.,J.Nucl.Fusion(Supplement),Vol.4,1993.




	CONTACT : HARVEY ANDERSON
		  UNIVERSITY OF STRATHCLYDE
		  ANDERSON@CHAMBA.PHYS.STRATH.AC.UK
	  
	DATE    : 08/07/97


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Contributors

  • K P Dere
  • Harvey Anderson
  • Reference
  • Processes
  • Comments
  • Origins

Data Classes