Electronic Stopping Power of Matter for Ions

Helium Ions on Atoms and Compounds

In the following table you can find the electronic stopping power of He ions in atomic and molecular targets, plotted as a function of the projectile energy. For each ion-target, you can download the graph (image), the data file (ascii) and the origin plot. The data reference codes are explained in the list of data references, and the curve labels are given in the list of stopping power tables and programs.

Some systems with only one or two sets of measurements (published prior to 2016) have not been plotted yet, although the data has been included in the database. All the data published since 1929 (for all ion-target systems) can be downloaded here.

Ions	Target	Graph	Files	Comments
He Ions	Acetylene	Click here	ORIGIN, DATA
He Ions	Ag	Click here	ORIGIN, DATA	SRIM13 and ICRU49 do not describe the low energy data by Gö13. Change of slope at 3 keV, the velocity constant changes (see Gö13).
He Ions	Air	Click here	ORIGIN, DATA
He Ions	Al, versus v	Click here	ORIGIN
He Ions	Al	Click here	ORIGIN, DATA
He Ions	Al₂O₃	Click here	ORIGIN, DATA
He Ions	Ar	Click here	ORIGIN, DATA (gas) DATA (solid)	In agreement with Chu’s and Besenbacher’s measurements, SRIM2003 predicts no gas-solid difference. Excellent agreement of SRIM03 and ICRU 49 with the data
He Ions	Au	Click here	ORIGIN, DATA	Measurements since 1990 in colour
He Ions	Au, versus v	Click here	ORIGIN	There is an indication of a stopping threshold similar to the case of H ions in Au. The theory by Zeb12 shows a change of steepness there.
He Ions	B	Click here	ORIGIN, DATA
He Ions	Be	Click here	ORIGIN, DATA
He Ions	Bi	Click here	ORIGIN, DATA	New data Mm19 confirms the tendency around the stopping maximum.
He Ions	Butane	Click here	ORIGIN, DATA
He Ions	C	Click here	ORIGIN, DATA	Pe81 data are too high compared to many others
He Ions	Ca	Click here	ORIGIN, DATA	Only one set of data. Large discrepancy between Eppacher measurements and SRIM 2013
He Ions	CCl₄ liquid, vapor	Click here	ORIGIN, DATA (liquid), DATA (vapor)
He Ions	CF₄	Click here	ORIGIN, DATA
He Ions	CH₄	Click here	ORIGIN, DATA
He Ions	CO₂	Click here	ORIGIN, DATA
He Ions	Co	Click here	ORIGIN, DATA	Excellent agreement of SRIM03 with the data
He Ions	Cr	Click here	ORIGIN, DATA
He Ions	CR-39	Click here	ORIGIN, DATA	Cr-39 is nuclear track material, polyallylglycol carbonate, C₁₂H₁₈O₇
He Ions	Cu	Click here	ORIGIN, DATA	Data by KJ85, was added to the plot, showing good agreement with the rest.
He Ions	Cyclohexane liquid, vapor	Click here	ORIGIN, DATA
He Ions	Cyclopropane	Click here	ORIGIN, DATA
He Ions	Dy	Click here	ORIGIN, DATA	Good agreement of SRIM03 with most of the data
He Ions	Er	Click here	ORIGIN, DATA	Good agreement of SRIM03 with most of the data
He Ions	Ethane	Click here	ORIGIN, DATA
He Ions	Ethyl alcohol liquid	Click here	ORIGIN DATA
He Ions	Ethyl alcohol liquid, vapor	Click here	ORIGIN, DATA
He Ions	Ethylene	Click here	ORIGIN, DATA
He Ions	Fe	Click here	ORIGIN, DATA	Good agreement of the curves (except for Z99) with most of the data
He Ions	Formvar	Click here	ORIGIN, DATA
He Ions	GaN		DATA	only one set of data: BA12
He Ions	GaSb	Click here	ORIGIN, DATA
He Ions	Gd	Click here	ORIGIN, DATA	Only two sets of data in a small energy region. The high energy measurements for H in Gd (x4) have been added only to have a comparison.
He Ions	Ge	Click here	ORIGIN, DATA
He Ions	Graphite	Click here	ORIGIN, DATA
He Ions	Graphite Oxide	Click here	ORIGIN, DATA
He Ions	H₂	Click here	ORIGIN, DATA	Good agreement between Z12, ICRU 49 and the data.
