@article{PAR00019761, title = {{P}reliminary results of {C}o{Q}tz-{N} : a quartz reference material for terrestrial in situ cosmogenic {B}e-10 and {A}l-26 measurements}, author = {{B}innie, {S}. {A}. and {D}ewald, {A}. and {H}einze, {S}. and {V}oronina, {E}. and {H}ein, {A}. and {W}ittmann, {H}. and von {B}lanckenburg, {F}. and {H}etzel, {R}. and {C}hristl, {M}. and {S}challer, {M}. and {L}eanni, {L}aetitia and {H}ippe, {K}. and {V}ockenhuber, {C}. and {I}vy-{O}chs, {S}. and {M}aden, {C}. and {F}ulop, {R}. {H}. and {F}ink, {D}. and {W}ilcken, {K}. {M}. and {F}ujioka, {T}. and {F}abel, {D}. and {F}reeman, {S}pht and {X}u, {S}. and {F}ifield, {L}. {K}. and {A}kcar, {N}. and {S}piegel, {C}. and {D}unai, {T}. {J}. and {A}umaitre, {G}. and {B}ourles, {D}. {L}. and {K}eddadouche, {K}. and {A}ster {T}eam,}, editor = {}, language = {{ENG}}, abstract = {{T}here is growing interest in geochronological applications of terrestrial in situ-produced cosmogenic nuclides, with the most commonly measured being {B}e-10 and {A}l-26 in quartz. {T}o extract and then separate these radio-nuclides from quartz and prepare them in the oxide form suitable for accelerator mass spectrometry ({AMS}) requires extensive and careful laboratory processing. {H}ere we discuss the suitability of a crushed, sieved and etched, sub-aerially exposed vein quartz specimen ({C}o{Q}tz-{N}) to act as a reference material for chemical laboratory preparation and {AMS} measurements. {S}plits of {C}o{Q}tz-{N} were distributed to eleven target preparation laboratories. {T}he {C}o{Q}tz-{N} {B}e-10 targets were then measured at seven different {AMS} facilities and five of the preparation laboratories had their {A}l-26 targets measured at four different {AMS} facilities. {W}e show that {C}o{Q}tz-{N} splits are sufficiently homogeneous with regard to nuclide concentrations, that it has been cleaned of any atmospheric derived (i.e. meteoric) {B}e-10 and that it has low concentrations of the major elements that can interfere with {B}e and {A}l extraction chemistry and {AMS} measurements. {W}e derive preliminary concentrations for {B}e-10 and {A}l-26 in {C}o{Q}tz-{N} as 2.53 +/- 0.09 x 10(6) at/g and 15.6 +/- 1.6 x 10(6) at/g, respectively, at the 95% confidence limit.}, keywords = {{A}l-26 ; {B}e-10 ; {C}o{Q}tz-{N} ; {C}osmogenic nuclides ; {R}eference material}, booktitle = {}, journal = {{N}uclear {I}nstruments and {M}ethods in {P}hysics {R}esearch {S}ection {B} : {B}eam {I}nteractions with {M}aterials and {A}toms}, volume = {456}, numero = {}, pages = {203--212}, ISSN = {0168-583{X}}, year = {2019}, DOI = {10.1016/j.nimb.2019.04.073}, URL = {https://www.documentation.ird.fr/hor/{PAR}00019761}, }