[Halld-cpp] CPP target density?

[Justin Stevens]

Sorry for the spam, but I realized that for completeness we also need the thickness and uncertainties on these values. I found  this wiki page https://halldweb.jlab.org/wiki/index.php/CPP-NPP_Target but would like someone to confirm these numbers and provide some uncertainties for the density and thickness?

-Justin

On Feb 17, 2025, at 2:44 PM, Justin Stevens via Halld-cpp <halld-cpp at jlab.org> wrote:

Hi All,

I’m working on adding the photon flux to CCDB so that we can use our standard tools to compute the flux for each run.  Part of that process for our typical LH2 runs is to store the target density (g / cm^3) in CCDB so that we can convert the flux to luminosity.  My question is: what is the density of the lead target for CPP that I should put in this table https://halldweb.jlab.org/cgi-bin/ccdb/versions?table=/TARGET/density ?

-Justin
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