He Ions	H₂O condensed	Click here	ORIGIN, DATA	GarM09 curve reproduces the data quite well
He Ions	H₂O vapor	Click here	ORIGIN, DATA	SRIM with Bragg rule agrees better with the data than the suggested correction of -6%
He Ions	H₂O phase effect	Click here	ORIGIN	The agreement of ICRU49 with the data is very good. Stopping by vapor water is above condensed (liquid water and ice) for impact energies below 400 keV/amu.
He Ions	H₂S	Click here	ORIGIN, DATA
He Ions	Havar	Click here	ORIGIN, DATA
He Ions	He	Click here	ORIGIN, DATA	Good agreement between curves and measurements since 1980 up to now. Note that the low energy data by Jedrejcic (Jed18) and by Golser (Gl92b) include nuclear stopping
He Ions	Heptane liquid, vapor	Click here	ORIGIN, DATA
He Ions	Hexane liquid, vapor	Click here	ORIGIN, DATA
He Ions	Hf	Click here	ORIGIN, DATA	Only one data! More measurements are needed
He Ions	HfO₂	Click here	ORIGIN, DATA
He ions	Hydroxy apatite	Click here	ORIGIN, DATA
He Ions	InN	Click here	ORIGIN, DATA
He Ions	In	Click here	ORIGIN, DATA	Data by Chu (1969) and by the group of P. Bauer(2014) are in reasonable agreement around the stopping maximum, as described by SRIM and MSTAR
He Ions	Kapton, Polyimide	Click here	ORIGIN, DATA
He Ions	KCl, versus v	Click here	ORIGIN, DATA	The new Mk09 data show an (extrapolated) threshold
He Ions	Kr	Click here	ORIGIN, DATA	Good agreement of SRIM03 and ICRU 49 with the data
He Ions	La	Click here	ORIGIN, DATA	Good agreement of SRIM-2013 with most of the data.
He Ions	Li	Click here	ORIGIN, DATA	Only two sets of data. Unexpected values of Ep94a around stopping maximum. The high energy measurements for H in Li (x4) have been added only to have a comparison.
He Ions	LiF, versus v	Click here	ORIGIN, DATA	The new Mk09 data show a threshold at v = 0.1 a.u. (250 eV/u)
He Ions	LR115	Click here	ORIGIN, DATA	LR115 is cellulose nitrate, nuclear track material, it is C₆H₈O₅(NO₂)₂, but can also be C₆H₈O₅(NO₂)H. Both SRIM curves are included in the plot.
He Ions	Lu	Click here	ORIGIN, DATA	First data, by Trz18. SRIM-2013 overestimates these experiments around the maximum
He Ions	Methane	Click here	ORIGIN, DATA
He Ions	Methyl alcohol liquid, vapor	Click here	ORIGIN, DATA-liquid, DATA-vapor	Clear liquid-gas difference around the stopping maximum
He Ions	Mg	Click here	ORIGIN, DATA
He Ions	Mn	Click here	ORIGIN, DATA	SRIM13 correctly describes the data by Chu and White in 1969.
He Ions	Mo	Click here, for the low energy figure Click here	ORIGIN, DATA	The Sp98 data are exceptional in that they go down as far as 0.01 keV. But these values are based on an evaluation of measured ranges for 5 - 100 keV He ions, taking the energy dependence from TRIM 95. H. Paul re-evaluated the Sp98 data by a comparison with Monte Carlo ranges from SRIM 2003 (circles).
He Ions	Mylar	Click here	ORIGIN, DATA
He Ions	N₂	Click here	ORIGIN, DATA	Excellent agreement between curves and the data. Recent data by Jed18 includes nuclear stopping.
He Ions	Nb	Click here	ORIGIN, DATA	Agreement between data by Mor20 and Bv02. SRIM follows previous data Li73b.
He Ions	Nb2O5	Click here	ORIGIN, DATA	Excellent agreement between curves and data
He Ions	Ne	Click here	ORIGIN, DATA	Excellent agreement between curves and data
He Ions	Ni	Click here	ORIGIN, DATA	Excellent agreement of SRIM13 with the data even at very low energies.
He Ions	NiSi	Click here	ORIGIN, DATA
He Ions	O₂	Click here	ORIGIN, DATA	Excellent agreement between SRIM03, ICRU 49 and data
He Ions	Pb	Click here	ORIGIN, DATA
He Ions	Pd	Click here	ORIGIN, DATA	This figure includes the data by Rosenblum in 1928! excellent agreement of SRIM2013.
He Ions	Pentane liquid, vapor	Click here	ORIGIN, DATA
He Ions	3-Pentanone vapor	Click here	ORIGIN, DATA
He Ions	Polycarbonate	Click here	ORIGIN, DATA
He Ions	Polypropylene	Click here	ORIGIN, DATA
He Ions	Polystyrene	Click here	ORIGIN, DATA
He Ions	Polysulfone	Click here	ORIGIN, DATA
He Ions	Propane	Click here	ORIGIN, DATA
He Ions	Propyl alcohol vapor	Click here	ORIGIN, DATA
He Ions	Propylene	Click here	ORIGIN, DATA
He Ions	Propylene oxide vapor	Click here	ORIGIN, DATA
He Ions	Pt	Click here	ORIGIN, DATA	The most recent data question the SRIM predictions below 1 MeV
He Ions	Sb	Click here	ORIGIN, DATA	Good agreement of SRIM-2013 with most of the data.
He Ions	Se	Click here	ORIGIN, DATA	Fair agreement of SRIM03 with the data, except for Co83
He Ions	SF₆	Click here	ORIGIN, DATA
He Ions	Si	Click here	ORIGIN, DATA	The tendency of the newest data seems to confirm SRIM-2013 around the maximum. There is a clear disagreement between new data and curves in the (20-100) keV region.
He Ions	SiC	Click here	ORIGIN, DATA
He Ions	Silicon Nitride	Click here	ORIGIN, DATA
He Ions	SiO₂	Click here	ORIGIN, DATA
He Ions	SiO₂, versus v	Click here	ORIGIN	Contrary to the hydrogen data, the helium data do not show a threshold
He Ions	Sn	Click here	ORIGIN, DATA	Good agreement of SRIM13 with the data except for Ep94a
He Ions	Ta	Click here	ORIGIN, DATA	Good agreement of SRIM with most of the data
He Ions	Ta₂O₅	Click here	ORIGIN, DATA
He Ions	Tb	Click here	ORIGIN, DATA	SRIM underestimates recent data Kum18
He Ions	Te	Click here	ORIGIN, DATA
He Ions	Th	Click here	ORIGIN, DATA	First data, by Trz18. Good agreement of SRIM-2013 with these new data.
He Ions	Ti	Click here	ORIGIN, DATA	Good agreement of the curves with the data (except for Gt62)
He Ions	TiN	Click here	ORIGIN, DATA	SRIM13 with and without compound correction is included
He Ions	TiO₂	Click here	ORIGIN, DATA
He Ions	V	Click here	ORIGIN, DATA	Excellent agreement of SRIM03 with the data
He Ions	Vyns	Click here	ORIGIN, DATA
He Ions	W	Click here	ORIGIN, DATA	Good agreement of SRIM03, ICRU49 and the data
He Ions	Xe	Click here	ORIGIN, DATA	Excellent agreement of SRIM03 with the data; ICRU 49 fits less well at 2000 keV
He Ions	Y	Click here	ORIGIN, DATA	Fair agreement of SRIM03 with the data, except for Ep94a at low energy
He Ions	Zn	Click here	ORIGIN, DATA
He Ions	ZnO	Click here	ORIGIN, DATA	Only one set of data (Fa16) available.
He Ions	ZnTe	Click here	ORIGIN, DATA
He Ions	Zr	Click here	ORIGIN, DATA	Good agreement of SRIM-2013 with the only one set of data available.

Click here to get all the ORIGIN files for He ion in this table. To download all the DATA for stopping of Helium ions in the table click here.

The list of data for Helium ions published prior to 2016 is enumerated here. In this list, every line corresponds to one data file. The targets are ordered alphabetically. The headings in the list have the following meaning:

M	Mass Number of Projectile
Eq. Energy	Equivalent Proton Energy, i.e., energy of a proton of equal speed
Error	Error in percent. "e" means estimate.
Ref.	Reference Code, see list of all data references
Meas.	Number of measurement within the publication (you don’t need that!)/p>
Method	Method of measurement according to classification by Paul, Semrad and Seilinger, Table 5
Ag.	State of aggregation (s: solid; g: gaseous). G: graphite (as opposed to amorphous carbon)
File	File designation: the file name Al.005, e.g., means file number 5 for hydrogen ions on Al.